Question

默认的串行器实现：

class Serializer(base.Serializer):
    """
    Serializes a QuerySet to basic Python objects.
    """

    internal_use_only = True

    def start_serialization(self):
        self._current = None
        self.objects = []

    def end_serialization(self):
        pass

    def start_object(self, obj):
        self._current = {}

    def end_object(self, obj):
        self.objects.append({
            "model"  : smart_unicode(obj._meta),
            "pk"     : smart_unicode(obj._get_pk_val(), strings_only=True),
            "fields" : self._current
        })
        self._current = None

数据输出格式：

[{＆＃34; pk＆＃34;：2，＆＃34; model＆＃34;：＆＃34; android.job＆＃34;，＆＃34; fields＆＃34;：{＆＃34;状态＆＃34;：＆＃34; lol＆＃34;，＆＃34;客户＆＃34;：＆＃34;哈哈＆＃34;}}，{＆＃34; pk＆＃34;：3，＆＃34; model＆＃34;：＆＃34; android.job＆＃34;，＆＃34; fields＆＃34;：{＆＃34; status＆＃34;：＆＃34; lul＆＃34;，＆＃34; customer＆＃ 34;：＆＃34; BWAHA＆＃34;}}]

我的压倒一切：

class MySerialiser(Serializer):
    def start_serialization(self):
        self._current = None
        self.objects = []

    def end_serialization(self):
        pass

    def start_object(self, obj):
        self._current = {}

    def end_object(self, obj):
        self._current['id'] = obj._get_pk_val()
        self.objects.append(self._current)

输出格式：

{＆＃34; status＆＃34;：＆＃34; lol＆＃34;，＆＃34; customer＆＃34;：＆＃34; HAHA＆＃34;，id：2L} {＆＃34; status＆＃34;：＆＃34; lul＆＃34;，＆＃34;客户＆＃34;：＆＃34; BWAHA＆＃34;，id：3L}

我需要什么：

[{＆＃34; status＆＃34;：＆＃34; lol＆＃34;，＆＃34; customer＆＃34;：＆＃34; HAHA＆＃34;，id：2L}，{＆＃34 ;状态＆＃34;：＆＃34; lul＆＃34;，＆＃34;客户＆＃34;：＆＃34; BWAHA＆＃34;，id：3L}]

注意 - 这是在Django中 - 所有这些都是String类型！不要认为它们是列表/词组

Answer 1

这终于奏效了！

class MySerialiser(Serializer):
    def start_serialization(self):
        self._current = None
        self.objects = []

    def end_serialization(self):
        simplejson.dump(self.objects, self.stream, cls=DjangoJSONEncoder, **self.options)

    def getvalue(self):
        if callable(getattr(self.stream, 'getvalue', None)):
            return self.stream.getvalue()

    def start_object(self, obj):
        self._current = {}

    def end_object(self, obj):
        self._current['id'] = obj._get_pk_val()
        self.objects.append(self._current)
        self._current = None

Django Model自定义序列化为JSON

1 个答案: