Module: Mongoid::StateMachine::ActMacro

Defined in:
lib/mongoid/state_machine.rb

Instance Method Summary collapse

Instance Method Details

#state_machine(options = {}) ⇒ Object

Configuration options are

  • column - specifies the column name to use for keeping the state (default: state)

  • initial - specifies an initial state for newly created objects (required)



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# File 'lib/mongoid/state_machine.rb', line 116

def state_machine(options = {})
  class_eval do
    extend ClassMethods
    include InstanceMethods

    raise NoInitialState unless options[:initial]

    write_inheritable_attribute :states, {}
    write_inheritable_attribute :initial_state, options[:initial]
    write_inheritable_attribute :transition_table, {}
    write_inheritable_attribute :event_table, {}
    write_inheritable_attribute :state_column, options[:column] || 'state'

    class_inheritable_reader    :initial_state
    class_inheritable_reader    :state_column
    class_inheritable_reader    :transition_table
    class_inheritable_reader    :event_table

    before_create               :set_initial_state
    after_create                :run_initial_state_actions
  end
end