Rails - Oct 2006 - Purpose of after_initialize in ActiveRecord?

All,

I have a quick question - is the purpose of implementing 
after_initialize to allow custom attribute initialization for AR 
descendants?

I have been overriding initialize whenever I require custom setup of my 
model classes, like so:

  def initialize(attributes = nil)
    super
    self.Status = ''G''
  end

So I have a couple of questions:

1) Could I achieve the same result as above with

  def after_initialize
    self.Status = ''G''
  end
?

2) Due to the specialities about how ActiveRecord descendants are 
created, is it somehow "better" to use after_initialize vs. overriding
initialize directly?

3) Can anyone share some other useful application of after_initialize 
besides doing attribute initialization?

Thanks,
Wes

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You should use after_initialize or you might find yourself running into
some weird errors.


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What is the correct method visibility for after_initialize?


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On 10/27/06, Wes Gamble
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
>
> What is the correct method visibility for after_initialize?
>
>
protected

-- 
Kent
---
http://www.datanoise.com

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On 10/27/06, ljredpath-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<ljredpath-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> You should use after_initialize or you might find yourself running into
> some weird errors.
What kind of errors and why?  Calling super before your own init code
seems logically equivelent  to a filter and is more simple/OO.  If
using good OO design principles breaks the framework (FYI, this hasn''t
bitten me) I''d argue the framework needs fixing.  Either way,
it''s
helpful to get an explanation so we all learn something rather than
just sying "don''t do that, it''s bad."

Thanks,

pt.
>
>
> >
>

-- 
Parker Thompson
http://www.parkert.com/
510.541.0125

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See here 
http://blog.dalethatcher.com/2008/03/rails-dont-override-initialize-on.html
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