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 vendorCity = 'vendor_city';
  static const String vendorState = 'vendor_state';
  static const String vendorPostalCode = 'vendor_postal_code';
  static const String vendorCountry = 'vendor_country';
  static const String expense = 'expense';
  static const String recurringInvoice = 'recurring_invoice';
}