Module: Switcher::ActiveRecord::ClassMethods

Defined in:
lib/switcher/adapters/active_record.rb

Instance Method Summary collapse

Instance Method Details

#switcher_pre_initialize(inst, spec) ⇒ Object 



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# File 'lib/switcher/adapters/active_record.rb', line 8

def switcher_pre_initialize(inst, spec)
  inst.class_eval do
    spec_name = spec.name

    define_method(:"#{spec_name}_spec") { spec }
    define_method(:"#{spec_name}_prev") { self.instance_variable_get(:"@#{spec_name}_statement").state_prev }

    define_method(:"#{spec_name}") { self.instance_variable_get(:"@#{spec_name}_statement").state_current }
    define_method(:"#{spec_name}=") { nil } # FIXME - raise exception

    define_method(:"#{spec_name}_force") { |state| self.instance_variable_get(:"@#{spec_name}_statement").force_state(state.to_sym) }

    events = []

    spec.states.each_pair do |state_name, state|
      define_method(:"#{spec_name}_#{state_name}?") do
        state_name == self.send(:"#{spec_name}")
      end

      events << state.event_names
    end

    events.flatten.each do |event_name|
      define_method(:"can_#{event_name}?") do
        self.class.class_variable_get(:@@__specs__).map { |spc|
          spc.states[self.send(:"#{spc.name}")].event_names.include?(event_name)
        }.include?(true)
      end

      define_method(:"#{event_name}!") do |*args|
        switch_from(nil, event_name, *args)
      end
    end

  end
end