fix(squash): renumber migration after component squash

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kdmccormick

src/openedx_content/migrations/0010_add_container_code.py

@@ -0,0 +1,88 @@
+import re
+
+import django.core.validators
+import django.db.models.deletion
+from django.db import migrations, models
+
+import openedx_django_lib.fields
+
+
+def backfill_container_code(apps, schema_editor):
+    """
+    Backfill container_code and learning_package from publishable_entity.
+
+    For existing containers, container_code is set to the entity key (the
+    only identifier available at this point). Future containers will have
+    container_code set by the caller.
+    """
+    Container = apps.get_model("openedx_content", "Container")
+    for container in Container.objects.select_related("publishable_entity__learning_package").all():
+        container.learning_package = container.publishable_entity.learning_package
+        container.container_code = container.publishable_entity.key
+        container.save(update_fields=["learning_package", "container_code"])
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("openedx_content", "0009_rename_component_local_key_to_component_code"),
+    ]
+
+    operations = [
+        # 1. Add learning_package FK (nullable initially for backfill)
+        migrations.AddField(
+            model_name="container",
+            name="learning_package",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="openedx_content.learningpackage",
+            ),
+        ),
+        # 2. Add container_code (nullable initially for backfill)
+        migrations.AddField(
+            model_name="container",
+            name="container_code",
+            field=openedx_django_lib.fields.MultiCollationCharField(
+                db_collations={"mysql": "utf8mb4_bin", "sqlite": "BINARY"},
+                max_length=255,
+                null=True,
+            ),
+        ),
+        # 3. Backfill both fields from publishable_entity
+        migrations.RunPython(backfill_container_code, migrations.RunPython.noop),
+        # 4. Make both fields non-nullable and add regex validation to container_code
+        migrations.AlterField(
+            model_name="container",
+            name="learning_package",
+            field=models.ForeignKey(
+                null=False,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="openedx_content.learningpackage",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="container",
+            name="container_code",
+            field=openedx_django_lib.fields.MultiCollationCharField(
+                db_collations={"mysql": "utf8mb4_bin", "sqlite": "BINARY"},
+                max_length=255,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        re.compile(r"^[a-zA-Z0-9_.-]+\Z"),
+                        "Enter a valid \"code name\" consisting of letters, numbers, "
+                        "underscores, hyphens, or periods.",
+                        "invalid",
+                    ),
+                ],
+            ),
+        ),
+        # 5. Add uniqueness constraint
+        migrations.AddConstraint(
+            model_name="container",
+            constraint=models.UniqueConstraint(
+                fields=["learning_package", "container_code"],
+                name="oel_container_uniq_lp_cc",
+            ),
+        ),
+    ]