90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
from django.db import connection, models
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from .fields import (
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ArrayField, BigIntegerRangeField, DateRangeField, DateTimeRangeField,
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FloatRangeField, HStoreField, IntegerRangeField,
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)
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class PostgreSQLModel(models.Model):
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class Meta:
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abstract = True
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required_db_vendor = 'postgresql'
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class IntegerArrayModel(PostgreSQLModel):
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field = ArrayField(models.IntegerField())
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class NullableIntegerArrayModel(PostgreSQLModel):
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field = ArrayField(models.IntegerField(), blank=True, null=True)
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class CharArrayModel(PostgreSQLModel):
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field = ArrayField(models.CharField(max_length=10))
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class DateTimeArrayModel(PostgreSQLModel):
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datetimes = ArrayField(models.DateTimeField())
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dates = ArrayField(models.DateField())
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times = ArrayField(models.TimeField())
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class NestedIntegerArrayModel(PostgreSQLModel):
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field = ArrayField(ArrayField(models.IntegerField()))
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class OtherTypesArrayModel(PostgreSQLModel):
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ips = ArrayField(models.GenericIPAddressField())
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uuids = ArrayField(models.UUIDField())
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decimals = ArrayField(models.DecimalField(max_digits=5, decimal_places=2))
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class HStoreModel(PostgreSQLModel):
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field = HStoreField(blank=True, null=True)
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class CharFieldModel(models.Model):
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field = models.CharField(max_length=16)
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class TextFieldModel(models.Model):
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field = models.TextField()
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# Only create this model for databases which support it
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if connection.vendor == 'postgresql' and connection.pg_version >= 90200:
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class RangesModel(PostgreSQLModel):
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ints = IntegerRangeField(blank=True, null=True)
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bigints = BigIntegerRangeField(blank=True, null=True)
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floats = FloatRangeField(blank=True, null=True)
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timestamps = DateTimeRangeField(blank=True, null=True)
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dates = DateRangeField(blank=True, null=True)
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else:
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# create an object with this name so we don't have failing imports
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class RangesModel(object):
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pass
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class ArrayFieldSubclass(ArrayField):
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def __init__(self, *args, **kwargs):
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super(ArrayFieldSubclass, self).__init__(models.IntegerField())
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class AggregateTestModel(models.Model):
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"""
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To test postgres-specific general aggregation functions
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"""
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char_field = models.CharField(max_length=30, blank=True)
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integer_field = models.IntegerField(null=True)
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boolean_field = models.NullBooleanField()
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class StatTestModel(models.Model):
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"""
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To test postgres-specific aggregation functions for statistics
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"""
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int1 = models.IntegerField()
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int2 = models.IntegerField()
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related_field = models.ForeignKey(AggregateTestModel, null=True)
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