mirror of
https://github.com/encode/django-rest-framework.git
synced 2025-11-04 09:57:55 +03:00
959085c145
* Update relations.py
Currently if you define the slug field as a nested relationship in a `SlugRelatedField` while many=False, it will cause an attribute error. For example:
For this code:
```
class SomeSerializer(serializers.ModelSerializer):
some_field= serializers.SlugRelatedField(queryset=SomeClass.objects.all(), slug_field="foo__bar")
```
The POST request (or save operation) should work just fine, but if you use GET, then it will fail with Attribute error:
> AttributeError: 'SomeClass' object has no attribute 'foo__bar'
Thus I am handling nested relation here. Reference: https://stackoverflow.com/questions/75878103/drf-attributeerror-when-trying-to-creating-a-instance-with-slugrelatedfield-and/75882424#75882424
* Fixed test cases
* code comment changes related to slugrelatedfield
* changes based on pre-commit and removed comma which was added accidentally
* fixed primary keys of the mock object
* added more test cases based on review
---------
Co-authored-by: Arnab Shil <arnab.shil@thermofisher.com>
60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
from operator import attrgetter
|
|
|
|
from django.core.exceptions import ObjectDoesNotExist
|
|
from django.urls import NoReverseMatch
|
|
|
|
|
|
class MockObject:
|
|
def __init__(self, **kwargs):
|
|
self._kwargs = kwargs
|
|
for key, val in kwargs.items():
|
|
setattr(self, key, val)
|
|
|
|
def __str__(self):
|
|
kwargs_str = ', '.join([
|
|
'%s=%s' % (key, value)
|
|
for key, value in sorted(self._kwargs.items())
|
|
])
|
|
return '<MockObject %s>' % kwargs_str
|
|
|
|
|
|
class MockQueryset:
|
|
def __init__(self, iterable):
|
|
self.items = iterable
|
|
|
|
def __getitem__(self, val):
|
|
return self.items[val]
|
|
|
|
def get(self, **lookup):
|
|
for item in self.items:
|
|
if all([
|
|
attrgetter(key.replace('__', '.'))(item) == value
|
|
for key, value in lookup.items()
|
|
]):
|
|
return item
|
|
raise ObjectDoesNotExist()
|
|
|
|
|
|
class BadType:
|
|
"""
|
|
When used as a lookup with a `MockQueryset`, these objects
|
|
will raise a `TypeError`, as occurs in Django when making
|
|
queryset lookups with an incorrect type for the lookup value.
|
|
"""
|
|
|
|
def __eq__(self):
|
|
raise TypeError()
|
|
|
|
|
|
def mock_reverse(view_name, args=None, kwargs=None, request=None, format=None):
|
|
args = args or []
|
|
kwargs = kwargs or {}
|
|
value = (args + list(kwargs.values()) + ['-'])[0]
|
|
prefix = 'http://example.org' if request else ''
|
|
suffix = ('.' + format) if (format is not None) else ''
|
|
return '%s/%s/%s%s/' % (prefix, view_name, value, suffix)
|
|
|
|
|
|
def fail_reverse(view_name, args=None, kwargs=None, request=None, format=None):
|
|
raise NoReverseMatch()
|