feat!: Remove outdated Libraries Relaunch cruft

The V2 libraries project had a few past iterations which were never
launched. This commit cleans up pieces from those which we don't need
for the real Libraries Relaunch MVP in Sumac:

* Remove ENABLE_LIBRARY_AUTHORING_MICROFRONTEND,
  LIBRARY_AUTHORING_FRONTEND_URL, and
  REDIRECT_TO_LIBRARY_AUTHORING_MICROFRONTEND, all of which are obsolete
  now that library authoring has been merged into
  https://github.com/openedx/frontend-app-authoring.
  More details on the new Content Libraries configuration settings are
  here: openedx/frontend-app-authoring#1334

* Remove dangling support for syncing V2 (learning core-backed) library
  content using the LibraryContentBlock. This code was all based on an
  older understanding of V2 Content Libraries, where the libraries were
  smaller and versioned as a whole rather then versioned by-item.
  Reference to V2 libraries will be done on a per-block basis using
  the upstream/downstream system, described here:
  https://github.com/openedx/edx-platform/blob/master/docs/decisions/0020-upstream-downstream.rst
  It's important that we remove this support now so that OLX course
  authors don't stuble upon it and use it, which would be buggy and
  complicate future migrations.

* Remove the "mode" parameter from LibraryContentBlock. The only
  supported mode was and is "random". We will not be adding any further
  modes. Going forward for V2, we will have an ItemBank block for
  randomizing items (regardless of source), which can be synthesized
  with upstream referenced as described above. Existing
  LibraryContentBlocks will be migrated.

* Finally, some renamings:

  * LibraryContentBlock -> LegacyLibraryContentBlock
  * LibraryToolsService -> LegacyLibraryToolsService
  * LibrarySummary -> LegacyLibrarySummary

  Module names and the old OLX tag (library_content) are unchanged.

Closes: openedx/frontend-app-authoring#1115

cms/djangoapps/contentstore/config/waffle.py

@@ -4,7 +4,7 @@
 """
 
 
-from edx_toggles.toggles import WaffleFlag, WaffleSwitch
+from edx_toggles.toggles import WaffleSwitch
 
 from openedx.core.djangoapps.waffle_utils import CourseWaffleFlag
 
@@ -26,20 +26,6 @@
     f'{WAFFLE_NAMESPACE}.show_review_rules', __name__, LOG_PREFIX
 )
 
-# Waffle flag to redirect to the library authoring MFE.
-# .. toggle_name: contentstore.library_authoring_mfe
-# .. toggle_implementation: WaffleFlag
-# .. toggle_default: False
-# .. toggle_description: Toggles the new micro-frontend-based implementation of the library authoring experience.
-# .. toggle_use_cases: temporary, open_edx
-# .. toggle_creation_date: 2020-08-03
-# .. toggle_target_removal_date: 2020-12-31
-# .. toggle_warning: Also set settings.LIBRARY_AUTHORING_MICROFRONTEND_URL and ENABLE_LIBRARY_AUTHORING_MICROFRONTEND.
-# .. toggle_tickets: https://openedx.atlassian.net/wiki/spaces/OEPM/pages/4106944527/Libraries+Relaunch+Proposal+For+Product+Review
-REDIRECT_TO_LIBRARY_AUTHORING_MICROFRONTEND = WaffleFlag(
-    f'{WAFFLE_NAMESPACE}.library_authoring_mfe', __name__, LOG_PREFIX
-)
-
 
 # .. toggle_name: studio.custom_relative_dates
 # .. toggle_implementation: CourseWaffleFlag

cms/djangoapps/contentstore/rest_api/v1/serializers/home.py

@@ -59,10 +59,8 @@ class CourseHomeSerializer(serializers.Serializer):
     libraries = LibraryViewSerializer(many=True, required=False, allow_null=True)
     libraries_enabled = serializers.BooleanField()
     taxonomies_enabled = serializers.BooleanField()
-    library_authoring_mfe_url = serializers.CharField()
     taxonomy_list_mfe_url = serializers.CharField()
     optimization_enabled = serializers.BooleanField()
-    redirect_to_library_authoring_mfe = serializers.BooleanField()
     request_course_creator_url = serializers.CharField()
     rerun_creator_status = serializers.BooleanField()
     show_new_library_button = serializers.BooleanField()

cms/djangoapps/contentstore/rest_api/v1/views/home.py

@@ -59,9 +59,7 @@ def get(self, request: Request):
             "in_process_course_actions": [],
             "libraries": [],
             "libraries_enabled": true,
-            "library_authoring_mfe_url": "//localhost:3001/course/course-v1:edX+P315+2T2023",
             "optimization_enabled": true,
-            "redirect_to_library_authoring_mfe": false,
             "request_course_creator_url": "/request_course_creator",
             "rerun_creator_status": true,
             "show_new_library_button": true,

cms/djangoapps/contentstore/rest_api/v1/views/tests/test_home.py

@@ -52,10 +52,8 @@ def test_home_page_courses_response(self):
             "libraries": [],
             "libraries_enabled": True,
             "taxonomies_enabled": True,
-            "library_authoring_mfe_url": settings.LIBRARY_AUTHORING_MICROFRONTEND_URL,
             "taxonomy_list_mfe_url": 'http://course-authoring-mfe/taxonomies',
             "optimization_enabled": False,
-            "redirect_to_library_authoring_mfe": False,
             "request_course_creator_url": "/request_course_creator",
             "rerun_creator_status": True,
             "show_new_library_button": True,

cms/djangoapps/contentstore/utils.py

@@ -98,7 +98,7 @@
 )
 from cms.djangoapps.models.settings.course_grading import CourseGradingModel
 from cms.djangoapps.models.settings.course_metadata import CourseMetadata
-from xmodule.library_tools import LibraryToolsService
+from xmodule.library_tools import LegacyLibraryToolsService
 from xmodule.course_block import DEFAULT_START_DATE  # lint-amnesty, pylint: disable=wrong-import-order
 from xmodule.data import CertificatesDisplayBehaviors
 from xmodule.modulestore import ModuleStoreEnum  # lint-amnesty, pylint: disable=wrong-import-order
@@ -1265,7 +1265,7 @@ def load_services_for_studio(runtime, user):
         "settings": SettingsService(),
         "lti-configuration": ConfigurationService(CourseAllowPIISharingInLTIFlag),
         "teams_configuration": TeamsConfigurationService(),
-        "library_tools": LibraryToolsService(modulestore(), user.id)
+        "library_tools": LegacyLibraryToolsService(modulestore(), user.id)
     }
 
     runtime._services.update(services)  # lint-amnesty, pylint: disable=protected-access
@@ -1671,9 +1671,7 @@ def get_home_context(request, no_course=False):
         ENABLE_GLOBAL_STAFF_OPTIMIZATION,
     )
     from cms.djangoapps.contentstore.views.library import (
-        LIBRARY_AUTHORING_MICROFRONTEND_URL,
         LIBRARIES_ENABLED,
-        should_redirect_to_library_authoring_mfe,
         user_can_view_create_library_button,
     )
 
@@ -1699,12 +1697,9 @@ def get_home_context(request, no_course=False):
         'in_process_course_actions': in_process_course_actions,
         'libraries_enabled': LIBRARIES_ENABLED,
         'taxonomies_enabled': not is_tagging_feature_disabled(),
-        'redirect_to_library_authoring_mfe': should_redirect_to_library_authoring_mfe(),
-        'library_authoring_mfe_url': LIBRARY_AUTHORING_MICROFRONTEND_URL,
         'taxonomy_list_mfe_url': get_taxonomy_list_url(),
         'libraries': libraries,
-        'show_new_library_button': user_can_view_create_library_button(user)
-        and not should_redirect_to_library_authoring_mfe(),
+        'show_new_library_button': user_can_view_create_library_button(user),
         'user': user,
         'request_course_creator_url': reverse('request_course_creator'),
         'course_creator_status': _get_course_creator_status(user),
@@ -2202,7 +2197,7 @@ class StudioPermissionsService:
 
     Deprecated. To be replaced by a more general authorization service.
 
-    Only used by LibraryContentBlock (and library_tools.py).
+    Only used by LegacyLibraryContentBlock (and library_tools.py).
     """
 
     def __init__(self, user):

cms/djangoapps/contentstore/views/library.py

@@ -41,7 +41,6 @@
 )
 from common.djangoapps.util.json_request import JsonResponse, JsonResponseBadRequest, expect_json
 
-from ..config.waffle import REDIRECT_TO_LIBRARY_AUTHORING_MICROFRONTEND
 from ..utils import add_instructor, reverse_library_url
 from .component import CONTAINER_TEMPLATES, get_component_templates
 from cms.djangoapps.contentstore.xblock_storage_handlers.view_handlers import create_xblock_info
@@ -52,21 +51,6 @@
 log = logging.getLogger(__name__)
 
 LIBRARIES_ENABLED = settings.FEATURES.get('ENABLE_CONTENT_LIBRARIES', False)
-ENABLE_LIBRARY_AUTHORING_MICROFRONTEND = settings.FEATURES.get('ENABLE_LIBRARY_AUTHORING_MICROFRONTEND', False)
-LIBRARY_AUTHORING_MICROFRONTEND_URL = settings.LIBRARY_AUTHORING_MICROFRONTEND_URL
-
-
-def should_redirect_to_library_authoring_mfe():
-    """
-    Boolean helper method, returns whether or not to redirect to the Library
-    Authoring MFE based on settings and flags.
-    """
-
-    return (
-        ENABLE_LIBRARY_AUTHORING_MICROFRONTEND and
-        LIBRARY_AUTHORING_MICROFRONTEND_URL and
-        REDIRECT_TO_LIBRARY_AUTHORING_MICROFRONTEND.is_enabled()
-    )
 
 
 def _user_can_create_library_for_org(user, org=None):

cms/djangoapps/contentstore/views/tests/test_block.py

@@ -982,7 +982,7 @@ def test_shallow_duplicate(self):
 
     def test_duplicate_library_content_block(self):  # pylint: disable=too-many-statements
         """
-        Test the LibraryContentBlock's special duplication process.
+        Test the LegacyLibraryContentBlock's special duplication process.
         """
         store = modulestore()
 

cms/envs/common.py

@@ -434,18 +434,6 @@
     # .. toggle_tickets: https://openedx.atlassian.net/browse/DEPR-58
     'DEPRECATE_OLD_COURSE_KEYS_IN_STUDIO': True,
 
-    # .. toggle_name: FEATURES['ENABLE_LIBRARY_AUTHORING_MICROFRONTEND']
-    # .. toggle_implementation: DjangoSetting
-    # .. toggle_default: False
-    # .. toggle_description: Set to True to enable the Library Authoring MFE
-    # .. toggle_use_cases: temporary
-    # .. toggle_creation_date: 2020-06-20
-    # .. toggle_target_removal_date: 2020-12-31
-    # .. toggle_tickets: https://openedx.atlassian.net/wiki/spaces/OEPM/pages/4106944527/Libraries+Relaunch+Proposal+For+Product+Review
-    # .. toggle_warning: Also set settings.LIBRARY_AUTHORING_MICROFRONTEND_URL and see
-    #   REDIRECT_TO_LIBRARY_AUTHORING_MICROFRONTEND for rollout.
-    'ENABLE_LIBRARY_AUTHORING_MICROFRONTEND': False,
-
     # .. toggle_name: FEATURES['DISABLE_COURSE_CREATION']
     # .. toggle_implementation: DjangoSetting
     # .. toggle_default: False
@@ -601,7 +589,6 @@
 COURSE_AUTHORING_MICROFRONTEND_URL = None
 DISCUSSIONS_MICROFRONTEND_URL = None
 DISCUSSIONS_MFE_FEEDBACK_URL = None
-LIBRARY_AUTHORING_MICROFRONTEND_URL = None
 # .. toggle_name: ENABLE_AUTHN_RESET_PASSWORD_HIBP_POLICY
 # .. toggle_implementation: DjangoSetting
 # .. toggle_default: False
@@ -2779,6 +2766,7 @@
 CUSTOM_PAGES_HELP_URL = "https://edx.readthedocs.io/projects/open-edx-building-and-running-a-course/en/latest/course_assets/pages.html#adding-custom-pages"
 COURSE_LIVE_HELP_URL = "https://edx.readthedocs.io/projects/edx-partner-course-staff/en/latest/course_assets/course_live.html"
 ORA_SETTINGS_HELP_URL = "https://edx.readthedocs.io/projects/open-edx-building-and-running-a-course/en/latest/course_assets/pages.html#configuring-course-level-open-response-assessment-settings"
+# pylint: enable=line-too-long
 
 # keys for  big blue button live provider
 COURSE_LIVE_GLOBAL_CREDENTIALS = {}
@@ -2810,6 +2798,7 @@
 # Learn More link in upgraded discussion notification alert
 # pylint: disable=line-too-long
 DISCUSSIONS_INCONTEXT_LEARNMORE_URL = "https://edx.readthedocs.io/projects/open-edx-building-and-running-a-course/en/latest/manage_discussions/discussions.html"
+# pylint: enable=line-too-long
 
 #### django-simple-history##
 # disable indexing on date field its coming django-simple-history.

cms/envs/devstack.py

@@ -174,9 +174,6 @@ def should_show_debug_toolbar(request):  # lint-amnesty, pylint: disable=missing
 ################### FRONTEND APPLICATION PUBLISHER URL ###################
 FEATURES['FRONTEND_APP_PUBLISHER_URL'] = 'http://localhost:18400'
 
-################### FRONTEND APPLICATION LIBRARY AUTHORING ###################
-LIBRARY_AUTHORING_MICROFRONTEND_URL = 'http://localhost:3001'
-
 ################### FRONTEND APPLICATION COURSE AUTHORING ###################
 COURSE_AUTHORING_MICROFRONTEND_URL = 'http://localhost:2001'
 

cms/templates/index.html

@@ -348,17 +348,13 @@ <h3 class="course-title">${course_info['display_name']}</h3>
         % endif
 
         % if libraries_enabled:
-            % if redirect_to_library_authoring_mfe:
-            <li><a href="${library_authoring_mfe_url}">${_("Libraries")}</a></li>
-            %else:
              <li class="libraries-tab ${ 'active' if active_tab == 'libraries' else ''}">
                 % if split_studio_home:
                   <a href="${reverse('home_library')}">${_("Libraries")}</a>
                 % else:
                   <a href="#" >${_("Libraries")}</a>
                 % endif
              </li>
-            % endif
         % endif
         % if taxonomies_enabled:
             <li><a href="${taxonomy_list_mfe_url}">${_("Taxonomies")}</li>

docs/docs_settings.py

@@ -14,7 +14,6 @@
     ADVANCED_PROBLEM_TYPES,
     COURSE_IMPORT_EXPORT_STORAGE,
     GIT_EXPORT_DEFAULT_IDENT,
-    LIBRARY_AUTHORING_MICROFRONTEND_URL,
     SCRAPE_YOUTUBE_THUMBNAILS_JOB_QUEUE,
     VIDEO_TRANSCRIPT_MIGRATIONS_JOB_QUEUE,
     UPDATE_SEARCH_INDEX_JOB_QUEUE,

lms/djangoapps/course_blocks/transformers/library_content.py

@@ -14,7 +14,7 @@
     BlockStructureTransformer,
     FilteringTransformerMixin
 )
-from xmodule.library_content_block import LibraryContentBlock  # lint-amnesty, pylint: disable=wrong-import-order
+from xmodule.library_content_block import LegacyLibraryContentBlock  # lint-amnesty, pylint: disable=wrong-import-order
 from xmodule.modulestore.django import modulestore  # lint-amnesty, pylint: disable=wrong-import-order
 
 from ..utils import get_student_module_as_dict
@@ -47,7 +47,6 @@ def collect(cls, block_structure):
         Collects any information that's necessary to execute this
         transformer's transform method.
         """
-        block_structure.request_xblock_fields('mode')
         block_structure.request_xblock_fields('max_count')
         block_structure.request_xblock_fields('category')
         store = modulestore()
@@ -83,7 +82,6 @@ def transform_block_filters(self, usage_info, block_structure):
             if library_children:
                 all_library_children.update(library_children)
                 selected = []
-                mode = block_structure.get_xblock_field(block_key, 'mode')
                 max_count = block_structure.get_xblock_field(block_key, 'max_count')
                 if max_count < 0:
                     max_count = len(library_children)
@@ -100,7 +98,7 @@ def transform_block_filters(self, usage_info, block_structure):
 
                 # Update selected
                 previous_count = len(selected)
-                block_keys = LibraryContentBlock.make_selection(selected, library_children, max_count, mode)
+                block_keys = LegacyLibraryContentBlock.make_selection(selected, library_children, max_count)
                 selected = block_keys['selected']
 
                 # Save back any changes
@@ -172,11 +170,11 @@ def publish_event(event_name, result, **kwargs):
             context = contexts.course_context_from_course_id(location.course_key)
             if user_id:
                 context['user_id'] = user_id
-            full_event_name = f"edx.librarycontentblock.content.{event_name}"
+            full_event_name = f"edx.LibraryContentBlock.content.{event_name}"
             with tracker.get_tracker().context(full_event_name, context):
                 tracker.emit(full_event_name, event_data)
 
-        LibraryContentBlock.publish_selected_children_events(
+        LegacyLibraryContentBlock.publish_selected_children_events(
             block_keys,
             format_block_keys,
             publish_event,

lms/djangoapps/courseware/block_render.py

@@ -45,7 +45,7 @@
 from openedx.core.lib.xblock_services.call_to_action import CallToActionService
 from xmodule.contentstore.django import contentstore
 from xmodule.exceptions import NotFoundError, ProcessingError
-from xmodule.library_tools import LibraryToolsService
+from xmodule.library_tools import LegacyLibraryToolsService
 from xmodule.modulestore.django import XBlockI18nService, modulestore
 from xmodule.modulestore.exceptions import ItemNotFoundError
 from xmodule.partitions.partitions_service import PartitionService
@@ -626,7 +626,7 @@ def inner_get_block(block: XBlock) -> XBlock | None:
         ),
         'completion': CompletionService(user=user, context_key=course_id) if user and user.is_authenticated else None,
         'i18n': XBlockI18nService,
-        'library_tools': LibraryToolsService(store, user_id=user.id if user else None),
+        'library_tools': LegacyLibraryToolsService(store, user_id=user.id if user else None),
         'partitions': PartitionService(course_id=course_id, cache=DEFAULT_REQUEST_CACHE.data),
         'settings': SettingsService(),
         'user_tags': UserTagsService(user=user, course_id=course_id),

lms/djangoapps/grades/rest_api/v1/views.py

@@ -378,7 +378,7 @@ class SubmissionHistoryView(GradeViewMixin, PaginatedAPIView):
     def get(self, request, course_id=None):
         """
         Get submission history details. This submission history is related to only
-        ProblemBlock and it doesn't support LibraryContentBlock or ContentLibraries
+        ProblemBlock and it doesn't support LegacyLibraryContentBlock or ContentLibraries
         as of now.
 
         **Usecases**:
@@ -463,7 +463,7 @@ def _generate_course_structure(enrollments):
     @staticmethod
     def get_problem_blocks(course):
         """ Get a list of problem xblock for the course.
-            This doesn't support LibraryContentBlock or ContentLibraries
+            This doesn't support LegacyLibraryContentBlock or ContentLibraries
             as of now
         """
         blocks = []