更改 DRF 路由器中的查找正则表达式

Question

我们如何更改视图集和路由器中的查找正则表达式？lookup_field

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康德片段

# serializers.py
class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('username', 'email', 'is_staff')


# views.py
class UserViewSet(viewsets.ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer
    lookup_field = 'email'

如果我们尝试访问详细视图，因为/api/v1/users/foo@bar.com/它会引发 404

Answer 1

路由器将匹配包含除斜杠和句点字符之外的任何字符的查找值。对于更严格（或更宽松）的查找模式，请lookup_value_regex在视图集上设置属性。即在视图类中设置lookup_value_regex以匹配lookup_field

# views.py
class UserViewSet(viewsets.ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer
    lookup_field = 'email'
    lookup_value_regex = '[\w.@]+' # You can set any valid regex here to match anything excepts 'slashes'

来源： DRF 路由器