Add PostgreSQL full-text search support and optimize indexes for DropCampaign and related models

twitch/migrations/0009_postgresql_optimizations_fixed.py

@@ -0,0 +1,52 @@
+# Generated by Django 5.2.5 on 2025-09-04 22:22
+
+import django.contrib.postgres.indexes
+import django.contrib.postgres.search
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('twitch', '0008_rename_created_at_dropcampaign_added_at_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='dropcampaign',
+            name='search_vector',
+            field=django.contrib.postgres.search.SearchVectorField(blank=True, null=True),
+        ),
+        migrations.AddIndex(
+            model_name='dropbenefit',
+            index=models.Index(condition=models.Q(('is_ios_available', True)), fields=['is_ios_available'], name='benefit_ios_available_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='dropcampaign',
+            index=django.contrib.postgres.indexes.GinIndex(fields=['search_vector'], name='campaign_search_vector_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='dropcampaign',
+            index=models.Index(condition=models.Q(('end_at__isnull', False), ('start_at__isnull', False)), fields=['start_at', 'end_at'], name='campaign_active_partial_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='game',
+            index=models.Index(condition=models.Q(('owner__isnull', False)), fields=['owner'], name='game_owner_partial_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='timebaseddrop',
+            index=models.Index(fields=['campaign', 'start_at', 'required_minutes_watched'], name='twitch_time_campaig_4cc3b7_idx'),
+        ),
+        migrations.AddConstraint(
+            model_name='dropcampaign',
+            constraint=models.CheckConstraint(condition=models.Q(('start_at__isnull', True), ('end_at__isnull', True), ('end_at__gt', models.F('start_at')), _connector='OR'), name='campaign_valid_date_range'),
+        ),
+        migrations.AddConstraint(
+            model_name='timebaseddrop',
+            constraint=models.CheckConstraint(condition=models.Q(('start_at__isnull', True), ('end_at__isnull', True), ('end_at__gt', models.F('start_at')), _connector='OR'), name='drop_valid_date_range'),
+        ),
+        migrations.AddConstraint(
+            model_name='timebaseddrop',
+            constraint=models.CheckConstraint(condition=models.Q(('required_minutes_watched__isnull', True), ('required_minutes_watched__gt', 0), _connector='OR'), name='drop_positive_minutes'),
+        ),
+    ]