mirror of
https://github.com/graphql-python/graphene-django.git
synced 2025-10-31 16:07:36 +03:00
c049ab7470
* merge master into v3 * fix order_by snake casing by checking if value is None, switch executor to execution_context_class since schema.execute no longer supports executor * fix linting by removing duplicate defintion and test of convert_form_field_to_string_list
108 lines
2.9 KiB
Python
108 lines
2.9 KiB
Python
import inspect
|
|
|
|
from django.db import connection, models, transaction
|
|
from django.db.models.manager import Manager
|
|
from django.utils.encoding import force_str
|
|
from django.utils.functional import Promise
|
|
|
|
from graphene.utils.str_converters import to_camel_case
|
|
|
|
try:
|
|
import django_filters # noqa
|
|
|
|
DJANGO_FILTER_INSTALLED = True
|
|
except ImportError:
|
|
DJANGO_FILTER_INSTALLED = False
|
|
|
|
|
|
def isiterable(value):
|
|
try:
|
|
iter(value)
|
|
except TypeError:
|
|
return False
|
|
return True
|
|
|
|
|
|
def _camelize_django_str(s):
|
|
if isinstance(s, Promise):
|
|
s = force_str(s)
|
|
return to_camel_case(s) if isinstance(s, str) else s
|
|
|
|
|
|
def camelize(data):
|
|
if isinstance(data, dict):
|
|
return {_camelize_django_str(k): camelize(v) for k, v in data.items()}
|
|
if isiterable(data) and not isinstance(data, (str, Promise)):
|
|
return [camelize(d) for d in data]
|
|
return data
|
|
|
|
|
|
def get_reverse_fields(model, local_field_names):
|
|
for name, attr in model.__dict__.items():
|
|
# Don't duplicate any local fields
|
|
if name in local_field_names:
|
|
continue
|
|
|
|
# "rel" for FK and M2M relations and "related" for O2O Relations
|
|
related = getattr(attr, "rel", None) or getattr(attr, "related", None)
|
|
if isinstance(related, models.ManyToOneRel):
|
|
yield (name, related)
|
|
elif isinstance(related, models.ManyToManyRel) and not related.symmetrical:
|
|
yield (name, related)
|
|
|
|
|
|
def maybe_queryset(value):
|
|
if isinstance(value, Manager):
|
|
value = value.get_queryset()
|
|
return value
|
|
|
|
|
|
def get_model_fields(model):
|
|
local_fields = [
|
|
(field.name, field)
|
|
for field in sorted(
|
|
list(model._meta.fields) + list(model._meta.local_many_to_many)
|
|
)
|
|
]
|
|
|
|
# Make sure we don't duplicate local fields with "reverse" version
|
|
local_field_names = [field[0] for field in local_fields]
|
|
reverse_fields = get_reverse_fields(model, local_field_names)
|
|
|
|
all_fields = local_fields + list(reverse_fields)
|
|
|
|
return all_fields
|
|
|
|
|
|
def is_valid_django_model(model):
|
|
return inspect.isclass(model) and issubclass(model, models.Model)
|
|
|
|
|
|
def import_single_dispatch():
|
|
try:
|
|
from functools import singledispatch
|
|
except ImportError:
|
|
singledispatch = None
|
|
|
|
if not singledispatch:
|
|
try:
|
|
from singledispatch import singledispatch
|
|
except ImportError:
|
|
pass
|
|
|
|
if not singledispatch:
|
|
raise Exception(
|
|
"It seems your python version does not include "
|
|
"functools.singledispatch. Please install the 'singledispatch' "
|
|
"package. More information here: "
|
|
"https://pypi.python.org/pypi/singledispatch"
|
|
)
|
|
|
|
return singledispatch
|
|
|
|
|
|
def set_rollback():
|
|
atomic_requests = connection.settings_dict.get("ATOMIC_REQUESTS", False)
|
|
if atomic_requests and connection.in_atomic_block:
|
|
transaction.set_rollback(True)
|