for get_all_content_info_for_course(), return a list of the MongoDB query rather…

for get_all_content_info_for_course(), return a list of the MongoDB query rather than a cursor object. Also add some documentation (in a comment) as to what a caller should expect

cms/djangoapps/contentstore/views.py

@@ -515,7 +515,7 @@ def upload_asset(request, org, course, coursename):
         except:
             # catch, log, and continue as thumbnails are not a hard requirement
             logging.error('Failed to generate thumbnail for {0}. Continuing...'.format(name))
-            raise
+
 
     return HttpResponse('Upload completed')
 

common/lib/xmodule/xmodule/contentstore/mongo.py

@@ -42,10 +42,29 @@ class MongoContentStore(ContentStore):
             raise NotFoundError()
 
     def get_all_content_info_for_course(self, location):
+        '''
+        Returns a list of all static assets for a course. The return format is a list of dictionary elements. Example:
+
+            [
+
+            {u'displayname': u'profile.jpg', u'chunkSize': 262144, u'length': 85374, 
+            u'uploadDate': datetime.datetime(2012, 10, 3, 5, 41, 54, 183000), u'contentType': u'image/jpeg', 
+            u'_id': {u'category': u'asset', u'name': u'profile.jpg', u'course': u'6.002x', u'tag': u'c4x', 
+            u'org': u'MITx', u'revision': None}, u'md5': u'36dc53519d4b735eb6beba51cd686a0e'}, 
+
+            {u'displayname': u'profile.thumbnail.jpg', u'chunkSize': 262144, u'length': 4073, 
+            u'uploadDate': datetime.datetime(2012, 10, 3, 5, 41, 54, 196000), u'contentType': u'image/jpeg', 
+            u'_id': {u'category': u'asset', u'name': u'profile.thumbnail.jpg', u'course': u'6.002x', u'tag': u'c4x', 
+            u'org': u'MITx', u'revision': None}, u'md5': u'ff1532598830e3feac91c2449eaa60d6'},
+
+            ....
+
+            ]
+        '''
         course_filter = Location(XASSET_LOCATION_TAG, category="asset",course=location.course,org=location.org)
         # 'borrow' the function 'location_to_query' from the Mongo modulestore implementation
         items = self.fs_files.find(location_to_query(course_filter))
-        return items
+        return list(items)