module DefaultValues::DSL::ClassMethods

Public Instance Methods

default_values(defaults = {}, &block) click to toggle source
# File lib/default_values/dsl.rb, line 6
def default_values(defaults = {}, &block)
  define_method(:initialize_with_default_values) do |*attributes, &inner_block|
    values = defaults
    values = values.merge(block.call) if block_given?
    values = Hash[values.each_pair.map { |key, value| [key, value.is_a?(Proc) ? value.call : value] }]

    initialize_without_default_values(*attributes, &inner_block)

    values.each_pair do |key, value|
      write_attribute(key, value) unless attribute_present?(key)
    end
  end
  alias_method_chain :initialize, :default_values
end