Extract pipeline vars in merge requests controller

app/controllers/projects/merge_requests_controller.rb

@@ -483,13 +483,12 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     @noteable = @merge_request
     @commits_count = @merge_request.commits.count
 
-    @pipeline = @merge_request.pipeline
-    @statuses = @pipeline.statuses.relevant if @pipeline
-
     if @merge_request.locked_long_ago?
       @merge_request.unlock_mr
       @merge_request.close
     end
+
+    define_pipelines_vars
   end
 
   # Discussion tab data is rendered on html responses of actions
@@ -543,6 +542,15 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     )
   end
 
+  def define_pipelines_vars
+    @pipelines = @merge_request.all_pipelines
+
+    if @pipelines.any?
+      @pipeline = @pipelines.first
+      @statuses = @pipeline.statuses.relevant
+    end
+  end
+
   def define_new_vars
     @noteable = @merge_request
 
@@ -558,10 +566,10 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     @commit = @merge_request.diff_head_commit
     @base_commit = @merge_request.diff_base_commit
 
-    @pipelines = @merge_request.all_pipelines
-    @statuses = @pipelines.first.statuses.relevant if @pipelines.any?
     @note_counts = Note.where(commit_id: @commits.map(&:id)).
       group(:commit_id).count
+
+    define_pipelines_vars
   end
 
   def invalid_mr

app/views/projects/merge_requests/_show.html.haml

@@ -61,7 +61,7 @@
           %li.pipelines-tab
             = link_to pipelines_namespace_project_merge_request_path(@project.namespace, @project, @merge_request), data: { target: '#pipelines', action: 'pipelines', toggle: 'tab' } do
               Pipelines
-              %span.badge= @merge_request.all_pipelines.size
+              %span.badge= @pipelines.size
           %li.builds-tab
             = link_to builds_namespace_project_merge_request_path(@project.namespace, @project, @merge_request), data: { target: '#builds', action: 'builds', toggle: 'tab' } do
               Builds