fix(squash): squash component migrations into single migration

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

Author: kdmccormick

src/openedx_content/migrations/0009_rename_component_local_key_to_component_code.py

@@ -0,0 +1,66 @@
+"""
+Rename Component.local_key -> Component.component_code and change from key_field to code_field.
+"""
+import re
+
+import django.core.validators
+from django.db import migrations, models
+
+import openedx_django_lib.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('openedx_content', '0008_rename_collection_key_to_collection_code'),
+    ]
+
+    operations = [
+        # Drop old constraint and index (reference the old field name).
+        migrations.RemoveConstraint(
+            model_name='component',
+            name='oel_component_uniq_lc_ct_lk',
+        ),
+        migrations.RemoveIndex(
+            model_name='component',
+            name='oel_component_idx_ct_lk',
+        ),
+        # Rename the column.
+        migrations.RenameField(
+            model_name='component',
+            old_name='local_key',
+            new_name='component_code',
+        ),
+        # Change from key_field (max_length=500, no validator) to code_field
+        # (max_length=255, with regex validator).
+        migrations.AlterField(
+            model_name='component',
+            name='component_code',
+            field=openedx_django_lib.fields.MultiCollationCharField(
+                db_collations={'mysql': 'utf8mb4_bin', 'sqlite': 'BINARY'},
+                max_length=255,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        re.compile('^[a-zA-Z0-9_.-]+\\Z'),
+                        'Enter a valid "code name" consisting of letters, numbers, underscores, hyphens, or periods.',
+                        'invalid',
+                    ),
+                ],
+            ),
+        ),
+        # Re-add constraint and index with the new field name.
+        migrations.AddConstraint(
+            model_name='component',
+            constraint=models.UniqueConstraint(
+                fields=('learning_package', 'component_type', 'component_code'),
+                name='oel_component_uniq_lc_ct_lk',
+            ),
+        ),
+        migrations.AddIndex(
+            model_name='component',
+            index=models.Index(
+                fields=['component_type', 'component_code'],
+                name='oel_component_idx_ct_lk',
+            ),
+        ),
+    ]