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47 lines
1.1 KiB
Python
47 lines
1.1 KiB
Python
"""
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Tests for defer() and only().
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"""
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from django.db import models
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class Secondary(models.Model):
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first = models.CharField(max_length=50)
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second = models.CharField(max_length=50)
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class Primary(models.Model):
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name = models.CharField(max_length=50)
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value = models.CharField(max_length=50)
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related = models.ForeignKey(Secondary, models.CASCADE)
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def __str__(self):
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return self.name
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class Child(Primary):
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pass
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class BigChild(Primary):
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other = models.CharField(max_length=50)
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class ChildProxy(Child):
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class Meta:
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proxy = True
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class RefreshPrimaryProxy(Primary):
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class Meta:
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proxy = True
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def refresh_from_db(self, using=None, fields=None, **kwargs):
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# Reloads all deferred fields if any of the fields is deferred.
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if fields is not None:
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fields = set(fields)
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deferred_fields = self.get_deferred_fields()
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if fields.intersection(deferred_fields):
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fields = fields.union(deferred_fields)
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super().refresh_from_db(using, fields, **kwargs)
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