feat: Add new publish field on container search document (#36551)

* Added publish_display_name and last_published on container search document.
* This change is used in feat: Add unit from library in course [FC-0083] frontend-app-authoring#1829 to show only published units in the unit picker, also to show the published_display_name in the picker, and avoid empty titles.
* Which edX user roles will this change impact? "Developer".

openedx/core/djangoapps/content/search/documents.py

@@ -572,6 +572,7 @@ def searchable_doc_for_container(
         Fields.block_id: container_key.container_id,  # Field name isn't exact but this is the closest match
         Fields.access_id: _meili_access_id_from_context_key(container_key.library_key),
         Fields.publish_status: PublishStatus.never,
+        Fields.last_published: None,
     }
 
     try:
@@ -593,6 +594,7 @@ def searchable_doc_for_container(
         Fields.modified: container.modified.timestamp(),
         Fields.num_children: draft_num_children,
         Fields.publish_status: publish_status,
+        Fields.last_published: container.last_published.timestamp() if container.last_published else None,
     })
     library = lib_api.get_library(container_key.library_key)
     if library:
@@ -601,8 +603,8 @@ def searchable_doc_for_container(
     if container.published_version_num is not None:
         published_num_children = lib_api.get_container_children_count(container_key, published=True)
         doc[Fields.published] = {
-            # Fields.published_display_name: container_published.title, TODO: set the published title
             Fields.published_num_children: published_num_children,
+            Fields.published_display_name: container.published_display_name,
         }
 
     return doc

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

@@ -235,6 +235,7 @@ class TestSearchApi(ModuleStoreTestCase):
             "org": "org1",
             "created": created_date.timestamp(),
             "modified": created_date.timestamp(),
+            "last_published": None,
             "access_id": lib_access.id,
             "breadcrumbs": [{"display_name": "Library"}],
             # "published" is not set since we haven't published it yet

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

@@ -534,6 +534,7 @@ class StudioDocumentsTest(SharedModuleStoreTestCase):
             "breadcrumbs": [{"display_name": "some content_library"}],
             "created": 1680674828.0,
             "modified": 1680674828.0,
+            "last_published": None,
             "tags": {
                 "taxonomy": ["Difficulty"],
                 "level0": ["Difficulty > Normal"]
@@ -552,7 +553,7 @@ class StudioDocumentsTest(SharedModuleStoreTestCase):
                 [self.library_block.usage_key],
                 user_id=None,
             )
-        library_api.publish_changes(self.library.key)
+            library_api.publish_changes(self.library.key)
 
         doc = searchable_doc_for_container(self.container.container_key)
         doc.update(searchable_doc_tags(self.container.container_key))
@@ -573,11 +574,15 @@ class StudioDocumentsTest(SharedModuleStoreTestCase):
             "breadcrumbs": [{"display_name": "some content_library"}],
             "created": 1680674828.0,
             "modified": 1680674828.0,
+            "last_published": 1680674828.0,
             "tags": {
                 "taxonomy": ["Difficulty"],
                 "level0": ["Difficulty > Normal"]
             },
-            "published": {"num_children": 1},
+            "published": {
+                "num_children": 1,
+                "display_name": "A Unit in the Search Index",
+            },
         }
 
     def test_published_container_with_changes(self):
@@ -589,7 +594,8 @@ class StudioDocumentsTest(SharedModuleStoreTestCase):
             [self.library_block.usage_key],
             user_id=None,
         )
-        library_api.publish_changes(self.library.key)
+        with freeze_time(self.container.created):
+            library_api.publish_changes(self.library.key)
         block_2 = library_api.create_library_block(
             self.library.key,
             "html",
@@ -624,11 +630,15 @@ class StudioDocumentsTest(SharedModuleStoreTestCase):
             "breadcrumbs": [{"display_name": "some content_library"}],
             "created": 1680674828.0,
             "modified": 1680674828.0,
+            "last_published": 1680674828.0,
             "tags": {
                 "taxonomy": ["Difficulty"],
                 "level0": ["Difficulty > Normal"]
             },
-            "published": {"num_children": 1},
+            "published": {
+                "num_children": 1,
+                "display_name": "A Unit in the Search Index",
+            },
         }
 
     def test_mathjax_plain_text_conversion_for_search(self):

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

@@ -70,6 +70,7 @@ class ContainerMetadata(PublishableItem):
     """
     container_key: LibraryContainerLocator
     container_type: ContainerType
+    published_display_name: str | None
 
     @classmethod
     def from_container(cls, library_key, container: Container, associated_collections=None):
@@ -103,6 +104,7 @@ class ContainerMetadata(PublishableItem):
             modified=draft.created,
             draft_version_num=draft.version_num,
             published_version_num=published.version_num if published else None,
+            published_display_name=published.title if published else None,
             last_published=None if last_publish_log is None else last_publish_log.published_at,
             published_by=published_by,
             last_draft_created=last_draft_created,