snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

zilencer/migrations/0067_remotepushdevicetoken_apns_case_insensitive.py

@@ -0,0 +1,141 @@
+import django.db.models.functions.text
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("zilencer", "0066_alter_remotepushdevice_token_kind"),
+    ]
+
+    operations = [
+        # This parallels zerver/migrations/0740 but must account for
+        # the user_id / user_uuid split.
+        migrations.RunSQL(
+            """
+            WITH dups AS (
+              SELECT server_id, user_id, kind, LOWER(token) AS token, MAX(last_updated) AS max_last_updated
+                FROM zilencer_remotepushdevicetoken
+               WHERE kind = 1
+                 AND user_uuid IS NULL
+               GROUP BY server_id, user_id, kind, LOWER(token)
+              HAVING COUNT(*) > 1
+            )
+            UPDATE zilencer_remotepushdevicetoken
+               SET last_updated = dups.max_last_updated
+              FROM dups
+             WHERE zilencer_remotepushdevicetoken.server_id = dups.server_id
+               AND zilencer_remotepushdevicetoken.user_id = dups.user_id
+               AND zilencer_remotepushdevicetoken.user_uuid IS NULL
+               AND zilencer_remotepushdevicetoken.kind = dups.kind
+               AND LOWER(zilencer_remotepushdevicetoken.token) = dups.token
+            """
+        ),
+        migrations.RunSQL(
+            """
+            WITH dups AS (
+              SELECT server_id, user_id, kind, LOWER(token) AS token, MIN(id) AS min_id
+                FROM zilencer_remotepushdevicetoken
+               WHERE kind = 1
+                 AND user_uuid IS NULL
+               GROUP BY server_id, user_id, kind, LOWER(token)
+              HAVING COUNT(*) > 1
+            )
+            DELETE FROM zilencer_remotepushdevicetoken
+             USING dups
+             WHERE zilencer_remotepushdevicetoken.server_id = dups.server_id
+               AND zilencer_remotepushdevicetoken.user_id = dups.user_id
+               AND zilencer_remotepushdevicetoken.user_uuid IS NULL
+               AND zilencer_remotepushdevicetoken.kind = dups.kind
+               AND LOWER(zilencer_remotepushdevicetoken.token) = dups.token
+               AND zilencer_remotepushdevicetoken.id != dups.min_id
+            """
+        ),
+        migrations.AddConstraint(
+            model_name="remotepushdevicetoken",
+            constraint=models.UniqueConstraint(
+                models.F("server_id"),
+                models.F("user_id"),
+                models.F("kind"),
+                django.db.models.functions.text.Lower(models.F("token")),
+                condition=models.Q(("kind", 1)),
+                name="zilencer_remotepushdevicetoken_apns_server_user_id_kind_token",
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="remotepushdevicetoken",
+            constraint=models.UniqueConstraint(
+                models.F("server_id"),
+                models.F("user_id"),
+                models.F("kind"),
+                models.F("token"),
+                condition=models.Q(("kind", 2)),
+                name="zilencer_remotepushdevicetoken_fcm_server_user_id_kind_token",
+            ),
+        ),
+        migrations.RunSQL(
+            """
+            WITH dups AS (
+              SELECT server_id, user_uuid, kind, LOWER(token) AS token, MAX(last_updated) AS max_last_updated
+                FROM zilencer_remotepushdevicetoken
+               WHERE kind = 1
+                 AND user_id IS NULL
+               GROUP BY server_id, user_uuid, kind, LOWER(token)
+              HAVING COUNT(*) > 1
+            )
+            UPDATE zilencer_remotepushdevicetoken
+               SET last_updated = dups.max_last_updated
+              FROM dups
+             WHERE zilencer_remotepushdevicetoken.server_id = dups.server_id
+               AND zilencer_remotepushdevicetoken.user_uuid = dups.user_uuid
+               AND zilencer_remotepushdevicetoken.user_id IS NULL
+               AND zilencer_remotepushdevicetoken.kind = dups.kind
+               AND LOWER(zilencer_remotepushdevicetoken.token) = dups.token
+            """
+        ),
+        migrations.RunSQL(
+            """
+            WITH dups AS (
+              SELECT server_id, user_uuid, kind, LOWER(token) AS token, MIN(id) AS min_id
+                FROM zilencer_remotepushdevicetoken
+               WHERE kind = 1
+                 AND user_id IS NULL
+               GROUP BY server_id, user_uuid, kind, LOWER(token)
+              HAVING COUNT(*) > 1
+            )
+            DELETE FROM zilencer_remotepushdevicetoken
+             USING dups
+             WHERE zilencer_remotepushdevicetoken.server_id = dups.server_id
+               AND zilencer_remotepushdevicetoken.user_uuid = dups.user_uuid
+               AND zilencer_remotepushdevicetoken.user_id IS NULL
+               AND zilencer_remotepushdevicetoken.kind = dups.kind
+               AND LOWER(zilencer_remotepushdevicetoken.token) = dups.token
+               AND zilencer_remotepushdevicetoken.id != dups.min_id
+            """
+        ),
+        migrations.AddConstraint(
+            model_name="remotepushdevicetoken",
+            constraint=models.UniqueConstraint(
+                models.F("server_id"),
+                models.F("user_uuid"),
+                models.F("kind"),
+                django.db.models.functions.text.Lower(models.F("token")),
+                condition=models.Q(("kind", 1)),
+                name="zilencer_remotepushdevicetoken_apns_server_uuid_kind_token",
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="remotepushdevicetoken",
+            constraint=models.UniqueConstraint(
+                models.F("server_id"),
+                models.F("user_uuid"),
+                models.F("kind"),
+                models.F("token"),
+                condition=models.Q(("kind", 2)),
+                name="zilencer_remotepushdevicetoken_fcm_server_uuid_kind_token",
+            ),
+        ),
+        migrations.AlterUniqueTogether(
+            name="remotepushdevicetoken",
+            unique_together=set(),
+        ),
+    ]