Purchase orders

lib/ui/design/edit/design_edit.dart

@@ -192,6 +192,7 @@ class _DesignEditState extends State<DesignEdit>
         context: context,
         design: design,
         isDraftMode: _isDraftMode,
+        isPurchaseOrder: false,
         onComplete: (response) async {
           setState(() {
             _isLoading = false;

lib/ui/invoice/edit/invoice_edit_desktop.dart

@@ -1024,8 +1024,13 @@ class __PdfPreviewState extends State<_PdfPreview> {
     final state = store.state;
     final credentials = state.credentials;
     final webClient = WebClient();
-    String url =
+    String url = '${credentials.url}/live_preview';
-        '${credentials.url}/live_preview?entity=${invoice.entityType.snakeCase}';
+
+    if (invoice.isPurchaseOrder) {
+      url += '/purchase_order';
+    }
+
+    url += '?entity=${invoice.entityType.snakeCase}';
     if (invoice.isOld) {
       url += '&entity_id=${invoice.id}';
     }

lib/ui/invoice/edit/invoice_edit_pdf.dart

@@ -48,19 +48,25 @@ class InvoiceEditPDFState extends State<InvoiceEditPDF> {
       _isLoading = true;
     });
 
+    final invoice = viewModel.invoice;
     final credentials = viewModel.state.credentials;
     final webClient = WebClient();
-    String url =
+    String url = '${credentials.url}/live_preview';
-        '${credentials.url}/live_preview?entity=${viewModel.invoice.entityType.snakeCase}';
+
-    if (viewModel.invoice.isOld) {
+    if (invoice.isPurchaseOrder) {
-      url += '&entity_id=${viewModel.invoice.id}';
+      url += '/purchase_order';
+    }
+
+    url += '?entity=${invoice.entityType.snakeCase}';
+
+    if (invoice.isOld) {
+      url += '&entity_id=${invoice.id}';
     }
     if (viewModel.state.isHosted) {
       url = url.replaceFirst('//', '//preview.');
     }
 
-    final data =
+    final data = serializers.serializeWith(InvoiceEntity.serializer, invoice);
-        serializers.serializeWith(InvoiceEntity.serializer, viewModel.invoice);
     webClient
         .post(url, credentials.token,
             data: json.encode(data), rawResponse: true)

lib/ui/settings/invoice_design.dart

@@ -143,7 +143,7 @@ class _InvoiceDesignState extends State<InvoiceDesign>
               FormCard(
                 crossAxisAlignment: CrossAxisAlignment.stretch,
                 children: <Widget>[
-                  if (state.isProPlan) ...[
+                  if (state.isProPlan || state.isTrial) ...[
                     if (company.isModuleEnabled(EntityType.invoice)) ...[
                       DesignPicker(
                         label: localization.invoiceDesign,

lib/utils/designs.dart

@@ -20,6 +20,7 @@ void loadDesign({
   @required BuildContext context,
   @required DesignEntity design,
   @required bool isDraftMode,
+  @required bool isPurchaseOrder,
   @required Function(Response) onComplete,
 }) {
   if (Config.DEMO_MODE) {
@@ -32,6 +33,10 @@ void loadDesign({
   final credentials = state.credentials;
   String url = '${credentials.url}/preview';
 
+  if (isPurchaseOrder) {
+    url += '/purchase_order';
+  }
+
   if (isDraftMode) {
     url += '?html=true';
   }