Hello,

I am trying to set a default value for attribute threshold in this code, 
the threshold should be the current level*50 and this is the model

class Level (models.Model):
name = models.CharField(max_length=20,null=True, blank=True)
description = models.CharField(max_length=20, null=True, blank=True)
number = models.IntegerField(null=True, blank=True)
threshold = models.IntegerField(null=True, 
blank=True,default=50*number,editable=False)

i get an error unsupported operand types for * : 'int' and 'IntegerField'

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