Merge branch '663-skip-unaccent-if-present' into 'develop'

Fix #663: Do not try to create unaccent extension if it's already present

Closes #663

See merge request funkwhale/funkwhale!549

api/funkwhale_api/common/migrations/0001_initial.py

@@ -3,8 +3,20 @@ from django.db import migrations
 from django.contrib.postgres.operations import UnaccentExtension
 
 
+class CustomUnaccentExtension(UnaccentExtension):
+    def database_forwards(self, app_label, schema_editor, from_state, to_state):
+        check_sql = "SELECT 1 FROM pg_extension WHERE extname = 'unaccent'"
+        with schema_editor.connection.cursor() as cursor:
+            cursor.execute(check_sql)
+            result = cursor.fetchall()
+
+        if result:
+            return
+        return super().database_forwards(app_label, schema_editor, from_state, to_state)
+
+
 class Migration(migrations.Migration):
 
     dependencies = []
 
-    operations = [UnaccentExtension()]
+    operations = [CustomUnaccentExtension()]

changes/changelog.d/663.bugfix

@@ -0,0 +1 @@
+Do not try to create unaccent extension if it's already present (#663)