django - 更改 DRF 路由器中的查找正则表达式

Question

我们如何更改 lookup_field 的查找正则表达式 在 View 集和路由器中？

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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'

如果我们尝试以 /api/v1/users/<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a1c7cecee1c3c0d38fc2cecc" rel="noreferrer noopener nofollow">[email protected]</a>/ 的形式访问详细 View 它引发了 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，请在 View 集上设置 lookup_value_regex 属性。即在 View 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'
    <b>lookup_value_regex = '[\w.@]+' # You can set any valid regex here to match anything excepts 'slashes'</b>

来源: DRF Routers