更新 JsonField django 中的数据答案

【问题标题】：Update data in a JsonField django更新 JsonField django 中的数据
【发布时间】：2017-03-24 00:36:24
【问题描述】：

我想更新 django 中 jsonfield 中的 json 对象，我在更新数据时遇到问题。

我的 json 看起来像这样 https://codeshare.io/5obDPX

所以基本上 json 有错误的数据，而不是“NATIONAL ID Card”它有“NATIONAL ID”所以我想更新这个 json 对象以获得正确的数据。这就是我所说的

"info": {
        "mobilePhone": "", 
        "firstName": "david", 
        "tags": [], 
        "middleName": "mirale", 
        "gender": "Male", 
        "documentType": "NATIONAL ID", 
        "beneficiary": false, 
        "dateOfBirth": "1995-03-04T08:01:42.165Z", 
        "documentNumber": "519011016721", 
        "dateOfBirthExact": false, 
        "role": "Child", 
        "lastName": "ABSURG0058", 
        "recipient": "Alternate", 
        "homePhone": ""
      },

"documentType": "NATIONAL ID", 应该是“国民身份证”

我正在使用以下脚本来更新服务器中的 json 对象。

import django
django.setup()

import sys
reload(sys)    # to re-enable sys.setdefaultencoding()
sys.setdefaultencoding('utf-8')


import json
from django.db import transaction
from maidea.apps.mobile.models import MobileDocument


office = 'sa_de'

#we fetch all the mobile documents from that have failed
uploads = MobileDocument.objects.filter(
    status=MobileDocument.ERROR,
    mobile_upload__office__slug=office
)

print('Number of uploads fetched: %d' %(uploads.count()))

with transaction.atomic():
    for upload in uploads:
        for member in upload.data['members']:
            try:
                doc_type_value = member['info'].get('documentType')
            except:
                doc_type_value = None
            if doc_type_value == 'NATIONAL ID':
          doc_type_value = doc_type_value.replace('NATIONAL ID', 'NATIONAL ID Card')
          assert doc_type_value == 'NATIONAL ID Card'
                  upload.save()

问题是这个对象没有更新我做错了什么？

【问题讨论】：

标签： python json django django-jsonfield

【解决方案1】：

验证doc_type_value 后，您不会将其设置回upload 对象，您需要更新upload 对象：

for upload in uploads:
    data = upload.data
    updated_members = []
    for member in data['members']:
        try:
            doc_type_value = member['info'].get('documentType')
        except KeyError:
            pass
        else:
            if doc_type_value == 'NATIONAL ID':
                doc_type_value = 'NATIONAL ID Card'
                member['info']['documentType'] = doc_type_value
        updated_members.append(member)

    data['members'] = updated_members
    upload.data = data
    upload.save()

【讨论】：