systemé demo

demo_controller.rb

module Interviews
  class DemoController < Interviews::ApplicationController

    # explicit call of ask is not needed, implicit call will be perform when needed

    def show
      ask(:interview, :other_interviews) 
    end

    def index
      ask(:interviews)
    end

  end
end

systeme_init.rb

require "interviews/engine"
require 'systeme'

module Interviews
  module API
    include Systeme::QueryDSL
    extend Systeme::WrapperDSL

    # return all intervies on every unqualified query in the demo controller (just a namespace)
    query[:demo], [:city_id] do  |args, scope|
      Interviews::Models::Interview.where(city_id: args.city_id).includes(:author)
    end

    # qualification path: demo -> demo show -> demo show interview, 
    # so in scope will be all intervies (see previous declaration)
    query [:demo, :show, :interview], [:id] do |args, scope|
      scope.where(id, args.id).first
    end

    # globs are allowed
    query [:*, :other_interviews] do |args, scope|
      scope.order('random()').limit(3)
    end
  end
end