在DRF路由器中更改查找正则表达式

Posted 2021-04-04

我们如何在视图集和路由器中更改lookup_field的查找正则表达式？

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Conde Snippet

# 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'

如果我们尝试以/api/v1/users/[e-mail]/的身份访问详细视图，它就会提高404

答案

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（或宽松）的查找模式，请在视图集上设置lookup_value_regex属性。这是在视图类中设置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'

资料来源：DRF Routers