Module: Virtus::Delegate

Extended by:
Delegate
Included in:
Delegate
Defined in:
lib/virtus/delegate.rb

Instance Method Summary collapse

Instance Method Details

#for(klass) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/virtus/delegate.rb', line 9

def for(klass)
  Module.new do
    attr_reader :_target, :_old_targets

    def initialize(target)
      @_target = target
      @_old_targets = []
    end

    klass.attribute_set.each do |attribute|
      define_method(attribute.name) { _target.send(attribute.name) }
      define_method(:"#{attribute.name}=") do |value|
        @_old_targets << _target
        @_target = _target.with(attribute.name => value)
        value
      end
    end
  end
end