Method: Mobility::Attributes#initialize

Defined in:
lib/mobility/attributes.rb

#initialize(method, *_attributes, **_options) ⇒ Attributes

Returns a new instance of Attributes.

Parameters:

  • method (Symbol) —

    One of: [reader, writer, accessor]

  • _attributes (Array<String>) —

    Attributes to define backend for

  • _options (Hash) —

    Backend options hash

Options Hash (**_options):

  • model_class (Class) —

    Class of model

  • locale_accessors (Boolean, Array<Symbol>) —

    Enable locale accessors or specify locales for which accessors should be defined on this model backend. Will default to true if dirty option is true.

  • cache (Boolean) — default: true —

    Enable cache for this model backend

  • fallbacks (Boolean, Hash) —

    Enable fallbacks or specify fallbacks for this model backend

  • dirty (Boolean) —

    Enable dirty tracking for this model backend

Raises:

  • (ArgumentError) —

    if method is not reader, writer or accessor

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# File 'lib/mobility/attributes.rb', line 125

def initialize(method, *_attributes, **_options)
  raise ArgumentError, "method must be one of: reader, writer, accessor" unless %i[reader writer accessor].include?(method)
  @options = _options
  @attributes = _attributes.map &:to_s
  model_class = options[:model_class]
  @backend_name = options.delete(:backend) || Mobility.config.default_backend
  @backend_class = Class.new(get_backend_class(backend:     @backend_name,
                                               model_class: model_class))

  options[:locale_accessors] ||= true if options[:dirty]

  @backend_class.configure!(options) if @backend_class.respond_to?(:configure!)

  @backend_class.include Backend::Cache unless options[:cache] == false
  @backend_class.include Backend::Dirty.for(model_class) if options[:dirty]
  @backend_class.include Backend::Fallbacks if options[:fallbacks]
  @accessor_locales = options[:locale_accessors]
  @accessor_locales = Mobility.config.default_accessor_locales if options[:locale_accessors] == true

  attributes.each do |attribute|
    define_backend(attribute)

    if %i[accessor reader].include?(method)
      define_method attribute do |**options|
        mobility_get(attribute, options)
      end

      define_method "#{attribute}?" do |**options|
        mobility_present?(attribute, options)
      end
    end

    define_method "#{attribute}=" do |value|
      mobility_set(attribute, value)
    end if %i[accessor writer].include?(method)

    define_locale_accessors(attribute, @accessor_locales) if @accessor_locales
  end
end