fix events migration files

Author: FuzzyGrim

src/events/migrations/0008_delete_tv_events.py

@@ -1,10 +1,22 @@
 from django.db import migrations
 
+def delete_tv_events(apps, schema_editor):
+    """Delete all events where the item's media_type is 'tv'."""
+    Event = apps.get_model('events', 'Event')
+    Item = apps.get_model('app', 'Item')
+
+    # Get all items with media_type 'tv'
+    tv_items = Item.objects.filter(media_type='tv')
+
+    # Delete all events associated with these items
+    Event.objects.filter(item__in=tv_items).delete()
+
 class Migration(migrations.Migration):
 
     dependencies = [
         ('events', '0007_event_notification_sent'),
     ]
 
     operations = [
+        migrations.RunPython(delete_tv_events, migrations.RunPython.noop),
     ]

src/events/migrations/0009_fix_movie_episode_number.py

@@ -2,17 +2,6 @@
 
 from django.db import migrations
 
-def fix_movie_events(apps, schema_editor):
-    Event = apps.get_model('events', 'Event')
-
-    # Get all movie events with episode_number
-    movie_events = Event.objects.filter(
-        item__media_type='movie',
-        episode_number__isnull=False
-    )
-
-    # Update episode_number to None
-    movie_events.update(episode_number=None)
 
 class Migration(migrations.Migration):
 
@@ -21,5 +10,4 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
-        migrations.RunPython(fix_movie_events),
     ]

src/events/migrations/0012_remove_event_unique_item_episode_and_more.py

@@ -0,0 +1,30 @@
+# Generated by Django 5.2 on 2025-04-23 15:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0038_comic_historicalcomic_and_more'),
+        ('events', '0011_remove_event_unique_item_episode_and_more'),
+    ]
+
+    operations = [
+        migrations.RemoveConstraint(
+            model_name='event',
+            name='unique_item_episode',
+        ),
+        migrations.RemoveConstraint(
+            model_name='event',
+            name='unique_item_null_episode',
+        ),
+        migrations.AddConstraint(
+            model_name='event',
+            constraint=models.UniqueConstraint(fields=('item', 'content_number'), name='unique_item_content_number'),
+        ),
+        migrations.AddConstraint(
+            model_name='event',
+            constraint=models.UniqueConstraint(condition=models.Q(('content_number__isnull', True)), fields=('item',), name='unique_item_null_content_number'),
+        ),
+    ]

src/events/models.py

@@ -130,12 +130,12 @@ class Meta:
         constraints = [
             UniqueConstraint(
                 fields=["item", "content_number"],
-                name="unique_item_episode",
+                name="unique_item_content_number",
             ),
             UniqueConstraint(
                 fields=["item"],
                 condition=Q(content_number__isnull=True),
-                name="unique_item_null_episode",
+                name="unique_item_null_content_number",
             ),
         ]