My bad, I haven’t used google groups for a long time forgot about it. I found 
this method object.method(:method_name).source_location . Apparently comes from 
active model 
/.rvm/gems/ruby-2.0.0-p353/gems/activemodel-4.0.2/lib/active_model/attribute_methods.rb",
 382]. Thanks for the help
On 20 Dec, 2013, at 1:10 am, Colin Law <[email protected]> wrote:

> On 19 December 2013 16:56,  <[email protected]> wrote:
>> Colin yes if i uncomment it out does still run but how do i find where the
>> code replication takes place? I think its one of the additional gems but i
>> don't know how to search for where this method exists
> 
> Please don't top post, it makes it difficult to follow the thread.  Thanks.
> 
> As I said if you have a look at the rails guide on debugging it will
> show you how you can step into the code.  Also you could do a global
> text search in your application and gems directories.
> 
> Are you using Devise?  If so I would start there.  Googling for the
> method name gave me that clue.
> 
> Colin
> 
>> 
>> On Friday, December 20, 2013 12:50:45 AM UTC+8, Colin Law wrote:
>>> 
>>> On 19 December 2013 16:41,  <[email protected]> wrote:
>>>> I am having problems calling a method reset_authentication_token! . if i
>>>> just leave the method as it is with the ! behind it the method is simply
>>>> ignored when the program is run (none of the logger methods inside the
>>>> method is called.) But if i add any other character into it the method
>>>> gets
>>>> called
>>>> 
>>>> Below is the module of the methods.
>>>> This module is included in user.rb
>>>> 
>>>> The module auth_token.rb
>>>> http://pastie.org/8563575
>>>> 
>>>> The user.rb
>>>> 
>>>> http://pastie.org/8563585
>>>> 
>>>> This is the session_controller.rb file
>>>> 
>>>> http://pastie.org/8563578
>>>> 
>>>> The reset_authentication_token! is called from the main create method
>>>> which
>>>> calls the @user.ensure_authentication_token!
>>> 
>>> Is it possible that there is another method
>>> reset_authentication_token! in the system somewhere?  If you comment
>>> out your method and run the code do you get a runtime no method error?
>>> If not then there is another method of this name.
>>> 
>>> For the future, have a look at the Rails Guide on debugging to see how
>>> to debug your code and see what is happening by stepping into that
>>> method.
>>> 
>>> Colin
>>> 
>>>> 
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