Refactor ADVANCED_COMPONENT_TYPES

    Modified to a setting in CMS common.py and aws.py
    Also factored out are: ADVANCED_PROBLEM_TYPES

    This enables third parties to add XBlocks to their system
    without having to make a code change.

    Code also added to ensure that a component should exist in both
    ADVANCED_COMPONENT_TYPES and the course advanced module list
    in order for it to be enabled in the course.

cms/djangoapps/contentstore/views/component.py

@@ -43,44 +43,22 @@ log = logging.getLogger(__name__)
 
 # NOTE: unit_handler assumes this list is disjoint from ADVANCED_COMPONENT_TYPES
 COMPONENT_TYPES = ['discussion', 'html', 'problem', 'video']
-SPLIT_TEST_COMPONENT_TYPE = 'split_test'
 
+# Constants for determining if these components should be enabled for this course
+SPLIT_TEST_COMPONENT_TYPE = 'split_test'
 OPEN_ENDED_COMPONENT_TYPES = ["combinedopenended", "peergrading"]
 NOTE_COMPONENT_TYPES = ['notes']
+
 if settings.FEATURES.get('ALLOW_ALL_ADVANCED_COMPONENTS'):
     ADVANCED_COMPONENT_TYPES = sorted(set(name for name, class_ in XBlock.load_classes()) - set(COMPONENT_TYPES))
 else:
-
-    ADVANCED_COMPONENT_TYPES = [
-        'annotatable',
-        'textannotation',  # module for annotating text (with annotation table)
-        'videoannotation',  # module for annotating video (with annotation table)
-        'imageannotation',  # module for annotating image (with annotation table)
-        'word_cloud',
-        'graphical_slider_tool',
-        'lti',
-        # XBlocks from pmitros repos are prototypes. They should not be used
-        # except for edX Learning Sciences experiments on edge.edx.org without
-        # further work to make them robust, maintainable, finalize data formats,
-        # etc.
-        'concept',  # Concept mapper. See https://github.com/pmitros/ConceptXBlock
-        'done',  # Lets students mark things as done. See https://github.com/pmitros/DoneXBlock
-        'audio',  # Embed an audio file. See https://github.com/pmitros/AudioXBlock
-        SPLIT_TEST_COMPONENT_TYPE,  # Adds A/B test support
-        'recommender' # Crowdsourced recommender. Prototype by dli&pmitros. Intended for roll-out in one place in one course. 
-    ] + OPEN_ENDED_COMPONENT_TYPES + NOTE_COMPONENT_TYPES
+    ADVANCED_COMPONENT_TYPES = settings.ADVANCED_COMPONENT_TYPES
 
 ADVANCED_COMPONENT_CATEGORY = 'advanced'
 ADVANCED_COMPONENT_POLICY_KEY = 'advanced_modules'
 
-# Specify xblocks that should be treated as advanced problems. Each entry is a tuple
-# specifying the xblock name and an optional YAML template to be used.
-ADVANCED_PROBLEM_TYPES = [
-    {
-        'component': 'openassessment',
-        'boilerplate_name': None
-    }
-]
+ADVANCED_PROBLEM_TYPES = settings.ADVANCED_PROBLEM_TYPES
+
 
 @require_GET
 @login_required
@@ -358,7 +336,7 @@ def get_component_templates(course):
             "type": category,
             "templates": templates_for_category,
             "display_name": component_display_names[category]
-            })
+        })
 
     # Check if there are any advanced modules specified in the course policy.
     # These modules should be specified as a list of strings, where the strings

cms/djangoapps/contentstore/views/course.py

@@ -52,6 +52,7 @@ from .component import (
     NOTE_COMPONENT_TYPES,
     ADVANCED_COMPONENT_POLICY_KEY,
     SPLIT_TEST_COMPONENT_TYPE,
+    ADVANCED_COMPONENT_TYPES,
 )
 from .tasks import rerun_course
 
@@ -722,7 +723,7 @@ def _config_course_advanced_components(request, course_module):
             component_types = tab_component_map.get(tab_type)
             found_ac_type = False
             for ac_type in component_types:
-                if ac_type in request.json[ADVANCED_COMPONENT_POLICY_KEY]["value"]:
+                if ac_type in request.json[ADVANCED_COMPONENT_POLICY_KEY]["value"] and ac_type in ADVANCED_COMPONENT_TYPES:
                     # Add tab to the course if needed
                     changed, new_tabs = add_extra_panel_tab(tab_type, course_module)
                     # If a tab has been added to the course, then send the
@@ -1150,7 +1151,7 @@ def group_configurations_list_handler(request, course_key_string):
     if 'text/html' in request.META.get('HTTP_ACCEPT', 'text/html'):
         group_configuration_url = reverse_course_url('group_configurations_list_handler', course_key)
         course_outline_url = reverse_course_url('course_handler', course_key)
-        split_test_enabled = SPLIT_TEST_COMPONENT_TYPE in course.advanced_modules
+        split_test_enabled = SPLIT_TEST_COMPONENT_TYPE in ADVANCED_COMPONENT_TYPES and SPLIT_TEST_COMPONENT_TYPE in course.advanced_modules
 
         configurations = GroupConfiguration.add_usage_info(course, store)
 

cms/envs/aws.py

@@ -284,3 +284,8 @@ X_FRAME_OPTIONS = ENV_TOKENS.get('X_FRAME_OPTIONS', X_FRAME_OPTIONS)
 
 ##### ADVANCED_SECURITY_CONFIG #####
 ADVANCED_SECURITY_CONFIG = ENV_TOKENS.get('ADVANCED_SECURITY_CONFIG', {})
+
+################ ADVANCED COMPONENT/PROBLEM TYPES ###############
+
+ADVANCED_COMPONENT_TYPES = ENV_TOKENS.get('ADVANCED_COMPONENT_TYPES', ADVANCED_COMPONENT_TYPES)
+ADVANCED_PROBLEM_TYPES = ENV_TOKENS.get('ADVANCED_PROBLEM_TYPES', ADVANCED_PROBLEM_TYPES)

cms/envs/common.py

@@ -645,3 +645,36 @@ ADVANCED_SECURITY_CONFIG = {}
 ### External auth usage -- prefixes for ENROLLMENT_DOMAIN
 SHIBBOLETH_DOMAIN_PREFIX = 'shib:'
 OPENID_DOMAIN_PREFIX = 'openid:'
+
+################ ADVANCED_COMPONENT_TYPES ###############
+
+ADVANCED_COMPONENT_TYPES = [
+    'annotatable',
+    'textannotation',  # module for annotating text (with annotation table)
+    'videoannotation',  # module for annotating video (with annotation table)
+    'imageannotation',  # module for annotating image (with annotation table)
+    'word_cloud',
+    'graphical_slider_tool',
+    'lti',
+    # XBlocks from pmitros repos are prototypes. They should not be used
+    # except for edX Learning Sciences experiments on edge.edx.org without
+    # further work to make them robust, maintainable, finalize data formats,
+    # etc.
+    'concept',  # Concept mapper. See https://github.com/pmitros/ConceptXBlock
+    'done',  # Lets students mark things as done. See https://github.com/pmitros/DoneXBlock
+    'audio',  # Embed an audio file. See https://github.com/pmitros/AudioXBlock
+    'recommender',  # Crowdsourced recommender. Prototype by dli&pmitros. Intended for roll-out in one place in one course.
+    'split_test',
+    'combinedopenended',
+    'peergrading',
+    'notes',
+]
+
+# Specify xblocks that should be treated as advanced problems. Each entry is a tuple
+# specifying the xblock name and an optional YAML template to be used.
+ADVANCED_PROBLEM_TYPES = [
+    {
+        'component': 'openassessment',
+        'boilerplate_name': None,
+    }
+]