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			13 lines
		
	
	
		
			340 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			13 lines
		
	
	
		
			340 B
		
	
	
	
		
			Python
		
	
	
	
	
	
| from django.db import models
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| 
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| class SourceManager(models.Manager):
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|     def get_query_set(self):
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|         return super(SourceManager, self).get_query_set().filter(is_public=True)
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| 
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| class Source(models.Model):
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|     is_public = models.BooleanField()
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|     objects = SourceManager()
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| 
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| class Item(models.Model):
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|     source = models.ForeignKey(Source)
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