A bug in rails? About model inherited
-
28-09-2019 - |
Question
My env: ruby-1.9.2-preview3; rails-3.0.0.beta3
class PostFather < ActiveRecord::Base
def self.inherited(subclass)
end
end
class Post < PostFather
end
In the console:
> Post.new # => TypeError: can't dup NilClass
> Post.all # => TypeError: can't dup NilClass
> Post.scoped # => TypeError: can't dup NilClass
You can try it yourself;
Solution
ActiveRecord is using the inherited method, you need to call super so the ActiveRecord stuff still runs:
class PostFather < ActiveRecord::Base
def self.inherited(subclass)
super(subclass)
end
end
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