Easy querying of rails methods in console

April 13th, 2007

When debugging or inspecting Rails code, it is often nice to see just those methods that are added by rails or custom ActiveRecord object. This simple addition to ~/.irbrc does just that:

if ENV['RAILS_ENV']
  class Object
    protected    
    def rails_meths; (public_methods - Object.public_instance_methods).sort; end
    def cust_rails_meths
      (rails_meths - ActiveRecord::Base.public_instance_methods).sort; 
    end
  end
end
.

Now you can fire up script/console, and do stuff such as

>> item = MyOwnModelClass.find(42) >> item.public_methods # shows so much stuff >> item.rails_meths # shows only rails stuff >> item.cust_rails_meths # even more terse listing

Of course, you were aware of obj.attributes already.

Posted by edvard Filed in

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