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			36 lines
		
	
	
		
			846 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			846 B
		
	
	
	
		
			Python
		
	
	
	
	
	
| # coding: utf-8
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| from django.db import models
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| from django.utils.encoding import python_2_unicode_compatible
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| 
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| 
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| class School(models.Model):
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|     name = models.CharField(max_length=100)
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| 
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| 
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| class Parent(models.Model):
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|     name = models.CharField(max_length=100)
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| 
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| 
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| class Child(models.Model):
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|     mother = models.ForeignKey(Parent, related_name='mothers_children')
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|     father = models.ForeignKey(Parent, related_name='fathers_children')
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|     school = models.ForeignKey(School)
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|     name = models.CharField(max_length=100)
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| 
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| 
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| @python_2_unicode_compatible
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| class Poet(models.Model):
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|     name = models.CharField(max_length=100)
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| 
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|     def __str__(self):
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|         return self.name
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| 
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| 
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| @python_2_unicode_compatible
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| class Poem(models.Model):
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|     poet = models.ForeignKey(Poet)
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|     name = models.CharField(max_length=100)
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| 
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|     def __str__(self):
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|         return self.name
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