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https://github.com/encode/django-rest-framework.git
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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
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from django.core.exceptions import ObjectDoesNotExist
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from django.urls import NoReverseMatch
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class MockObject:
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def __init__(self, **kwargs):
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self._kwargs = kwargs
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for key, val in kwargs.items():
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setattr(self, key, val)
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def __str__(self):
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kwargs_str = ', '.join([
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'%s=%s' % (key, value)
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for key, value in sorted(self._kwargs.items())
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])
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return '<MockObject %s>' % kwargs_str
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class MockQueryset:
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def __init__(self, iterable):
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self.items = iterable
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def __getitem__(self, val):
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return self.items[val]
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def get(self, **lookup):
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for item in self.items:
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if all([
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attrgetter(key.replace('__', '.'))(item) == value
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for key, value in lookup.items()
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]):
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return item
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raise ObjectDoesNotExist()
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class BadType:
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"""
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When used as a lookup with a `MockQueryset`, these objects
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will raise a `TypeError`, as occurs in Django when making
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queryset lookups with an incorrect type for the lookup value.
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"""
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def __eq__(self):
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raise TypeError()
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def mock_reverse(view_name, args=None, kwargs=None, request=None, format=None):
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args = args or []
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kwargs = kwargs or {}
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value = (args + list(kwargs.values()) + ['-'])[0]
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prefix = 'http://example.org' if request else ''
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suffix = ('.' + format) if (format is not None) else ''
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return '%s/%s/%s%s/' % (prefix, view_name, value, suffix)
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def fail_reverse(view_name, args=None, kwargs=None, request=None, format=None):
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raise NoReverseMatch()
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