gitlab-org--gitlab-foss/app/controllers/admin/applications_controller.rb
Stan Hu 08c3e59aee Optimize /admin/applications so that it does not timeout
On our dev instance, /admin/applications as not loading because:

1. There was an unindexed query by `application_id`.
2. There was an expensive query that attempted to load 1 million
   unique entries via ActiveRecord just to find the unique count.

We fix the first issue by adding an index for that column.

We fix the second issue with a simple SELECT COUNT(DISTINCT
resource_owner_id) SQL query.

In addition, we add pagination to avoid loading more than 20
applications at once.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/67228
2019-09-09 21:51:57 -07:00

60 lines
1.6 KiB
Ruby

# frozen_string_literal: true
class Admin::ApplicationsController < Admin::ApplicationController
include OauthApplications
before_action :set_application, only: [:show, :edit, :update, :destroy]
before_action :load_scopes, only: [:new, :create, :edit, :update]
def index
applications = ApplicationsFinder.new.execute
@applications = Kaminari.paginate_array(applications).page(params[:page])
@application_counts = OauthAccessToken.distinct_resource_owner_counts(@applications)
end
def show
end
def new
@application = Doorkeeper::Application.new
end
def edit
end
def create
@application = Applications::CreateService.new(current_user, application_params).execute(request)
if @application.persisted?
flash[:notice] = I18n.t(:notice, scope: [:doorkeeper, :flash, :applications, :create])
redirect_to admin_application_url(@application)
else
render :new
end
end
def update
if @application.update(application_params)
redirect_to admin_application_path(@application), notice: _('Application was successfully updated.')
else
render :edit
end
end
def destroy
@application.destroy
redirect_to admin_applications_url, status: 302, notice: _('Application was successfully destroyed.')
end
private
def set_application
@application = ApplicationsFinder.new(id: params[:id]).execute
end
# Only allow a trusted parameter "white list" through.
def application_params
params.require(:doorkeeper_application).permit(:name, :redirect_uri, :trusted, :scopes)
end
end