feat: Add tags_count to ContainerMetadata (#36883)

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

@@ -48,10 +48,7 @@ class LibraryXBlockMetadata(PublishableItem):
         tags = get_object_tag_counts(str(usage_key), count_implicit=True)
 
         return cls(
-            usage_key=library_component_usage_key(
-                library_key,
-                component,
-            ),
+            usage_key=usage_key,
             display_name=draft.title,
             created=component.created,
             modified=draft.created,

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

@@ -26,6 +26,7 @@ from openedx_events.content_authoring.signals import (
 from openedx_learning.api import authoring as authoring_api
 from openedx_learning.api.authoring_models import Container, ContainerVersion, Component
 from openedx.core.djangoapps.content_libraries.api.collections import library_collection_locator
+from openedx.core.djangoapps.content_tagging.api import get_object_tag_counts
 
 from openedx.core.djangoapps.xblock.api import get_component_from_usage_key
 
@@ -132,6 +133,7 @@ class ContainerMetadata(PublishableItem):
             last_draft_created_by = draft.publishable_entity_version.created_by.username
         else:
             last_draft_created_by = ""
+        tags = get_object_tag_counts(str(container_key), count_implicit=True)
 
         return cls(
             container_key=container_key,
@@ -148,6 +150,7 @@ class ContainerMetadata(PublishableItem):
             last_draft_created=last_draft_created,
             last_draft_created_by=last_draft_created_by,
             has_unpublished_changes=authoring_api.contains_unpublished_changes(container.pk),
+            tags_count=tags.get(str(container_key), 0),
             collections=associated_collections or [],
         )
 

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

@@ -137,7 +137,10 @@ class LibraryContainerChildrenView(GenericAPIView):
 
     @convert_exceptions
     @swagger_auto_schema(
-        responses={200: list[serializers.LibraryXBlockMetadataSerializer]}
+        responses={
+            200: list[serializers.LibraryXBlockMetadataSerializer]
+            | list[serializers.LibraryContainerMetadataSerializer]
+        }
     )
     def get(self, request, container_key: LibraryContainerLocator):
         """

openedx/core/djangoapps/content_libraries/tests/test_containers.py

@@ -11,6 +11,7 @@ from opaque_keys.edx.locator import LibraryLocatorV2
 from common.djangoapps.student.tests.factories import UserFactory
 from openedx.core.djangoapps.content_libraries import api
 from openedx.core.djangoapps.content_libraries.tests.base import ContentLibrariesRestApiTest
+from openedx.core.djangoapps.content_tagging import api as tagging_api
 from openedx.core.djangolib.testing.utils import skip_unless_cms
 
 
@@ -45,6 +46,13 @@ class ContainersTestCase(ContentLibrariesRestApiTest):
         )
         self.lib_key = LibraryLocatorV2.from_string(self.lib["id"])
 
+        self.taxonomy = tagging_api.create_taxonomy('New Taxonomy')
+        tagging_api.set_taxonomy_orgs(self.taxonomy, all_orgs=True)
+        tagging_api.add_tag_to_taxonomy(self.taxonomy, "one")
+        tagging_api.add_tag_to_taxonomy(self.taxonomy, "two")
+        tagging_api.add_tag_to_taxonomy(self.taxonomy, "three")
+        tagging_api.add_tag_to_taxonomy(self.taxonomy, "four")
+
         # Create containers
         with freeze_time(self.create_date):
             # Unit
@@ -543,6 +551,24 @@ class ContainersTestCase(ContentLibrariesRestApiTest):
 
         self.assertDictContainsEntries(new_container_data, expected_data)
 
+    @ddt.data(
+        "unit",
+        "subsection",
+        "section",
+    )
+    def test_tag_containers(self, container_type) -> None:
+        container = getattr(self, container_type)
+
+        assert container["tags_count"] == 0
+        tagging_api.tag_object(
+            container["id"],
+            self.taxonomy,
+            ['one', 'three', 'four'],
+        )
+
+        new_container_data = self._get_container(container["id"])
+        assert new_container_data["tags_count"] == 3
+
     def test_container_collections(self) -> None:
         # Create a collection
         col1 = api.create_library_collection(