Rails - Jun 2008 - Setting expiration date based on creation date in model?

Hi,

I am handling some records that have expiration date. Records should
expire 30 days after its creation.

I could add the logic in the controller but I think that should/could be
done in the model.

How can I do that in the model?
Why is it better in the model than in the controller?

Thanks.
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On 30 Jun 2008, at 08:20, comopasta Gr wrote:
>
> Hi,
>
> I am handling some records that have expiration date. Records should
> expire 30 days after its creation.
>
> I could add the logic in the controller but I think that should/ 
> could be
> done in the model.
>
> How can I do that in the model?
def self.expire!
   expirable = find :all, :conditions => ["created_at < ?",
30.days.ago]
   # do something with expirable
end
>
> Why is it better in the model than in the controller?
Because it''s none of your controller''s business.

Fred

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Thank you Fred!

Excuse my ignorance but is the function called automatically?
I''ve seen the ! ending in some functions, I wonder what is the meaning 
of it.

I have a couple of books on RoR, I think I need new ones already 
covering more stuff right now ;-)

Thanks!




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On 30 Jun 2008, at 11:32, comopasta Gr wrote:
>
> Thank you Fred!
>
> Excuse my ignorance but is the function called automatically?
Nope
>
> I''ve seen the ! ending in some functions, I wonder what is the
meaning
> of it.
>
Whatever meaning it has is usually a convention (eg on String methods  
with a ! modify inplace, the ones without return a copy with that  
modification (eg gsub and gsub!).
As far as ruby itself is concerned it makes no difference
Fred


> I have a couple of books on RoR, I think I need new ones already
> covering more stuff right now ;-)
>
> Thanks!
>
>
>
>
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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>> ...is the function called automatically?
> 
> Nope
Sorry again, so from where and by who should that function be called? A 
cron job for example?

Thanks once again.
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On 30 Jun 2008, at 11:50, comopasta Gr wrote:
>
>>> ...is the function called automatically?
>>
>> Nope
>
> Sorry again, so from where and by who should that function be  
> called? A
> cron job for example?
For example. I didn''t say anything about that because I
haven''t the
faintest clue when you want it called.

Fred
>
>
> Thanks once again.
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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expirable = find :all, :conditions => ["created_at < ?",
30.days.ago]
   # do something with expirable

     This u can write as a rake task and can be called it from cron

Sijo
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Thanks guys. Looks clear now.

Cheers.
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