refactor: Rename LearningPackage.key to package_ref for openedx-core 0.43.0

Updates callers of get_learning_package_by_key (renamed to
get_learning_package_by_ref), create_learning_package, and
update_learning_package to use the new package_ref kwarg, and
switches .key attribute reads to .package_ref.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: kdmccormick

cms/djangoapps/modulestore_migrator/api/read_api.py

@@ -209,7 +209,7 @@ def _block_migration_success(
     """
     Build an instance of the migration success dataclass
     """
-    target_library_key = LibraryLocatorV2.from_string(target.learning_package.key)
+    target_library_key = LibraryLocatorV2.from_string(target.learning_package.package_ref)
     target_key: LibraryUsageLocatorV2 | LibraryContainerLocator
     if hasattr(target, "component"):
         target_key = library_component_usage_key(target_library_key, target.component)

openedx/core/djangoapps/content/search/tests/test_api.py

@@ -188,7 +188,7 @@ def setUp(self) -> None:
         tagging_api.add_tag_to_taxonomy(self.taxonomyB, "four")
 
         # Create a collection:
-        self.learning_package = content_api.get_learning_package_by_key(self.library.key)
+        self.learning_package = content_api.get_learning_package_by_ref(str(self.library.key))
         with freeze_time(self.created_date):
             self.collection = content_api.create_collection(
                 learning_package_id=self.learning_package.id,

openedx/core/djangoapps/content_libraries/api/libraries.py

@@ -461,14 +461,14 @@ def create_library(
                 # and also update its title/description in case they differ.
                 content_api.update_learning_package(
                     learning_package.id,
-                    key=str(ref.library_key),
+                    package_ref=str(ref.library_key),
                     title=title,
                     description=description,
                 )
             else:
                 # We have to generate a new LearningPackage for this library.
                 learning_package = content_api.create_learning_package(
-                    key=str(ref.library_key),
+                    package_ref=str(ref.library_key),
                     title=title,
                     description=description,
                 )

openedx/core/djangoapps/content_libraries/rest_api/blocks.py

@@ -379,7 +379,7 @@ def get_component_version_asset(request, component_version_uuid, asset_path):
 
     # Permissions check...
     learning_package = component_version.component.learning_package
-    library_key = LibraryLocatorV2.from_string(learning_package.key)
+    library_key = LibraryLocatorV2.from_string(learning_package.package_ref)
     api.require_permission_for_library_key(
         library_key, request.user, permissions.CAN_VIEW_THIS_CONTENT_LIBRARY,
     )

openedx/core/djangoapps/xblock/api.py

@@ -199,7 +199,7 @@ def get_component_from_usage_key(usage_key: UsageKeyV2) -> Component:
     This is a lower-level function that will return a Component even if there is
     no current draft version of that Component (because it's been soft-deleted).
     """
-    learning_package = content_api.get_learning_package_by_key(
+    learning_package = content_api.get_learning_package_by_ref(
         str(usage_key.context_key)
     )
     return content_api.get_component_by_key(

openedx/core/djangoapps/xblock/runtime/openedx_content_runtime.py

@@ -326,7 +326,7 @@ def _get_component_from_usage_key(self, usage_key):
         TODO: This is the third place where we're implementing this. Figure out
         where the definitive place should be and have everything else call that.
         """
-        learning_package = content_api.get_learning_package_by_key(str(usage_key.lib_key))
+        learning_package = content_api.get_learning_package_by_ref(str(usage_key.lib_key))
         try:
             component = content_api.get_component_by_key(
                 learning_package.id,