Rails - Nov 2005 - overriding initialize or new for a subclass of ActiveRecord

Hi,

I''m trying to override ''initialize'' for a subclass of
ActiveRecord::Base
(a model) and the code isn''t getting hit.  I''ve also tried
overriding
''new'' to no avail.  Is there a trick to this?  I''m
fairly new to Ruby
and Rails so it is probably something simple.

Thanks,
Jonathan

-- 
Posted via http://www.ruby-forum.com/.

Hi Jonathan,

Make sure you call super ie.

def initialize
   super

   # ... do stuff ...
end

   - John

On 25/11/2005, at 2:11 PM, Jonathan Leonard wrote:
> Hi,
>
> I''m trying to override ''initialize'' for a
subclass of
> ActiveRecord::Base
> (a model) and the code isn''t getting hit.  I''ve also
tried overriding
> ''new'' to no avail.  Is there a trick to this? 
I''m fairly new to Ruby
> and Rails so it is probably something simple.
>
> Thanks,
> Jonathan
>
> -- 
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
--
John Meredith <jmeredith-0iPedL6B8ETQT0dZR+AlfA@public.gmane.org>

Thanks for the answer, but I tried that as well. I put a breakpoint in 
the func like so:

def initialize
  breakpoint
  super
  # other stuff
end

and the breakpoint never gets hit.

--Jonathan



john wrote:
> Hi Jonathan,
> 
> Make sure you call super ie.
> 
> def initialize
>    super
> 
>    # ... do stuff ...
> end
> 
>    - John
> 
> On 25/11/2005, at 2:11 PM, Jonathan Leonard wrote:
> 
>>
>> -- 
>> Posted via http://www.ruby-forum.com/.
>> _______________________________________________
>> Rails mailing list
>> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
>> http://lists.rubyonrails.org/mailman/listinfo/rails
> 
> --
> John Meredith <jmeredith-0iPedL6B8ETQT0dZR+AlfA@public.gmane.org>

-- 
Posted via http://www.ruby-forum.com/.

johanatan wrote:
> Thanks for the answer, but I tried that as well. I put a breakpoint in 
> the func like so:
> 
> def initialize
>   breakpoint
>   super
>   # other stuff
> end
> 
> and the breakpoint never gets hit.
> 
> --Jonathan
 def initialize(attributes = nil)
   super(attributes)
   # other stuff
 end

perhaps. Also, how are you calling the constructor?  Are you 
specifically doing

  MySubClass.new() ?

-Tudor

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Hi !
2005/11/24, John Meredith <john@psynix.com>:
> Make sure you call super ie.
I saw a message, I think it was yesterday, that said you would be
better off if you used after_initialize:

class Model
  def after_initialize
    # do stuff
  end
end

Hope that helps !
--
François Beausoleil
http://blog.teksol.info/

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Johnathan-

	The initialize mthod of your class that inherits from AR::Base does  
not get called in the request/response chain. So you should use a  
befopre_filter instead like this:

class MyModel < ActiveRecord::Base

   before_filter :do_stuff


   def do_stuff
      ...
   end

end

HTH

-Ezra

On Nov 24, 2005, at 8:29 PM, Jonathan Leonard wrote:
> Thanks for the answer, but I tried that as well. I put a breakpoint in
> the func like so:
>
> def initialize
>   breakpoint
>   super
>   # other stuff
> end
>
> and the breakpoint never gets hit.
>
> --Jonathan
>
>
>
> john wrote:
>> Hi Jonathan,
>>
>> Make sure you call super ie.
>>
>> def initialize
>>    super
>>
>>    # ... do stuff ...
>> end
>>
>>    - John
>>
>> On 25/11/2005, at 2:11 PM, Jonathan Leonard wrote:
>>
>>>
>>> -- 
>>> Posted via http://www.ruby-forum.com/.
>>> _______________________________________________
>>> Rails mailing list
>>> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
>>> http://lists.rubyonrails.org/mailman/listinfo/rails
>>
>> --
>> John Meredith <jmeredith-0iPedL6B8ETQT0dZR+AlfA@public.gmane.org>
>
>
> -- 
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
-Ezra Zygmuntowicz
WebMaster
Yakima Herald-Republic Newspaper
ezra-gdxLOakOTQ9oetBuM9ipNAC/G2K4zDHf@public.gmane.org
509-577-7732

Ahh. Thanks, I''ll try that and post back if it doesn''t work.

--Jonathan


ezra wrote:
> Johnathan-
> 
> 	The initialize mthod of your class that inherits from AR::Base does
> not get called in the request/response chain. So you should use a
> befopre_filter instead like this:
> 
> class MyModel < ActiveRecord::Base
> 
>    before_filter :do_stuff
> 
> 
>    def do_stuff
>       ...
>    end
> 
> end
> 
> HTH
> 
> -Ezra
> 
-- 
Posted via http://www.ruby-forum.com/.

ezra wrote:
> Johnathan-
> 
> 	The initialize mthod of your class that inherits from AR::Base does
> not get called in the request/response chain. So you should use a
> befopre_filter instead like this:
> 
> class MyModel < ActiveRecord::Base
> 
>    before_filter :do_stuff
> 
> 
>    def do_stuff
>       ...
>    end
> 
> end
> 
> HTH
> 
> -Ezra
This is not working.  It says ''undefined method:
before_filter.''  I
noticed that this is used in the controllers (for the login 
functionality).  Could it be for controllers only?

--Jonathan



-- 
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francois.beausoleil wrote:
> Hi !
> 2005/11/24, John Meredith
<john-0iPedL6B8ETQT0dZR+AlfA@public.gmane.org>:
>> Make sure you call super ie.
> 
> I saw a message, I think it was yesterday, that said you would be
> better off if you used after_initialize:
> 
> class Model
>   def after_initialize
>     # do stuff
>   end
> end
> 
> Hope that helps !
That works.  Thanks!


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