Saturday, May 24, 2014

Re: AttributeError when trying to reference ForeignKey attributes

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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