On 20 Jan 2009, at 22:28, David Law wrote:
> > I understand that. I'm not particularly familiar with class << self > but it seems that everything within its bounds is considered a > instance method. In this case would I simply put respond_to? > (:inherited_with_facebooker)? Sorry to be bugging you so frequently, > just trying to understand this as best as I can. Thank you for all > your help. I'd check WhateverClass.method_defined? Fred > > > David > > On Jan 20, 1:51 pm, Frederick Cheung <[email protected]> > wrote: >> On 20 Jan 2009, at 21:19, David Law wrote: >> >> >> >>> Initially I had self.respond_to? but it did not work either which >>> lead >>> me to believe that it might be a class problem instead of an >>> instance >>> one. Is that what you are referring to? >> >> Not really. What I am saying is that SomeClass.respond_to? :foo >> tells you whether you can do SomeClass.foo, not whether you can do >> some_instance.foo >> >> Fred >> >>> On Jan 20, 12:52 pm, Frederick Cheung <[email protected]> >>> wrote: >>>> On 20 Jan 2009, at 20:48, David Law wrote: >> >>>>> Here you can see the method inherited has been aliased to >>>>> inherited_with_facebooker and inherited_without_facebooker has >>>>> been >>>>> aliased to inherited. However, when the method is called >>>>> inherited_without_facebooker goes into an endless recursive call >>>>> which >>>>> results in a stack level too deep error. I tried to prevent >>>>> alias_method_chain from being called twice (which is what I >>>>> suspect >>>>> the problem being) by checking if inherited_with_facebooker >>>>> already >>>>> exists. It has not seemed to fix the problem. Does anyone else >>>>> have >>>>> a possible solution I may try. Thanks again! >> >>>> You're in the right mindset but you haven't got you're check quite >>>> right. You ask whether the object ActionController::Base (ie the >>>> class) responds to that method and it doesn't so that will always >>>> return false. What you want is whether instances of that class >>>> respond_to your method (so this is the same as >>>> String.respond_to? :strip returning false, "".respond_to? :strip >>>> returns true) >> >>>> Fred > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
