Add method to find courses that contain a particular module location

cms/djangoapps/contentstore/views.py

@@ -110,7 +110,7 @@ def edit_item(request):
         lms_link = "{lms_base}/courses/{course_id}/jump_to/{location}".format(
             lms_base=settings.LMS_BASE,
             # TODO: These will need to be changed to point to the particular instance of this problem in the particular course
-            course_id=[course.id for course in modulestore().get_courses() if course.location.org == item.location.org and course.location.course == item.location.course][0],
+            course_id=modulestore().get_containing_courses()[0].id,
             location=item.location,
         )
     else:

common/lib/xmodule/xmodule/modulestore/__init__.py

@@ -338,7 +338,6 @@ class ModuleStore(object):
         '''
         raise NotImplementedError
 
-
     def get_parent_locations(self, location):
         '''Find all locations that are the parents of this location.  Needed
         for path_to_location().
@@ -347,6 +346,22 @@ class ModuleStore(object):
         '''
         raise NotImplementedError
 
+    def get_containing_courses(self, location):
+        '''
+        Returns the list of courses that contains the specified location
+
+        TODO (cpennington): This should really take a module instance id,
+        rather than a location
+        '''
+        courses = [
+            course
+            for course in self.get_courses()
+            if course.location.org == location.org
+               and course.location.course == location.course
+        ]
+
+        return courses
+
 
 class ModuleStoreBase(ModuleStore):
     '''