使用json模型字段和django graphene

我正在为我的项目使用graphql端点。其中一个模型具有包含一些json的textfield。如果我通过graphql请求我的实体列表，我得到的json就像一个字符串。如何在graphql中使用它作为嵌套结构，并具有过滤、选择某些属性等功能

class SysObjects(models.Model):
    id = models.BigAutoField(primary_key=True)
    user_id = models.BigIntegerField()
    type_id = models.PositiveIntegerField(blank=True, null=True)
    # status = models.ForeignKey('SysObjectsStatuses', models.DO_NOTHING, blank=True, null=True)
    title = models.CharField(max_length=255, blank=True, null=True)
    data = models.TextField(blank=True, null=True) #json string is here
    visible = models.IntegerField()
    date_actual = models.DateTimeField()
    date_update = models.DateTimeField(blank=True, null=True)
    date_add = models.DateTimeField(blank=True, null=True)
    orig = models.CharField(max_length=255, blank=True, null=True)
    is_color = models.PositiveIntegerField()

    class Meta:
        managed = False
        db_table = 'sys_objects'
        app_label = "default"

    def __str__(self):
        return self.title

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您可以使用自定义类型为数据字段声明解析器，例如

import graphene
from graphene.django.types import DjangoObjectType

class SysObjectsType(DjangoObjectType):
    data = DataType()

    class Meta:
        model = SysObjects

    def resolve_data(self, info):
        # What you return here depends on how you are unpacking the JSON data
        return self.data

class DataType(graphene.ObjectType):
    # What you put here depends on how you want to structure the JSON output
    ...

您可能能够扩展数据类型数据的这种想法，以返回数据类型数据，从而能够处理任意深度的数据树