Fix dashboard event caching

1 files changed, 14 insertions, 0 deletions

diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index e862f35819c..e59aee8b445 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -305,6 +305,20 @@ class MergeRequest < ActiveRecord::Base
     self.target_project.repository.branch_names.include?(self.target_branch)
   end
 
+  # Reset merge request events cache
+  #
+  # Since we do cache @event we need to reset cache in special cases:
+  # * when a merge request is updated
+  # Events cache stored like  events/23-20130109142513.
+  # The cache key includes updated_at timestamp.
+  # Thus it will automatically generate a new fragment
+  # when the event is updated because the key changes.
+  def reset_events_cache
+    Event.where(target_id: self.id, target_type: 'MergeRequest').
+        order('id DESC').limit(100).
+        update_all(updated_at: Time.now)
+  end
+
   private
 
   def dump_commits(commits)