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from django.db import models
from .fields import (
ArrayField, BigIntegerRangeField, CICharField, CIEmailField, CITextField,
DateRangeField, DateTimeRangeField, DecimalRangeField, EnumField,
HStoreField, IntegerRangeField, SearchVectorField,
)
class Tag:
def __init__(self, tag_id):
self.tag_id = tag_id
def __eq__(self, other):
return isinstance(other, Tag) and self.tag_id == other.tag_id
class TagField(models.SmallIntegerField):
def from_db_value(self, value, expression, connection):
if value is None:
return value
return Tag(int(value))
def to_python(self, value):
if isinstance(value, Tag):
return value
if value is None:
return value
return Tag(int(value))
def get_prep_value(self, value):
return value.tag_id
class PostgreSQLModel(models.Model):
class Meta:
abstract = True
required_db_vendor = 'postgresql'
class IntegerArrayModel(PostgreSQLModel):
field = ArrayField(models.IntegerField(), default=list, blank=True)
class NullableIntegerArrayModel(PostgreSQLModel):
field = ArrayField(models.IntegerField(), blank=True, null=True)
field_nested = ArrayField(ArrayField(models.IntegerField(null=True)), null=True)
order = models.IntegerField(null=True)
class CharArrayModel(PostgreSQLModel):
field = ArrayField(models.CharField(max_length=10))
class DateTimeArrayModel(PostgreSQLModel):
datetimes = ArrayField(models.DateTimeField())
dates = ArrayField(models.DateField())
times = ArrayField(models.TimeField())
class NestedIntegerArrayModel(PostgreSQLModel):
field = ArrayField(ArrayField(models.IntegerField()))
class OtherTypesArrayModel(PostgreSQLModel):
ips = ArrayField(models.GenericIPAddressField(), default=list)
uuids = ArrayField(models.UUIDField(), default=list)
decimals = ArrayField(models.DecimalField(max_digits=5, decimal_places=2), default=list)
tags = ArrayField(TagField(), blank=True, null=True)
json = ArrayField(models.JSONField(default=dict), default=list)
int_ranges = ArrayField(IntegerRangeField(), blank=True, null=True)
bigint_ranges = ArrayField(BigIntegerRangeField(), blank=True, null=True)
class HStoreModel(PostgreSQLModel):
field = HStoreField(blank=True, null=True)
array_field = ArrayField(HStoreField(), null=True)
class ArrayEnumModel(PostgreSQLModel):
array_of_enums = ArrayField(EnumField(max_length=20))
class CharFieldModel(models.Model):
field = models.CharField(max_length=16)
class TextFieldModel(models.Model):
field = models.TextField()
class SmallAutoFieldModel(models.Model):
id = models.SmallAutoField(primary_key=True)
class BigAutoFieldModel(models.Model):
id = models.BigAutoField(primary_key=True)
# Scene/Character/Line models are used to test full text search. They're
# populated with content from Monty Python and the Holy Grail.
class Scene(models.Model):
scene = models.CharField(max_length=255)
setting = models.CharField(max_length=255)
class Character(models.Model):
name = models.CharField(max_length=255)
class CITestModel(PostgreSQLModel):
name = CICharField(primary_key=True, max_length=255)
email = CIEmailField()
description = CITextField()
array_field = ArrayField(CITextField(), null=True)
class Line(PostgreSQLModel):
scene = models.ForeignKey('Scene', models.CASCADE)
character = models.ForeignKey('Character', models.CASCADE)
dialogue = models.TextField(blank=True, null=True)
dialogue_search_vector = SearchVectorField(blank=True, null=True)
dialogue_config = models.CharField(max_length=100, blank=True, null=True)
class LineSavedSearch(PostgreSQLModel):
line = models.ForeignKey('Line', models.CASCADE)
query = models.CharField(max_length=100)
class RangesModel(PostgreSQLModel):
ints = IntegerRangeField(blank=True, null=True)
bigints = BigIntegerRangeField(blank=True, null=True)
decimals = DecimalRangeField(blank=True, null=True)
timestamps = DateTimeRangeField(blank=True, null=True)
timestamps_inner = DateTimeRangeField(blank=True, null=True)
dates = DateRangeField(blank=True, null=True)
dates_inner = DateRangeField(blank=True, null=True)
class RangeLookupsModel(PostgreSQLModel):
parent = models.ForeignKey(RangesModel, models.SET_NULL, blank=True, null=True)
integer = models.IntegerField(blank=True, null=True)
big_integer = models.BigIntegerField(blank=True, null=True)
float = models.FloatField(blank=True, null=True)
timestamp = models.DateTimeField(blank=True, null=True)
date = models.DateField(blank=True, null=True)
small_integer = models.SmallIntegerField(blank=True, null=True)
decimal_field = models.DecimalField(max_digits=5, decimal_places=2, blank=True, null=True)
class ArrayFieldSubclass(ArrayField):
def __init__(self, *args, **kwargs):
super().__init__(models.IntegerField())
class AggregateTestModel(PostgreSQLModel):
"""
To test postgres-specific general aggregation functions
"""
char_field = models.CharField(max_length=30, blank=True)
integer_field = models.IntegerField(null=True)
boolean_field = models.BooleanField(null=True)
json_field = models.JSONField(null=True)
class StatTestModel(PostgreSQLModel):
"""
To test postgres-specific aggregation functions for statistics
"""
int1 = models.IntegerField()
int2 = models.IntegerField()
related_field = models.ForeignKey(AggregateTestModel, models.SET_NULL, null=True)
class NowTestModel(models.Model):
when = models.DateTimeField(null=True, default=None)
class UUIDTestModel(models.Model):
uuid = models.UUIDField(default=None, null=True)
class Room(models.Model):
number = models.IntegerField(unique=True)
class HotelReservation(PostgreSQLModel):
room = models.ForeignKey('Room', on_delete=models.CASCADE)
datespan = DateRangeField()
start = models.DateTimeField()
end = models.DateTimeField()
cancelled = models.BooleanField(default=False)
requirements = models.JSONField(blank=True, null=True)
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