Call child's method or cast parent to child in Rails

Posted by Brian on Stack Overflow See other posts from Stack Overflow or by Brian
Published on 2010-03-24T07:00:32Z Indexed on 2010/03/24 7:03 UTC
Read the original article Hit count: 449

Filed under:

ruby-on-rails

I have some STI structure like following:

class Box has_many :part,:class_name = "Part" end

class Part def self.dosomething() end end

class TypeA

class TypeB

assuming we have some codes like boxtypeA = Box.new. I am wondering if there is a way to make boxtypeA.part.dosomething() to call TypeA's method not Part's or TypeB's. I think basically what we need to do is to convert the part to TypeA, how can we achieve that?

Thx in advance!

Call child's method or cast parent to child in Rails

Posted by Brian on Stack Overflow See other posts from Stack Overflow or by Brian
Published on 2010-03-24T07:22:42Z Indexed on 2010/03/24 7:53 UTC
Read the original article Hit count: 449

Filed under:

ruby-on-rails

I have some STI structure like following:

class Box
  has_many :part,:class_name = "Part"
end

class Part
  def self.dosomething()
  end
end

class TypeA<Part
  def self.dosomething()
  end
end


class TypeB<Part
  def self.dosomething()
  end
end

assuming we have some codes like boxtypeA = Box.new. I am wondering if there is a way to make boxtypeA.part.dosomething() to call TypeA's method not Part's or TypeB's. I think basically what we need to do is to convert the part to TypeA, how can we achieve that?

Thx in advance!

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