BaseContext

Controllers refactoring with contexts
Move commit compare logic to model

app/contexts/merge_requests_load.rb

@@ -0,0 +1,16 @@
+class MergeRequestsLoad < BaseContext
+  def execute
+    type = params[:f].to_i
+
+    merge_requests = project.merge_requests
+
+    merge_requests = case type
+                     when 1 then merge_requests
+                     when 2 then merge_requests.closed
+                     when 3 then merge_requests.opened.assigned(current_user)
+                     else merge_requests.opened
+                     end.page(params[:page]).per(20)
+
+    merge_requests.includes(:author, :project).order("closed, created_at desc")
+  end
+end