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django/tests/postgres_tests/models.py
Marc Tamlyn 39d95fb6ad Fixed #24092 -- Widened base field support for ArrayField.
Several issues resolved here, following from a report that a base_field
of GenericIpAddressField was failing.

We were using get_prep_value instead of get_db_prep_value in ArrayField
which was bypassing any extra modifications to the value being made in
the base field's get_db_prep_value. Changing this broke datetime
support, so the postgres backend has gained the relevant operation
methods to send dates/times/datetimes directly to the db backend instead
of casting them to strings. Similarly, a new database feature has been
added allowing the uuid to be passed directly to the backend, as we do
with timedeltas.

On the other side, psycopg2 expects an Inet() instance for IP address
fields, so we add a value_to_db_ipaddress method to wrap the strings on
postgres. We also have to manually add a database adapter to psycopg2,
as we do not wish to use the built in adapter which would turn
everything into Inet() instances.

Thanks to smclenithan for the report.
2015-01-16 16:15:16 -05:00

65 lines
1.9 KiB
Python

from django.contrib.postgres.fields import (
ArrayField, HStoreField, IntegerRangeField, BigIntegerRangeField,
FloatRangeField, DateTimeRangeField, DateRangeField,
)
from django.db import connection, models
class IntegerArrayModel(models.Model):
field = ArrayField(models.IntegerField())
class NullableIntegerArrayModel(models.Model):
field = ArrayField(models.IntegerField(), blank=True, null=True)
class CharArrayModel(models.Model):
field = ArrayField(models.CharField(max_length=10))
class DateTimeArrayModel(models.Model):
datetimes = ArrayField(models.DateTimeField())
dates = ArrayField(models.DateField())
times = ArrayField(models.TimeField())
class NestedIntegerArrayModel(models.Model):
field = ArrayField(ArrayField(models.IntegerField()))
class OtherTypesArrayModel(models.Model):
ips = ArrayField(models.GenericIPAddressField())
uuids = ArrayField(models.UUIDField())
decimals = ArrayField(models.DecimalField(max_digits=5, decimal_places=2))
class HStoreModel(models.Model):
field = HStoreField(blank=True, null=True)
class CharFieldModel(models.Model):
field = models.CharField(max_length=16)
class TextFieldModel(models.Model):
field = models.TextField()
# Only create this model for databases which support it
if connection.vendor == 'postgresql' and connection.pg_version >= 90200:
class RangesModel(models.Model):
ints = IntegerRangeField(blank=True, null=True)
bigints = BigIntegerRangeField(blank=True, null=True)
floats = FloatRangeField(blank=True, null=True)
timestamps = DateTimeRangeField(blank=True, null=True)
dates = DateRangeField(blank=True, null=True)
else:
# create an object with this name so we don't have failing imports
class RangesModel(object):
pass
class ArrayFieldSubclass(ArrayField):
def __init__(self, *args, **kwargs):
super(ArrayFieldSubclass, self).__init__(models.IntegerField())