mirror of
				https://github.com/django/django.git
				synced 2025-10-31 01:25:32 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation
 | |
| from django.contrib.contenttypes.models import ContentType
 | |
| from django.db import models
 | |
| 
 | |
| 
 | |
| class Episode(models.Model):
 | |
|     name = models.CharField(max_length=100)
 | |
|     length = models.CharField(max_length=100, blank=True)
 | |
|     author = models.CharField(max_length=100, blank=True)
 | |
| 
 | |
| 
 | |
| class Media(models.Model):
 | |
|     """
 | |
|     Media that can associated to any object.
 | |
|     """
 | |
| 
 | |
|     content_type = models.ForeignKey(ContentType, models.CASCADE)
 | |
|     object_id = models.PositiveIntegerField()
 | |
|     content_object = GenericForeignKey()
 | |
|     url = models.URLField()
 | |
|     description = models.CharField(max_length=100, blank=True)
 | |
|     keywords = models.CharField(max_length=100, blank=True)
 | |
| 
 | |
|     def __str__(self):
 | |
|         return self.url
 | |
| 
 | |
| 
 | |
| #
 | |
| # Generic inline with unique_together
 | |
| #
 | |
| class Category(models.Model):
 | |
|     name = models.CharField(max_length=50)
 | |
| 
 | |
| 
 | |
| class PhoneNumber(models.Model):
 | |
|     content_type = models.ForeignKey(ContentType, models.CASCADE)
 | |
|     object_id = models.PositiveIntegerField()
 | |
|     content_object = GenericForeignKey("content_type", "object_id")
 | |
|     phone_number = models.CharField(max_length=30)
 | |
|     category = models.ForeignKey(Category, models.SET_NULL, null=True, blank=True)
 | |
| 
 | |
|     class Meta:
 | |
|         unique_together = (
 | |
|             (
 | |
|                 "content_type",
 | |
|                 "object_id",
 | |
|                 "phone_number",
 | |
|             ),
 | |
|         )
 | |
| 
 | |
| 
 | |
| class Contact(models.Model):
 | |
|     name = models.CharField(max_length=50)
 | |
|     phone_numbers = GenericRelation(PhoneNumber, related_query_name="phone_numbers")
 | |
| 
 | |
| 
 | |
| #
 | |
| # Generic inline with can_delete=False
 | |
| #
 | |
| class EpisodePermanent(Episode):
 | |
|     pass
 |