module Preferencias::PreferableClassMethods

Public Instance Methods

preference(name, type, *args) click to toggle source
# File lib/preferencias/preferences/preferable_class_methods.rb, line 4
def preference(name, type, *args)
  options = args.extract_options!
  options.assert_valid_keys(:default)
  default = options[:default]
  default = ->{ options[:default] } unless default.is_a?(Proc)

  # cache_key will be nil for new objects, then if we check if there
  # is a pending preference before going to default
  define_method preference_getter_method(name) do
    preferences.fetch(name) do
      default.call
    end
  end

  define_method preference_setter_method(name) do |value|
    value = convert_preference_value(value, type)
    preferences[name] = value

    # If this is an activerecord object, we need to inform
    # ActiveRecord::Dirty that this value has changed, since this is an
    # in-place update to the preferences hash.
    preferences_will_change! if respond_to?(:preferences_will_change!)
  end

  define_method preference_default_getter_method(name), &default

  define_method preference_type_getter_method(name) do
    type
  end
end
preference_default_getter_method(name) click to toggle source
# File lib/preferencias/preferences/preferable_class_methods.rb, line 43
def preference_default_getter_method(name)
  "preferred_#{name}_default".to_sym
end
preference_getter_method(name) click to toggle source
# File lib/preferencias/preferences/preferable_class_methods.rb, line 35
def preference_getter_method(name)
  "preferred_#{name}".to_sym
end
preference_setter_method(name) click to toggle source
# File lib/preferencias/preferences/preferable_class_methods.rb, line 39
def preference_setter_method(name)
   "preferred_#{name}=".to_sym
end
preference_type_getter_method(name) click to toggle source
# File lib/preferencias/preferences/preferable_class_methods.rb, line 47
def preference_type_getter_method(name)
  "preferred_#{name}_type".to_sym
end