Revert "Reverse pipelines controller changes"

This reverts commit 0a60cdb110754a5e894ca1a2aa619842f2d98d1a.

app/controllers/projects/pipelines_controller.rb

+module ActiveRecord
+  class QueryRecorder
+    attr_reader :log
+    attr_reader :start
+    attr_reader :end
+
+    def initialize(&block)
+      @log = []
+      @start = Time.now
+      ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block)
+      @end = Time.now
+    end
+
+    def callback(name, start, finish, message_id, values)
+      return if %w(SCHEMA).include?(values[:name])
+      @log << values[:sql]
+    end
+
+    def time
+      @end - @start
+    end
+
+    def count
+      @log.count
+    end
+
+    def log_message
+      @log.join("\n\n")
+    end
+  end
+end
+
 class Projects::PipelinesController < Projects::ApplicationController
   before_action :pipeline, except: [:index, :new, :create, :charts]
   before_action :commit, only: [:show, :builds]
@@ -29,18 +61,15 @@ class Projects::PipelinesController < Projects::ApplicationController
     respond_to do |format|
       format.html
       format.json do
-        render json: {
-          pipelines: PipelineSerializer
+        result = nil
+        queries = ActiveRecord::QueryRecorder.new do
+          result = PipelineSerializer
             .new(project: @project, user: @current_user)
             .with_pagination(request, response)
-            .represent(@pipelines),
-          count: {
-            all: @pipelines_count,
-            running: @running_count,
-            pending: @pending_count,
-            finished: @finished_count,
-          }
-        }
+            .represent(@pipelines)
+        end
+
+        render json: { aa_queries: queries.count, aa_time: queries.time, result: result }
       end
     end
   end