diff --git a/app/builders/collection_builder.rb b/app/builders/collection_builder.rb
index 7c1b3d0c48e5addfea90efef1d5cc1cd7877482f..165135322d8fc4deb743cf674b1318a98a302e56 100644
--- a/app/builders/collection_builder.rb
+++ b/app/builders/collection_builder.rb
@@ -14,29 +14,11 @@ class CollectionBuilder < Builder
   end
 
   def self.build_from_orientdb(args = {})
-<<<<<<< HEAD
-    lo = nil
-    unless args.nil?
-      # cache object when build
-      lo = Rails.cache.fetch(cache_key(args['@rid'], args['last_modified']), expires_in: 12.hours) do
-        type = (args['name'] == 'Bookmarks') ? Bookmarks : Collection
-        learning_objects = args['learning_objects'].nil? ? [] : LearningObjectBuilder.build(map_rid_to_object(args['learning_objects']))
-        obj = type.new(
-            learning_objects: learning_objects,
-            privacy: args['privacy'],
-            id: args['@rid']
-        )
-        obj.name = args['name'] unless type == Bookmarks
-        obj.owner = collection_repository.owner(args['@rid'])
-        obj.created_at = DateTime.strptime(args['created_at'], "%Y-%m-%d %H:%M:%S") unless args['created_at'].nil?
-        obj.last_modified = DateTime.strptime(args['last_modified'], "%Y-%m-%d %H:%M:%S") unless args['last_modified'].nil?
-        obj
-      end
-=======
     super(args) do
       type = (args['name'] == 'Bookmarks') ? Bookmarks : Collection
+      learning_objects = args['learning_objects'].nil? ? [] : LearningObjectBuilder.build(map_rid_to_object(args['learning_objects']))
       obj = type.new(
-        learning_objects: LearningObjectBuilder.build(map_rid_to_object(args['learning_objects']) || []),
+        learning_objects: learning_objects,
         privacy: args['privacy'],
         id: args['@rid']
       )
@@ -45,7 +27,6 @@ class CollectionBuilder < Builder
       obj.created_at = DateTime.strptime(args['created_at'], "%Y-%m-%d %H:%M:%S") unless args['created_at'].nil?
       obj.last_modified = DateTime.strptime(args['last_modified'], "%Y-%m-%d %H:%M:%S") unless args['last_modified'].nil?
       obj
->>>>>>> master
     end
   end