How to define inspect for a custom class, to make it AP compatible?

[konung]

Hi

Not a bug, just wondering what does ap expect from MyCustomClass.inspect, in order to get pretty printed output like it does in Rails ?

Right now MyCustomClass.inspect return hash of {:attribute => value}, and that seems to work, but it doesn't look exactly the same. Thanks

[michaeldv]

Check out lib/awesome_print/ext directory for examples on how to do it.

HTH ;-) Michael

[benlieb]

This seemed to work for me:

  def to_hash
    ATTRS.inject({}){|cont, attr| cont[attr] = self.send(attr); cont}
  end

From the AP source: https://github.com/michaeldv/awesome_print/blob/master/lib/awesome_print/formatter.rb

    def convert_to_hash(object)
      if ! object.respond_to?(:to_hash)
        return nil
      end
      if object.method(:to_hash).arity != 0
        return nil
      end

      hash = object.to_hash
      if ! hash.respond_to?(:keys) || ! hash.respond_to?('[]')
        return nil
      end

      return hash
    end