python - 如何通过 Django Rest Framework 公开 Django-Constance 设置？

Question

我正在构建一个项目，其中我需要一些自定义设置，这些设置可由某些无法访问 django 管理面板的用户编辑，这些用户通过 Angular 前端访问应用程序。

我安装了 django-constance 以使这些自定义设置可编辑，因为它是我在 Django packages site 上找到的最受推荐的软件包.我现在的问题是我不知道如何为我的 API rest 提供设置。

我从一些自定义 View 开始:

class ConstanceSettingSerializer(serializers.Serializer):

name = serializers.CharField()
value = serializers.Field()
defult_value = serializers.Field()
modified = serializers.BooleanField(read_only=True)


from constance import settings as constance_settings

class ConstanceView(APIView):

def get(self, request):

    settings = constance_settings.CONFIG.items()

    return Response(settings, status=status.HTTP_200_OK)

但现在我不知道如何将这些设置正确地传递给我的序列化程序。我尝试了这个但没有成功:

 settings_serializer = ConstanceSettingSerializer(settings)
 return Response(settings_serializer.data, status=status.HTTP_200_OK)

我只会收到错误。

知道如何正确执行此操作吗？

谢谢!

Answer 1

给你一个demo

from .utils import get_settings
from constance import config
from rest_framework.viewsets import ViewSet

class SettingViewSet(ViewSet):
    permission_classes = (IsAuthenticated,)

    def setting(self, request, allow_settings):
        if request.method == 'GET':
            # list all setting items
            return Response(data=get_settings(allow_settings))
        else:
            # change all allow setting items in allow_settings
            for key in request.data:
                if key in allow_settings and key in getattr(settings, 'CONSTANCE_CONFIG', {}):
                    value = request.data[key]
                    setattr(config, key, '' if value is None else value)
            return Response(data=get_settings(allow_settings))

    def create(self, request):
        """
        <p>update with POST:<code>{'Key': new_value}</code>
        """
        allow_settings = [key for key, options in getattr(settings, 'CONSTANCE_CONFIG', {}).items()]
        return self.setting(request, allow_settings)

    def list(self, request):
        """
        get all setting item
        """
        allow_settings = [key for key, options in getattr(settings, 'CONSTANCE_CONFIG', {}).items()]
        return self.setting(request, allow_settings)

在 utils.py 中:

def get_settings(allow_settings):
    setting_list = []
    for key, options in getattr(settings, 'CONSTANCE_CONFIG', {}).items():
        if key in allow_settings:
            default, help_text = options[0], options[1]
            data = {'key': key,
                    'default': default,
                    'help_text': help_text,
                    'value': getattr(config, key)}
            setting_list.append(data)
    return setting_list

在 urls.py 中:

router.register(r'setting', SettingViewSet, base_name='setting')

询问获取http://x.x.x.x/setting/可以获取:

[
    {
        "key": "staff_prefix",
        "default": "",
        "help_text": "工号固定代码",
        "value": ""
    },
    {
        "key": "staff_suffix",
        "default": 3,
        "help_text": "工号尾缀",
        "value": "3"
    }
]

使用数据 {'staff_prefix': 'demo'} 发布 http://x.x.x.x/setting/ 您可以更新 staff_prefix 中的值.