Add prepended text to order references for forms

InvenTree/InvenTree/forms.py

@@ -7,6 +7,8 @@ from __future__ import unicode_literals
 
 from django import forms
 from crispy_forms.helper import FormHelper
+from crispy_forms.layout import Field, Layout
+from crispy_forms.bootstrap import PrependedText
 from django.contrib.auth.models import User
 
 
@@ -19,6 +21,16 @@ class HelperForm(forms.ModelForm):
 
         self.helper.form_tag = False
 
+        """
+        Create a default 'layout' for this form.
+        Ref: https://django-crispy-forms.readthedocs.io/en/latest/layouts.html
+        This is required to do fancy things later (like adding PrependedText, etc).
+
+        Simply create a 'blank' layout for each available field.
+        """
+
+        self.helper.layout = Layout(*self.fields.keys())
+        
 
 class DeleteForm(forms.Form):
     """ Generic deletion form which provides simple user confirmation

InvenTree/order/forms.py

@@ -8,6 +8,9 @@ from __future__ import unicode_literals
 from django import forms
 from django.utils.translation import ugettext as _
 
+from crispy_forms.layout import Field, Layout
+from crispy_forms.bootstrap import PrependedText
+
 from mptt.fields import TreeNodeChoiceField
 
 from InvenTree.forms import HelperForm
@@ -88,6 +91,23 @@ class ReceivePurchaseOrderForm(HelperForm):
 class EditPurchaseOrderForm(HelperForm):
     """ Form for editing a PurchaseOrder object """
 
+    def __init__(self, *args, **kwargs):
+
+        super().__init__(*args, **kwargs)
+
+        # TODO - Refactor this?
+        self.helper.layout = Layout(
+            Field(PrependedText(
+                'reference',
+                'PO',
+                placeholder=_("Purchase Order")
+            )),
+            Field('supplier'),
+            Field('supplier_reference'),
+            Field('description'),
+            Field('link'),
+        )
+
     class Meta:
         model = PurchaseOrder
         fields = [
@@ -102,6 +122,23 @@ class EditPurchaseOrderForm(HelperForm):
 class EditSalesOrderForm(HelperForm):
     """ Form for editing a SalesOrder object """
 
+    def __init__(self, *args, **kwargs):
+
+        super().__init__(*args, **kwargs)
+
+        # TODO - Refactor?
+        self.helper.layout = Layout(
+            Field(PrependedText(
+                'reference',
+                'SO',
+                placeholder=_("Sales Order")
+            )),
+            Field('customer'),
+            Field('customer_reference'),
+            Field('description'),
+            Field('link'),
+        )
+
     class Meta:
         model = SalesOrder
         fields = [