Module: Puret::ActiveRecordExtensions::ClassMethods

Defined in:
lib/puret/active_record_extensions.rb

Instance Method Summary collapse

Instance Method Details

#puret(*attributes) ⇒ Object

Configure translated attributes. Eg:

class Post < ActiveRecord::Base
  puret :title, :description
end


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# File 'lib/puret/active_record_extensions.rb', line 20

def puret(*attributes)
  make_it_puret! unless included_modules.include?(InstanceMethods)

  attributes.each do |attribute|
    # attribute setter
    define_method "#{attribute}=" do |value|
      puret_attributes[I18n.locale][attribute] = value
    end

    # attribute getter
    define_method attribute do
      # return previously setted attributes if present
      return puret_attributes[I18n.locale][attribute] if puret_attributes[I18n.locale][attribute]
      return if new_record?

      # Lookup chain:
      # if translation not present in current locale,
      # use default locale, if present.
      # Otherwise use first translation
      translation = translations.detect { |t| t.locale.to_sym == I18n.locale && t[attribute] } ||
        translations.detect { |t| t.locale.to_sym == puret_default_locale && t[attribute] } ||
        translations.first

      translation ? translation[attribute] : nil
    end

    define_method "#{attribute}_before_type_cast" do
      self.send(attribute)
    end
  end
end

#puret_for(model) ⇒ Object

Configure translation model dependency. Eg:

class PostTranslation < ActiveRecord::Base
  puret_for :post
end


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# File 'lib/puret/active_record_extensions.rb', line 9

def puret_for(model)
  belongs_to model
  validates_presence_of :locale
  validates_uniqueness_of :locale, :scope => "#{model}_id"
end