That should work.  Thanks for the suggestion.

robbie

On Sunday, May 25, 2014 1:31:20 AM UTC-4, WongoBongo wrote:
>
> Might try removing the default from x_pos then try setting it by 
> overriding the save method
>
>
> https://docs.djangoproject.com/en/1.4/topics/db/models/#overriding-predefined-model-methods
>
> K
>
> On Saturday, May 24, 2014 8:28:17 PM UTC-7, Robbie Edwards wrote:
>>
>> Hi, I have some code like such...
>>
>>
>> def gen_planet_pos( max_dim ):
>>     return random.randint( 0, max_dim )
>>
>>
>> class Universe( models.Model ):
>>     width = models.IntegerField( default=100 )
>>     ...
>>
>>
>> class Planet( models.Model ):
>>     universe = models.ForeignKey( Universe )
>>     ...
>>     x_pos = models.IntegerField( default=gen_planet_pos( universe.width ) 
>> )
>>
>>
>> When I try to use this, I get "AttributeError: 'ForeignKey' object has no 
>> attribute 'width'".  That message appears when I try to even enter the 
>> shell.  I'm not sure what to do to prevent this error.  Your help is 
>> appreciated.
>>
>> robbie 
>>
>

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