Class: ActionFlow::ActionStep

This class allows the controllers to create action steps. Action steps do nothing but call a method defined in the controller and then route the flow according to it‘s events mapping.

Simple usage

 action_step :action_name do
   on :success => :another_step
   on :back => :yet_another_step
 end

The method identified by :action_name will simply be called and then the flow will be routed to either another_step or yet_another_step steps.

One could also use the action_step instruction to batch define action steps. Simply call the action_step instruction and give it a comma separated list of step names.

 action_step :first_step, :second_step do
   (...)
 end

Inherited instructions

The ViewStep class inherits all the standard step methods defined in FlowStep class.

Methods

execute new

Public Class methods

new( m_action_name )

Initializes the instance

[Source]

# File lib/action_flow/action_step.rb, line 60
    def initialize( m_action_name )

      @action_name = m_action_name

    end

Public Instance methods

execute(*args)

This method is required by the ActionFlow::Base and will be called once it relays the execution to this step instance

[Source]

# File lib/action_flow/action_step.rb, line 71
    def execute(*args)

      # Verify if the controller answers to the @action_name value
      raise ActionFlowError, "The action step #{@action_name} is not defined in your controller." unless args[0].respond_to? lookup_method_to_call(@action_name)
    
      # The controller defines a method with the same name as @action_name.
      # Kewl! A 'someone else problem' !!!
      return args[0].send( lookup_method_to_call( @action_name ) )
  
    end