Cleanup models

InvenTree/stock/migrations/0073_alter_stockitem_belongs_to.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.10 on 2021-12-20 21:49
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0072_remove_stockitem_scheduled_for_deletion'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stockitem',
+            name='belongs_to',
+            field=models.ForeignKey(blank=True, help_text='Is this item installed in another item?', null=True, on_delete=django.db.models.deletion.CASCADE, related_name='installed_parts', to='stock.stockitem', verbose_name='Installed In'),
+        ),
+    ]

InvenTree/stock/migrations/0073_alter_stockitem_parent.py

@@ -1,20 +0,0 @@
-# Generated by Django 3.2.10 on 2021-12-20 13:54
-
-from django.db import migrations
-import django.db.models.deletion
-import mptt.fields
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0072_remove_stockitem_scheduled_for_deletion'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='parent',
-            field=mptt.fields.TreeForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='children', to='stock.stockitem', verbose_name='Parent Stock Item'),
-        ),
-    ]