forked from model-bakers/model_bakery
/
generators.py
220 lines (187 loc) · 6.52 KB
/
generators.py
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from decimal import Decimal
from typing import Any, Callable, Dict, Optional, Type, Union
from django.db.backends.base.operations import BaseDatabaseOperations
from django.db.models import (
BigIntegerField,
BinaryField,
BooleanField,
CharField,
DateField,
DateTimeField,
DecimalField,
DurationField,
EmailField,
FileField,
FloatField,
ForeignKey,
GenericIPAddressField,
ImageField,
IntegerField,
IPAddressField,
ManyToManyField,
OneToOneField,
PositiveIntegerField,
PositiveSmallIntegerField,
SlugField,
SmallIntegerField,
TextField,
TimeField,
URLField,
UUIDField,
)
from . import random_gen
from .utils import import_from_str
try:
# Proper support starts with Django 3.0
# (as it uses `django/db/backends/base/operations.py` for matching ranges)
from django.db.models import AutoField, BigAutoField, SmallAutoField
except ImportError:
AutoField = None
BigAutoField = None
SmallAutoField = None
try:
# added in Django 3.1
from django.db.models import PositiveBigIntegerField
except ImportError:
PositiveBigIntegerField = None
try:
# Replaced `django.contrib.postgres.fields.JSONField` in Django 3.1
from django.db.models import JSONField
except ImportError:
JSONField = None
try:
# PostgreSQL-specific field (only available when psycopg2 is installed)
from django.contrib.postgres.fields import ArrayField
except ImportError:
ArrayField = None
try:
# Deprecated since Django 3.1
# PostgreSQL-specific field (only available when psycopg2 is installed)
from django.contrib.postgres.fields import JSONField as PostgresJSONField
except ImportError:
PostgresJSONField = None
try:
# PostgreSQL-specific field (only available when psycopg2 is installed)
from django.contrib.postgres.fields import HStoreField
except ImportError:
HStoreField = None
try:
# PostgreSQL-specific fields (only available when psycopg2 is installed)
from django.contrib.postgres.fields.citext import (
CICharField,
CIEmailField,
CITextField,
)
except ImportError:
CICharField = None
CIEmailField = None
CITextField = None
try:
# Deprecated since Django 3.1
from django.db.models import NullBooleanField
except ImportError:
NullBooleanField = None
try:
# PostgreSQL-specific fields (only available when psycopg2 is installed)
from django.contrib.postgres.fields.ranges import (
BigIntegerRangeField,
DateRangeField,
DateTimeRangeField,
DecimalRangeField,
IntegerRangeField,
)
except ImportError:
BigIntegerRangeField = None
DateRangeField = None
DateTimeRangeField = None
DecimalRangeField = None
IntegerRangeField = None
try:
# Deprecated since Django 2.2
from django.contrib.postgres.fields.ranges import FloatRangeField
except ImportError:
FloatRangeField = None
def _make_integer_gen_by_range(field_type: Any) -> Callable:
min_int, max_int = BaseDatabaseOperations.integer_field_ranges[field_type.__name__]
def gen_integer():
return random_gen.gen_integer(min_int=min_int, max_int=max_int)
return gen_integer
default_mapping = {
ForeignKey: random_gen.gen_related,
OneToOneField: random_gen.gen_related,
ManyToManyField: random_gen.gen_m2m,
BooleanField: random_gen.gen_boolean,
IntegerField: _make_integer_gen_by_range(IntegerField),
BigIntegerField: _make_integer_gen_by_range(BigIntegerField),
SmallIntegerField: _make_integer_gen_by_range(SmallIntegerField),
PositiveIntegerField: _make_integer_gen_by_range(PositiveIntegerField),
PositiveSmallIntegerField: _make_integer_gen_by_range(PositiveSmallIntegerField),
FloatField: random_gen.gen_float,
DecimalField: random_gen.gen_decimal,
BinaryField: random_gen.gen_byte_string,
CharField: random_gen.gen_string,
TextField: random_gen.gen_text,
SlugField: random_gen.gen_slug,
UUIDField: random_gen.gen_uuid,
DateField: random_gen.gen_date,
DateTimeField: random_gen.gen_datetime,
TimeField: random_gen.gen_time,
URLField: random_gen.gen_url,
EmailField: random_gen.gen_email,
IPAddressField: random_gen.gen_ipv4,
GenericIPAddressField: random_gen.gen_ip,
FileField: random_gen.gen_file_field,
ImageField: random_gen.gen_image_field,
DurationField: random_gen.gen_interval,
} # type: Dict[Type, Callable]
if ArrayField:
default_mapping[ArrayField] = random_gen.gen_array
if JSONField:
default_mapping[JSONField] = random_gen.gen_json
if PostgresJSONField:
default_mapping[PostgresJSONField] = random_gen.gen_json
if HStoreField:
default_mapping[HStoreField] = random_gen.gen_hstore
if CICharField:
default_mapping[CICharField] = random_gen.gen_string
if CIEmailField:
default_mapping[CIEmailField] = random_gen.gen_email
if CITextField:
default_mapping[CITextField] = random_gen.gen_text
if AutoField:
default_mapping[AutoField] = _make_integer_gen_by_range(AutoField)
if BigAutoField:
default_mapping[BigAutoField] = _make_integer_gen_by_range(BigAutoField)
if SmallAutoField:
default_mapping[SmallAutoField] = _make_integer_gen_by_range(SmallAutoField)
if PositiveBigIntegerField:
default_mapping[PositiveBigIntegerField] = _make_integer_gen_by_range(
PositiveBigIntegerField
)
if DecimalRangeField:
default_mapping[DecimalRangeField] = random_gen.gen_pg_numbers_range(Decimal)
if IntegerRangeField:
default_mapping[IntegerRangeField] = random_gen.gen_pg_numbers_range(int)
if BigIntegerRangeField:
default_mapping[BigIntegerRangeField] = random_gen.gen_pg_numbers_range(int)
if FloatRangeField:
default_mapping[FloatRangeField] = random_gen.gen_pg_numbers_range(float)
if DateRangeField:
default_mapping[DateRangeField] = random_gen.gen_date_range
if DateTimeRangeField:
default_mapping[DateTimeRangeField] = random_gen.gen_datetime_range
if NullBooleanField:
default_mapping[NullBooleanField] = random_gen.gen_boolean
# Add GIS fields
def get_type_mapping() -> Dict[Type, Callable]:
from django.contrib.contenttypes.models import ContentType
from .gis import default_gis_mapping
mapping = default_mapping.copy()
mapping[ContentType] = random_gen.gen_content_type
mapping.update(default_gis_mapping)
return mapping.copy()
user_mapping = {}
def add(field: str, func: Optional[Union[Callable, str]]) -> None:
user_mapping[import_from_str(field)] = import_from_str(func)
def get(field: Any) -> Optional[Callable]:
return user_mapping.get(field)