mirror of https://github.com/django/django.git
30 lines
740 B
Python
30 lines
740 B
Python
"""
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Existing related object instance caching.
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Queries are not redone when going back through known relations.
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"""
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from django.db import models
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class Tournament(models.Model):
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name = models.CharField(max_length=30)
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class Organiser(models.Model):
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name = models.CharField(max_length=30)
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class Pool(models.Model):
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name = models.CharField(max_length=30)
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tournament = models.ForeignKey(Tournament, models.CASCADE)
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organiser = models.ForeignKey(Organiser, models.CASCADE)
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class PoolStyle(models.Model):
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name = models.CharField(max_length=30)
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pool = models.OneToOneField(Pool, models.CASCADE)
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another_pool = models.OneToOneField(
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Pool, models.CASCADE, null=True, related_name="another_style"
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)
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