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			26 lines
		
	
	
	
		
			609 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
	
		
			609 B
		
	
	
	
		
			Python
		
	
	
	
	
	
from django.db import models
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class Poll(models.Model):
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    question = models.CharField(max_length=200)
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class Choice(models.Model):
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    poll = models.ForeignKey(Poll, models.CASCADE)
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    choice = models.CharField(max_length=200)
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# A set of models with an inner one pointing to two outer ones.
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class OuterA(models.Model):
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    pass
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class OuterB(models.Model):
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    data = models.CharField(max_length=10)
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class Inner(models.Model):
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    first = models.ForeignKey(OuterA, models.CASCADE)
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    # second would clash with the __second lookup.
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    third = models.ForeignKey(OuterB, models.SET_NULL, null=True)
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