StockLocation owner is now a GenericForeignKey that can be set to user or group models

InvenTree/stock/forms.py

@@ -10,6 +10,7 @@ from django.forms.utils import ErrorDict
 from django.utils.translation import ugettext as _
 from django.core.validators import MinValueValidator
 from django.core.exceptions import ValidationError
+from django.contrib.auth.models import User, Group
 
 from mptt.fields import TreeNodeChoiceField
 
@@ -85,15 +86,37 @@ class EditStockItemTestResultForm(HelperForm):
 class EditStockLocationForm(HelperForm):
     """ Form for editing a StockLocation """
 
+    owner = forms.ChoiceField(
+        label=_('Owner'),
+        help_text=_('Select Owner')
+    )
+
     class Meta:
         model = StockLocation
         fields = [
             'name',
             'parent',
             'description',
-            'owner',
         ]
 
+    def get_owner_choices(self):
+
+        choices = [('', '-' * 10)]
+
+        for group in Group.objects.all():
+            choices.append((f'group_{group.name}', f'{group} (Group)'))
+
+        for user in User.objects.all():
+            choices.append((f'user_{user.username}', f'{user} (User)'))
+
+        return choices
+
+    def __init__(self, *args, **kwargs):
+
+        super().__init__(*args, **kwargs)
+
+        self.fields['owner'].choices = self.get_owner_choices()
+
 
 class ConvertStockItemForm(HelperForm):
     """

InvenTree/stock/migrations/0057_auto_20210107_1904.py

@@ -1,27 +0,0 @@
-# Generated by Django 3.0.7 on 2021-01-07 19:04
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('auth', '0011_update_proxy_permissions'),
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('stock', '0056_stockitem_expiry_date'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='stockitem',
-            name='owner',
-            field=models.ForeignKey(blank=True, help_text='Owner (User)', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='owner_stockitems', to=settings.AUTH_USER_MODEL),
-        ),
-        migrations.AddField(
-            model_name='stocklocation',
-            name='owner',
-            field=models.ForeignKey(blank=True, help_text='Owner (Group)', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='owner_stocklocations', to='auth.Group'),
-        ),
-    ]

InvenTree/stock/models.py

@@ -19,6 +19,8 @@ from django.core.validators import MinValueValidator
 from django.contrib.auth.models import User, Group
 from django.db.models.signals import pre_delete
 from django.dispatch import receiver
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
 
 from markdownx.models import MarkdownxField
 
@@ -47,9 +49,28 @@ class StockLocation(InvenTreeTree):
     Stock locations can be heirarchical as required
     """
 
-    owner = models.ForeignKey(Group, on_delete=models.SET_NULL, blank=True, null=True,
+    owner_type = models.ForeignKey(ContentType, on_delete=models.CASCADE, null=True, blank=True)
-                              help_text='Owner (Group)',
+    owner_id = models.PositiveIntegerField(null=True, blank=True)
-                              related_name='owner_stocklocations')
+    owner = GenericForeignKey('owner_type', 'owner_id')
+
+    def save(self, *args, **kwargs):
+        """ Custom save method to process StockLocation owner """
+    
+        # Extract owner
+        try:
+            owner = kwargs.pop('owner')
+        except KeyError:
+            owner = ''
+
+        # Set the owner
+        if owner.startswith('group'):
+            group_name = owner.replace('group_', '')
+            self.owner = Group.objects.get(name=group_name)
+        elif owner.startswith('user'):
+            user_name = owner.replace('user_', '')
+            self.owner = User.objects.get(username=user_name)
+
+        super(StockLocation, self).save(*args, **kwargs)
 
     def get_absolute_url(self):
         return reverse('stock-location-detail', kwargs={'pk': self.id})

InvenTree/stock/views.py

@@ -11,7 +11,7 @@ from django.views.generic import DetailView, ListView, UpdateView
 from django.forms.models import model_to_dict
 from django.forms import HiddenInput
 from django.urls import reverse
-from django.contrib.auth.models import User
+from django.contrib.auth.models import User, Group
 
 from django.utils.translation import ugettext as _
 
@@ -125,6 +125,24 @@ class StockLocationEdit(AjaxUpdateView):
     ajax_form_title = _('Edit Stock Location')
     role_required = 'stock.change'
 
+    def get_owner_initial(self):
+
+        initial = ''
+
+        location = self.get_object()
+
+        owner = location.owner
+
+        if owner:
+            if type(owner) is Group:
+                group_name = owner.name
+                initial = f'group_{group_name}'
+            elif type(owner) is User:
+                user_name = owner.username
+                initial = f'user_{user_name}'
+
+        return initial
+
     def get_form(self):
         """ Customize form data for StockLocation editing.
 
@@ -144,9 +162,12 @@ class StockLocationEdit(AjaxUpdateView):
 
         # Is ownership control enabled?
         stock_ownership_control = InvenTreeSetting.get_setting('STOCK_OWNERSHIP_CONTROL')
+        owner_initial = self.get_owner_initial()
+
         if not stock_ownership_control:
             form.fields['owner'].widget = HiddenInput()
         else:
+            form.fields['owner'].initial = owner_initial
             if location.parent:
                 form.fields['owner'].initial = location.parent.owner
             if not self.request.user.is_superuser:
@@ -159,13 +180,21 @@ class StockLocationEdit(AjaxUpdateView):
             - update all children's owners with location's owner
         """
 
-        self.object = form.save()
+        self.object = form.save(commit=False)
+
+        # parent = form.cleaned_data.get('parent', None)
         
         stock_ownership_control = InvenTreeSetting.get_setting('STOCK_OWNERSHIP_CONTROL')
-        if self.object.get_children() and stock_ownership_control:
+        if stock_ownership_control:
+            owner = form.cleaned_data.get('owner', None)
+            self.object.save(**{'owner': owner})
+
+            if self.object.get_children():
                 for child in self.object.get_children():
                     child.owner = self.object.owner
                     child.save()
+        else:
+            self.object.save()
 
         return self.object
 
@@ -1463,10 +1492,13 @@ class StockLocationCreate(AjaxCreateView):
         self.object = form.save(commit=False)
 
         parent = form.cleaned_data.get('parent', None)
+        owner = form.cleaned_data.get('owner', None)
+
         if parent:
             self.object.owner = parent.owner
-        
             self.object.save()
+        else:
+            self.object.save(**{'owner': owner})
 
         return self.object