mirror of
https://github.com/graphql-python/graphene-django.git
synced 2025-10-30 23:47:30 +03:00
280 lines
9.2 KiB
Python
280 lines
9.2 KiB
Python
from collections import OrderedDict
|
|
from django.db import models
|
|
from django.utils.encoding import force_str
|
|
from django.utils.module_loading import import_string
|
|
|
|
from graphene import (
|
|
ID,
|
|
Boolean,
|
|
Dynamic,
|
|
Enum,
|
|
Field,
|
|
Float,
|
|
Int,
|
|
List,
|
|
NonNull,
|
|
String,
|
|
UUID,
|
|
DateTime,
|
|
Date,
|
|
Time,
|
|
)
|
|
from graphene.types.json import JSONString
|
|
from graphene.utils.str_converters import to_camel_case, to_const
|
|
from graphql import assert_valid_name
|
|
|
|
from .settings import graphene_settings
|
|
from .compat import ArrayField, HStoreField, JSONField, RangeField
|
|
from .fields import DjangoListField, DjangoConnectionField
|
|
from .utils import import_single_dispatch
|
|
|
|
singledispatch = import_single_dispatch()
|
|
|
|
|
|
def convert_choice_name(name):
|
|
name = to_const(force_str(name))
|
|
try:
|
|
assert_valid_name(name)
|
|
except AssertionError:
|
|
name = "A_%s" % name
|
|
return name
|
|
|
|
|
|
def get_choices(choices):
|
|
converted_names = []
|
|
if isinstance(choices, OrderedDict):
|
|
choices = choices.items()
|
|
for value, help_text in choices:
|
|
if isinstance(help_text, (tuple, list)):
|
|
for choice in get_choices(help_text):
|
|
yield choice
|
|
else:
|
|
name = convert_choice_name(value)
|
|
while name in converted_names:
|
|
name += "_" + str(len(converted_names))
|
|
converted_names.append(name)
|
|
description = help_text
|
|
yield name, value, description
|
|
|
|
|
|
def convert_choices_to_named_enum_with_descriptions(name, choices):
|
|
choices = list(get_choices(choices))
|
|
named_choices = [(c[0], c[1]) for c in choices]
|
|
named_choices_descriptions = {c[0]: c[2] for c in choices}
|
|
|
|
class EnumWithDescriptionsType(object):
|
|
@property
|
|
def description(self):
|
|
return named_choices_descriptions[self.name]
|
|
|
|
return Enum(name, list(named_choices), type=EnumWithDescriptionsType)
|
|
|
|
|
|
def generate_enum_name(django_model_meta, field):
|
|
if graphene_settings.DJANGO_CHOICE_FIELD_ENUM_CUSTOM_NAME:
|
|
# Try and import custom function
|
|
custom_func = import_string(
|
|
graphene_settings.DJANGO_CHOICE_FIELD_ENUM_CUSTOM_NAME
|
|
)
|
|
name = custom_func(field)
|
|
elif graphene_settings.DJANGO_CHOICE_FIELD_ENUM_V3_NAMING is True:
|
|
name = "{app_label}{object_name}{field_name}Choices".format(
|
|
app_label=to_camel_case(django_model_meta.app_label.title()),
|
|
object_name=django_model_meta.object_name,
|
|
field_name=to_camel_case(field.name.title()),
|
|
)
|
|
else:
|
|
name = to_camel_case("{}_{}".format(django_model_meta.object_name, field.name))
|
|
return name
|
|
|
|
|
|
def convert_choice_field_to_enum(field, name=None):
|
|
if name is None:
|
|
name = generate_enum_name(field.model._meta, field)
|
|
choices = field.choices
|
|
return convert_choices_to_named_enum_with_descriptions(name, choices)
|
|
|
|
|
|
def convert_django_field_with_choices(
|
|
field, registry=None, convert_choices_to_enum=True
|
|
):
|
|
if registry is not None:
|
|
converted = registry.get_converted_field(field)
|
|
if converted:
|
|
return converted
|
|
choices = getattr(field, "choices", None)
|
|
if choices and convert_choices_to_enum:
|
|
enum = convert_choice_field_to_enum(field)
|
|
required = not (field.blank or field.null)
|
|
converted = enum(description=field.help_text, required=required)
|
|
else:
|
|
converted = convert_django_field(field, registry)
|
|
if registry is not None:
|
|
registry.register_converted_field(field, converted)
|
|
return converted
|
|
|
|
|
|
@singledispatch
|
|
def convert_django_field(field, registry=None):
|
|
raise Exception(
|
|
"Don't know how to convert the Django field %s (%s)" % (field, field.__class__)
|
|
)
|
|
|
|
|
|
@convert_django_field.register(models.CharField)
|
|
@convert_django_field.register(models.TextField)
|
|
@convert_django_field.register(models.EmailField)
|
|
@convert_django_field.register(models.SlugField)
|
|
@convert_django_field.register(models.URLField)
|
|
@convert_django_field.register(models.GenericIPAddressField)
|
|
@convert_django_field.register(models.FileField)
|
|
@convert_django_field.register(models.FilePathField)
|
|
def convert_field_to_string(field, registry=None):
|
|
return String(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.AutoField)
|
|
def convert_field_to_id(field, registry=None):
|
|
return ID(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.UUIDField)
|
|
def convert_field_to_uuid(field, registry=None):
|
|
return UUID(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.PositiveIntegerField)
|
|
@convert_django_field.register(models.PositiveSmallIntegerField)
|
|
@convert_django_field.register(models.SmallIntegerField)
|
|
@convert_django_field.register(models.BigIntegerField)
|
|
@convert_django_field.register(models.IntegerField)
|
|
def convert_field_to_int(field, registry=None):
|
|
return Int(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.BooleanField)
|
|
def convert_field_to_boolean(field, registry=None):
|
|
return NonNull(Boolean, description=field.help_text)
|
|
|
|
|
|
@convert_django_field.register(models.NullBooleanField)
|
|
def convert_field_to_nullboolean(field, registry=None):
|
|
return Boolean(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.DecimalField)
|
|
@convert_django_field.register(models.FloatField)
|
|
@convert_django_field.register(models.DurationField)
|
|
def convert_field_to_float(field, registry=None):
|
|
return Float(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.DateTimeField)
|
|
def convert_datetime_to_string(field, registry=None):
|
|
return DateTime(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.DateField)
|
|
def convert_date_to_string(field, registry=None):
|
|
return Date(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.TimeField)
|
|
def convert_time_to_string(field, registry=None):
|
|
return Time(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(models.OneToOneRel)
|
|
def convert_onetoone_field_to_djangomodel(field, registry=None):
|
|
model = field.related_model
|
|
|
|
def dynamic_type():
|
|
_type = registry.get_type_for_model(model)
|
|
if not _type:
|
|
return
|
|
|
|
# We do this for a bug in Django 1.8, where null attr
|
|
# is not available in the OneToOneRel instance
|
|
null = getattr(field, "null", True)
|
|
return Field(_type, required=not null)
|
|
|
|
return Dynamic(dynamic_type)
|
|
|
|
|
|
@convert_django_field.register(models.ManyToManyField)
|
|
@convert_django_field.register(models.ManyToManyRel)
|
|
@convert_django_field.register(models.ManyToOneRel)
|
|
def convert_field_to_list_or_connection(field, registry=None):
|
|
model = field.related_model
|
|
|
|
def dynamic_type():
|
|
_type = registry.get_type_for_model(model)
|
|
if not _type:
|
|
return
|
|
|
|
description = (
|
|
field.help_text
|
|
if isinstance(field, models.ManyToManyField)
|
|
else field.field.help_text
|
|
)
|
|
|
|
# If there is a connection, we should transform the field
|
|
# into a DjangoConnectionField
|
|
if _type._meta.connection:
|
|
# Use a DjangoFilterConnectionField if there are
|
|
# defined filter_fields or a filterset_class in the
|
|
# DjangoObjectType Meta
|
|
if _type._meta.filter_fields or _type._meta.filterset_class:
|
|
from .filter.fields import DjangoFilterConnectionField
|
|
|
|
return DjangoFilterConnectionField(
|
|
_type, required=True, description=description
|
|
)
|
|
|
|
return DjangoConnectionField(_type, required=True, description=description)
|
|
|
|
return DjangoListField(
|
|
_type,
|
|
required=True, # A Set is always returned, never None.
|
|
description=description,
|
|
)
|
|
|
|
return Dynamic(dynamic_type)
|
|
|
|
|
|
@convert_django_field.register(models.OneToOneField)
|
|
@convert_django_field.register(models.ForeignKey)
|
|
def convert_field_to_djangomodel(field, registry=None):
|
|
model = field.related_model
|
|
|
|
def dynamic_type():
|
|
_type = registry.get_type_for_model(model)
|
|
if not _type:
|
|
return
|
|
|
|
return Field(_type, description=field.help_text, required=not field.null)
|
|
|
|
return Dynamic(dynamic_type)
|
|
|
|
|
|
@convert_django_field.register(ArrayField)
|
|
def convert_postgres_array_to_list(field, registry=None):
|
|
base_type = convert_django_field(field.base_field)
|
|
if not isinstance(base_type, (List, NonNull)):
|
|
base_type = type(base_type)
|
|
return List(base_type, description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(HStoreField)
|
|
@convert_django_field.register(JSONField)
|
|
def convert_postgres_field_to_string(field, registry=None):
|
|
return JSONString(description=field.help_text, required=not field.null)
|
|
|
|
|
|
@convert_django_field.register(RangeField)
|
|
def convert_postgres_range_to_string(field, registry=None):
|
|
inner_type = convert_django_field(field.base_field)
|
|
if not isinstance(inner_type, (List, NonNull)):
|
|
inner_type = type(inner_type)
|
|
return List(inner_type, description=field.help_text, required=not field.null)
|