graphene/graphene/contrib/django/converter.py
2016-01-11 17:13:25 +01:00

81 lines
2.7 KiB
Python

from django.db import models
from ...core.types.scalars import ID, Boolean, Float, Int, String
from .compat import RelatedObject, UUIDField
from .utils import get_related_model, import_single_dispatch
singledispatch = import_single_dispatch()
@singledispatch
def convert_django_field(field):
raise Exception(
"Don't know how to convert the Django field %s (%s)" %
(field, field.__class__))
@convert_django_field.register(models.DateField)
@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(UUIDField)
def convert_field_to_string(field):
return String(description=field.help_text)
@convert_django_field.register(models.AutoField)
def convert_field_to_id(field):
return ID(description=field.help_text)
@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):
return Int(description=field.help_text)
@convert_django_field.register(models.BooleanField)
def convert_field_to_boolean(field):
return Boolean(description=field.help_text, required=True)
@convert_django_field.register(models.NullBooleanField)
def convert_field_to_nullboolean(field):
return Boolean(description=field.help_text)
@convert_django_field.register(models.DecimalField)
@convert_django_field.register(models.FloatField)
def convert_field_to_float(field):
return Float(description=field.help_text)
@convert_django_field.register(models.ManyToManyField)
@convert_django_field.register(models.ManyToOneRel)
@convert_django_field.register(models.ManyToManyRel)
def convert_field_to_list_or_connection(field):
from .fields import DjangoModelField, ConnectionOrListField
model_field = DjangoModelField(get_related_model(field))
return ConnectionOrListField(model_field)
# For Django 1.6
@convert_django_field.register(RelatedObject)
def convert_relatedfield_to_djangomodel(field):
from .fields import DjangoModelField, ConnectionOrListField
model_field = DjangoModelField(field.model)
return ConnectionOrListField(model_field)
@convert_django_field.register(models.OneToOneField)
@convert_django_field.register(models.ForeignKey)
def convert_field_to_djangomodel(field):
from .fields import DjangoModelField
return DjangoModelField(get_related_model(field), description=field.help_text)