Created
September 10, 2013 06:29
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Potential fix for Virtus::ValueObjects inheritance issue
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require "virtus" | |
class Teacher | |
include Virtus::ValueObject | |
attribute :id, String | |
def self.inherited(descendant) | |
super | |
descendant.define_singleton_method(:equalizer) do | |
@equalizer ||= | |
begin | |
equalizer = Equalizer.new(name || inspect) | |
include equalizer | |
attribute_set.each do |attribute| | |
equalizer << attribute.name | |
end | |
equalizer | |
end | |
end | |
end # self.inherited | |
end | |
class TeachingAssistant < Teacher | |
attribute :major, String | |
end | |
ta1 = TeachingAssistant.new(id: 1) | |
ta2 = TeachingAssistant.new(id: 2) | |
puts ta1.inspect | |
# => #<TeachingAssistant id="1" major=nil> | |
puts ta1.id | |
# => 1 | |
puts ta2.inspect | |
# #<TeachingAssistant id="2" major=nil> | |
puts ta2.id | |
# => 2 | |
puts ta1 == ta2 | |
# false | |
puts ta1.eql? ta2 | |
# false |
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