add lock and unlock icons to subsections that require prereqs depending on…

add lock and unlock icons to subsections that require prereqs depending on whether the prereq has been met or not

common/djangoapps/util/milestones_helpers.py

@@ -399,6 +399,9 @@ def get_course_content_milestones(course_id, content_id, relationship, user_id=N
     return [m for m in request_cache_dict[user_id][relationship] if m['content_id'] == unicode(content_id)]
 
 
+def get_all_course_content_milestones(course_key, relationship=None):
+    return milestones_api.get_course_content_milestones(course_key, relationship)
+
 def remove_course_content_user_milestones(course_key, content_key, user, relationship):
     """
     Removes the specified User-Milestone link from the system for the specified course content module.

openedx/features/course_experience/templates/course_experience/course-outline-fragment.html

@@ -40,7 +40,7 @@ from openedx.core.djangolib.markup import HTML, Text
                                                 ${ subsection['display_name'] }
                                             </span>
                                             % if subsection['id'] in milestones:
-                                                <span class="menu-icon icon fa ${ 'fa-lock' if milestones[subsection['id']]['completed_prereqs'] else 'fa-unlock' }"
+                                                <span class="menu-icon icon fa ${ 'fa-unlock' if milestones[subsection['id']]['completed_prereqs'] else 'fa-lock' }"
                                                 aria-hidden="true">
                                             </span>
                                             % endif

openedx/features/course_experience/views/course_outline.py

@@ -11,7 +11,7 @@ from courseware.courses import get_course_overview_with_access
 from openedx.core.djangoapps.plugin_api.views import EdxFragmentView
 
 from ..utils import get_course_outline_block_tree
-from util.milestones_helpers import get_course_content_milestones_by_course, milestones_achieved_by_user
+from util.milestones_helpers import get_all_course_content_milestones, get_course_content_milestones_by_course, milestones_achieved_by_user, get_course_content_milestones
 
 
 class CourseOutlineFragmentView(EdxFragmentView):
@@ -30,25 +30,32 @@ class CourseOutlineFragmentView(EdxFragmentView):
         if not course_block_tree:
             return None
 
-        completed_milestones = milestones_achieved_by_user(request.user, course_id)
 
+        content_milestones = {}
+        
+        course_prereqs = get_all_course_content_milestones(course_key) #, relationship='requires')
 
-        milestones = get_course_content_milestones_by_course(
+        unfulfilled_prereqs = get_course_content_milestones_by_course(
             course_id=course_key,
             relationship='requires',
             user_id=request.user.id)
 
-        content_block_milestones = {}
-        for milestone in milestones:
-            content_block_milestones[ milestone['content_id'] ] = {
-                'completed_prereqs': False
-            }
+        for milestone in course_prereqs:
+            # check that its a 'requires' relationship
+            # TODO: just grab the 'requires' milestones from the database
+            if milestone['requirements']: 
+                content_milestones[ milestone['content_id'] ] = {
+                    'completed_prereqs': True
+                }
+        
+        for milestone in unfulfilled_prereqs:
+            content_milestones[ milestone['content_id'] ]['completed_prereqs'] = False
 
         context = {
             'csrf': csrf(request)['csrf_token'],
             'course': course_overview,
             'blocks': course_block_tree,
-            'milestones': content_block_milestones
+            'milestones': content_milestones
         }
         html = render_to_string('course_experience/course-outline-fragment.html', context)
         return Fragment(html)