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https://github.com/encode/django-rest-framework.git
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ffe3dbb1b1
Calling dict.keys() is unnecessary. The two are functionally equivalent on modern Pythons. Inspired by Lennart Regebro's talk "Prehistoric Patterns in Python" from PyCon 2017. https://www.youtube.com/watch?v=V5-JH23Vk0I
70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
from __future__ import unicode_literals
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from django.db import models
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from django.test import TestCase
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from rest_framework import serializers
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from tests.models import RESTFrameworkModel
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# Models
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class ParentModel(RESTFrameworkModel):
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name1 = models.CharField(max_length=100)
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class ChildModel(ParentModel):
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name2 = models.CharField(max_length=100)
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class AssociatedModel(RESTFrameworkModel):
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ref = models.OneToOneField(ParentModel, primary_key=True, on_delete=models.CASCADE)
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name = models.CharField(max_length=100)
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# Serializers
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class DerivedModelSerializer(serializers.ModelSerializer):
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class Meta:
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model = ChildModel
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fields = '__all__'
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class AssociatedModelSerializer(serializers.ModelSerializer):
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class Meta:
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model = AssociatedModel
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fields = '__all__'
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# Tests
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class InheritedModelSerializationTests(TestCase):
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def test_multitable_inherited_model_fields_as_expected(self):
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"""
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Assert that the parent pointer field is not included in the fields
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serialized fields
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"""
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child = ChildModel(name1='parent name', name2='child name')
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serializer = DerivedModelSerializer(child)
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assert set(serializer.data) == {'name1', 'name2', 'id'}
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def test_onetoone_primary_key_model_fields_as_expected(self):
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"""
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Assert that a model with a onetoone field that is the primary key is
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not treated like a derived model
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"""
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parent = ParentModel.objects.create(name1='parent name')
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associate = AssociatedModel.objects.create(name='hello', ref=parent)
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serializer = AssociatedModelSerializer(associate)
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assert set(serializer.data) == {'name', 'ref'}
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def test_data_is_valid_without_parent_ptr(self):
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"""
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Assert that the pointer to the parent table is not a required field
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for input data
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"""
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data = {
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'name1': 'parent name',
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'name2': 'child name',
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}
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serializer = DerivedModelSerializer(data=data)
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assert serializer.is_valid() is True
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