python Django 后端返回数据格式

Question

def get_classroom_list(request):
    data = json.loads(request.body)
    year = data.get('year')
    obj = Classroom.objects.filter(year=year)  

    res = {
        "code": 0,
        "msg": 'OK！',
        "data": obj 
    }

    return ？？？？？？

前端访问后Django不是报错就是数据不是我想要的格式
需要Django返回这样的格式，代码怎么写呢？

 
{
    "code": 0,
    "msg": "测试获取数据成功",
    "data": [
        {
            "id": "55",
            "title": "啊啊啊",
            "classroomtype": "1",
            "kzcd": "8",
        },
        {
            "id": "11",
            "title": "阿大声道",
            "classroomtype": "1",
            "kzcd": "5",
        }
    ]
}

Answer 1

from django.http import JsonResponse
from django.forms.models import model_to_dict


def get_classroom_list(request):
    data = json.loads(request.body)
    year = data.get('year')
    obj = Classroom.objects.filter(year=year)
    data = []
    for i in obj:
        data.append(model_to_dict(i))
    res = {
        "code": 0,
        "msg": 'OK！',
        "data": data
    }

    return JsonResponse(res)

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