Rails - Apr 2006 - Using before_create and conflicting setter method...

Hi,

I am having trouble using before_create when I have an specialized  
setter method:

   before_save     :set_campaign_start

    
#----------------------------------------------------------------------- 
-------
   def set_campaign_start
     self.campaign_start = Time.now
   end

   # We want the date to always start at midnight
    
#----------------------------------------------------------------------- 
-------
   def campaign_start=(new_time)
     @campaign_start = new_time.utc.at_beginning_of_day
   end

It sets @campaign_start in the object, but not the actual attribute,  
and therefore not in the DB.  If I remove the setter method, the  
before_create works great.  What is the correct way to do this?

Thanks,
Brett

Hello Brett,
> I am having trouble using before_create when I have an specialized
> setter method:
>
>    before_save     :set_campaign_start
>
>
> #-----------------------------------------------------------------------
> -------
>    def set_campaign_start
>      self.campaign_start = Time.now
>    end
>
>    # We want the date to always start at midnight
>
> #-----------------------------------------------------------------------
> -------
>    def campaign_start=(new_time)
>      @campaign_start = new_time.utc.at_beginning_of_day
>    end
>
> It sets @campaign_start in the object, but not the actual attribute,
> and therefore not in the DB.  If I remove the setter method, the
> before_create works great.  What is the correct way to do this?
def campaign_start=(new_time)
  write_attribute("campaign_start", new_time.utc.at_beginning_of_day)
end

But I''m not sure I''ve understood your pb correctly.

    -- Jean-Fran?ois.

--
? la renverse.

Jean-Fran?ois,
>> I am having trouble using before_create when I have an specialized
>> setter method:
>>
>>    before_save     :set_campaign_start
>>
>>
>> #-------------------------------------------------------------------- 
>> ---
>> -------
>>    def set_campaign_start
>>      self.campaign_start = Time.now
>>    end
>>
>>    # We want the date to always start at midnight
>>
>> #-------------------------------------------------------------------- 
>> ---
>> -------
>>    def campaign_start=(new_time)
>>      @campaign_start = new_time.utc.at_beginning_of_day
>>    end
>>
>> It sets @campaign_start in the object, but not the actual attribute,
>> and therefore not in the DB.  If I remove the setter method, the
>> before_create works great.  What is the correct way to do this?
>
> def campaign_start=(new_time)
>   write_attribute("campaign_start",
new_time.utc.at_beginning_of_day)
> end
>
> But I''m not sure I''ve understood your pb correctly.
That did the trick.  Most examples I had seen showed using the  
instance variable when overriding the assignment method.  But I guess  
since I''m trying to do an assignment in the before_create, some  
connection was not made yet.  The "campaign_start" attribute was not  
getting set, just the instance variable.

Anyway, worked like a charm.  Thanks!

Brett