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Refs #31051 -- Fixed reloading the database with circular related objects and natural keys for tests.

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Made deserialize_db_from_string() do not sort dependencies.

deserialize_db_from_string() doesn't use natural keys, so there is no
need to sort dependencies in serialize_db_to_string(). Moreover,
sorting models cause issues for circular dependencies.
This commit is contained in:
Matthijs Kooijman 2019-12-02 01:16:32 +01:00 • committed by Mariusz Felisiak
parent 12e6f573ad
commit 289d0ec6fd
3 changed files with 46 additions and 5 deletions
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16
tests/backends/models.py
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@ -107,6 +107,22 @@ class ObjectSelfReference(models.Model):
obj = models.ForeignKey('ObjectSelfReference', models.SET_NULL, null=True)
class CircularA(models.Model):
key = models.CharField(max_length=3, unique=True)
obj = models.ForeignKey('CircularB', models.SET_NULL, null=True)
def natural_key(self):
return (self.key,)
class CircularB(models.Model):
key = models.CharField(max_length=3, unique=True)
obj = models.ForeignKey('CircularA', models.SET_NULL, null=True)
def natural_key(self):
return (self.key,)
class RawData(models.Model):
raw_data = models.BinaryField()