Contents

require 'aldous/respondable/base'
require 'aldous/controller/action/precondition/wrapper'

module Aldous
  module Controller
    class PreconditionsExecutionService
      attr_reader :action, :controller

      def initialize(action, controller)
        @action = action
        @controller = controller
      end

      def perform
        if action.respond_to?(:preconditions) && !action.preconditions.empty?
          action.preconditions.each do |precondition_class|
            # action here is actually an action wrapper hence the
            # action.controller_action below
            precondition = precondition_class.build(action.controller_action)
            precondition_result = precondition.perform

            if precondition_result.kind_of?(::Aldous::Respondable::Base)
              return [precondition, precondition_result]
            end
          end
        end
        [nil, nil]
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
aldous-1.0.1	lib/aldous/controller/preconditions_execution_service.rb
aldous-1.0.0	lib/aldous/controller/preconditions_execution_service.rb