feat: options for excluding courses from search

Adds two new fields to the indexed course data:
- invitation_only
- catalog_visibility

Also adds two new settings:
`SEARCH_SKIP_INVITATION_ONLY_FILTERING`
`SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING`

These settings can be used to filter out courses in the search results
based on their catalog visibility or based on whether they are
invitation-only courses.

cms/djangoapps/contentstore/courseware_index.py

@@ -587,6 +587,8 @@ class CourseAboutSearchIndexer(CoursewareSearchIndexer):
         AboutInfo("org", AboutInfo.PROPERTY, AboutInfo.FROM_COURSE_PROPERTY),
         AboutInfo("modes", AboutInfo.PROPERTY, AboutInfo.FROM_COURSE_MODE),
         AboutInfo("language", AboutInfo.PROPERTY, AboutInfo.FROM_COURSE_PROPERTY),
+        AboutInfo("invitation_only", AboutInfo.PROPERTY, AboutInfo.FROM_COURSE_PROPERTY),
+        AboutInfo("catalog_visibility", AboutInfo.PROPERTY, AboutInfo.FROM_COURSE_PROPERTY),
     ]
 
     @classmethod

lms/envs/common.py

@@ -4009,6 +4009,10 @@ SEARCH_RESULT_PROCESSOR = "lms.lib.courseware_search.lms_result_processor.LmsSea
 SEARCH_FILTER_GENERATOR = "lms.lib.courseware_search.lms_filter_generator.LmsSearchFilterGenerator"
 # Override to skip enrollment start date filtering in course search
 SEARCH_SKIP_ENROLLMENT_START_DATE_FILTERING = False
+# Override to skip excluding invitation-only courses in course search
+SEARCH_SKIP_INVITATION_ONLY_FILTERING = True
+# Override to skip excluding non-catalog courses in course search
+SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING = True
 
 # The configuration visibility of account fields.
 ACCOUNT_VISIBILITY_CONFIGURATION = {

lms/envs/production.py

@@ -728,6 +728,15 @@ if FEATURES.get('ENABLE_COURSEWARE_SEARCH') or \
     SEARCH_ENGINE = "search.elastic.ElasticSearchEngine"
     SEARCH_FILTER_GENERATOR = ENV_TOKENS.get('SEARCH_FILTER_GENERATOR', SEARCH_FILTER_GENERATOR)
 
+SEARCH_SKIP_INVITATION_ONLY_FILTERING = ENV_TOKENS.get(
+    'SEARCH_SKIP_INVITATION_ONLY_FILTERING',
+    SEARCH_SKIP_INVITATION_ONLY_FILTERING
+)
+SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING = ENV_TOKENS.get(
+    'SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING',
+    SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING
+)
+
 # TODO: Once we have successfully upgraded to ES7, switch this back to ELASTIC_SEARCH_CONFIG.
 ELASTIC_SEARCH_CONFIG = ENV_TOKENS.get('ELASTIC_SEARCH_CONFIG_ES7', [{}])
 

lms/lib/courseware_search/lms_filter_generator.py

@@ -2,6 +2,7 @@
 This file contains implementation override of SearchFilterGenerator which will allow
     * Filter by all courses in which the user is enrolled in
 """
+from django.conf import settings
 from search.filter_generator import SearchFilterGenerator
 
 from openedx.core.djangoapps.course_groups.partition_scheme import CohortPartitionScheme
@@ -52,4 +53,9 @@ class LmsSearchFilterGenerator(SearchFilterGenerator):
             if org_filter_out_set:
                 exclude_dictionary['org'] = list(org_filter_out_set)
 
+        if not getattr(settings, "SEARCH_SKIP_INVITATION_ONLY_FILTERING", False):
+            exclude_dictionary['invitation_only'] = True
+        if not getattr(settings, "SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING", False):
+            exclude_dictionary['catalog_visibility'] = 'none'
+
         return exclude_dictionary