如何重写GeoDjango GeoJSON serializer以包含模型属性

将JSON的原始答案更改为使用GEOJSON是非常简单的。

您需要更改导入中的一行,而不是导入 from django.core.serializers.json import Serializer as JsonSerializer 你导入GEOJSON from django.contrib.gis.serializers.geojson import Serializer as JsonSerializer

这是易于剪切粘贴的完整代码。

from django.core.serializers.base import Serializer as BaseSerializer
from django.core.serializers.python import Serializer as PythonSerializer
from django.contrib.gis.serializers.geojson import Serializer as JsonSerializer


class ExtBaseSerializer(BaseSerializer):

    def serialize_property(self, obj):
        model = type(obj)
        for field in self.selected_fields:
            if hasattr(model, field) and type(getattr(model,
                field)) == property:
                    self.handle_prop(obj, field)

    def handle_prop(self, obj, field):
        self._current[field] = getattr(obj, field)

    def end_object(self, obj):
        self.serialize_property(obj)

        super(ExtBaseSerializer, self).end_object(obj)


class ExtPythonSerializer(ExtBaseSerializer, PythonSerializer):
    pass


class ExtJsonSerializer(ExtPythonSerializer, JsonSerializer):
    pass

使用方法:

ExtJsonSerializer().serialize(
    MyModel.objects.all(),
    fields=['field_name_1', 'property_1' ...]
)