Purchase orders

lib/data/models/company_model.dart

@@ -140,6 +140,7 @@ abstract class CompanyEntity extends Object
       subscriptions: BuiltList<SubscriptionEntity>(),
       systemLogs: BuiltList<SystemLogEntity>(),
       clientRegistrationFields: BuiltList<RegistrationFieldEntity>(),
+      purchaseOrders: BuiltList<InvoiceEntity>(),
     );
   }
 
@@ -314,6 +315,9 @@ abstract class CompanyEntity extends Object
 
   BuiltList<InvoiceEntity> get credits;
 
+  @BuiltValueField(wireName: 'purchase_orders')
+  BuiltList<InvoiceEntity> get purchaseOrders;
+
   BuiltList<TaskEntity> get tasks;
 
   BuiltList<ProjectEntity> get projects;
@@ -563,6 +567,7 @@ abstract class CompanyEntity extends Object
           ..invoices.clear()
           ..payments.clear()
           ..quotes.clear()
+          ..purchaseOrders.clear()
           ..credits.clear()
           ..tasks.clear()
           ..projects.clear()
@@ -633,7 +638,8 @@ abstract class CompanyEntity extends Object
     ..systemLogs.replace(BuiltList<SystemLogEntity>())
     ..subscriptions.replace(BuiltList<SubscriptionEntity>())
     ..recurringExpenses.replace(BuiltList<ExpenseEntity>())
-    ..clientRegistrationFields.replace(BuiltList<RegistrationFieldEntity>());
+    ..clientRegistrationFields.replace(BuiltList<RegistrationFieldEntity>())
+    ..purchaseOrders.replace(BuiltList<InvoiceEntity>());
 
   static Serializer<CompanyEntity> get serializer => _$companyEntitySerializer;
 }

lib/data/models/company_model.g.dart

@@ -222,6 +222,10 @@ class _$CompanyEntitySerializer implements StructuredSerializer<CompanyEntity> {
       serializers.serialize(object.credits,
           specifiedType:
               const FullType(BuiltList, const [const FullType(InvoiceEntity)])),
+      'purchase_orders',
+      serializers.serialize(object.purchaseOrders,
+          specifiedType:
+              const FullType(BuiltList, const [const FullType(InvoiceEntity)])),
       'tasks',
       serializers.serialize(object.tasks,
           specifiedType:
@@ -643,6 +647,12 @@ class _$CompanyEntitySerializer implements StructuredSerializer<CompanyEntity> {
                       BuiltList, const [const FullType(InvoiceEntity)]))
               as BuiltList<Object>);
           break;
+        case 'purchase_orders':
+          result.purchaseOrders.replace(serializers.deserialize(value,
+                  specifiedType: const FullType(
+                      BuiltList, const [const FullType(InvoiceEntity)]))
+              as BuiltList<Object>);
+          break;
         case 'tasks':
           result.tasks.replace(serializers.deserialize(value,
                   specifiedType: const FullType(
@@ -1511,6 +1521,8 @@ class _$CompanyEntity extends CompanyEntity {
   @override
   final BuiltList<InvoiceEntity> credits;
   @override
+  final BuiltList<InvoiceEntity> purchaseOrders;
+  @override
   final BuiltList<TaskEntity> tasks;
   @override
   final BuiltList<ProjectEntity> projects;
@@ -1646,6 +1658,7 @@ class _$CompanyEntity extends CompanyEntity {
       this.payments,
       this.quotes,
       this.credits,
+      this.purchaseOrders,
       this.tasks,
       this.projects,
       this.expenses,
@@ -1791,6 +1804,8 @@ class _$CompanyEntity extends CompanyEntity {
         payments, 'CompanyEntity', 'payments');
     BuiltValueNullFieldError.checkNotNull(quotes, 'CompanyEntity', 'quotes');
     BuiltValueNullFieldError.checkNotNull(credits, 'CompanyEntity', 'credits');
+    BuiltValueNullFieldError.checkNotNull(
+        purchaseOrders, 'CompanyEntity', 'purchaseOrders');
     BuiltValueNullFieldError.checkNotNull(tasks, 'CompanyEntity', 'tasks');
     BuiltValueNullFieldError.checkNotNull(
         projects, 'CompanyEntity', 'projects');
@@ -1920,6 +1935,7 @@ class _$CompanyEntity extends CompanyEntity {
         payments == other.payments &&
         quotes == other.quotes &&
         credits == other.credits &&
+        purchaseOrders == other.purchaseOrders &&
         tasks == other.tasks &&
         projects == other.projects &&
         expenses == other.expenses &&
@@ -1980,7 +1996,7 @@ class _$CompanyEntity extends CompanyEntity {
                                                                 $jc(
                                                                     $jc(
                                                                         $jc(
-                                                                            $jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc(0, enableCustomSurchargeTaxes1.hashCode), enableCustomSurchargeTaxes2.hashCode), enableCustomSurchargeTaxes3.hashCode), enableCustomSurchargeTaxes4.hashCode), sizeId.hashCode), industryId.hashCode), subdomain.hashCode), portalMode.hashCode), portalDomain.hashCode), updateProducts.hashCode), convertProductExchangeRate.hashCode), convertRateToClient.hashCode), fillProducts.hashCode), enableProductCost.hashCode), enableProductQuantity.hashCode), enableProductDiscount.hashCode), defaultTaskIsDateBased.hashCode), defaultQuantity.hashCode), showProductDetails.hashCode), clientCanRegister.hashCode), isLarge.hashCode), isDisabled.hashCode), enableShopApi.hashCode), companyKey.hashCode), firstDayOfWeek.hashCode), firstMonthOfYear.hashCode), numberOfInvoiceTaxRates.hashCode), numberOfItemTaxRates.hashCode), expenseInclusiveTaxes.hashCode), sessionTimeout.hashCode), passwordTimeout.hashCode), oauthPasswordRequired.hashCode), markdownEnabled.hashCode), markdownEmailEnabled.hashCode), useCommaAsDecimalPlace.hashCode), reportIncludeDrafts.hashCode), useQuoteTermsOnConversion.hashCode), enableApplyingPayments.hashCode), trackInventory.hashCode), stockNotificationThreshold.hashCode), stockNotification.hashCode), groups.hashCode), activities.hashCode), taxRates.hashCode), taskStatuses.hashCode), taskStatusMap.hashCode), companyGateways.hashCode), expenseCategories.hashCode), users.hashCode), clients.hashCode), products.hashCode), invoices.hashCode), recurringInvoices.hashCode), recurringExpenses.hashCode), payments.hashCode), quotes.hashCode), credits.hashCode), tasks.hashCode), projects.hashCode), expenses.hashCode), vendors.hashCode), designs.hashCode), documents.hashCode), tokens.hashCode), webhooks.hashCode), subscriptions.hashCode), paymentTerms.hashCode), systemLogs.hashCode), clientRegistrationFields.hashCode), customFields.hashCode), slackWebhookUrl.hashCode), googleAnalyticsKey.hashCode), markExpensesInvoiceable.hashCode), markExpensesPaid.hashCode), invoiceExpenseDocuments.hashCode),
+                                                                            $jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc(0, enableCustomSurchargeTaxes1.hashCode), enableCustomSurchargeTaxes2.hashCode), enableCustomSurchargeTaxes3.hashCode), enableCustomSurchargeTaxes4.hashCode), sizeId.hashCode), industryId.hashCode), subdomain.hashCode), portalMode.hashCode), portalDomain.hashCode), updateProducts.hashCode), convertProductExchangeRate.hashCode), convertRateToClient.hashCode), fillProducts.hashCode), enableProductCost.hashCode), enableProductQuantity.hashCode), enableProductDiscount.hashCode), defaultTaskIsDateBased.hashCode), defaultQuantity.hashCode), showProductDetails.hashCode), clientCanRegister.hashCode), isLarge.hashCode), isDisabled.hashCode), enableShopApi.hashCode), companyKey.hashCode), firstDayOfWeek.hashCode), firstMonthOfYear.hashCode), numberOfInvoiceTaxRates.hashCode), numberOfItemTaxRates.hashCode), expenseInclusiveTaxes.hashCode), sessionTimeout.hashCode), passwordTimeout.hashCode), oauthPasswordRequired.hashCode), markdownEnabled.hashCode), markdownEmailEnabled.hashCode), useCommaAsDecimalPlace.hashCode), reportIncludeDrafts.hashCode), useQuoteTermsOnConversion.hashCode), enableApplyingPayments.hashCode), trackInventory.hashCode), stockNotificationThreshold.hashCode), stockNotification.hashCode), groups.hashCode), activities.hashCode), taxRates.hashCode), taskStatuses.hashCode), taskStatusMap.hashCode), companyGateways.hashCode), expenseCategories.hashCode), users.hashCode), clients.hashCode), products.hashCode), invoices.hashCode), recurringInvoices.hashCode), recurringExpenses.hashCode), payments.hashCode), quotes.hashCode), credits.hashCode), purchaseOrders.hashCode), tasks.hashCode), projects.hashCode), expenses.hashCode), vendors.hashCode), designs.hashCode), documents.hashCode), tokens.hashCode), webhooks.hashCode), subscriptions.hashCode), paymentTerms.hashCode), systemLogs.hashCode), clientRegistrationFields.hashCode), customFields.hashCode), slackWebhookUrl.hashCode), googleAnalyticsKey.hashCode), markExpensesInvoiceable.hashCode), markExpensesPaid.hashCode), invoiceExpenseDocuments.hashCode),
                                                                                 invoiceTaskDocuments.hashCode),
                                                                             invoiceTaskTimelog.hashCode),
                                                                         invoiceTaskDatelog.hashCode),
@@ -2062,6 +2078,7 @@ class _$CompanyEntity extends CompanyEntity {
           ..add('payments', payments)
           ..add('quotes', quotes)
           ..add('credits', credits)
+          ..add('purchaseOrders', purchaseOrders)
           ..add('tasks', tasks)
           ..add('projects', projects)
           ..add('expenses', expenses)
@@ -2394,6 +2411,12 @@ class CompanyEntityBuilder
       _$this._credits ??= new ListBuilder<InvoiceEntity>();
   set credits(ListBuilder<InvoiceEntity> credits) => _$this._credits = credits;
 
+  ListBuilder<InvoiceEntity> _purchaseOrders;
+  ListBuilder<InvoiceEntity> get purchaseOrders =>
+      _$this._purchaseOrders ??= new ListBuilder<InvoiceEntity>();
+  set purchaseOrders(ListBuilder<InvoiceEntity> purchaseOrders) =>
+      _$this._purchaseOrders = purchaseOrders;
+
   ListBuilder<TaskEntity> _tasks;
   ListBuilder<TaskEntity> get tasks =>
       _$this._tasks ??= new ListBuilder<TaskEntity>();
@@ -2647,6 +2670,7 @@ class CompanyEntityBuilder
       _payments = $v.payments.toBuilder();
       _quotes = $v.quotes.toBuilder();
       _credits = $v.credits.toBuilder();
+      _purchaseOrders = $v.purchaseOrders.toBuilder();
       _tasks = $v.tasks.toBuilder();
       _projects = $v.projects.toBuilder();
       _expenses = $v.expenses.toBuilder();
@@ -2777,6 +2801,7 @@ class CompanyEntityBuilder
               payments: payments.build(),
               quotes: quotes.build(),
               credits: credits.build(),
+              purchaseOrders: purchaseOrders.build(),
               tasks: tasks.build(),
               projects: projects.build(),
               expenses: expenses.build(),
@@ -2849,6 +2874,8 @@ class CompanyEntityBuilder
         quotes.build();
         _$failedField = 'credits';
         credits.build();
+        _$failedField = 'purchaseOrders';
+        purchaseOrders.build();
         _$failedField = 'tasks';
         tasks.build();
         _$failedField = 'projects';

lib/data/models/entities.dart

@@ -62,6 +62,7 @@ class EntityType extends EnumClass {
   static const EntityType timezone = _$timezone;
   static const EntityType dateFormat = _$dateFormat;
   static const EntityType font = _$font;
+  static const EntityType purchaseOrder = _$purchaseOrder;
 
   String get plural {
     if (this == EntityType.expenseCategory) {

lib/data/models/entities.g.dart

@@ -50,6 +50,7 @@ const EntityType _$document = const EntityType._('document');
 const EntityType _$timezone = const EntityType._('timezone');
 const EntityType _$dateFormat = const EntityType._('dateFormat');
 const EntityType _$font = const EntityType._('font');
+const EntityType _$purchaseOrder = const EntityType._('purchaseOrder');
 
 EntityType _$typeValueOf(String name) {
   switch (name) {
@@ -141,6 +142,8 @@ EntityType _$typeValueOf(String name) {
       return _$dateFormat;
     case 'font':
       return _$font;
+    case 'purchaseOrder':
+      return _$purchaseOrder;
     default:
       throw new ArgumentError(name);
   }
@@ -192,6 +195,7 @@ final BuiltSet<EntityType> _$typeValues =
   _$timezone,
   _$dateFormat,
   _$font,
+  _$purchaseOrder,
 ]);
 
 const EntityState _$active = const EntityState._('active');

lib/data/models/purchase_order_model.dart

@@ -0,0 +1,52 @@
+class PurchaseOrderFields {
+  static const String total = 'total';
+  static const String amount = 'amount';
+  static const String balance = 'balance';
+  static const String balanceDue = 'balance_due';
+  static const String clientId = 'client_id';
+  static const String client = 'client';
+  static const String project = 'project';
+  static const String vendor = 'vendor';
+  static const String statusId = 'status_id';
+  static const String status = 'status';
+  static const String number = 'number';
+  static const String discount = 'discount';
+  static const String poNumber = 'po_number';
+  static const String date = 'date';
+  static const String dueDate = 'due_date';
+  static const String nextSendDate = 'next_send_date';
+  static const String lastSentDate = 'last_sent_date';
+  static const String terms = 'terms';
+  static const String footer = 'footer';
+  static const String partial = 'partial_due';
+  static const String partialDueDate = 'partial_due_date';
+  static const String publicNotes = 'public_notes';
+  static const String privateNotes = 'private_notes';
+  static const String isRecurring = 'is_recurring';
+  static const String frequencyId = 'frequency_id';
+  static const String documents = 'documents';
+  static const String customValue1 = 'custom1';
+  static const String customValue2 = 'custom2';
+  static const String customValue3 = 'custom3';
+  static const String customValue4 = 'custom4';
+  static const String customSurcharge1 = 'custom_surcharge1';
+  static const String customSurcharge2 = 'custom_surcharge2';
+  static const String customSurcharge3 = 'custom_surcharge3';
+  static const String customSurcharge4 = 'custom_surcharge4';
+  static const String taxAmount = 'tax_amount';
+  static const String reminder1Sent = 'reminder1_sent';
+  static const String reminder2Sent = 'reminder2_sent';
+  static const String reminder3Sent = 'reminder3_sent';
+  static const String reminderLastSent = 'reminder_last_sent';
+  static const String exchangeRate = 'exchange_rate';
+  static const String isViewed = 'is_viewed';
+  static const String autoBillEnabled = 'auto_bill_enabled';
+  static const String contactName = 'contact_name';
+  static const String contactEmail = 'contact_email';
+  static const String clientCity = 'client_city';
+  static const String clientState = 'client_state';
+  static const String clientPostalCode = 'client_postal_code';
+  static const String clientCountry = 'client_country';
+  static const String quote = 'quote';
+  static const String recurringInvoice = 'recurring_invoice';
+}

lib/data/models/quote_model.dart

@@ -1,47 +1,3 @@
-// Package imports:
-import 'package:built_collection/built_collection.dart';
-import 'package:built_value/built_value.dart';
-import 'package:built_value/serializer.dart';
-
-// Project imports:
-import 'package:invoiceninja_flutter/data/models/models.dart';
-
-part 'quote_model.g.dart';
-
-abstract class QuoteListResponse
-    implements Built<QuoteListResponse, QuoteListResponseBuilder> {
-  factory QuoteListResponse([void updates(QuoteListResponseBuilder b)]) =
-      _$QuoteListResponse;
-
-  QuoteListResponse._();
-
-  @override
-  @memoized
-  int get hashCode;
-
-  BuiltList<InvoiceEntity> get data;
-
-  static Serializer<QuoteListResponse> get serializer =>
-      _$quoteListResponseSerializer;
-}
-
-abstract class QuoteItemResponse
-    implements Built<QuoteItemResponse, QuoteItemResponseBuilder> {
-  factory QuoteItemResponse([void updates(QuoteItemResponseBuilder b)]) =
-      _$QuoteItemResponse;
-
-  QuoteItemResponse._();
-
-  @override
-  @memoized
-  int get hashCode;
-
-  InvoiceEntity get data;
-
-  static Serializer<QuoteItemResponse> get serializer =>
-      _$quoteItemResponseSerializer;
-}
-
 class QuoteFields {
   static const String total = 'total';
   static const String amount = 'amount';

lib/data/models/quote_model.g.dart

@@ -1,282 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'quote_model.dart';
-
-// **************************************************************************
-// BuiltValueGenerator
-// **************************************************************************
-
-Serializer<QuoteListResponse> _$quoteListResponseSerializer =
-    new _$QuoteListResponseSerializer();
-Serializer<QuoteItemResponse> _$quoteItemResponseSerializer =
-    new _$QuoteItemResponseSerializer();
-
-class _$QuoteListResponseSerializer
-    implements StructuredSerializer<QuoteListResponse> {
-  @override
-  final Iterable<Type> types = const [QuoteListResponse, _$QuoteListResponse];
-  @override
-  final String wireName = 'QuoteListResponse';
-
-  @override
-  Iterable<Object> serialize(Serializers serializers, QuoteListResponse object,
-      {FullType specifiedType = FullType.unspecified}) {
-    final result = <Object>[
-      'data',
-      serializers.serialize(object.data,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(InvoiceEntity)])),
-    ];
-
-    return result;
-  }
-
-  @override
-  QuoteListResponse deserialize(
-      Serializers serializers, Iterable<Object> serialized,
-      {FullType specifiedType = FullType.unspecified}) {
-    final result = new QuoteListResponseBuilder();
-
-    final iterator = serialized.iterator;
-    while (iterator.moveNext()) {
-      final key = iterator.current as String;
-      iterator.moveNext();
-      final Object value = iterator.current;
-      switch (key) {
-        case 'data':
-          result.data.replace(serializers.deserialize(value,
-                  specifiedType: const FullType(
-                      BuiltList, const [const FullType(InvoiceEntity)]))
-              as BuiltList<Object>);
-          break;
-      }
-    }
-
-    return result.build();
-  }
-}
-
-class _$QuoteItemResponseSerializer
-    implements StructuredSerializer<QuoteItemResponse> {
-  @override
-  final Iterable<Type> types = const [QuoteItemResponse, _$QuoteItemResponse];
-  @override
-  final String wireName = 'QuoteItemResponse';
-
-  @override
-  Iterable<Object> serialize(Serializers serializers, QuoteItemResponse object,
-      {FullType specifiedType = FullType.unspecified}) {
-    final result = <Object>[
-      'data',
-      serializers.serialize(object.data,
-          specifiedType: const FullType(InvoiceEntity)),
-    ];
-
-    return result;
-  }
-
-  @override
-  QuoteItemResponse deserialize(
-      Serializers serializers, Iterable<Object> serialized,
-      {FullType specifiedType = FullType.unspecified}) {
-    final result = new QuoteItemResponseBuilder();
-
-    final iterator = serialized.iterator;
-    while (iterator.moveNext()) {
-      final key = iterator.current as String;
-      iterator.moveNext();
-      final Object value = iterator.current;
-      switch (key) {
-        case 'data':
-          result.data.replace(serializers.deserialize(value,
-              specifiedType: const FullType(InvoiceEntity)) as InvoiceEntity);
-          break;
-      }
-    }
-
-    return result.build();
-  }
-}
-
-class _$QuoteListResponse extends QuoteListResponse {
-  @override
-  final BuiltList<InvoiceEntity> data;
-
-  factory _$QuoteListResponse(
-          [void Function(QuoteListResponseBuilder) updates]) =>
-      (new QuoteListResponseBuilder()..update(updates)).build();
-
-  _$QuoteListResponse._({this.data}) : super._() {
-    BuiltValueNullFieldError.checkNotNull(data, 'QuoteListResponse', 'data');
-  }
-
-  @override
-  QuoteListResponse rebuild(void Function(QuoteListResponseBuilder) updates) =>
-      (toBuilder()..update(updates)).build();
-
-  @override
-  QuoteListResponseBuilder toBuilder() =>
-      new QuoteListResponseBuilder()..replace(this);
-
-  @override
-  bool operator ==(Object other) {
-    if (identical(other, this)) return true;
-    return other is QuoteListResponse && data == other.data;
-  }
-
-  int __hashCode;
-  @override
-  int get hashCode {
-    return __hashCode ??= $jf($jc(0, data.hashCode));
-  }
-
-  @override
-  String toString() {
-    return (newBuiltValueToStringHelper('QuoteListResponse')..add('data', data))
-        .toString();
-  }
-}
-
-class QuoteListResponseBuilder
-    implements Builder<QuoteListResponse, QuoteListResponseBuilder> {
-  _$QuoteListResponse _$v;
-
-  ListBuilder<InvoiceEntity> _data;
-  ListBuilder<InvoiceEntity> get data =>
-      _$this._data ??= new ListBuilder<InvoiceEntity>();
-  set data(ListBuilder<InvoiceEntity> data) => _$this._data = data;
-
-  QuoteListResponseBuilder();
-
-  QuoteListResponseBuilder get _$this {
-    final $v = _$v;
-    if ($v != null) {
-      _data = $v.data.toBuilder();
-      _$v = null;
-    }
-    return this;
-  }
-
-  @override
-  void replace(QuoteListResponse other) {
-    ArgumentError.checkNotNull(other, 'other');
-    _$v = other as _$QuoteListResponse;
-  }
-
-  @override
-  void update(void Function(QuoteListResponseBuilder) updates) {
-    if (updates != null) updates(this);
-  }
-
-  @override
-  _$QuoteListResponse build() {
-    _$QuoteListResponse _$result;
-    try {
-      _$result = _$v ?? new _$QuoteListResponse._(data: data.build());
-    } catch (_) {
-      String _$failedField;
-      try {
-        _$failedField = 'data';
-        data.build();
-      } catch (e) {
-        throw new BuiltValueNestedFieldError(
-            'QuoteListResponse', _$failedField, e.toString());
-      }
-      rethrow;
-    }
-    replace(_$result);
-    return _$result;
-  }
-}
-
-class _$QuoteItemResponse extends QuoteItemResponse {
-  @override
-  final InvoiceEntity data;
-
-  factory _$QuoteItemResponse(
-          [void Function(QuoteItemResponseBuilder) updates]) =>
-      (new QuoteItemResponseBuilder()..update(updates)).build();
-
-  _$QuoteItemResponse._({this.data}) : super._() {
-    BuiltValueNullFieldError.checkNotNull(data, 'QuoteItemResponse', 'data');
-  }
-
-  @override
-  QuoteItemResponse rebuild(void Function(QuoteItemResponseBuilder) updates) =>
-      (toBuilder()..update(updates)).build();
-
-  @override
-  QuoteItemResponseBuilder toBuilder() =>
-      new QuoteItemResponseBuilder()..replace(this);
-
-  @override
-  bool operator ==(Object other) {
-    if (identical(other, this)) return true;
-    return other is QuoteItemResponse && data == other.data;
-  }
-
-  int __hashCode;
-  @override
-  int get hashCode {
-    return __hashCode ??= $jf($jc(0, data.hashCode));
-  }
-
-  @override
-  String toString() {
-    return (newBuiltValueToStringHelper('QuoteItemResponse')..add('data', data))
-        .toString();
-  }
-}
-
-class QuoteItemResponseBuilder
-    implements Builder<QuoteItemResponse, QuoteItemResponseBuilder> {
-  _$QuoteItemResponse _$v;
-
-  InvoiceEntityBuilder _data;
-  InvoiceEntityBuilder get data => _$this._data ??= new InvoiceEntityBuilder();
-  set data(InvoiceEntityBuilder data) => _$this._data = data;
-
-  QuoteItemResponseBuilder();
-
-  QuoteItemResponseBuilder get _$this {
-    final $v = _$v;
-    if ($v != null) {
-      _data = $v.data.toBuilder();
-      _$v = null;
-    }
-    return this;
-  }
-
-  @override
-  void replace(QuoteItemResponse other) {
-    ArgumentError.checkNotNull(other, 'other');
-    _$v = other as _$QuoteItemResponse;
-  }
-
-  @override
-  void update(void Function(QuoteItemResponseBuilder) updates) {
-    if (updates != null) updates(this);
-  }
-
-  @override
-  _$QuoteItemResponse build() {
-    _$QuoteItemResponse _$result;
-    try {
-      _$result = _$v ?? new _$QuoteItemResponse._(data: data.build());
-    } catch (_) {
-      String _$failedField;
-      try {
-        _$failedField = 'data';
-        data.build();
-      } catch (e) {
-        throw new BuiltValueNestedFieldError(
-            'QuoteItemResponse', _$failedField, e.toString());
-      }
-      rethrow;
-    }
-    replace(_$result);
-    return _$result;
-  }
-}
-
-// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,deprecated_member_use_from_same_package,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

lib/data/models/serializers.dart

@@ -31,6 +31,7 @@ import 'package:invoiceninja_flutter/redux/payment/payment_state.dart';
 import 'package:invoiceninja_flutter/redux/payment_term/payment_term_state.dart';
 import 'package:invoiceninja_flutter/redux/product/product_state.dart';
 import 'package:invoiceninja_flutter/redux/project/project_state.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_state.dart';
 import 'package:invoiceninja_flutter/redux/quote/quote_state.dart';
 import 'package:invoiceninja_flutter/redux/recurring_expense/recurring_expense_state.dart';
 import 'package:invoiceninja_flutter/redux/recurring_invoice/recurring_invoice_state.dart';
@@ -113,6 +114,9 @@ part 'serializers.g.dart';
   TaxRateItemResponse,
   TaxRateListResponse,
   // STARTER: serializers - do not remove comment
+  InvoiceListResponse,
+  InvoiceItemResponse,
+
   SubscriptionEntity,
   SubscriptionListResponse,
   SubscriptionItemResponse,

lib/data/models/serializers.g.dart

@@ -138,6 +138,8 @@ Serializers _$serializers = (new Serializers().toBuilder()
       ..add(ProjectListResponse.serializer)
       ..add(ProjectState.serializer)
       ..add(ProjectUIState.serializer)
+      ..add(PurchaseOrderState.serializer)
+      ..add(PurchaseOrderUIState.serializer)
       ..add(QuoteState.serializer)
       ..add(QuoteUIState.serializer)
       ..add(RecurringExpenseState.serializer)
@@ -402,6 +404,9 @@ Serializers _$serializers = (new Serializers().toBuilder()
       ..addBuilderFactory(
           const FullType(BuiltList, const [const FullType(InvoiceEntity)]),
           () => new ListBuilder<InvoiceEntity>())
+      ..addBuilderFactory(
+          const FullType(BuiltList, const [const FullType(InvoiceEntity)]),
+          () => new ListBuilder<InvoiceEntity>())
       ..addBuilderFactory(
           const FullType(BuiltList, const [const FullType(TaskEntity)]),
           () => new ListBuilder<TaskEntity>())
@@ -752,6 +757,13 @@ Serializers _$serializers = (new Serializers().toBuilder()
       ..addBuilderFactory(
           const FullType(BuiltList, const [const FullType(String)]),
           () => new ListBuilder<String>())
+      ..addBuilderFactory(
+          const FullType(BuiltMap,
+              const [const FullType(String), const FullType(InvoiceEntity)]),
+          () => new MapBuilder<String, InvoiceEntity>())
+      ..addBuilderFactory(
+          const FullType(BuiltList, const [const FullType(String)]),
+          () => new ListBuilder<String>())
       ..addBuilderFactory(
           const FullType(BuiltMap,
               const [const FullType(String), const FullType(PaymentEntity)]),

lib/data/repositories/purchase_order_repository.dart

@@ -0,0 +1,75 @@
+import 'dart:convert';
+import 'dart:core';
+import 'package:built_collection/built_collection.dart';
+import 'package:invoiceninja_flutter/constants.dart';
+import 'package:invoiceninja_flutter/data/models/serializers.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/data/web_client.dart';
+
+class PurchaseOrderRepository {
+  const PurchaseOrderRepository({
+    this.webClient = const WebClient(),
+  });
+
+  final WebClient webClient;
+
+  Future<InvoiceEntity> loadItem(
+      Credentials credentials, String entityId) async {
+    final dynamic response = await webClient.get(
+        '${credentials.url}/purchase_orders/$entityId', credentials.token);
+
+    final InvoiceItemResponse purchaseOrderResponse =
+        serializers.deserializeWith(InvoiceItemResponse.serializer, response);
+
+    return purchaseOrderResponse.data;
+  }
+
+  Future<BuiltList<InvoiceEntity>> loadList(Credentials credentials) async {
+    final String url = credentials.url + '/purchase_orders?';
+    final dynamic response = await webClient.get(url, credentials.token);
+
+    final InvoiceListResponse purchaseOrderResponse =
+        serializers.deserializeWith(InvoiceListResponse.serializer, response);
+
+    return purchaseOrderResponse.data;
+  }
+
+  Future<List<InvoiceEntity>> bulkAction(
+      Credentials credentials, List<String> ids, EntityAction action) async {
+    if (ids.length > kMaxEntitiesPerBulkAction) {
+      ids = ids.sublist(0, kMaxEntitiesPerBulkAction);
+    }
+
+    final url = credentials.url + '/purchase_orders/bulk';
+    final dynamic response = await webClient.post(url, credentials.token,
+        data: json.encode({'ids': ids, 'action': action.toApiParam()}));
+
+    final InvoiceListResponse purchaseOrderResponse =
+        serializers.deserializeWith(InvoiceListResponse.serializer, response);
+
+    return purchaseOrderResponse.data.toList();
+  }
+
+  Future<InvoiceEntity> saveData(
+      Credentials credentials, InvoiceEntity purchaseOrder) async {
+    final data =
+        serializers.serializeWith(InvoiceEntity.serializer, purchaseOrder);
+    dynamic response;
+
+    if (purchaseOrder.isNew) {
+      response = await webClient.post(
+          credentials.url + '/purchase_orders', credentials.token,
+          data: json.encode(data));
+    } else {
+      final url = '${credentials.url}/purchase_orders/${purchaseOrder.id}';
+      response =
+          await webClient.put(url, credentials.token, data: json.encode(data));
+    }
+
+    final InvoiceItemResponse purchaseOrderResponse =
+        serializers.deserializeWith(InvoiceItemResponse.serializer, response);
+
+    return purchaseOrderResponse.data;
+  }
+}

lib/main.dart

@@ -57,6 +57,7 @@ import 'package:invoiceninja_flutter/utils/web_stub.dart'
     if (dart.library.html) 'package:invoiceninja_flutter/utils/web.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_middleware.dart';
 
 void main({bool isTesting = false}) async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -79,6 +80,7 @@ void main({bool isTesting = false}) async {
         ..addAll(createStoreSettingsMiddleware())
         ..addAll(createStoreReportsMiddleware())
         // STARTER: middleware - do not remove comment
+        ..addAll(createStorePurchaseOrdersMiddleware())
         ..addAll(createStoreRecurringExpensesMiddleware())
         ..addAll(createStoreSubscriptionsMiddleware())
         ..addAll(createStoreTaskStatusesMiddleware())

lib/main_app.dart

@@ -94,6 +94,10 @@ import 'package:invoiceninja_flutter/utils/localization.dart';
 import 'package:invoiceninja_flutter/utils/platforms.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_screen.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/edit/purchase_order_edit_vm.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/view/purchase_order_view_vm.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_screen_vm.dart';
 
 import 'package:invoiceninja_flutter/utils/web_stub.dart'
     if (dart.library.html) 'package:invoiceninja_flutter/utils/web.dart';
@@ -490,6 +494,13 @@ class InvoiceNinjaAppState extends State<InvoiceNinjaApp> {
                         QuoteEmailScreen.route: (context) => QuoteEmailScreen(),
                         QuotePdfScreen.route: (context) => QuotePdfScreen(),
                         // STARTER: routes - do not remove comment
+                        PurchaseOrderScreen.route: (context) =>
+                            PurchaseOrderScreenBuilder(),
+                        PurchaseOrderViewScreen.route: (context) =>
+                            PurchaseOrderViewScreen(),
+                        PurchaseOrderEditScreen.route: (context) =>
+                            PurchaseOrderEditScreen(),
+
                         RecurringExpenseScreen.route: (context) =>
                             RecurringExpenseScreenBuilder(),
                         RecurringExpenseViewScreen.route: (context) =>

lib/redux/app/app_actions.dart

@@ -64,6 +64,7 @@ import 'package:invoiceninja_flutter/utils/localization.dart';
 import 'package:invoiceninja_flutter/utils/platforms.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
 
 class PersistUI {}
 
@@ -380,6 +381,9 @@ void viewEntitiesByType({
             action = ViewGroupList();
             break;
           // STARTER: view list - do not remove comment
+          case EntityType.purchaseOrder:
+            action = ViewPurchaseOrderList();
+            break;
           case EntityType.recurringExpense:
             action = ViewRecurringExpenseList();
             break;
@@ -589,6 +593,13 @@ void viewEntityById({
             ));
             break;
           // STARTER: view - do not remove comment
+          case EntityType.purchaseOrder:
+            store.dispatch(ViewPurchaseOrder(
+              purchaseOrderId: entityId,
+              force: force,
+            ));
+            break;
+
           case EntityType.recurringExpense:
             store.dispatch(ViewRecurringExpense(
               recurringExpenseId: entityId,
@@ -814,6 +825,13 @@ void createEntityByType({
             ));
             break;
           // STARTER: create type - do not remove comment
+          case EntityType.purchaseOrder:
+            store.dispatch(EditPurchaseOrder(
+              force: force,
+              purchaseOrder: InvoiceEntity(state: state),
+            ));
+            break;
+
           case EntityType.recurringExpense:
             store.dispatch(EditRecurringExpense(
               force: force,
@@ -1018,6 +1036,14 @@ void createEntity({
             ));
             break;
           // STARTER: create - do not remove comment
+          case EntityType.purchaseOrder:
+            store.dispatch(EditPurchaseOrder(
+              purchaseOrder: entity,
+              force: force,
+              completer: completer,
+            ));
+            break;
+
           case EntityType.recurringExpense:
             store.dispatch(EditRecurringExpense(
               recurringExpense: entity,
@@ -1204,6 +1230,11 @@ void editEntity({
             ));
             break;
           // STARTER: edit - do not remove comment
+          case EntityType.purchaseOrder:
+            store.dispatch(
+                EditPurchaseOrder(purchaseOrder: entity, completer: completer));
+            break;
+
           case EntityType.recurringExpense:
             store.dispatch(EditRecurringExpense(
                 recurringExpense: entity, completer: completer));
@@ -1371,6 +1402,10 @@ void handleEntitiesActions(List<BaseEntity> entities, EntityAction action,
       handleDocumentAction(context, entities, action);
       break;
     // STARTER: actions - do not remove comment
+    case EntityType.purchaseOrder:
+      handlePurchaseOrderAction(context, entities, action);
+      break;
+
     case EntityType.recurringExpense:
       handleRecurringExpenseAction(context, entities, action);
       break;

lib/redux/app/app_reducer.dart

@@ -32,6 +32,7 @@ import 'package:invoiceninja_flutter/redux/vendor/vendor_actions.dart';
 import 'package:invoiceninja_flutter/redux/webhook/webhook_actions.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
 
 // We create the State reducer by combining many smaller reducers into one!
 AppState appReducer(AppState state, dynamic action) {
@@ -101,6 +102,10 @@ final lastErrorReducer = combineReducers<String>([
     return '${action.error}';
   }),
   // STARTER: errors - do not remove comment
+  TypedReducer<String, LoadPurchaseOrdersFailure>((state, action) {
+    return '${action.error}';
+  }),
+
   TypedReducer<String, LoadRecurringExpensesFailure>((state, action) {
     return '${action.error}';
   }),

lib/redux/app/app_state.dart

@@ -88,6 +88,9 @@ import 'package:invoiceninja_flutter/utils/formatting.dart';
 import 'package:invoiceninja_flutter/utils/platforms.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_state.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/edit/purchase_order_edit_vm.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_selectors.dart';
 
 part 'app_state.g.dart';
 
@@ -289,6 +292,9 @@ abstract class AppState implements Built<AppState, AppStateBuilder> {
       case EntityType.invoice:
         return invoiceState.map;
       // STARTER: states switch map - do not remove comment
+      case EntityType.purchaseOrder:
+        return purchaseOrderState.map;
+
       case EntityType.recurringExpense:
         return recurringExpenseState.map;
 
@@ -369,6 +375,9 @@ abstract class AppState implements Built<AppState, AppStateBuilder> {
       case EntityType.invoice:
         return invoiceState.list;
       // STARTER: states switch list - do not remove comment
+      case EntityType.purchaseOrder:
+        return purchaseOrderState.list;
+
       case EntityType.recurringExpense:
         return recurringExpenseState.list;
 
@@ -438,6 +447,9 @@ abstract class AppState implements Built<AppState, AppStateBuilder> {
       case EntityType.invoice:
         return invoiceUIState;
       // STARTER: states switch - do not remove comment
+      case EntityType.purchaseOrder:
+        return purchaseOrderUIState;
+
       case EntityType.recurringExpense:
         return recurringExpenseUIState;
       case EntityType.subscription:
@@ -508,6 +520,12 @@ abstract class AppState implements Built<AppState, AppStateBuilder> {
   ListUIState get invoiceListState => uiState.invoiceUIState.listUIState;
 
   // STARTER: state getters - do not remove comment
+  PurchaseOrderState get purchaseOrderState =>
+      userCompanyState.purchaseOrderState;
+  ListUIState get purchaseOrderListState =>
+      uiState.purchaseOrderUIState.listUIState;
+  PurchaseOrderUIState get purchaseOrderUIState => uiState.purchaseOrderUIState;
+
   RecurringExpenseState get recurringExpenseState =>
       userCompanyState.recurringExpenseState;
   ListUIState get recurringExpenseListState =>
@@ -678,6 +696,10 @@ abstract class AppState implements Built<AppState, AppStateBuilder> {
       case CreditEditScreen.route:
         return hasCreditChanges(creditUIState.editing, creditState.map);
       // STARTER: has changes - do not remove comment
+      case PurchaseOrderEditScreen.route:
+        return hasPurchaseOrderChanges(
+            purchaseOrderUIState.editing, purchaseOrderState.map);
+
       case RecurringExpenseEditScreen.route:
         return hasRecurringExpenseChanges(
             recurringExpenseUIState.editing, recurringExpenseState.map);

lib/redux/company/company_reducer.dart

@@ -35,6 +35,7 @@ import 'package:invoiceninja_flutter/redux/vendor/vendor_reducer.dart';
 import 'package:invoiceninja_flutter/redux/webhook/webhook_reducer.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_reducer.dart';
 
 UserCompanyState companyReducer(UserCompanyState state, dynamic action) {
   if (action is DeleteCompanySuccess) {
@@ -52,6 +53,8 @@ UserCompanyState companyReducer(UserCompanyState state, dynamic action) {
     ..vendorState.replace(vendorsReducer(state.vendorState, action))
     ..taskState.replace(tasksReducer(state.taskState, action))
     // STARTER: reducer - do not remove comment
+    ..purchaseOrderState
+        .replace(purchaseOrdersReducer(state.purchaseOrderState, action))
     ..recurringExpenseState
         .replace(recurringExpensesReducer(state.recurringExpenseState, action))
     ..subscriptionState

lib/redux/company/company_state.dart

@@ -32,6 +32,7 @@ import 'package:invoiceninja_flutter/redux/vendor/vendor_state.dart';
 import 'package:invoiceninja_flutter/redux/webhook/webhook_state.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_state.dart';
 
 part 'company_state.g.dart';
 
@@ -52,6 +53,8 @@ abstract class UserCompanyState
       paymentState: PaymentState(),
       quoteState: QuoteState(),
       // STARTER: constructor - do not remove comment
+      purchaseOrderState: PurchaseOrderState(),
+
       recurringExpenseState: RecurringExpenseState(),
       subscriptionState: SubscriptionState(),
       taskStatusState: TaskStatusState(),
@@ -101,6 +104,8 @@ abstract class UserCompanyState
   QuoteState get quoteState;
 
   // STARTER: fields - do not remove comment
+  PurchaseOrderState get purchaseOrderState;
+
   RecurringExpenseState get recurringExpenseState;
 
   SubscriptionState get subscriptionState;

lib/redux/company/company_state.g.dart

@@ -55,6 +55,9 @@ class _$UserCompanyStateSerializer
       'quoteState',
       serializers.serialize(object.quoteState,
           specifiedType: const FullType(QuoteState)),
+      'purchaseOrderState',
+      serializers.serialize(object.purchaseOrderState,
+          specifiedType: const FullType(PurchaseOrderState)),
       'recurringExpenseState',
       serializers.serialize(object.recurringExpenseState,
           specifiedType: const FullType(RecurringExpenseState)),
@@ -170,6 +173,11 @@ class _$UserCompanyStateSerializer
           result.quoteState.replace(serializers.deserialize(value,
               specifiedType: const FullType(QuoteState)) as QuoteState);
           break;
+        case 'purchaseOrderState':
+          result.purchaseOrderState.replace(serializers.deserialize(value,
+                  specifiedType: const FullType(PurchaseOrderState))
+              as PurchaseOrderState);
+          break;
         case 'recurringExpenseState':
           result.recurringExpenseState.replace(serializers.deserialize(value,
                   specifiedType: const FullType(RecurringExpenseState))
@@ -417,6 +425,8 @@ class _$UserCompanyState extends UserCompanyState {
   @override
   final QuoteState quoteState;
   @override
+  final PurchaseOrderState purchaseOrderState;
+  @override
   final RecurringExpenseState recurringExpenseState;
   @override
   final SubscriptionState subscriptionState;
@@ -462,6 +472,7 @@ class _$UserCompanyState extends UserCompanyState {
       this.projectState,
       this.paymentState,
       this.quoteState,
+      this.purchaseOrderState,
       this.recurringExpenseState,
       this.subscriptionState,
       this.taskStatusState,
@@ -499,6 +510,8 @@ class _$UserCompanyState extends UserCompanyState {
         paymentState, 'UserCompanyState', 'paymentState');
     BuiltValueNullFieldError.checkNotNull(
         quoteState, 'UserCompanyState', 'quoteState');
+    BuiltValueNullFieldError.checkNotNull(
+        purchaseOrderState, 'UserCompanyState', 'purchaseOrderState');
     BuiltValueNullFieldError.checkNotNull(
         recurringExpenseState, 'UserCompanyState', 'recurringExpenseState');
     BuiltValueNullFieldError.checkNotNull(
@@ -553,6 +566,7 @@ class _$UserCompanyState extends UserCompanyState {
         projectState == other.projectState &&
         paymentState == other.paymentState &&
         quoteState == other.quoteState &&
+        purchaseOrderState == other.purchaseOrderState &&
         recurringExpenseState == other.recurringExpenseState &&
         subscriptionState == other.subscriptionState &&
         taskStatusState == other.taskStatusState &&
@@ -590,12 +604,12 @@ class _$UserCompanyState extends UserCompanyState {
                                                                 $jc(
                                                                     $jc(
                                                                         $jc(
-                                                                            $jc($jc($jc($jc($jc($jc($jc($jc(0, lastUpdated.hashCode), userCompany.hashCode), documentState.hashCode), productState.hashCode), clientState.hashCode), invoiceState.hashCode), expenseState.hashCode),
+                                                                            $jc($jc($jc($jc($jc($jc($jc($jc($jc(0, lastUpdated.hashCode), userCompany.hashCode), documentState.hashCode), productState.hashCode), clientState.hashCode), invoiceState.hashCode), expenseState.hashCode), vendorState.hashCode),
-                                                                                vendorState.hashCode),
+                                                                                taskState.hashCode),
-                                                                            taskState.hashCode),
+                                                                            projectState.hashCode),
-                                                                        projectState.hashCode),
+                                                                        paymentState.hashCode),
-                                                                    paymentState.hashCode),
+                                                                    quoteState.hashCode),
-                                                                quoteState.hashCode),
+                                                                purchaseOrderState.hashCode),
                                                             recurringExpenseState.hashCode),
                                                         subscriptionState.hashCode),
                                                     taskStatusState.hashCode),
@@ -627,6 +641,7 @@ class _$UserCompanyState extends UserCompanyState {
           ..add('projectState', projectState)
           ..add('paymentState', paymentState)
           ..add('quoteState', quoteState)
+          ..add('purchaseOrderState', purchaseOrderState)
           ..add('recurringExpenseState', recurringExpenseState)
           ..add('subscriptionState', subscriptionState)
           ..add('taskStatusState', taskStatusState)
@@ -718,6 +733,12 @@ class UserCompanyStateBuilder
   set quoteState(QuoteStateBuilder quoteState) =>
       _$this._quoteState = quoteState;
 
+  PurchaseOrderStateBuilder _purchaseOrderState;
+  PurchaseOrderStateBuilder get purchaseOrderState =>
+      _$this._purchaseOrderState ??= new PurchaseOrderStateBuilder();
+  set purchaseOrderState(PurchaseOrderStateBuilder purchaseOrderState) =>
+      _$this._purchaseOrderState = purchaseOrderState;
+
   RecurringExpenseStateBuilder _recurringExpenseState;
   RecurringExpenseStateBuilder get recurringExpenseState =>
       _$this._recurringExpenseState ??= new RecurringExpenseStateBuilder();
@@ -820,6 +841,7 @@ class UserCompanyStateBuilder
       _projectState = $v.projectState.toBuilder();
       _paymentState = $v.paymentState.toBuilder();
       _quoteState = $v.quoteState.toBuilder();
+      _purchaseOrderState = $v.purchaseOrderState.toBuilder();
       _recurringExpenseState = $v.recurringExpenseState.toBuilder();
       _subscriptionState = $v.subscriptionState.toBuilder();
       _taskStatusState = $v.taskStatusState.toBuilder();
@@ -869,6 +891,7 @@ class UserCompanyStateBuilder
               projectState: projectState.build(),
               paymentState: paymentState.build(),
               quoteState: quoteState.build(),
+              purchaseOrderState: purchaseOrderState.build(),
               recurringExpenseState: recurringExpenseState.build(),
               subscriptionState: subscriptionState.build(),
               taskStatusState: taskStatusState.build(),
@@ -908,6 +931,8 @@ class UserCompanyStateBuilder
         paymentState.build();
         _$failedField = 'quoteState';
         quoteState.build();
+        _$failedField = 'purchaseOrderState';
+        purchaseOrderState.build();
         _$failedField = 'recurringExpenseState';
         recurringExpenseState.build();
         _$failedField = 'subscriptionState';

lib/redux/purchase_order/purchase_order_actions.dart

@@ -0,0 +1,323 @@
+import 'dart:async';
+import 'package:built_collection/built_collection.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/utils/completers.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
+import 'package:invoiceninja_flutter/ui/app/entities/entity_actions_dialog.dart';
+
+class ViewPurchaseOrderList implements PersistUI {
+  ViewPurchaseOrderList({this.force = false});
+
+  final bool force;
+}
+
+class ViewPurchaseOrder implements PersistUI, PersistPrefs {
+  ViewPurchaseOrder({
+    @required this.purchaseOrderId,
+    this.force = false,
+  });
+
+  final String purchaseOrderId;
+  final bool force;
+}
+
+class EditPurchaseOrder implements PersistUI, PersistPrefs {
+  EditPurchaseOrder(
+      {@required this.purchaseOrder,
+      this.completer,
+      this.cancelCompleter,
+      this.force = false});
+
+  final InvoiceEntity purchaseOrder;
+  final Completer completer;
+  final Completer cancelCompleter;
+  final bool force;
+}
+
+class UpdatePurchaseOrder implements PersistUI {
+  UpdatePurchaseOrder(this.purchaseOrder);
+
+  final InvoiceEntity purchaseOrder;
+}
+
+class LoadPurchaseOrder {
+  LoadPurchaseOrder({this.completer, this.purchaseOrderId});
+
+  final Completer completer;
+  final String purchaseOrderId;
+}
+
+class LoadPurchaseOrderActivity {
+  LoadPurchaseOrderActivity({this.completer, this.purchaseOrderId});
+
+  final Completer completer;
+  final String purchaseOrderId;
+}
+
+class LoadPurchaseOrders {
+  LoadPurchaseOrders({this.completer});
+
+  final Completer completer;
+}
+
+class LoadPurchaseOrderRequest implements StartLoading {}
+
+class LoadPurchaseOrderFailure implements StopLoading {
+  LoadPurchaseOrderFailure(this.error);
+
+  final dynamic error;
+
+  @override
+  String toString() {
+    return 'LoadPurchaseOrderFailure{error: $error}';
+  }
+}
+
+class LoadPurchaseOrderSuccess implements StopLoading, PersistData {
+  LoadPurchaseOrderSuccess(this.purchaseOrder);
+
+  final InvoiceEntity purchaseOrder;
+
+  @override
+  String toString() {
+    return 'LoadPurchaseOrderSuccess{purchaseOrder: $purchaseOrder}';
+  }
+}
+
+class LoadPurchaseOrdersRequest implements StartLoading {}
+
+class LoadPurchaseOrdersFailure implements StopLoading {
+  LoadPurchaseOrdersFailure(this.error);
+
+  final dynamic error;
+
+  @override
+  String toString() {
+    return 'LoadPurchaseOrdersFailure{error: $error}';
+  }
+}
+
+class LoadPurchaseOrdersSuccess implements StopLoading {
+  LoadPurchaseOrdersSuccess(this.purchaseOrders);
+
+  final BuiltList<InvoiceEntity> purchaseOrders;
+
+  @override
+  String toString() {
+    return 'LoadPurchaseOrdersSuccess{purchaseOrders: $purchaseOrders}';
+  }
+}
+
+class SavePurchaseOrderRequest implements StartSaving {
+  SavePurchaseOrderRequest({this.completer, this.purchaseOrder});
+
+  final Completer completer;
+  final InvoiceEntity purchaseOrder;
+}
+
+class SavePurchaseOrderSuccess implements StopSaving, PersistData, PersistUI {
+  SavePurchaseOrderSuccess(this.purchaseOrder);
+
+  final InvoiceEntity purchaseOrder;
+}
+
+class AddPurchaseOrderSuccess implements StopSaving, PersistData, PersistUI {
+  AddPurchaseOrderSuccess(this.purchaseOrder);
+
+  final InvoiceEntity purchaseOrder;
+}
+
+class SavePurchaseOrderFailure implements StopSaving {
+  SavePurchaseOrderFailure(this.error);
+
+  final Object error;
+}
+
+class ArchivePurchaseOrdersRequest implements StartSaving {
+  ArchivePurchaseOrdersRequest(this.completer, this.purchaseOrderIds);
+
+  final Completer completer;
+  final List<String> purchaseOrderIds;
+}
+
+class ArchivePurchaseOrdersSuccess implements StopSaving, PersistData {
+  ArchivePurchaseOrdersSuccess(this.purchaseOrders);
+
+  final List<InvoiceEntity> purchaseOrders;
+}
+
+class ArchivePurchaseOrdersFailure implements StopSaving {
+  ArchivePurchaseOrdersFailure(this.purchaseOrders);
+
+  final List<InvoiceEntity> purchaseOrders;
+}
+
+class DeletePurchaseOrdersRequest implements StartSaving {
+  DeletePurchaseOrdersRequest(this.completer, this.purchaseOrderIds);
+
+  final Completer completer;
+  final List<String> purchaseOrderIds;
+}
+
+class DeletePurchaseOrdersSuccess implements StopSaving, PersistData {
+  DeletePurchaseOrdersSuccess(this.purchaseOrders);
+
+  final List<InvoiceEntity> purchaseOrders;
+}
+
+class DeletePurchaseOrdersFailure implements StopSaving {
+  DeletePurchaseOrdersFailure(this.purchaseOrders);
+
+  final List<InvoiceEntity> purchaseOrders;
+}
+
+class RestorePurchaseOrdersRequest implements StartSaving {
+  RestorePurchaseOrdersRequest(this.completer, this.purchaseOrderIds);
+
+  final Completer completer;
+  final List<String> purchaseOrderIds;
+}
+
+class RestorePurchaseOrdersSuccess implements StopSaving, PersistData {
+  RestorePurchaseOrdersSuccess(this.purchaseOrders);
+
+  final List<InvoiceEntity> purchaseOrders;
+}
+
+class RestorePurchaseOrdersFailure implements StopSaving {
+  RestorePurchaseOrdersFailure(this.purchaseOrders);
+
+  final List<InvoiceEntity> purchaseOrders;
+}
+
+class FilterPurchaseOrders implements PersistUI {
+  FilterPurchaseOrders(this.filter);
+
+  final String filter;
+}
+
+class SortPurchaseOrders implements PersistUI, PersistPrefs {
+  SortPurchaseOrders(this.field);
+
+  final String field;
+}
+
+class FilterPurchaseOrdersByState implements PersistUI {
+  FilterPurchaseOrdersByState(this.state);
+
+  final EntityState state;
+}
+
+class FilterPurchaseOrdersByCustom1 implements PersistUI {
+  FilterPurchaseOrdersByCustom1(this.value);
+
+  final String value;
+}
+
+class FilterPurchaseOrdersByCustom2 implements PersistUI {
+  FilterPurchaseOrdersByCustom2(this.value);
+
+  final String value;
+}
+
+class FilterPurchaseOrdersByCustom3 implements PersistUI {
+  FilterPurchaseOrdersByCustom3(this.value);
+
+  final String value;
+}
+
+class FilterPurchaseOrdersByCustom4 implements PersistUI {
+  FilterPurchaseOrdersByCustom4(this.value);
+
+  final String value;
+}
+
+class StartPurchaseOrderMultiselect {
+  StartPurchaseOrderMultiselect();
+}
+
+class AddToPurchaseOrderMultiselect {
+  AddToPurchaseOrderMultiselect({@required this.entity});
+
+  final BaseEntity entity;
+}
+
+class RemoveFromPurchaseOrderMultiselect {
+  RemoveFromPurchaseOrderMultiselect({@required this.entity});
+
+  final BaseEntity entity;
+}
+
+class ClearPurchaseOrderMultiselect {
+  ClearPurchaseOrderMultiselect();
+}
+
+class UpdatePurchaseOrderTab implements PersistUI {
+  UpdatePurchaseOrderTab({this.tabIndex});
+
+  final int tabIndex;
+}
+
+void handlePurchaseOrderAction(BuildContext context,
+    List<BaseEntity> purchaseOrders, EntityAction action) {
+  if (purchaseOrders.isEmpty) {
+    return;
+  }
+
+  final store = StoreProvider.of<AppState>(context);
+  final localization = AppLocalization.of(context);
+  final purchaseOrder = purchaseOrders.first as InvoiceEntity;
+  final purchaseOrderIds =
+      purchaseOrders.map((purchaseOrder) => purchaseOrder.id).toList();
+
+  switch (action) {
+    case EntityAction.edit:
+      editEntity(entity: purchaseOrder);
+      break;
+    case EntityAction.restore:
+      store.dispatch(RestorePurchaseOrdersRequest(
+          snackBarCompleter<Null>(context, localization.restoredPurchaseOrder),
+          purchaseOrderIds));
+      break;
+    case EntityAction.archive:
+      store.dispatch(ArchivePurchaseOrdersRequest(
+          snackBarCompleter<Null>(context, localization.archivedPurchaseOrder),
+          purchaseOrderIds));
+      break;
+    case EntityAction.delete:
+      store.dispatch(DeletePurchaseOrdersRequest(
+          snackBarCompleter<Null>(context, localization.deletedPurchaseOrder),
+          purchaseOrderIds));
+      break;
+    case EntityAction.toggleMultiselect:
+      if (!store.state.purchaseOrderListState.isInMultiselect()) {
+        store.dispatch(StartPurchaseOrderMultiselect());
+      }
+
+      if (purchaseOrders.isEmpty) {
+        break;
+      }
+
+      for (final purchaseOrder in purchaseOrders) {
+        if (!store.state.purchaseOrderListState.isSelected(purchaseOrder.id)) {
+          store.dispatch(AddToPurchaseOrderMultiselect(entity: purchaseOrder));
+        } else {
+          store.dispatch(
+              RemoveFromPurchaseOrderMultiselect(entity: purchaseOrder));
+        }
+      }
+      break;
+    case EntityAction.more:
+      showEntityActionsDialog(
+        entities: [purchaseOrder],
+      );
+      break;
+    default:
+      print('## ERROR: unhandled action $action in purchase_order_actions');
+      break;
+  }
+}

lib/redux/purchase_order/purchase_order_middleware.dart

@@ -0,0 +1,245 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:redux/redux.dart';
+import 'package:invoiceninja_flutter/main_app.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/ui/ui_actions.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_screen.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/edit/purchase_order_edit_vm.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/view/purchase_order_view_vm.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/data/repositories/purchase_order_repository.dart';
+
+List<Middleware<AppState>> createStorePurchaseOrdersMiddleware([
+  PurchaseOrderRepository repository = const PurchaseOrderRepository(),
+]) {
+  final viewPurchaseOrderList = _viewPurchaseOrderList();
+  final viewPurchaseOrder = _viewPurchaseOrder();
+  final editPurchaseOrder = _editPurchaseOrder();
+  final loadPurchaseOrders = _loadPurchaseOrders(repository);
+  final loadPurchaseOrder = _loadPurchaseOrder(repository);
+  final savePurchaseOrder = _savePurchaseOrder(repository);
+  final archivePurchaseOrder = _archivePurchaseOrder(repository);
+  final deletePurchaseOrder = _deletePurchaseOrder(repository);
+  final restorePurchaseOrder = _restorePurchaseOrder(repository);
+
+  return [
+    TypedMiddleware<AppState, ViewPurchaseOrderList>(viewPurchaseOrderList),
+    TypedMiddleware<AppState, ViewPurchaseOrder>(viewPurchaseOrder),
+    TypedMiddleware<AppState, EditPurchaseOrder>(editPurchaseOrder),
+    TypedMiddleware<AppState, LoadPurchaseOrders>(loadPurchaseOrders),
+    TypedMiddleware<AppState, LoadPurchaseOrder>(loadPurchaseOrder),
+    TypedMiddleware<AppState, SavePurchaseOrderRequest>(savePurchaseOrder),
+    TypedMiddleware<AppState, ArchivePurchaseOrdersRequest>(
+        archivePurchaseOrder),
+    TypedMiddleware<AppState, DeletePurchaseOrdersRequest>(deletePurchaseOrder),
+    TypedMiddleware<AppState, RestorePurchaseOrdersRequest>(
+        restorePurchaseOrder),
+  ];
+}
+
+Middleware<AppState> _editPurchaseOrder() {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as EditPurchaseOrder;
+
+    next(action);
+
+    store.dispatch(UpdateCurrentRoute(PurchaseOrderEditScreen.route));
+
+    if (store.state.prefState.isMobile) {
+      navigatorKey.currentState.pushNamed(PurchaseOrderEditScreen.route);
+    }
+  };
+}
+
+Middleware<AppState> _viewPurchaseOrder() {
+  return (Store<AppState> store, dynamic dynamicAction,
+      NextDispatcher next) async {
+    final action = dynamicAction as ViewPurchaseOrder;
+
+    next(action);
+
+    store.dispatch(UpdateCurrentRoute(PurchaseOrderViewScreen.route));
+
+    if (store.state.prefState.isMobile) {
+      navigatorKey.currentState.pushNamed(PurchaseOrderViewScreen.route);
+    }
+  };
+}
+
+Middleware<AppState> _viewPurchaseOrderList() {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as ViewPurchaseOrderList;
+
+    next(action);
+
+    if (store.state.staticState.isStale) {
+      store.dispatch(RefreshData());
+    }
+
+    store.dispatch(UpdateCurrentRoute(PurchaseOrderScreen.route));
+
+    if (store.state.prefState.isMobile) {
+      navigatorKey.currentState.pushNamedAndRemoveUntil(
+          PurchaseOrderScreen.route, (Route<dynamic> route) => false);
+    }
+  };
+}
+
+Middleware<AppState> _archivePurchaseOrder(PurchaseOrderRepository repository) {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as ArchivePurchaseOrdersRequest;
+    final prevPurchaseOrders = action.purchaseOrderIds
+        .map((id) => store.state.purchaseOrderState.map[id])
+        .toList();
+    repository
+        .bulkAction(store.state.credentials, action.purchaseOrderIds,
+            EntityAction.archive)
+        .then((List<InvoiceEntity> purchaseOrders) {
+      store.dispatch(ArchivePurchaseOrdersSuccess(purchaseOrders));
+      if (action.completer != null) {
+        action.completer.complete(null);
+      }
+    }).catchError((Object error) {
+      print(error);
+      store.dispatch(ArchivePurchaseOrdersFailure(prevPurchaseOrders));
+      if (action.completer != null) {
+        action.completer.completeError(error);
+      }
+    });
+
+    next(action);
+  };
+}
+
+Middleware<AppState> _deletePurchaseOrder(PurchaseOrderRepository repository) {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as DeletePurchaseOrdersRequest;
+    final prevPurchaseOrders = action.purchaseOrderIds
+        .map((id) => store.state.purchaseOrderState.map[id])
+        .toList();
+    repository
+        .bulkAction(store.state.credentials, action.purchaseOrderIds,
+            EntityAction.delete)
+        .then((List<InvoiceEntity> purchaseOrders) {
+      store.dispatch(DeletePurchaseOrdersSuccess(purchaseOrders));
+      if (action.completer != null) {
+        action.completer.complete(null);
+      }
+    }).catchError((Object error) {
+      print(error);
+      store.dispatch(DeletePurchaseOrdersFailure(prevPurchaseOrders));
+      if (action.completer != null) {
+        action.completer.completeError(error);
+      }
+    });
+
+    next(action);
+  };
+}
+
+Middleware<AppState> _restorePurchaseOrder(PurchaseOrderRepository repository) {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as RestorePurchaseOrdersRequest;
+    final prevPurchaseOrders = action.purchaseOrderIds
+        .map((id) => store.state.purchaseOrderState.map[id])
+        .toList();
+    repository
+        .bulkAction(store.state.credentials, action.purchaseOrderIds,
+            EntityAction.restore)
+        .then((List<InvoiceEntity> purchaseOrders) {
+      store.dispatch(RestorePurchaseOrdersSuccess(purchaseOrders));
+      if (action.completer != null) {
+        action.completer.complete(null);
+      }
+    }).catchError((Object error) {
+      print(error);
+      store.dispatch(RestorePurchaseOrdersFailure(prevPurchaseOrders));
+      if (action.completer != null) {
+        action.completer.completeError(error);
+      }
+    });
+
+    next(action);
+  };
+}
+
+Middleware<AppState> _savePurchaseOrder(PurchaseOrderRepository repository) {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as SavePurchaseOrderRequest;
+    repository
+        .saveData(store.state.credentials, action.purchaseOrder)
+        .then((InvoiceEntity purchaseOrder) {
+      if (action.purchaseOrder.isNew) {
+        store.dispatch(AddPurchaseOrderSuccess(purchaseOrder));
+      } else {
+        store.dispatch(SavePurchaseOrderSuccess(purchaseOrder));
+      }
+
+      action.completer.complete(purchaseOrder);
+    }).catchError((Object error) {
+      print(error);
+      store.dispatch(SavePurchaseOrderFailure(error));
+      action.completer.completeError(error);
+    });
+
+    next(action);
+  };
+}
+
+Middleware<AppState> _loadPurchaseOrder(PurchaseOrderRepository repository) {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as LoadPurchaseOrder;
+    final AppState state = store.state;
+
+    store.dispatch(LoadPurchaseOrderRequest());
+    repository
+        .loadItem(state.credentials, action.purchaseOrderId)
+        .then((purchaseOrder) {
+      store.dispatch(LoadPurchaseOrderSuccess(purchaseOrder));
+
+      if (action.completer != null) {
+        action.completer.complete(null);
+      }
+    }).catchError((Object error) {
+      print(error);
+      store.dispatch(LoadPurchaseOrderFailure(error));
+      if (action.completer != null) {
+        action.completer.completeError(error);
+      }
+    });
+
+    next(action);
+  };
+}
+
+Middleware<AppState> _loadPurchaseOrders(PurchaseOrderRepository repository) {
+  return (Store<AppState> store, dynamic dynamicAction, NextDispatcher next) {
+    final action = dynamicAction as LoadPurchaseOrders;
+    final AppState state = store.state;
+
+    store.dispatch(LoadPurchaseOrdersRequest());
+    repository.loadList(state.credentials).then((data) {
+      store.dispatch(LoadPurchaseOrdersSuccess(data));
+
+      if (action.completer != null) {
+        action.completer.complete(null);
+      }
+      /*
+      if (state.productState.isStale) {
+        store.dispatch(LoadProducts());
+      }
+      */
+    }).catchError((Object error) {
+      print(error);
+      store.dispatch(LoadPurchaseOrdersFailure(error));
+      if (action.completer != null) {
+        action.completer.completeError(error);
+      }
+    });
+
+    next(action);
+  };
+}

lib/redux/purchase_order/purchase_order_reducer.dart

@@ -0,0 +1,280 @@
+import 'package:redux/redux.dart';
+import 'package:built_collection/built_collection.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/company/company_actions.dart';
+import 'package:invoiceninja_flutter/redux/ui/entity_ui_state.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+import 'package:invoiceninja_flutter/redux/ui/list_ui_state.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_state.dart';
+
+EntityUIState purchaseOrderUIReducer(
+    PurchaseOrderUIState state, dynamic action) {
+  return state.rebuild((b) => b
+    ..listUIState.replace(purchaseOrderListReducer(state.listUIState, action))
+    ..editing.replace(editingReducer(state.editing, action))
+    ..selectedId = selectedIdReducer(state.selectedId, action)
+    ..forceSelected = forceSelectedReducer(state.forceSelected, action)
+    ..tabIndex = tabIndexReducer(state.tabIndex, action));
+}
+
+final forceSelectedReducer = combineReducers<bool>([
+  TypedReducer<bool, ViewPurchaseOrder>((completer, action) => true),
+  TypedReducer<bool, ViewPurchaseOrderList>((completer, action) => false),
+  TypedReducer<bool, FilterPurchaseOrdersByState>((completer, action) => false),
+  TypedReducer<bool, FilterPurchaseOrders>((completer, action) => false),
+  TypedReducer<bool, FilterPurchaseOrdersByCustom1>(
+      (completer, action) => false),
+  TypedReducer<bool, FilterPurchaseOrdersByCustom2>(
+      (completer, action) => false),
+  TypedReducer<bool, FilterPurchaseOrdersByCustom3>(
+      (completer, action) => false),
+  TypedReducer<bool, FilterPurchaseOrdersByCustom4>(
+      (completer, action) => false),
+]);
+
+final tabIndexReducer = combineReducers<int>([
+  TypedReducer<int, UpdatePurchaseOrderTab>((completer, action) {
+    return action.tabIndex;
+  }),
+  TypedReducer<int, PreviewEntity>((completer, action) {
+    return 0;
+  }),
+]);
+
+Reducer<String> selectedIdReducer = combineReducers([
+  TypedReducer<String, ArchivePurchaseOrdersSuccess>((completer, action) => ''),
+  TypedReducer<String, DeletePurchaseOrdersSuccess>((completer, action) => ''),
+  TypedReducer<String, PreviewEntity>((selectedId, action) =>
+      action.entityType == EntityType.purchaseOrder
+          ? action.entityId
+          : selectedId),
+  TypedReducer<String, ViewPurchaseOrder>(
+      (String selectedId, dynamic action) => action.purchaseOrderId),
+  TypedReducer<String, AddPurchaseOrderSuccess>(
+      (String selectedId, dynamic action) => action.purchaseOrder.id),
+  TypedReducer<String, SelectCompany>(
+      (selectedId, action) => action.clearSelection ? '' : selectedId),
+  TypedReducer<String, ClearEntityFilter>((selectedId, action) => ''),
+  TypedReducer<String, SortPurchaseOrders>((selectedId, action) => ''),
+  TypedReducer<String, FilterPurchaseOrders>((selectedId, action) => ''),
+  TypedReducer<String, FilterPurchaseOrdersByState>((selectedId, action) => ''),
+  TypedReducer<String, FilterPurchaseOrdersByCustom1>(
+      (selectedId, action) => ''),
+  TypedReducer<String, FilterPurchaseOrdersByCustom2>(
+      (selectedId, action) => ''),
+  TypedReducer<String, FilterPurchaseOrdersByCustom3>(
+      (selectedId, action) => ''),
+  TypedReducer<String, FilterPurchaseOrdersByCustom4>(
+      (selectedId, action) => ''),
+  TypedReducer<String, FilterByEntity>(
+      (selectedId, action) => action.clearSelection
+          ? ''
+          : action.entityType == EntityType.purchaseOrder
+              ? action.entityId
+              : selectedId),
+]);
+
+final editingReducer = combineReducers<InvoiceEntity>([
+  TypedReducer<InvoiceEntity, SavePurchaseOrderSuccess>(_updateEditing),
+  TypedReducer<InvoiceEntity, AddPurchaseOrderSuccess>(_updateEditing),
+  TypedReducer<InvoiceEntity, RestorePurchaseOrdersSuccess>(
+      (purchaseOrders, action) {
+    return action.purchaseOrders[0];
+  }),
+  TypedReducer<InvoiceEntity, ArchivePurchaseOrdersSuccess>(
+      (purchaseOrders, action) {
+    return action.purchaseOrders[0];
+  }),
+  TypedReducer<InvoiceEntity, DeletePurchaseOrdersSuccess>(
+      (purchaseOrders, action) {
+    return action.purchaseOrders[0];
+  }),
+  TypedReducer<InvoiceEntity, EditPurchaseOrder>(_updateEditing),
+  TypedReducer<InvoiceEntity, UpdatePurchaseOrder>((purchaseOrder, action) {
+    return action.purchaseOrder.rebuild((b) => b..isChanged = true);
+  }),
+  TypedReducer<InvoiceEntity, DiscardChanges>(_clearEditing),
+]);
+
+InvoiceEntity _clearEditing(InvoiceEntity purchaseOrder, dynamic action) {
+  return InvoiceEntity();
+}
+
+InvoiceEntity _updateEditing(InvoiceEntity purchaseOrder, dynamic action) {
+  return action.purchaseOrder;
+}
+
+final purchaseOrderListReducer = combineReducers<ListUIState>([
+  TypedReducer<ListUIState, SortPurchaseOrders>(_sortPurchaseOrders),
+  TypedReducer<ListUIState, FilterPurchaseOrdersByState>(
+      _filterPurchaseOrdersByState),
+  TypedReducer<ListUIState, FilterPurchaseOrders>(_filterPurchaseOrders),
+  TypedReducer<ListUIState, FilterPurchaseOrdersByCustom1>(
+      _filterPurchaseOrdersByCustom1),
+  TypedReducer<ListUIState, FilterPurchaseOrdersByCustom2>(
+      _filterPurchaseOrdersByCustom2),
+  TypedReducer<ListUIState, StartPurchaseOrderMultiselect>(
+      _startListMultiselect),
+  TypedReducer<ListUIState, AddToPurchaseOrderMultiselect>(
+      _addToListMultiselect),
+  TypedReducer<ListUIState, RemoveFromPurchaseOrderMultiselect>(
+      _removeFromListMultiselect),
+  TypedReducer<ListUIState, ClearPurchaseOrderMultiselect>(
+      _clearListMultiselect),
+  TypedReducer<ListUIState, ViewPurchaseOrderList>(_viewPurchaseOrderList),
+]);
+
+ListUIState _viewPurchaseOrderList(
+    ListUIState purchaseOrderListState, ViewPurchaseOrderList action) {
+  return purchaseOrderListState.rebuild((b) => b
+    ..selectedIds = null
+    ..filter = null
+    ..filterClearedAt = DateTime.now().millisecondsSinceEpoch);
+}
+
+ListUIState _filterPurchaseOrdersByCustom1(
+    ListUIState purchaseOrderListState, FilterPurchaseOrdersByCustom1 action) {
+  if (purchaseOrderListState.custom1Filters.contains(action.value)) {
+    return purchaseOrderListState
+        .rebuild((b) => b..custom1Filters.remove(action.value));
+  } else {
+    return purchaseOrderListState
+        .rebuild((b) => b..custom1Filters.add(action.value));
+  }
+}
+
+ListUIState _filterPurchaseOrdersByCustom2(
+    ListUIState purchaseOrderListState, FilterPurchaseOrdersByCustom2 action) {
+  if (purchaseOrderListState.custom2Filters.contains(action.value)) {
+    return purchaseOrderListState
+        .rebuild((b) => b..custom2Filters.remove(action.value));
+  } else {
+    return purchaseOrderListState
+        .rebuild((b) => b..custom2Filters.add(action.value));
+  }
+}
+
+ListUIState _filterPurchaseOrdersByState(
+    ListUIState purchaseOrderListState, FilterPurchaseOrdersByState action) {
+  if (purchaseOrderListState.stateFilters.contains(action.state)) {
+    return purchaseOrderListState
+        .rebuild((b) => b..stateFilters.remove(action.state));
+  } else {
+    return purchaseOrderListState
+        .rebuild((b) => b..stateFilters.add(action.state));
+  }
+}
+
+ListUIState _filterPurchaseOrders(
+    ListUIState purchaseOrderListState, FilterPurchaseOrders action) {
+  return purchaseOrderListState.rebuild((b) => b
+    ..filter = action.filter
+    ..filterClearedAt = action.filter == null
+        ? DateTime.now().millisecondsSinceEpoch
+        : purchaseOrderListState.filterClearedAt);
+}
+
+ListUIState _sortPurchaseOrders(
+    ListUIState purchaseOrderListState, SortPurchaseOrders action) {
+  return purchaseOrderListState.rebuild((b) => b
+    ..sortAscending = b.sortField != action.field || !b.sortAscending
+    ..sortField = action.field);
+}
+
+ListUIState _startListMultiselect(
+    ListUIState productListState, StartPurchaseOrderMultiselect action) {
+  return productListState.rebuild((b) => b..selectedIds = ListBuilder());
+}
+
+ListUIState _addToListMultiselect(
+    ListUIState productListState, AddToPurchaseOrderMultiselect action) {
+  return productListState.rebuild((b) => b..selectedIds.add(action.entity.id));
+}
+
+ListUIState _removeFromListMultiselect(
+    ListUIState productListState, RemoveFromPurchaseOrderMultiselect action) {
+  return productListState
+      .rebuild((b) => b..selectedIds.remove(action.entity.id));
+}
+
+ListUIState _clearListMultiselect(
+    ListUIState productListState, ClearPurchaseOrderMultiselect action) {
+  return productListState.rebuild((b) => b..selectedIds = null);
+}
+
+final purchaseOrdersReducer = combineReducers<PurchaseOrderState>([
+  TypedReducer<PurchaseOrderState, SavePurchaseOrderSuccess>(
+      _updatePurchaseOrder),
+  TypedReducer<PurchaseOrderState, AddPurchaseOrderSuccess>(_addPurchaseOrder),
+  TypedReducer<PurchaseOrderState, LoadPurchaseOrdersSuccess>(
+      _setLoadedPurchaseOrders),
+  TypedReducer<PurchaseOrderState, LoadPurchaseOrderSuccess>(
+      _setLoadedPurchaseOrder),
+  TypedReducer<PurchaseOrderState, LoadCompanySuccess>(_setLoadedCompany),
+  TypedReducer<PurchaseOrderState, ArchivePurchaseOrdersSuccess>(
+      _archivePurchaseOrderSuccess),
+  TypedReducer<PurchaseOrderState, DeletePurchaseOrdersSuccess>(
+      _deletePurchaseOrderSuccess),
+  TypedReducer<PurchaseOrderState, RestorePurchaseOrdersSuccess>(
+      _restorePurchaseOrderSuccess),
+]);
+
+PurchaseOrderState _archivePurchaseOrderSuccess(
+    PurchaseOrderState purchaseOrderState,
+    ArchivePurchaseOrdersSuccess action) {
+  return purchaseOrderState.rebuild((b) {
+    for (final purchaseOrder in action.purchaseOrders) {
+      b.map[purchaseOrder.id] = purchaseOrder;
+    }
+  });
+}
+
+PurchaseOrderState _deletePurchaseOrderSuccess(
+    PurchaseOrderState purchaseOrderState, DeletePurchaseOrdersSuccess action) {
+  return purchaseOrderState.rebuild((b) {
+    for (final purchaseOrder in action.purchaseOrders) {
+      b.map[purchaseOrder.id] = purchaseOrder;
+    }
+  });
+}
+
+PurchaseOrderState _restorePurchaseOrderSuccess(
+    PurchaseOrderState purchaseOrderState,
+    RestorePurchaseOrdersSuccess action) {
+  return purchaseOrderState.rebuild((b) {
+    for (final purchaseOrder in action.purchaseOrders) {
+      b.map[purchaseOrder.id] = purchaseOrder;
+    }
+  });
+}
+
+PurchaseOrderState _addPurchaseOrder(
+    PurchaseOrderState purchaseOrderState, AddPurchaseOrderSuccess action) {
+  return purchaseOrderState.rebuild((b) => b
+    ..map[action.purchaseOrder.id] = action.purchaseOrder
+    ..list.add(action.purchaseOrder.id));
+}
+
+PurchaseOrderState _updatePurchaseOrder(
+    PurchaseOrderState purchaseOrderState, SavePurchaseOrderSuccess action) {
+  return purchaseOrderState
+      .rebuild((b) => b..map[action.purchaseOrder.id] = action.purchaseOrder);
+}
+
+PurchaseOrderState _setLoadedPurchaseOrder(
+    PurchaseOrderState purchaseOrderState, LoadPurchaseOrderSuccess action) {
+  return purchaseOrderState
+      .rebuild((b) => b..map[action.purchaseOrder.id] = action.purchaseOrder);
+}
+
+PurchaseOrderState _setLoadedPurchaseOrders(
+        PurchaseOrderState purchaseOrderState,
+        LoadPurchaseOrdersSuccess action) =>
+    purchaseOrderState.loadPurchaseOrders(action.purchaseOrders);
+
+PurchaseOrderState _setLoadedCompany(
+    PurchaseOrderState purchaseOrderState, LoadCompanySuccess action) {
+  final company = action.userCompany.company;
+  return purchaseOrderState.loadPurchaseOrders(company.purchaseOrders);
+}

lib/redux/purchase_order/purchase_order_selectors.dart

@@ -0,0 +1,155 @@
+import 'package:invoiceninja_flutter/data/models/purchase_order_model.dart';
+import 'package:invoiceninja_flutter/redux/static/static_state.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:memoize/memoize.dart';
+import 'package:built_collection/built_collection.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/ui/list_ui_state.dart';
+
+var memoizedDropdownPurchaseOrderList = memo6(
+    (BuiltMap<String, InvoiceEntity> purchaseOrderMap,
+            BuiltList<String> purchaseOrderList,
+            StaticState staticState,
+            BuiltMap<String, UserEntity> userMap,
+            BuiltMap<String, ClientEntity> clientMap,
+            String clientId) =>
+        dropdownPurchaseOrdersSelector(purchaseOrderMap, purchaseOrderList,
+            staticState, userMap, clientMap, clientId));
+
+List<String> dropdownPurchaseOrdersSelector(
+    BuiltMap<String, InvoiceEntity> purchaseOrderMap,
+    BuiltList<String> purchaseOrderList,
+    StaticState staticState,
+    BuiltMap<String, UserEntity> userMap,
+    BuiltMap<String, ClientEntity> clientMap,
+    String clientId) {
+  final list = purchaseOrderList.where((purchaseOrderId) {
+    final purchaseOrder = purchaseOrderMap[purchaseOrderId];
+    /*
+    if (clientId != null && clientId > 0 && purchaseOrder.clientId != clientId) {
+      return false;
+    }
+    */
+    return purchaseOrder.isActive;
+  }).toList();
+
+  list.sort((purchaseOrderAId, purchaseOrderBId) {
+    final purchaseOrderA = purchaseOrderMap[purchaseOrderAId];
+    final purchaseOrderB = purchaseOrderMap[purchaseOrderBId];
+    return purchaseOrderA.compareTo(
+      invoice: purchaseOrderB,
+      sortAscending: false,
+      sortField: PurchaseOrderFields.number,
+      userMap: userMap,
+      clientMap: clientMap,
+    );
+  });
+
+  return list;
+}
+
+var memoizedFilteredPurchaseOrderList = memo6((
+  SelectionState selectionState,
+  BuiltMap<String, InvoiceEntity> invoiceMap,
+  BuiltList<String> invoiceList,
+  BuiltMap<String, ClientEntity> clientMap,
+  ListUIState invoiceListState,
+  BuiltMap<String, UserEntity> userMap,
+) =>
+    filteredPurchaseOrdersSelector(selectionState, invoiceMap, invoiceList,
+        clientMap, invoiceListState, userMap));
+
+List<String> filteredPurchaseOrdersSelector(
+  SelectionState selectionState,
+  BuiltMap<String, InvoiceEntity> invoiceMap,
+  BuiltList<String> invoiceList,
+  BuiltMap<String, ClientEntity> clientMap,
+  ListUIState invoiceListState,
+  BuiltMap<String, UserEntity> userMap,
+) {
+  final filterEntityId = selectionState.filterEntityId;
+  final filterEntityType = selectionState.filterEntityType;
+
+  final list = invoiceList.where((invoiceId) {
+    final invoice = invoiceMap[invoiceId];
+    final client =
+        clientMap[invoice.clientId] ?? ClientEntity(id: invoice.clientId);
+
+    if (invoice.id == selectionState.selectedId) {
+      return true;
+    }
+
+    if (!client.isActive &&
+        !client.matchesEntityFilter(filterEntityType, filterEntityId)) {
+      return false;
+    }
+
+    if (filterEntityType == EntityType.client && client.id != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.user &&
+        invoice.assignedUserId != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.recurringInvoice &&
+        invoice.recurringId != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.subscription &&
+        invoice.subscriptionId != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.design &&
+        invoice.designId != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.group &&
+        client.groupId != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.project &&
+        invoice.projectId != filterEntityId) {
+      return false;
+    } else if (filterEntityType == EntityType.quote &&
+        invoice.invoiceId != filterEntityId) {
+      return false;
+    }
+
+    if (!invoice.matchesStates(invoiceListState.stateFilters)) {
+      return false;
+    }
+    if (!invoice.matchesStatuses(invoiceListState.statusFilters)) {
+      return false;
+    }
+    if (!invoice.matchesFilter(invoiceListState.filter) &&
+        !client.matchesNameOrEmail(invoiceListState.filter)) {
+      return false;
+    }
+    if (invoiceListState.custom1Filters.isNotEmpty &&
+        !invoiceListState.custom1Filters.contains(invoice.customValue1)) {
+      return false;
+    } else if (invoiceListState.custom2Filters.isNotEmpty &&
+        !invoiceListState.custom2Filters.contains(invoice.customValue2)) {
+      return false;
+    } else if (invoiceListState.custom3Filters.isNotEmpty &&
+        !invoiceListState.custom3Filters.contains(invoice.customValue3)) {
+      return false;
+    } else if (invoiceListState.custom4Filters.isNotEmpty &&
+        !invoiceListState.custom4Filters.contains(invoice.customValue4)) {
+      return false;
+    }
+    return true;
+  }).toList();
+
+  list.sort((invoiceAId, invoiceBId) {
+    return invoiceMap[invoiceAId].compareTo(
+      invoice: invoiceMap[invoiceBId],
+      sortField: invoiceListState.sortField,
+      sortAscending: invoiceListState.sortAscending,
+      clientMap: clientMap,
+      userMap: userMap,
+    );
+  });
+
+  return list;
+}
+
+bool hasPurchaseOrderChanges(InvoiceEntity purchaseOrder,
+        BuiltMap<String, InvoiceEntity> purchaseOrderMap) =>
+    purchaseOrder.isNew
+        ? purchaseOrder.isChanged
+        : purchaseOrder != purchaseOrderMap[purchaseOrder.id];

lib/redux/purchase_order/purchase_order_state.dart

@@ -0,0 +1,83 @@
+import 'dart:async';
+import 'package:built_value/built_value.dart';
+import 'package:built_value/serializer.dart';
+import 'package:built_collection/built_collection.dart';
+import 'package:invoiceninja_flutter/data/models/purchase_order_model.dart';
+import 'package:invoiceninja_flutter/redux/ui/entity_ui_state.dart';
+import 'package:invoiceninja_flutter/redux/ui/list_ui_state.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/ui/pref_state.dart';
+
+part 'purchase_order_state.g.dart';
+
+abstract class PurchaseOrderState
+    implements Built<PurchaseOrderState, PurchaseOrderStateBuilder> {
+  factory PurchaseOrderState() {
+    return _$PurchaseOrderState._(
+      map: BuiltMap<String, InvoiceEntity>(),
+      list: BuiltList<String>(),
+    );
+  }
+  PurchaseOrderState._();
+
+  @override
+  @memoized
+  int get hashCode;
+
+  BuiltMap<String, InvoiceEntity> get map;
+  BuiltList<String> get list;
+
+  InvoiceEntity get(String purchaseOrderId) {
+    if (map.containsKey(purchaseOrderId)) {
+      return map[purchaseOrderId];
+    } else {
+      return InvoiceEntity(id: purchaseOrderId);
+    }
+  }
+
+  PurchaseOrderState loadPurchaseOrders(BuiltList<InvoiceEntity> clients) {
+    final map = Map<String, InvoiceEntity>.fromIterable(
+      clients,
+      key: (dynamic item) => item.id,
+      value: (dynamic item) => item,
+    );
+
+    return rebuild((b) => b
+      ..map.addAll(map)
+      ..list.replace((map.keys.toList() + list.toList()).toSet().toList()));
+  }
+
+  static Serializer<PurchaseOrderState> get serializer =>
+      _$purchaseOrderStateSerializer;
+}
+
+abstract class PurchaseOrderUIState extends Object
+    with EntityUIState
+    implements Built<PurchaseOrderUIState, PurchaseOrderUIStateBuilder> {
+  factory PurchaseOrderUIState(PrefStateSortField sortField) {
+    return _$PurchaseOrderUIState._(
+      listUIState: ListUIState(sortField?.field ?? PurchaseOrderFields.number,
+          sortAscending: sortField?.ascending),
+      editing: InvoiceEntity(),
+      selectedId: '',
+      tabIndex: 0,
+    );
+  }
+  PurchaseOrderUIState._();
+
+  @override
+  @memoized
+  int get hashCode;
+
+  @nullable
+  InvoiceEntity get editing;
+
+  @override
+  bool get isCreatingNew => editing.isNew;
+
+  @override
+  String get editingId => editing.id;
+
+  static Serializer<PurchaseOrderUIState> get serializer =>
+      _$purchaseOrderUIStateSerializer;
+}

lib/redux/purchase_order/purchase_order_state.g.dart

@@ -0,0 +1,447 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'purchase_order_state.dart';
+
+// **************************************************************************
+// BuiltValueGenerator
+// **************************************************************************
+
+Serializer<PurchaseOrderState> _$purchaseOrderStateSerializer =
+    new _$PurchaseOrderStateSerializer();
+Serializer<PurchaseOrderUIState> _$purchaseOrderUIStateSerializer =
+    new _$PurchaseOrderUIStateSerializer();
+
+class _$PurchaseOrderStateSerializer
+    implements StructuredSerializer<PurchaseOrderState> {
+  @override
+  final Iterable<Type> types = const [PurchaseOrderState, _$PurchaseOrderState];
+  @override
+  final String wireName = 'PurchaseOrderState';
+
+  @override
+  Iterable<Object> serialize(Serializers serializers, PurchaseOrderState object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'map',
+      serializers.serialize(object.map,
+          specifiedType: const FullType(BuiltMap,
+              const [const FullType(String), const FullType(InvoiceEntity)])),
+      'list',
+      serializers.serialize(object.list,
+          specifiedType:
+              const FullType(BuiltList, const [const FullType(String)])),
+    ];
+
+    return result;
+  }
+
+  @override
+  PurchaseOrderState deserialize(
+      Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new PurchaseOrderStateBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final Object value = iterator.current;
+      switch (key) {
+        case 'map':
+          result.map.replace(serializers.deserialize(value,
+              specifiedType: const FullType(BuiltMap, const [
+                const FullType(String),
+                const FullType(InvoiceEntity)
+              ])));
+          break;
+        case 'list':
+          result.list.replace(serializers.deserialize(value,
+                  specifiedType:
+                      const FullType(BuiltList, const [const FullType(String)]))
+              as BuiltList<Object>);
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$PurchaseOrderUIStateSerializer
+    implements StructuredSerializer<PurchaseOrderUIState> {
+  @override
+  final Iterable<Type> types = const [
+    PurchaseOrderUIState,
+    _$PurchaseOrderUIState
+  ];
+  @override
+  final String wireName = 'PurchaseOrderUIState';
+
+  @override
+  Iterable<Object> serialize(
+      Serializers serializers, PurchaseOrderUIState object,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = <Object>[
+      'listUIState',
+      serializers.serialize(object.listUIState,
+          specifiedType: const FullType(ListUIState)),
+      'tabIndex',
+      serializers.serialize(object.tabIndex,
+          specifiedType: const FullType(int)),
+    ];
+    Object value;
+    value = object.editing;
+    if (value != null) {
+      result
+        ..add('editing')
+        ..add(serializers.serialize(value,
+            specifiedType: const FullType(InvoiceEntity)));
+    }
+    value = object.selectedId;
+    if (value != null) {
+      result
+        ..add('selectedId')
+        ..add(serializers.serialize(value,
+            specifiedType: const FullType(String)));
+    }
+    value = object.forceSelected;
+    if (value != null) {
+      result
+        ..add('forceSelected')
+        ..add(
+            serializers.serialize(value, specifiedType: const FullType(bool)));
+    }
+    return result;
+  }
+
+  @override
+  PurchaseOrderUIState deserialize(
+      Serializers serializers, Iterable<Object> serialized,
+      {FullType specifiedType = FullType.unspecified}) {
+    final result = new PurchaseOrderUIStateBuilder();
+
+    final iterator = serialized.iterator;
+    while (iterator.moveNext()) {
+      final key = iterator.current as String;
+      iterator.moveNext();
+      final Object value = iterator.current;
+      switch (key) {
+        case 'editing':
+          result.editing.replace(serializers.deserialize(value,
+              specifiedType: const FullType(InvoiceEntity)) as InvoiceEntity);
+          break;
+        case 'listUIState':
+          result.listUIState.replace(serializers.deserialize(value,
+              specifiedType: const FullType(ListUIState)) as ListUIState);
+          break;
+        case 'selectedId':
+          result.selectedId = serializers.deserialize(value,
+              specifiedType: const FullType(String)) as String;
+          break;
+        case 'forceSelected':
+          result.forceSelected = serializers.deserialize(value,
+              specifiedType: const FullType(bool)) as bool;
+          break;
+        case 'tabIndex':
+          result.tabIndex = serializers.deserialize(value,
+              specifiedType: const FullType(int)) as int;
+          break;
+      }
+    }
+
+    return result.build();
+  }
+}
+
+class _$PurchaseOrderState extends PurchaseOrderState {
+  @override
+  final BuiltMap<String, InvoiceEntity> map;
+  @override
+  final BuiltList<String> list;
+
+  factory _$PurchaseOrderState(
+          [void Function(PurchaseOrderStateBuilder) updates]) =>
+      (new PurchaseOrderStateBuilder()..update(updates)).build();
+
+  _$PurchaseOrderState._({this.map, this.list}) : super._() {
+    BuiltValueNullFieldError.checkNotNull(map, 'PurchaseOrderState', 'map');
+    BuiltValueNullFieldError.checkNotNull(list, 'PurchaseOrderState', 'list');
+  }
+
+  @override
+  PurchaseOrderState rebuild(
+          void Function(PurchaseOrderStateBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  PurchaseOrderStateBuilder toBuilder() =>
+      new PurchaseOrderStateBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is PurchaseOrderState &&
+        map == other.map &&
+        list == other.list;
+  }
+
+  int __hashCode;
+  @override
+  int get hashCode {
+    return __hashCode ??= $jf($jc($jc(0, map.hashCode), list.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('PurchaseOrderState')
+          ..add('map', map)
+          ..add('list', list))
+        .toString();
+  }
+}
+
+class PurchaseOrderStateBuilder
+    implements Builder<PurchaseOrderState, PurchaseOrderStateBuilder> {
+  _$PurchaseOrderState _$v;
+
+  MapBuilder<String, InvoiceEntity> _map;
+  MapBuilder<String, InvoiceEntity> get map =>
+      _$this._map ??= new MapBuilder<String, InvoiceEntity>();
+  set map(MapBuilder<String, InvoiceEntity> map) => _$this._map = map;
+
+  ListBuilder<String> _list;
+  ListBuilder<String> get list => _$this._list ??= new ListBuilder<String>();
+  set list(ListBuilder<String> list) => _$this._list = list;
+
+  PurchaseOrderStateBuilder();
+
+  PurchaseOrderStateBuilder get _$this {
+    final $v = _$v;
+    if ($v != null) {
+      _map = $v.map.toBuilder();
+      _list = $v.list.toBuilder();
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(PurchaseOrderState other) {
+    ArgumentError.checkNotNull(other, 'other');
+    _$v = other as _$PurchaseOrderState;
+  }
+
+  @override
+  void update(void Function(PurchaseOrderStateBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$PurchaseOrderState build() {
+    _$PurchaseOrderState _$result;
+    try {
+      _$result = _$v ??
+          new _$PurchaseOrderState._(map: map.build(), list: list.build());
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'map';
+        map.build();
+        _$failedField = 'list';
+        list.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'PurchaseOrderState', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+class _$PurchaseOrderUIState extends PurchaseOrderUIState {
+  @override
+  final InvoiceEntity editing;
+  @override
+  final ListUIState listUIState;
+  @override
+  final String selectedId;
+  @override
+  final bool forceSelected;
+  @override
+  final int tabIndex;
+  @override
+  final Completer<SelectableEntity> saveCompleter;
+  @override
+  final Completer<Null> cancelCompleter;
+
+  factory _$PurchaseOrderUIState(
+          [void Function(PurchaseOrderUIStateBuilder) updates]) =>
+      (new PurchaseOrderUIStateBuilder()..update(updates)).build();
+
+  _$PurchaseOrderUIState._(
+      {this.editing,
+      this.listUIState,
+      this.selectedId,
+      this.forceSelected,
+      this.tabIndex,
+      this.saveCompleter,
+      this.cancelCompleter})
+      : super._() {
+    BuiltValueNullFieldError.checkNotNull(
+        listUIState, 'PurchaseOrderUIState', 'listUIState');
+    BuiltValueNullFieldError.checkNotNull(
+        tabIndex, 'PurchaseOrderUIState', 'tabIndex');
+  }
+
+  @override
+  PurchaseOrderUIState rebuild(
+          void Function(PurchaseOrderUIStateBuilder) updates) =>
+      (toBuilder()..update(updates)).build();
+
+  @override
+  PurchaseOrderUIStateBuilder toBuilder() =>
+      new PurchaseOrderUIStateBuilder()..replace(this);
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(other, this)) return true;
+    return other is PurchaseOrderUIState &&
+        editing == other.editing &&
+        listUIState == other.listUIState &&
+        selectedId == other.selectedId &&
+        forceSelected == other.forceSelected &&
+        tabIndex == other.tabIndex &&
+        saveCompleter == other.saveCompleter &&
+        cancelCompleter == other.cancelCompleter;
+  }
+
+  int __hashCode;
+  @override
+  int get hashCode {
+    return __hashCode ??= $jf($jc(
+        $jc(
+            $jc(
+                $jc(
+                    $jc($jc($jc(0, editing.hashCode), listUIState.hashCode),
+                        selectedId.hashCode),
+                    forceSelected.hashCode),
+                tabIndex.hashCode),
+            saveCompleter.hashCode),
+        cancelCompleter.hashCode));
+  }
+
+  @override
+  String toString() {
+    return (newBuiltValueToStringHelper('PurchaseOrderUIState')
+          ..add('editing', editing)
+          ..add('listUIState', listUIState)
+          ..add('selectedId', selectedId)
+          ..add('forceSelected', forceSelected)
+          ..add('tabIndex', tabIndex)
+          ..add('saveCompleter', saveCompleter)
+          ..add('cancelCompleter', cancelCompleter))
+        .toString();
+  }
+}
+
+class PurchaseOrderUIStateBuilder
+    implements Builder<PurchaseOrderUIState, PurchaseOrderUIStateBuilder> {
+  _$PurchaseOrderUIState _$v;
+
+  InvoiceEntityBuilder _editing;
+  InvoiceEntityBuilder get editing =>
+      _$this._editing ??= new InvoiceEntityBuilder();
+  set editing(InvoiceEntityBuilder editing) => _$this._editing = editing;
+
+  ListUIStateBuilder _listUIState;
+  ListUIStateBuilder get listUIState =>
+      _$this._listUIState ??= new ListUIStateBuilder();
+  set listUIState(ListUIStateBuilder listUIState) =>
+      _$this._listUIState = listUIState;
+
+  String _selectedId;
+  String get selectedId => _$this._selectedId;
+  set selectedId(String selectedId) => _$this._selectedId = selectedId;
+
+  bool _forceSelected;
+  bool get forceSelected => _$this._forceSelected;
+  set forceSelected(bool forceSelected) =>
+      _$this._forceSelected = forceSelected;
+
+  int _tabIndex;
+  int get tabIndex => _$this._tabIndex;
+  set tabIndex(int tabIndex) => _$this._tabIndex = tabIndex;
+
+  Completer<SelectableEntity> _saveCompleter;
+  Completer<SelectableEntity> get saveCompleter => _$this._saveCompleter;
+  set saveCompleter(Completer<SelectableEntity> saveCompleter) =>
+      _$this._saveCompleter = saveCompleter;
+
+  Completer<Null> _cancelCompleter;
+  Completer<Null> get cancelCompleter => _$this._cancelCompleter;
+  set cancelCompleter(Completer<Null> cancelCompleter) =>
+      _$this._cancelCompleter = cancelCompleter;
+
+  PurchaseOrderUIStateBuilder();
+
+  PurchaseOrderUIStateBuilder get _$this {
+    final $v = _$v;
+    if ($v != null) {
+      _editing = $v.editing?.toBuilder();
+      _listUIState = $v.listUIState.toBuilder();
+      _selectedId = $v.selectedId;
+      _forceSelected = $v.forceSelected;
+      _tabIndex = $v.tabIndex;
+      _saveCompleter = $v.saveCompleter;
+      _cancelCompleter = $v.cancelCompleter;
+      _$v = null;
+    }
+    return this;
+  }
+
+  @override
+  void replace(PurchaseOrderUIState other) {
+    ArgumentError.checkNotNull(other, 'other');
+    _$v = other as _$PurchaseOrderUIState;
+  }
+
+  @override
+  void update(void Function(PurchaseOrderUIStateBuilder) updates) {
+    if (updates != null) updates(this);
+  }
+
+  @override
+  _$PurchaseOrderUIState build() {
+    _$PurchaseOrderUIState _$result;
+    try {
+      _$result = _$v ??
+          new _$PurchaseOrderUIState._(
+              editing: _editing?.build(),
+              listUIState: listUIState.build(),
+              selectedId: selectedId,
+              forceSelected: forceSelected,
+              tabIndex: BuiltValueNullFieldError.checkNotNull(
+                  tabIndex, 'PurchaseOrderUIState', 'tabIndex'),
+              saveCompleter: saveCompleter,
+              cancelCompleter: cancelCompleter);
+    } catch (_) {
+      String _$failedField;
+      try {
+        _$failedField = 'editing';
+        _editing?.build();
+        _$failedField = 'listUIState';
+        listUIState.build();
+      } catch (e) {
+        throw new BuiltValueNestedFieldError(
+            'PurchaseOrderUIState', _$failedField, e.toString());
+      }
+      rethrow;
+    }
+    replace(_$result);
+    return _$result;
+  }
+}
+
+// ignore_for_file: always_put_control_body_on_new_line,always_specify_types,annotate_overrides,avoid_annotating_with_dynamic,avoid_as,avoid_catches_without_on_clauses,avoid_returning_this,deprecated_member_use_from_same_package,lines_longer_than_80_chars,omit_local_variable_types,prefer_expression_function_bodies,sort_constructors_first,test_types_in_equals,unnecessary_const,unnecessary_new

lib/redux/ui/pref_reducer.dart

@@ -40,6 +40,7 @@ import 'package:invoiceninja_flutter/redux/vendor/vendor_actions.dart';
 import 'package:invoiceninja_flutter/redux/webhook/webhook_actions.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
 
 PrefState prefReducer(
     PrefState state, dynamic action, String selectedCompanyId) {
@@ -529,6 +530,19 @@ Reducer<BuiltList<HistoryRecord>> historyReducer = combineReducers([
       _addToHistory(historyList,
           HistoryRecord(id: action.group.id, entityType: EntityType.group))),
   // STARTER: history - do not remove comment
+  TypedReducer<BuiltList<HistoryRecord>, ViewPurchaseOrder>(
+      (historyList, action) => _addToHistory(
+          historyList,
+          HistoryRecord(
+              id: action.purchaseOrderId,
+              entityType: EntityType.purchaseOrder))),
+  TypedReducer<BuiltList<HistoryRecord>, EditPurchaseOrder>(
+      (historyList, action) => _addToHistory(
+          historyList,
+          HistoryRecord(
+              id: action.purchaseOrder.id,
+              entityType: EntityType.purchaseOrder))),
+
   TypedReducer<BuiltList<HistoryRecord>, ViewRecurringExpense>(
       (historyList, action) => _addToHistory(
           historyList,

lib/redux/ui/ui_reducer.dart

@@ -50,6 +50,7 @@ import 'package:invoiceninja_flutter/redux/vendor/vendor_reducer.dart';
 import 'package:invoiceninja_flutter/redux/webhook/webhook_reducer.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_reducer.dart';
 
 UIState uiReducer(UIState state, dynamic action) {
   final currentRoute = currentRouteReducer(state.currentRoute, action);
@@ -76,6 +77,8 @@ UIState uiReducer(UIState state, dynamic action) {
         .replace(dashboardUIReducer(state.dashboardUIState, action))
     ..reportsUIState.replace(reportsUIReducer(state.reportsUIState, action))
     // STARTER: reducer - do not remove comment
+    ..purchaseOrderUIState
+        .replace(purchaseOrderUIReducer(state.purchaseOrderUIState, action))
     ..recurringExpenseUIState.replace(
         recurringExpenseUIReducer(state.recurringExpenseUIState, action))
     ..subscriptionUIState

lib/redux/ui/ui_state.dart

@@ -38,6 +38,7 @@ import 'package:invoiceninja_flutter/ui/auth/login_vm.dart';
 import 'package:invoiceninja_flutter/utils/strings.dart';
 
 // STARTER: import - do not remove comment
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_state.dart';
 
 part 'ui_state.g.dart';
 
@@ -86,6 +87,9 @@ abstract class UIState implements Built<UIState, UIStateBuilder> {
       paymentUIState: PaymentUIState(sortFields[EntityType.payment]),
       quoteUIState: QuoteUIState(sortFields[EntityType.quote]),
       // STARTER: constructor - do not remove comment
+      purchaseOrderUIState:
+          PurchaseOrderUIState(sortFields[EntityType.purchaseOrder]),
+
       recurringExpenseUIState:
           RecurringExpenseUIState(sortFields[EntityType.recurringExpense]),
     );
@@ -133,6 +137,8 @@ abstract class UIState implements Built<UIState, UIStateBuilder> {
   InvoiceUIState get invoiceUIState;
 
   // STARTER: properties - do not remove comment
+  PurchaseOrderUIState get purchaseOrderUIState;
+
   RecurringExpenseUIState get recurringExpenseUIState;
 
   SubscriptionUIState get subscriptionUIState;

lib/redux/ui/ui_state.g.dart

@@ -53,6 +53,9 @@ class _$UIStateSerializer implements StructuredSerializer<UIState> {
       'invoiceUIState',
       serializers.serialize(object.invoiceUIState,
           specifiedType: const FullType(InvoiceUIState)),
+      'purchaseOrderUIState',
+      serializers.serialize(object.purchaseOrderUIState,
+          specifiedType: const FullType(PurchaseOrderUIState)),
       'recurringExpenseUIState',
       serializers.serialize(object.recurringExpenseUIState,
           specifiedType: const FullType(RecurringExpenseUIState)),
@@ -209,6 +212,11 @@ class _$UIStateSerializer implements StructuredSerializer<UIState> {
           result.invoiceUIState.replace(serializers.deserialize(value,
               specifiedType: const FullType(InvoiceUIState)) as InvoiceUIState);
           break;
+        case 'purchaseOrderUIState':
+          result.purchaseOrderUIState.replace(serializers.deserialize(value,
+                  specifiedType: const FullType(PurchaseOrderUIState))
+              as PurchaseOrderUIState);
+          break;
         case 'recurringExpenseUIState':
           result.recurringExpenseUIState.replace(serializers.deserialize(value,
                   specifiedType: const FullType(RecurringExpenseUIState))
@@ -345,6 +353,8 @@ class _$UIState extends UIState {
   @override
   final InvoiceUIState invoiceUIState;
   @override
+  final PurchaseOrderUIState purchaseOrderUIState;
+  @override
   final RecurringExpenseUIState recurringExpenseUIState;
   @override
   final SubscriptionUIState subscriptionUIState;
@@ -408,6 +418,7 @@ class _$UIState extends UIState {
       this.productUIState,
       this.clientUIState,
       this.invoiceUIState,
+      this.purchaseOrderUIState,
       this.recurringExpenseUIState,
       this.subscriptionUIState,
       this.taskStatusUIState,
@@ -454,6 +465,8 @@ class _$UIState extends UIState {
         clientUIState, 'UIState', 'clientUIState');
     BuiltValueNullFieldError.checkNotNull(
         invoiceUIState, 'UIState', 'invoiceUIState');
+    BuiltValueNullFieldError.checkNotNull(
+        purchaseOrderUIState, 'UIState', 'purchaseOrderUIState');
     BuiltValueNullFieldError.checkNotNull(
         recurringExpenseUIState, 'UIState', 'recurringExpenseUIState');
     BuiltValueNullFieldError.checkNotNull(
@@ -526,6 +539,7 @@ class _$UIState extends UIState {
         productUIState == other.productUIState &&
         clientUIState == other.clientUIState &&
         invoiceUIState == other.invoiceUIState &&
+        purchaseOrderUIState == other.purchaseOrderUIState &&
         recurringExpenseUIState == other.recurringExpenseUIState &&
         subscriptionUIState == other.subscriptionUIState &&
         taskStatusUIState == other.taskStatusUIState &&
@@ -572,7 +586,7 @@ class _$UIState extends UIState {
                                                                 $jc(
                                                                     $jc(
                                                                         $jc(
-                                                                            $jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc(0, selectedCompanyIndex.hashCode), currentRoute.hashCode), previousRoute.hashCode), loadingEntityType.hashCode), previewStack.hashCode), filterStack.hashCode), filter.hashCode), filterClearedAt.hashCode), lastActivityAt.hashCode), dashboardUIState.hashCode), productUIState.hashCode), clientUIState.hashCode), invoiceUIState.hashCode), recurringExpenseUIState.hashCode), subscriptionUIState.hashCode), taskStatusUIState.hashCode), expenseCategoryUIState.hashCode),
+                                                                            $jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc($jc(0, selectedCompanyIndex.hashCode), currentRoute.hashCode), previousRoute.hashCode), loadingEntityType.hashCode), previewStack.hashCode), filterStack.hashCode), filter.hashCode), filterClearedAt.hashCode), lastActivityAt.hashCode), dashboardUIState.hashCode), productUIState.hashCode), clientUIState.hashCode), invoiceUIState.hashCode), purchaseOrderUIState.hashCode), recurringExpenseUIState.hashCode), subscriptionUIState.hashCode), taskStatusUIState.hashCode), expenseCategoryUIState.hashCode),
                                                                                 recurringInvoiceUIState.hashCode),
                                                                             webhookUIState.hashCode),
                                                                         tokenUIState.hashCode),
@@ -610,6 +624,7 @@ class _$UIState extends UIState {
           ..add('productUIState', productUIState)
           ..add('clientUIState', clientUIState)
           ..add('invoiceUIState', invoiceUIState)
+          ..add('purchaseOrderUIState', purchaseOrderUIState)
           ..add('recurringExpenseUIState', recurringExpenseUIState)
           ..add('subscriptionUIState', subscriptionUIState)
           ..add('taskStatusUIState', taskStatusUIState)
@@ -709,6 +724,12 @@ class UIStateBuilder implements Builder<UIState, UIStateBuilder> {
   set invoiceUIState(InvoiceUIStateBuilder invoiceUIState) =>
       _$this._invoiceUIState = invoiceUIState;
 
+  PurchaseOrderUIStateBuilder _purchaseOrderUIState;
+  PurchaseOrderUIStateBuilder get purchaseOrderUIState =>
+      _$this._purchaseOrderUIState ??= new PurchaseOrderUIStateBuilder();
+  set purchaseOrderUIState(PurchaseOrderUIStateBuilder purchaseOrderUIState) =>
+      _$this._purchaseOrderUIState = purchaseOrderUIState;
+
   RecurringExpenseUIStateBuilder _recurringExpenseUIState;
   RecurringExpenseUIStateBuilder get recurringExpenseUIState =>
       _$this._recurringExpenseUIState ??= new RecurringExpenseUIStateBuilder();
@@ -871,6 +892,7 @@ class UIStateBuilder implements Builder<UIState, UIStateBuilder> {
       _productUIState = $v.productUIState.toBuilder();
       _clientUIState = $v.clientUIState.toBuilder();
       _invoiceUIState = $v.invoiceUIState.toBuilder();
+      _purchaseOrderUIState = $v.purchaseOrderUIState.toBuilder();
       _recurringExpenseUIState = $v.recurringExpenseUIState.toBuilder();
       _subscriptionUIState = $v.subscriptionUIState.toBuilder();
       _taskStatusUIState = $v.taskStatusUIState.toBuilder();
@@ -934,6 +956,7 @@ class UIStateBuilder implements Builder<UIState, UIStateBuilder> {
               productUIState: productUIState.build(),
               clientUIState: clientUIState.build(),
               invoiceUIState: invoiceUIState.build(),
+              purchaseOrderUIState: purchaseOrderUIState.build(),
               recurringExpenseUIState: recurringExpenseUIState.build(),
               subscriptionUIState: subscriptionUIState.build(),
               taskStatusUIState: taskStatusUIState.build(),
@@ -973,6 +996,8 @@ class UIStateBuilder implements Builder<UIState, UIStateBuilder> {
         clientUIState.build();
         _$failedField = 'invoiceUIState';
         invoiceUIState.build();
+        _$failedField = 'purchaseOrderUIState';
+        purchaseOrderUIState.build();
         _$failedField = 'recurringExpenseUIState';
         recurringExpenseUIState.build();
         _$failedField = 'subscriptionUIState';

lib/ui/app/app_shortcuts.dart

@@ -125,4 +125,4 @@ enum _ShortcutIntentType {
   list,
 }
 
-*/
+*/

lib/ui/app/menu_drawer.dart

@@ -513,6 +513,13 @@ class MenuDrawer extends StatelessWidget {
                               iconTooltip: localization.newExpense,
                             ),
                             // STARTER: menu - do not remove comment
+                            DrawerTile(
+                              company: company,
+                              entityType: EntityType.purchaseOrder,
+                              icon: getEntityIcon(EntityType.purchaseOrder),
+                              title: localization.purchaseOrders,
+                            ),
+
                             DrawerTile(
                               company: company,
                               entityType: EntityType.recurringExpense,

lib/ui/purchase_order/edit/purchase_order_edit.dart

@@ -0,0 +1,95 @@
+import 'package:flutter/material.dart';
+import 'package:invoiceninja_flutter/ui/app/edit_scaffold.dart';
+import 'package:invoiceninja_flutter/ui/app/form_card.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/edit/purchase_order_edit_vm.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
+import 'package:invoiceninja_flutter/ui/app/scrollable_listview.dart';
+
+class PurchaseOrderEdit extends StatefulWidget {
+  const PurchaseOrderEdit({
+    Key key,
+    @required this.viewModel,
+  }) : super(key: key);
+
+  final PurchaseOrderEditVM viewModel;
+
+  @override
+  _PurchaseOrderEditState createState() => _PurchaseOrderEditState();
+}
+
+class _PurchaseOrderEditState extends State<PurchaseOrderEdit> {
+  static final GlobalKey<FormState> _formKey =
+      GlobalKey<FormState>(debugLabel: '_purchaseOrderEdit');
+
+  List<TextEditingController> _controllers = [];
+
+  @override
+  void didChangeDependencies() {
+    _controllers = [
+      // STARTER: array - do not remove comment
+    ];
+
+    _controllers.forEach((controller) => controller.removeListener(_onChanged));
+
+    // STARTER: read value - do not remove comment
+    //_purchase_ordersController.text = purchase_order.purchase_orders;
+
+    _controllers.forEach((controller) => controller.addListener(_onChanged));
+
+    super.didChangeDependencies();
+  }
+
+  @override
+  void dispose() {
+    _controllers.forEach((controller) {
+      controller.removeListener(_onChanged);
+      controller.dispose();
+    });
+
+    super.dispose();
+  }
+
+  void _onChanged() {
+    //
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final viewModel = widget.viewModel;
+    final localization = AppLocalization.of(context);
+    final purchaseOrder = viewModel.purchaseOrder;
+
+    return EditScaffold(
+      title: purchaseOrder.isNew
+          ? localization.newPurchaseOrder
+          : localization.editPurchaseOrder,
+      onCancelPressed: (context) => viewModel.onCancelPressed(context),
+      onSavePressed: (context) {
+        final bool isValid = _formKey.currentState.validate();
+
+        /*
+          setState(() {
+            _autoValidate = !isValid;
+          });
+          */
+
+        if (!isValid) {
+          return;
+        }
+
+        viewModel.onSavePressed(context);
+      },
+      body: Form(
+          key: _formKey,
+          child: Builder(builder: (BuildContext context) {
+            return ScrollableListView(
+              children: <Widget>[
+                FormCard(
+                  children: <Widget>[],
+                ),
+              ],
+            );
+          })),
+    );
+  }
+}

lib/ui/purchase_order/edit/purchase_order_edit_vm.dart

@@ -0,0 +1,116 @@
+import 'dart:async';
+import 'package:flutter/material.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:invoiceninja_flutter/redux/ui/ui_actions.dart';
+import 'package:redux/redux.dart';
+import 'package:invoiceninja_flutter/utils/completers.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/ui/app/dialogs/error_dialog.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/view/purchase_order_view_vm.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/edit/purchase_order_edit.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:flutter_styled_toast/flutter_styled_toast.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
+
+class PurchaseOrderEditScreen extends StatelessWidget {
+  const PurchaseOrderEditScreen({Key key}) : super(key: key);
+  static const String route = '/purchase_order/edit';
+
+  @override
+  Widget build(BuildContext context) {
+    return StoreConnector<AppState, PurchaseOrderEditVM>(
+      converter: (Store<AppState> store) {
+        return PurchaseOrderEditVM.fromStore(store);
+      },
+      builder: (context, viewModel) {
+        return PurchaseOrderEdit(
+          viewModel: viewModel,
+          key: ValueKey(viewModel.purchaseOrder.updatedAt),
+        );
+      },
+    );
+  }
+}
+
+class PurchaseOrderEditVM {
+  PurchaseOrderEditVM({
+    @required this.state,
+    @required this.purchaseOrder,
+    @required this.company,
+    @required this.onChanged,
+    @required this.isSaving,
+    @required this.origPurchaseOrder,
+    @required this.onSavePressed,
+    @required this.onCancelPressed,
+    @required this.isLoading,
+  });
+
+  factory PurchaseOrderEditVM.fromStore(Store<AppState> store) {
+    final state = store.state;
+    final purchaseOrder = state.purchaseOrderUIState.editing;
+
+    return PurchaseOrderEditVM(
+      state: state,
+      isLoading: state.isLoading,
+      isSaving: state.isSaving,
+      origPurchaseOrder: state.purchaseOrderState.map[purchaseOrder.id],
+      purchaseOrder: purchaseOrder,
+      company: state.company,
+      onChanged: (InvoiceEntity purchaseOrder) {
+        store.dispatch(UpdatePurchaseOrder(purchaseOrder));
+      },
+      onCancelPressed: (BuildContext context) {
+        createEntity(context: context, entity: InvoiceEntity(), force: true);
+        if (state.purchaseOrderUIState.cancelCompleter != null) {
+          state.purchaseOrderUIState.cancelCompleter.complete();
+        } else {
+          store.dispatch(UpdateCurrentRoute(state.uiState.previousRoute));
+        }
+      },
+      onSavePressed: (BuildContext context) {
+        Debouncer.runOnComplete(() {
+          final purchaseOrder = store.state.purchaseOrderUIState.editing;
+          final localization = AppLocalization.of(context);
+          final Completer<InvoiceEntity> completer =
+              new Completer<InvoiceEntity>();
+          store.dispatch(SavePurchaseOrderRequest(
+              completer: completer, purchaseOrder: purchaseOrder));
+          return completer.future.then((savedPurchaseOrder) {
+            showToast(purchaseOrder.isNew
+                ? localization.createdPurchaseOrder
+                : localization.updatedPurchaseOrder);
+            if (state.prefState.isMobile) {
+              store.dispatch(UpdateCurrentRoute(PurchaseOrderViewScreen.route));
+              if (purchaseOrder.isNew) {
+                Navigator.of(context)
+                    .pushReplacementNamed(PurchaseOrderViewScreen.route);
+              } else {
+                Navigator.of(context).pop(savedPurchaseOrder);
+              }
+            } else {
+              viewEntity(entity: savedPurchaseOrder, force: true);
+            }
+          }).catchError((Object error) {
+            showDialog<ErrorDialog>(
+                context: context,
+                builder: (BuildContext context) {
+                  return ErrorDialog(error);
+                });
+          });
+        });
+      },
+    );
+  }
+
+  final InvoiceEntity purchaseOrder;
+  final CompanyEntity company;
+  final Function(InvoiceEntity) onChanged;
+  final Function(BuildContext) onSavePressed;
+  final Function(BuildContext) onCancelPressed;
+  final bool isLoading;
+  final bool isSaving;
+  final InvoiceEntity origPurchaseOrder;
+  final AppState state;
+}

lib/ui/purchase_order/purchase_order_list_item.dart

@@ -0,0 +1,99 @@
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/ui/app/entity_state_label.dart';
+import 'package:invoiceninja_flutter/utils/formatting.dart';
+import 'package:flutter/material.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/ui/app/dismissible_entity.dart';
+
+class PurchaseOrderListItem extends StatelessWidget {
+  const PurchaseOrderListItem({
+    @required this.user,
+    @required this.purchaseOrder,
+    @required this.filter,
+    this.onTap,
+    this.onLongPress,
+    this.onCheckboxChanged,
+    this.isChecked = false,
+  });
+
+  final UserEntity user;
+  final GestureTapCallback onTap;
+  final GestureTapCallback onLongPress;
+  final InvoiceEntity purchaseOrder;
+  final String filter;
+  final Function(bool) onCheckboxChanged;
+  final bool isChecked;
+
+  @override
+  Widget build(BuildContext context) {
+    final store = StoreProvider.of<AppState>(context);
+    final state = store.state;
+    final uiState = state.uiState;
+    final purchaseOrderUIState = uiState.purchaseOrderUIState;
+    final listUIState = purchaseOrderUIState.listUIState;
+    final isInMultiselect = listUIState.isInMultiselect();
+    final showCheckbox = onCheckboxChanged != null || isInMultiselect;
+
+    final filterMatch = filter != null && filter.isNotEmpty
+        ? purchaseOrder.matchesFilterValue(filter)
+        : null;
+    final subtitle = filterMatch;
+
+    return DismissibleEntity(
+      userCompany: state.userCompany,
+      entity: purchaseOrder,
+      isSelected: purchaseOrder.id ==
+          (uiState.isEditing
+              ? purchaseOrderUIState.editing.id
+              : purchaseOrderUIState.selectedId),
+      child: ListTile(
+        onTap: () =>
+            onTap != null ? onTap() : selectEntity(entity: purchaseOrder),
+        onLongPress: () => onLongPress != null
+            ? onLongPress()
+            : selectEntity(entity: purchaseOrder, longPress: true),
+        leading: showCheckbox
+            ? IgnorePointer(
+                ignoring: listUIState.isInMultiselect(),
+                child: Checkbox(
+                  value: isChecked,
+                  materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                  onChanged: (value) => onCheckboxChanged(value),
+                  activeColor: Theme.of(context).colorScheme.secondary,
+                ),
+              )
+            : null,
+        title: Container(
+          width: MediaQuery.of(context).size.width,
+          child: Row(
+            children: <Widget>[
+              Expanded(
+                child: Text(
+                  purchaseOrder.number,
+                  style: Theme.of(context).textTheme.subtitle1,
+                ),
+              ),
+              Text(formatNumber(purchaseOrder.listDisplayAmount, context),
+                  style: Theme.of(context).textTheme.subtitle1),
+            ],
+          ),
+        ),
+        subtitle: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: <Widget>[
+            subtitle != null && subtitle.isNotEmpty
+                ? Text(
+                    subtitle,
+                    maxLines: 3,
+                    overflow: TextOverflow.ellipsis,
+                  )
+                : Container(),
+            EntityStateLabel(purchaseOrder),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/ui/purchase_order/purchase_order_list_vm.dart

@@ -0,0 +1,124 @@
+import 'dart:async';
+import 'package:invoiceninja_flutter/ui/app/tables/entity_list.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_list_item.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_presenter.dart';
+import 'package:redux/redux.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:built_collection/built_collection.dart';
+import 'package:invoiceninja_flutter/redux/ui/list_ui_state.dart';
+import 'package:invoiceninja_flutter/utils/completers.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_selectors.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+
+class PurchaseOrderListBuilder extends StatelessWidget {
+  const PurchaseOrderListBuilder({Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return StoreConnector<AppState, PurchaseOrderListVM>(
+      converter: PurchaseOrderListVM.fromStore,
+      builder: (context, viewModel) {
+        return EntityList(
+            entityType: EntityType.purchaseOrder,
+            presenter: PurchaseOrderPresenter(),
+            state: viewModel.state,
+            entityList: viewModel.purchaseOrderList,
+            tableColumns: viewModel.tableColumns,
+            onRefreshed: viewModel.onRefreshed,
+            onSortColumn: viewModel.onSortColumn,
+            onClearMultiselect: viewModel.onClearMultielsect,
+            itemBuilder: (BuildContext context, index) {
+              final state = viewModel.state;
+              final purchaseOrderId = viewModel.purchaseOrderList[index];
+              final purchaseOrder = viewModel.purchaseOrderMap[purchaseOrderId];
+              final listState = state.getListState(EntityType.purchaseOrder);
+              final isInMultiselect = listState.isInMultiselect();
+
+              return PurchaseOrderListItem(
+                user: viewModel.state.user,
+                filter: viewModel.filter,
+                purchaseOrder: purchaseOrder,
+                isChecked:
+                    isInMultiselect && listState.isSelected(purchaseOrder.id),
+              );
+            });
+      },
+    );
+  }
+}
+
+class PurchaseOrderListVM {
+  PurchaseOrderListVM({
+    @required this.state,
+    @required this.userCompany,
+    @required this.purchaseOrderList,
+    @required this.purchaseOrderMap,
+    @required this.filter,
+    @required this.isLoading,
+    @required this.listState,
+    @required this.onRefreshed,
+    @required this.onEntityAction,
+    @required this.tableColumns,
+    @required this.onSortColumn,
+    @required this.onClearMultielsect,
+  });
+
+  static PurchaseOrderListVM fromStore(Store<AppState> store) {
+    Future<Null> _handleRefresh(BuildContext context) {
+      if (store.state.isLoading) {
+        return Future<Null>(null);
+      }
+      final completer = snackBarCompleter<Null>(
+          context, AppLocalization.of(context).refreshComplete);
+      store.dispatch(RefreshData(completer: completer));
+      return completer.future;
+    }
+
+    final state = store.state;
+
+    return PurchaseOrderListVM(
+      state: state,
+      userCompany: state.userCompany,
+      listState: state.purchaseOrderListState,
+      purchaseOrderList: memoizedFilteredPurchaseOrderList(
+        state.getUISelection(EntityType.purchaseOrder),
+        state.purchaseOrderState.map,
+        state.purchaseOrderState.list,
+        state.clientState.map,
+        state.purchaseOrderListState,
+        state.userState.map,
+      ),
+      purchaseOrderMap: state.purchaseOrderState.map,
+      isLoading: state.isLoading,
+      filter: state.purchaseOrderUIState.listUIState.filter,
+      onEntityAction: (BuildContext context, List<BaseEntity> purchaseOrders,
+              EntityAction action) =>
+          handlePurchaseOrderAction(context, purchaseOrders, action),
+      onRefreshed: (context) => _handleRefresh(context),
+      tableColumns: state.userCompany.settings
+              ?.getTableColumns(EntityType.purchaseOrder) ??
+          PurchaseOrderPresenter.getDefaultTableFields(state.userCompany),
+      onSortColumn: (field) => store.dispatch(SortPurchaseOrders(field)),
+      onClearMultielsect: () => store.dispatch(ClearPurchaseOrderMultiselect()),
+    );
+  }
+
+  final AppState state;
+  final UserCompanyEntity userCompany;
+  final List<String> purchaseOrderList;
+  final BuiltMap<String, InvoiceEntity> purchaseOrderMap;
+  final ListUIState listState;
+  final String filter;
+  final bool isLoading;
+  final Function(BuildContext) onRefreshed;
+  final Function(BuildContext, List<BaseEntity>, EntityAction) onEntityAction;
+  final List<String> tableColumns;
+  final Function(String) onSortColumn;
+  final Function onClearMultielsect;
+}

lib/ui/purchase_order/purchase_order_presenter.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/ui/app/presenters/entity_presenter.dart';
+
+class PurchaseOrderPresenter extends EntityPresenter {
+  static List<String> getDefaultTableFields(UserCompanyEntity userCompany) {
+    return [];
+  }
+
+  static List<String> getAllTableFields(UserCompanyEntity userCompany) {
+    return [
+      ...getDefaultTableFields(userCompany),
+      ...EntityPresenter.getBaseFields(),
+    ];
+  }
+
+  @override
+  Widget getField({String field, BuildContext context}) {
+    //final state = StoreProvider.of<AppState>(context).state;
+    //final purchaseOrder = entity as InvoiceEntity;
+
+    switch (field) {
+    }
+
+    return super.getField(field: field, context: context);
+  }
+}

lib/ui/purchase_order/purchase_order_screen.dart

@@ -0,0 +1,119 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/data/models/purchase_order_model.dart';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+import 'package:invoiceninja_flutter/ui/app/app_bottom_bar.dart';
+import 'package:invoiceninja_flutter/ui/app/list_scaffold.dart';
+import 'package:invoiceninja_flutter/ui/app/list_filter.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_list_vm.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/purchase_order_presenter.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
+
+import 'purchase_order_screen_vm.dart';
+
+class PurchaseOrderScreen extends StatelessWidget {
+  const PurchaseOrderScreen({
+    Key key,
+    @required this.viewModel,
+  }) : super(key: key);
+
+  static const String route = '/purchase_order';
+
+  final PurchaseOrderScreenVM viewModel;
+
+  @override
+  Widget build(BuildContext context) {
+    final store = StoreProvider.of<AppState>(context);
+    final state = store.state;
+    final company = state.company;
+    final userCompany = state.userCompany;
+    final localization = AppLocalization.of(context);
+
+    return ListScaffold(
+      entityType: EntityType.purchaseOrder,
+      onHamburgerLongPress: () =>
+          store.dispatch(StartPurchaseOrderMultiselect()),
+      appBarTitle: ListFilter(
+        key: ValueKey(
+            '__filter_${state.purchaseOrderListState.filterClearedAt}__'),
+        entityType: EntityType.purchaseOrder,
+        entityIds: viewModel.purchaseOrderList,
+        filter: state.purchaseOrderListState.filter,
+        onFilterChanged: (value) {
+          store.dispatch(FilterPurchaseOrders(value));
+        },
+        onSelectedState: (EntityState state, value) {
+          store.dispatch(FilterPurchaseOrdersByState(state));
+        },
+      ),
+      onCheckboxPressed: () {
+        if (store.state.purchaseOrderListState.isInMultiselect()) {
+          store.dispatch(ClearPurchaseOrderMultiselect());
+        } else {
+          store.dispatch(StartPurchaseOrderMultiselect());
+        }
+      },
+      body: PurchaseOrderListBuilder(),
+      bottomNavigationBar: AppBottomBar(
+        entityType: EntityType.purchaseOrder,
+        tableColumns: PurchaseOrderPresenter.getAllTableFields(userCompany),
+        defaultTableColumns:
+            PurchaseOrderPresenter.getDefaultTableFields(userCompany),
+        onSelectedSortField: (value) {
+          store.dispatch(SortPurchaseOrders(value));
+        },
+        sortFields: [
+          PurchaseOrderFields.number,
+          PurchaseOrderFields.date,
+          PurchaseOrderFields.dueDate,
+          EntityFields.updatedAt,
+        ],
+        onSelectedState: (EntityState state, value) {
+          store.dispatch(FilterPurchaseOrdersByState(state));
+        },
+        onCheckboxPressed: () {
+          if (store.state.purchaseOrderListState.isInMultiselect()) {
+            store.dispatch(ClearPurchaseOrderMultiselect());
+          } else {
+            store.dispatch(StartPurchaseOrderMultiselect());
+          }
+        },
+        customValues1: company.getCustomFieldValues(CustomFieldType.invoice1,
+            excludeBlank: true),
+        customValues2: company.getCustomFieldValues(CustomFieldType.invoice2,
+            excludeBlank: true),
+        customValues3: company.getCustomFieldValues(CustomFieldType.invoice3,
+            excludeBlank: true),
+        customValues4: company.getCustomFieldValues(CustomFieldType.invoice4,
+            excludeBlank: true),
+        onSelectedCustom1: (value) =>
+            store.dispatch(FilterPurchaseOrdersByCustom1(value)),
+        onSelectedCustom2: (value) =>
+            store.dispatch(FilterPurchaseOrdersByCustom2(value)),
+        onSelectedCustom3: (value) =>
+            store.dispatch(FilterPurchaseOrdersByCustom3(value)),
+        onSelectedCustom4: (value) =>
+            store.dispatch(FilterPurchaseOrdersByCustom4(value)),
+      ),
+      floatingActionButton: state.prefState.isMenuFloated &&
+              userCompany.canCreate(EntityType.purchaseOrder)
+          ? FloatingActionButton(
+              heroTag: 'purchase_order_fab',
+              backgroundColor: Theme.of(context).primaryColorDark,
+              onPressed: () {
+                createEntityByType(
+                    context: context, entityType: EntityType.purchaseOrder);
+              },
+              child: Icon(
+                Icons.add,
+                color: Colors.white,
+              ),
+              tooltip: localization.newPurchaseOrder,
+            )
+          : null,
+    );
+  }
+}

lib/ui/purchase_order/purchase_order_screen_vm.dart

@@ -0,0 +1,64 @@
+import 'package:built_collection/built_collection.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_selectors.dart';
+import 'package:redux/redux.dart';
+
+import 'purchase_order_screen.dart';
+
+class PurchaseOrderScreenBuilder extends StatelessWidget {
+  const PurchaseOrderScreenBuilder({Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return StoreConnector<AppState, PurchaseOrderScreenVM>(
+      converter: PurchaseOrderScreenVM.fromStore,
+      builder: (context, vm) {
+        return PurchaseOrderScreen(
+          viewModel: vm,
+        );
+      },
+    );
+  }
+}
+
+class PurchaseOrderScreenVM {
+  PurchaseOrderScreenVM({
+    @required this.isInMultiselect,
+    @required this.purchaseOrderList,
+    @required this.userCompany,
+    @required this.onEntityAction,
+    @required this.purchaseOrderMap,
+  });
+
+  final bool isInMultiselect;
+  final UserCompanyEntity userCompany;
+  final List<String> purchaseOrderList;
+  final Function(BuildContext, List<BaseEntity>, EntityAction) onEntityAction;
+  final BuiltMap<String, InvoiceEntity> purchaseOrderMap;
+
+  static PurchaseOrderScreenVM fromStore(Store<AppState> store) {
+    final state = store.state;
+
+    return PurchaseOrderScreenVM(
+      purchaseOrderMap: state.purchaseOrderState.map,
+      purchaseOrderList: memoizedFilteredPurchaseOrderList(
+        state.getUISelection(EntityType.purchaseOrder),
+        state.purchaseOrderState.map,
+        state.purchaseOrderState.list,
+        state.clientState.map,
+        state.purchaseOrderListState,
+        state.userState.map,
+      ),
+      userCompany: state.userCompany,
+      isInMultiselect: state.purchaseOrderListState.isInMultiselect(),
+      onEntityAction: (BuildContext context, List<BaseEntity> purchaseOrders,
+              EntityAction action) =>
+          handlePurchaseOrderAction(context, purchaseOrders, action),
+    );
+  }
+}

lib/ui/purchase_order/view/purchase_order_view.dart

@@ -0,0 +1,34 @@
+import 'package:flutter/material.dart';
+import 'package:invoiceninja_flutter/ui/app/scrollable_listview.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/view/purchase_order_view_vm.dart';
+import 'package:invoiceninja_flutter/ui/app/view_scaffold.dart';
+
+class PurchaseOrderView extends StatefulWidget {
+  const PurchaseOrderView({
+    Key key,
+    @required this.viewModel,
+    @required this.isFilter,
+  }) : super(key: key);
+
+  final PurchaseOrderViewVM viewModel;
+  final bool isFilter;
+
+  @override
+  _PurchaseOrderViewState createState() => new _PurchaseOrderViewState();
+}
+
+class _PurchaseOrderViewState extends State<PurchaseOrderView> {
+  @override
+  Widget build(BuildContext context) {
+    final viewModel = widget.viewModel;
+    final purchaseOrder = viewModel.purchaseOrder;
+
+    return ViewScaffold(
+      isFilter: widget.isFilter,
+      entity: purchaseOrder,
+      body: ScrollableListView(
+        children: <Widget>[],
+      ),
+    );
+  }
+}

lib/ui/purchase_order/view/purchase_order_view_vm.dart

@@ -0,0 +1,84 @@
+import 'dart:async';
+import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
+import 'package:flutter/material.dart';
+import 'package:invoiceninja_flutter/utils/completers.dart';
+import 'package:invoiceninja_flutter/utils/localization.dart';
+import 'package:redux/redux.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/redux/purchase_order/purchase_order_actions.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
+import 'package:invoiceninja_flutter/ui/purchase_order/view/purchase_order_view.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+
+class PurchaseOrderViewScreen extends StatelessWidget {
+  const PurchaseOrderViewScreen({
+    Key key,
+    this.isFilter = false,
+  }) : super(key: key);
+  static const String route = '/purchase_order/view';
+  final bool isFilter;
+
+  @override
+  Widget build(BuildContext context) {
+    return StoreConnector<AppState, PurchaseOrderViewVM>(
+      converter: (Store<AppState> store) {
+        return PurchaseOrderViewVM.fromStore(store);
+      },
+      builder: (context, vm) {
+        return PurchaseOrderView(
+          viewModel: vm,
+          isFilter: isFilter,
+        );
+      },
+    );
+  }
+}
+
+class PurchaseOrderViewVM {
+  PurchaseOrderViewVM({
+    @required this.state,
+    @required this.purchaseOrder,
+    @required this.company,
+    @required this.onEntityAction,
+    @required this.onRefreshed,
+    @required this.isSaving,
+    @required this.isLoading,
+    @required this.isDirty,
+  });
+
+  factory PurchaseOrderViewVM.fromStore(Store<AppState> store) {
+    final state = store.state;
+    final purchaseOrder =
+        state.purchaseOrderState.map[state.purchaseOrderUIState.selectedId] ??
+            InvoiceEntity(id: state.purchaseOrderUIState.selectedId);
+
+    Future<Null> _handleRefresh(BuildContext context) {
+      final completer = snackBarCompleter<Null>(
+          context, AppLocalization.of(context).refreshComplete);
+      store.dispatch(LoadPurchaseOrder(
+          completer: completer, purchaseOrderId: purchaseOrder.id));
+      return completer.future;
+    }
+
+    return PurchaseOrderViewVM(
+      state: state,
+      company: state.company,
+      isSaving: state.isSaving,
+      isLoading: state.isLoading,
+      isDirty: purchaseOrder.isNew,
+      purchaseOrder: purchaseOrder,
+      onRefreshed: (context) => _handleRefresh(context),
+      onEntityAction: (BuildContext context, EntityAction action) =>
+          handleEntitiesActions([purchaseOrder], action, autoPop: true),
+    );
+  }
+
+  final AppState state;
+  final InvoiceEntity purchaseOrder;
+  final CompanyEntity company;
+  final Function(BuildContext, EntityAction) onEntityAction;
+  final Function(BuildContext) onRefreshed;
+  final bool isSaving;
+  final bool isLoading;
+  final bool isDirty;
+}

lib/utils/i18n.dart

@@ -16,6 +16,18 @@ mixin LocalizationsProvider on LocaleCodeAware {
   static final Map<String, Map<String, String>> _localizedValues = {
     'en': {
       // STARTER: lang key - do not remove comment
+      'purchase_order': 'PurchaseOrder',
+      'purchase_orders': 'PurchaseOrders',
+      'new_purchase_order': 'New PurchaseOrder',
+      'edit_purchase_order': 'Edit PurchaseOrder',
+      'created_purchase_order': 'Successfully created purchase_order',
+      'updated_purchase_order': 'Successfully updated purchase_order',
+      'archived_purchase_order': 'Successfully archived purchase_order',
+      'deleted_purchase_order': 'Successfully deleted purchase_order',
+      'removed_purchase_order': 'Successfully removed purchase_order',
+      'restored_purchase_order': 'Successfully restored purchase_order',
+      'search_purchase_order': 'Search PurchaseOrder',
+
       'login_url': 'Login URL',
       'enable_applying_payments': 'Enable Applying Payments',
       'enable_applying_payments_help':
@@ -70606,6 +70618,36 @@ mixin LocalizationsProvider on LocaleCodeAware {
       _localizedValues['en']['login_url'];
 
   // STARTER: lang field - do not remove comment
+  String get purchaseOrder =>
+      _localizedValues[localeCode]['purchase_order'] ??
+      _localizedValues['en']['purchase_order'];
+  String get purchaseOrders =>
+      _localizedValues[localeCode]['purchase_orders'] ??
+      _localizedValues['en']['purchase_orders'];
+  String get newPurchaseOrder =>
+      _localizedValues[localeCode]['new_purchase_order'] ??
+      _localizedValues['en']['new_purchase_order'];
+  String get createdPurchaseOrder =>
+      _localizedValues[localeCode]['created_purchase_order'] ??
+      _localizedValues['en']['created_purchase_order'];
+  String get updatedPurchaseOrder =>
+      _localizedValues[localeCode]['updated_purchase_order'] ??
+      _localizedValues['en']['updated_purchase_order'];
+  String get archivedPurchaseOrder =>
+      _localizedValues[localeCode]['archived_purchase_order'] ??
+      _localizedValues['en']['archived_purchase_order'];
+  String get deletedPurchaseOrder =>
+      _localizedValues[localeCode]['deleted_purchase_order'] ??
+      _localizedValues['en']['deleted_purchase_order'];
+  String get restoredPurchaseOrder =>
+      _localizedValues[localeCode]['restored_purchase_order'] ??
+      _localizedValues['en']['restored_purchase_order'];
+  String get editPurchaseOrder =>
+      _localizedValues[localeCode]['edit_purchase_order'] ??
+      _localizedValues['en']['edit_purchase_order'];
+  String get searchPurchaseOrder =>
+      _localizedValues[localeCode]['search_purchase_order'] ??
+      _localizedValues['en']['search_purchase_order'];
 
   String lookup(String key) {
     final lookupKey = toSnakeCase(key);

starter.sh

@@ -443,7 +443,7 @@ else
 
     comment="STARTER: entity type - do not remove comment"
     code="static const EntityType ${module_camel} = _\$${module_camel};${lineBreak}"
-    #sed -i -e "s/$comment/$comment${lineBreak}$code/g" ./lib/data/models/entities.dart
+    sed -i -e "s/$comment/$comment${lineBreak}$code/g" ./lib/data/models/entities.dart
 
     echo "Generating built files.."
     flutter packages pub run build_runner clean

stubs/data/repositories/stub_repository

@@ -1,7 +1,7 @@
-import 'dart:async';
 import 'dart:convert';
 import 'dart:core';
 import 'package:built_collection/built_collection.dart';
+import 'package:invoiceninja_flutter/constants.dart';
 import 'package:invoiceninja_flutter/data/models/serializers.dart';
 import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/data/models/models.dart';

stubs/redux/stub/stub_actions

@@ -276,14 +276,13 @@ void handleStubAction(
   }
 
   final store = StoreProvider.of<AppState>(context);
-  final state = store.state;
   final localization = AppLocalization.of(context);
   final stub = stubs.first as StubEntity;
   final stubIds = stubs.map((stub) => stub.id).toList();
 
   switch (action) {
     case EntityAction.edit:
-      editEntity(context: context, entity: stub);
+      editEntity(entity: stub);
       break;
     case EntityAction.restore:
       store.dispatch(RestoreStubsRequest(

stubs/ui/stub/stub_list_item

@@ -51,11 +51,11 @@ class StubListItem extends StatelessWidget {
       child: ListTile(
         onTap: () => onTap != null
             ? onTap()
-            : selectEntity(entity: stub, context: context),
+            : selectEntity(entity: stub),
         onLongPress: () => onLongPress != null
             ? onLongPress()
             : selectEntity(
-                entity: stub, context: context, longPress: true),
+                entity: stub, longPress: true),
         leading: showCheckbox
             ? IgnorePointer(
                 ignoring: listUIState.isInMultiselect(),