Set serial numbers when creating a new stock item

InvenTree/build/views.py

@@ -282,10 +282,9 @@ class BuildComplete(AjaxUpdateView):
 
                     if len(existing) > 0:
                         exists = ",".join([str(x) for x in existing])
-                        form.errors['serial_numbers'] = [_('The following serial numbers already exist: {sn}'.format(sn=exists))]
+                        form.errors['serial_numbers'] = [_('The following serial numbers already exist: ({sn})'.format(sn=exists))]
                         valid = False
 
-
                 except ValidationError as e:
                     form.errors['serial_numbers'] = e.messages
                     valid = False

InvenTree/part/models.py

@@ -280,7 +280,6 @@ class Part(models.Model):
         else:
             return static('/img/blank_image.png')
 
-
     def validate_unique(self, exclude=None):
         """ Validate that a part is 'unique'.
         Uniqueness is checked across the following (case insensitive) fields:

InvenTree/stock/forms.py

@@ -6,8 +6,9 @@ Django Forms for interacting with Stock app
 from __future__ import unicode_literals
 
 from django import forms
-from InvenTree.forms import HelperForm
+from django.forms.utils import ErrorDict
 
+from InvenTree.forms import HelperForm
 from .models import StockLocation, StockItem, StockItemTracking
 
 
@@ -26,6 +27,8 @@ class EditStockLocationForm(HelperForm):
 class CreateStockItemForm(HelperForm):
     """ Form for creating a new StockItem """
 
+    serial_numbers = forms.CharField(label='Serial numbers', required=False, help_text='Enter unique serial numbers')
+
     class Meta:
         model = StockItem
         fields = [
@@ -34,13 +37,30 @@ class CreateStockItemForm(HelperForm):
             'location',
             'quantity',
             'batch',
-            'serial',
+            'serial_numbers',
             'delete_on_deplete',
             'status',
             'notes',
             'URL',
         ]
 
+    # Custom clean to prevent complex StockItem.clean() logic from running (yet)
+    def full_clean(self):
+        self._errors = ErrorDict()
+        
+        if not self.is_bound:  # Stop further processing.
+            return
+        
+        self.cleaned_data = {}
+        # If the form is permitted to be empty, and none of the form data has
+        # changed from the initial data, short circuit any validation.
+        if self.empty_permitted and not self.has_changed():
+            return
+        
+        # Don't run _post_clean() as this will run StockItem.clean()
+        self._clean_fields()
+        self._clean_form()
+
 
 class AdjustStockForm(forms.ModelForm):
     """ Form for performing simple stock adjustments.

InvenTree/stock/models.py

@@ -147,7 +147,6 @@ class StockItem(models.Model):
 
         return True
 
-
     def validate_unique(self, exclude=None):
         super(StockItem, self).validate_unique(exclude)
 
@@ -192,16 +191,23 @@ class StockItem(models.Model):
 
             if self.part is not None:
                 # A trackable part must have a serial number
-                if self.part.trackable and not self.serial:
+                if self.part.trackable:
+                    if not self.serial:
+                        raise ValidationError({'serial': _('Serial number must be set for trackable items')})
+
+                    if self.delete_on_deplete:
+                        raise ValidationError({'delete_on_deplete': _("Must be set to False for trackable items")})
+                    
+                    # Serial number cannot be set for items with quantity greater than 1
+                    if not self.quantity == 1:
                         raise ValidationError({
-                        'serial': _('Serial number must be set for trackable items')
+                            'quantity': _("Quantity must be set to 1 for item with a serial number"),
+                            'serial': _("Serial number cannot be set if quantity > 1")
                         })
 
                 # A template part cannot be instantiated as a StockItem
                 if self.part.is_template:
-                    raise ValidationError({
+                    raise ValidationError({'part': _('Stock item cannot be created for a template Part')})
-                        'part': _('Stock item cannot be created for a template Part')
-                    })
 
         except Part.DoesNotExist:
             # This gets thrown if self.supplier_part is null
@@ -213,13 +219,6 @@ class StockItem(models.Model):
                 'belongs_to': _('Item cannot belong to itself')
             })
 
-        # Serial number cannot be set for items with quantity greater than 1
-        if not self.quantity == 1 and self.serial:
-            raise ValidationError({
-                'quantity': _("Quantity must be set to 1 for item with a serial number"),
-                'serial': _("Serial number cannot be set if quantity > 1")
-            })
-
     def get_absolute_url(self):
         return reverse('stock-item-detail', kwargs={'pk': self.id})
 

InvenTree/stock/views.py

@@ -5,6 +5,7 @@ Django views for interacting with Stock app
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+from django.core.exceptions import ValidationError
 from django.views.generic.edit import FormMixin
 from django.views.generic import DetailView, ListView
 from django.forms.models import model_to_dict
@@ -17,6 +18,7 @@ from InvenTree.views import AjaxUpdateView, AjaxDeleteView, AjaxCreateView
 from InvenTree.views import QRCodeView
 
 from InvenTree.helpers import str2bool
+from InvenTree.helpers import ExtractSerialNumbers
 from datetime import datetime
 
 from part.models import Part
@@ -476,7 +478,7 @@ class StockItemCreate(AjaxCreateView):
         ForeignKey choices based on other selections
         """
 
-        form = super(AjaxCreateView, self).get_form()
+        form = super().get_form()
 
         # If the user has selected a Part, limit choices for SupplierPart
         if form['part'].value():
@@ -488,10 +490,16 @@ class StockItemCreate(AjaxCreateView):
                 # Hide the 'part' field (as a valid part is selected)
                 form.fields['part'].widget = HiddenInput()
 
+                # trackable parts get special consideration
+                if part.trackable:
+                    form.fields['delete_on_deplete'].widget = HiddenInput()
+                    form.fields['delete_on_deplete'].initial = False
+                else:
+                    form.fields.pop('serial_numbers')
+
                 # If the part is NOT purchaseable, hide the supplier_part field
                 if not part.purchaseable:
                     form.fields['supplier_part'].widget = HiddenInput()
-
                 else:
                     # Pre-select the allowable SupplierPart options
                     parts = form.fields['supplier_part'].queryset
@@ -555,6 +563,63 @@ class StockItemCreate(AjaxCreateView):
 
         return initials
 
+    def post(self, request, *args, **kwargs):
+        """ Handle POST of StockItemCreate form.
+
+        - Manage serial-number valdiation for tracked parts
+        """
+
+        form = self.get_form()
+
+        valid = form.is_valid()
+
+        if valid:
+            part_id = form['part'].value()
+            try:
+                part = Part.objects.get(id=part_id)
+                quantity = int(form['quantity'].value())
+            except (Part.DoesNotExist, ValueError):
+                part = None
+                quantity = 1
+                valid = False
+
+            if part is None:
+                form.errors['part'] = [_('Invalid part selection')]
+            else:
+                # A trackable part must provide serial numbesr
+                if part.trackable:
+                    sn = request.POST.get('serial_numbers', '')
+
+                    try:
+                        serials = ExtractSerialNumbers(sn, quantity)
+
+                        existing = []
+
+                        for serial in serials:
+                            if not StockItem.check_serial_number(part, serial):
+                                existing.append(serial)
+
+                        if len(existing) > 0:
+                            exists = ",".join([str(x) for x in existing])
+                            form.errors['serial_numbers'] = [_('The following serial numbers already exist: ({sn})'.format(sn=exists))]
+                            valid = False
+
+                    except ValidationError as e:
+                        form.errors['serial_numbers'] = e.messages
+                        valid = False
+
+        print("Valid?", valid)
+
+        valid = False
+
+        print("valid:", valid)
+
+        data = {
+            'form_valid': valid,
+        }
+
+        return self.renderJsonResponse(request, form, data=data)
+
 
 class StockLocationDelete(AjaxDeleteView):
     """