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			57 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			57 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from django.contrib.auth.models import User
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| from django.db import models
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| 
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| 
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| class Band(models.Model):
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|     name = models.CharField(max_length=100)
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|     bio = models.TextField()
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|     sign_date = models.DateField()
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| 
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|     class Meta:
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|         ordering = ("name",)
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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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| class Song(models.Model):
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|     name = models.CharField(max_length=100)
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|     band = models.ForeignKey(Band, models.CASCADE)
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|     featuring = models.ManyToManyField(Band, related_name="featured")
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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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| class Concert(models.Model):
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|     main_band = models.ForeignKey(Band, models.CASCADE, related_name="main_concerts")
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|     opening_band = models.ForeignKey(
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|         Band, models.CASCADE, related_name="opening_concerts", blank=True
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|     )
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|     day = models.CharField(max_length=3, choices=((1, "Fri"), (2, "Sat")))
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|     transport = models.CharField(
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|         max_length=100, choices=((1, "Plane"), (2, "Train"), (3, "Bus")), blank=True
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|     )
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| 
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| 
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| class ValidationTestModel(models.Model):
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|     name = models.CharField(max_length=100)
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|     slug = models.SlugField()
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|     users = models.ManyToManyField(User)
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|     state = models.CharField(
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|         max_length=2, choices=(("CO", "Colorado"), ("WA", "Washington"))
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|     )
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|     is_active = models.BooleanField(default=False)
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|     pub_date = models.DateTimeField()
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|     band = models.ForeignKey(Band, models.CASCADE)
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|     best_friend = models.OneToOneField(User, models.CASCADE, related_name="best_friend")
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|     # This field is intentionally 2 characters long (#16080).
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|     no = models.IntegerField(verbose_name="Number", blank=True, null=True)
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| 
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|     def decade_published_in(self):
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|         return self.pub_date.strftime("%Y")[:3] + "0's"
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| 
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| 
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| class ValidationTestInlineModel(models.Model):
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|     parent = models.ForeignKey(ValidationTestModel, models.CASCADE)
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