fix: refactor index_together to indexes for Django 5.2 support (#36693)

Author: UsamaSadiq

openedx/core/djangoapps/content/learning_sequences/migrations/0017_rename_coursesection_course_context_ordering_course_context_ordering_idx.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.20 on 2025-05-09 14:28
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('learning_sequences', '0016_through_model_for_user_partition_groups_2'),
+    ]
+
+    operations = [
+        migrations.RenameIndex(
+            model_name='coursesection',
+            new_name='course_context_ordering_idx',
+            old_fields=('course_context', 'ordering'),
+        ),
+    ]

openedx/core/djangoapps/content/learning_sequences/models.py

@@ -228,8 +228,8 @@ class Meta:
         unique_together = [
             ['course_context', 'usage_key'],
         ]
-        index_together = [
-            ['course_context', 'ordering'],
+        indexes = [
+            models.Index(fields=['course_context', 'ordering'], name='course_context_ordering_idx'),
         ]