refactor: [AXIMST-790] Make waffle flag to disable cache, instead of …

…enabling

lms/djangoapps/course_home_api/outline/serializers.py

@@ -85,8 +85,7 @@ def get_vertical_icon_class(block):
         for higher_class in icon_call_priority:
             if higher_class in child_classes:
                 new_class = higher_class
-        # if 'openassessment' in child_classes:
-        #     new_class = 'fa-pencil-square-o'
+
         return new_class
 
 

lms/djangoapps/course_home_api/outline/views.py

@@ -40,7 +40,7 @@
 from lms.djangoapps.courseware.courses import get_course_date_blocks, get_course_info_section
 from lms.djangoapps.courseware.date_summary import TodaysDate
 from lms.djangoapps.courseware.masquerade import is_masquerading, setup_masquerade
-from lms.djangoapps.courseware.toggles import courseware_mfe_navigation_sidebar_blocks_caching_is_enabled
+from lms.djangoapps.courseware.toggles import courseware_disable_navigation_sidebar_blocks_caching
 from lms.djangoapps.courseware.views.views import get_cert_data
 from lms.djangoapps.grades.course_grade_factory import CourseGradeFactory
 from lms.djangoapps.utils import OptimizelyClient
@@ -459,18 +459,19 @@ def get(self, request, *args, **kwargs):
             allow_public_outline=allow_public_outline,
             is_masquerading=user_is_masquerading,
         )
-        if courseware_mfe_navigation_sidebar_blocks_caching_is_enabled():
-            course_blocks = cache.get(cache_key)
-        else:
+
+        if navigation_sidebar_caching_is_disabled := courseware_disable_navigation_sidebar_blocks_caching():
             course_blocks = None
+        else:
+            course_blocks = cache.get(cache_key)
 
         if not course_blocks:
             if getattr(enrollment, 'is_active', False) or bool(staff_access):
                 course_blocks = get_course_outline_block_tree(request, course_key_string, request.user)
             elif allow_public_outline or allow_public or user_is_masquerading:
                 course_blocks = get_course_outline_block_tree(request, course_key_string, None)
 
-            if courseware_mfe_navigation_sidebar_blocks_caching_is_enabled():
+            if not navigation_sidebar_caching_is_disabled:
                 cache.set(cache_key, course_blocks, self.COURSE_BLOCKS_CACHE_TIMEOUT)
 
         course_blocks = self.filter_inaccessible_blocks(course_blocks, course_key)

lms/djangoapps/courseware/toggles.py

@@ -71,14 +71,16 @@
 # .. toggle_name: courseware.navigation_sidebar_blocks_caching
 # .. toggle_implementation: WaffleFlag
 # .. toggle_default: False
-# .. toggle_description: Enable caching of navigation sidebar blocks on Learning MFE to improve performance.
+# .. toggle_description: Disable caching of navigation sidebar blocks on Learning MFE.
+# It can be used when caching the structure of large courses for a large number of users
+# at the same time can overload the cache storage (memcache or redis).
 # .. toggle_use_cases: temporary
 # .. toggle_creation_date: 2024-03-21
 # .. toggle_target_removal_date: None
-# .. toggle_tickets: AXIMST-682
+# .. toggle_tickets: FC-0056
 # .. toggle_warning: None.
-COURSEWARE_MICROFRONTEND_NAVIGATION_SIDEBAR_BLOCKS_CACHING_ENABLED = CourseWaffleFlag(
-    f'{WAFFLE_FLAG_NAMESPACE}.navigation_sidebar_blocks_caching', __name__
+COURSEWARE_MICROFRONTEND_NAVIGATION_SIDEBAR_BLOCKS_DISABLE_CACHING = CourseWaffleFlag(
+    f'{WAFFLE_FLAG_NAMESPACE}.disable_navigation_sidebar_blocks_caching', __name__
 )
 
 # .. toggle_name: courseware.disable_navigation_sidebar
@@ -228,8 +230,8 @@ def courseware_show_default_right_sidebar_is_enabled(course_key=None):
     return COURSEWARE_SHOW_DEFAULT_RIGHT_SIDEBAR.is_enabled(course_key)
 
 
-def courseware_mfe_navigation_sidebar_blocks_caching_is_enabled(course_key=None):
+def courseware_disable_navigation_sidebar_blocks_caching(course_key=None):
     """
-    Return whether the courseware.navigation_sidebar_blocks_caching flag is on.
+    Return whether the courseware.disable_navigation_sidebar_blocks_caching flag is on.
     """
-    return COURSEWARE_MICROFRONTEND_NAVIGATION_SIDEBAR_BLOCKS_CACHING_ENABLED.is_enabled(course_key)
+    return COURSEWARE_MICROFRONTEND_NAVIGATION_SIDEBAR_BLOCKS_DISABLE_CACHING.is_enabled(course_key)