Module: Mobility::Backend::ActiveModel::Dirty::ClassMethods

Defined in:
lib/mobility/backend/active_model/dirty.rb

Overview

Adds hook after Setup#setup_model to add dirty-tracking methods for translated attributes onto model class.

Instance Method Summary collapse

Instance Method Details

#setup_model(model_class, attributes, **options) ⇒ Object

Call setup block on a class with attributes and options.

Parameters:

  • model_class —

    Class to be setup-ed

  • attributes (Array<String>)
  • options (Hash) 


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# File 'lib/mobility/backend/active_model/dirty.rb', line 46

def setup_model(model_class, attributes, **options)
  super
  model_class.class_eval do
    %w[changed? change was will_change! previously_changed? previous_change].each do |suffix|
      attributes.each do |attribute|
        class_eval "          def \#{attribute}_\#{suffix}\n            attribute_\#{suffix}(\"\#{attribute}_#\\{Mobility.locale\\}\")\n          end\n        EOM\n      end\n    end\n  end\n\n  restore_methods = Module.new do\n    attributes.each do |attribute|\n      locale_accessor = \"\#{attribute}_\#{Mobility.locale}\"\n      define_method \"restore_\#{attribute}!\" do\n        if attribute_changed?(locale_accessor)\n          __send__(\"\#{attribute}=\", changed_attributes[locale_accessor])\n        end\n      end\n    end\n\n    define_method :restore_attribute! do |attr|\n      if attributes.include?(attr.to_s)\n        send(\"restore_\#{attr}!\")\n      else\n        super(attr)\n      end\n    end\n    private :restore_attribute!\n  end\n  model_class.include restore_methods\nend\n", __FILE__, __LINE__ + 1