3 files changed, 15 insertions, 1 deletions
diff --git a/app/models/issue.rb b/app/models/issue.rb
index 1c948c8957e..9dbc018ed3e 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -54,6 +54,7 @@ class Issue < ActiveRecord::Base
   scope :preload_associations, -> { preload(:labels, project: :namespace) }
 
   after_save :expire_etag_cache
+  after_commit :update_project_counter_caches, on: :destroy
 
   attr_spammable :title, spam_title: true
   attr_spammable :description, spam_description: true
@@ -269,6 +270,10 @@ class Issue < ActiveRecord::Base
     end
   end
 
+  def update_project_counter_caches
+    Projects::OpenIssuesCountService.new(project).refresh_cache
+  end
+
   private
 
   # Returns `true` if the given User can read the current Issue.
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index ac08dc0ee1f..7fe7df75944 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -32,6 +32,7 @@ class MergeRequest < ActiveRecord::Base
 
   after_create :ensure_merge_request_diff, unless: :importing?
   after_update :reload_diff_if_branch_changed
+  after_commit :update_project_counter_caches, on: :destroy
 
   # When this attribute is true some MR validation is ignored
   # It allows us to close or modify broken merge requests
@@ -937,6 +938,10 @@ class MergeRequest < ActiveRecord::Base
     true
   end
 
+  def update_project_counter_caches
+    Projects::OpenMergeRequestsCountService.new(target_project).refresh_cache
+  end
+
   private
 
   def write_ref
diff --git a/app/models/project.rb b/app/models/project.rb
index be248bc99e1..ddef8b82dee 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -1158,7 +1158,11 @@ class Project < ActiveRecord::Base
   end
 
   def open_issues_count
-    issues.opened.count
+    Projects::OpenIssuesCountService.new(self).count
+  end
+
+  def open_merge_requests_count
+    Projects::OpenMergeRequestsCountService.new(self).count
   end
 
   def visibility_level_allowed_as_fork?(level = self.visibility_level)