Merge branch 'events-cache-invalidation' into 'master'

Remove caching of events data

This MR removes the caching of events data as this was deemed unnecessary while increasing load on the database. See https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6578#note_18864037 and 5371da341e9d7768ebab8e159b3e2cc8fad1d827 for more information.

See merge request !6578

1 files changed, 0 insertions, 17 deletions

diff --git a/app/models/project.rb b/app/models/project.rb
index 9256e9ddd95..c61e63461e0 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -976,7 +976,6 @@ class Project < ActiveRecord::Base
       begin
         gitlab_shell.mv_repository(repository_storage_path, "#{old_path_with_namespace}.wiki", "#{new_path_with_namespace}.wiki")
         send_move_instructions(old_path_with_namespace)
-        reset_events_cache
 
         @old_path_with_namespace = old_path_with_namespace
 
@@ -1043,22 +1042,6 @@ class Project < ActiveRecord::Base
     attrs
   end
 
-  # Reset events cache related to this project
-  #
-  # Since we do cache @event we need to reset cache in special cases:
-  # * when project was moved
-  # * when project was renamed
-  # * when the project avatar changes
-  # 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(project_id: self.id).
-      order('id DESC').limit(100).
-      update_all(updated_at: Time.now)
-  end
-
   def project_member(user)
     project_members.find_by(user_id: user)
   end