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

zerver/migrations/0516_fix_confirmation_preregistrationusers.py

@@ -0,0 +1,70 @@
+# Generated by Django 5.0.5 on 2024-04-29 19:24
+
+from django.db import migrations
+
+TOO_MANY_CONFIRMATIONS = """
+DELETE FROM confirmation_confirmation
+WHERE  id IN (WITH too_many_confirmations
+                   AS (SELECT object_id,
+                              MIN(confirmation_confirmation.id) AS exclude_id,
+                              COUNT(*)
+                       FROM   confirmation_confirmation
+                       JOIN   zerver_preregistrationuser
+                       ON     content_type_id = (SELECT id
+                                                 FROM   django_content_type
+                                                 WHERE  app_label = 'zerver'
+                                                 AND    model = 'preregistrationuser')
+                       AND    object_id = zerver_preregistrationuser.id
+                       WHERE  referred_by_id IS NOT NULL
+                       GROUP  BY object_id
+                       HAVING COUNT(*) > 1)
+              SELECT id
+               FROM  confirmation_confirmation
+                     JOIN too_many_confirmations
+                       ON too_many_confirmations.object_id = confirmation_confirmation.object_id
+                       AND content_type_id = (SELECT id
+                                              FROM   django_content_type
+                                              WHERE  app_label = 'zerver'
+                                              AND    model = 'preregistrationuser')
+                       AND id != exclude_id
+)
+"""
+
+NO_CONFIRMATIONS_TEMP_TABLE = """
+CREATE TEMPORARY TABLE zerver_0516_no_confirmations AS (
+  SELECT id FROM zerver_preregistrationuser
+   WHERE NOT EXISTS(SELECT 1
+                      FROM confirmation_confirmation
+                     WHERE content_type_id = (SELECT id
+                                              FROM   django_content_type
+                                              WHERE  app_label = 'zerver'
+                                              AND    model = 'preregistrationuser')
+                       AND object_id = zerver_preregistrationuser.id)
+     AND referred_by_id IS NOT NULL
+)
+"""
+
+
+class Migration(migrations.Migration):
+    atomic = False
+
+    dependencies = [
+        (
+            "zerver",
+            "0515_rename_named_group_can_mention_group_namedusergroup_can_mention_group_and_more",
+        ),
+    ]
+
+    operations = [
+        migrations.RunSQL(TOO_MANY_CONFIRMATIONS, elidable=True),
+        migrations.RunSQL(NO_CONFIRMATIONS_TEMP_TABLE, elidable=True),
+        migrations.RunSQL(
+            "DELETE FROM zerver_preregistrationuser_streams WHERE preregistrationuser_id IN (SELECT id FROM zerver_0516_no_confirmations)",
+            elidable=True,
+        ),
+        migrations.RunSQL(
+            "DELETE FROM zerver_preregistrationuser WHERE id IN (SELECT id FROM zerver_0516_no_confirmations)",
+            elidable=True,
+        ),
+        migrations.RunSQL("DROP TABLE zerver_0516_no_confirmations", elidable=True),
+    ]