标签：brief span str clean cts before ane error: div
一、环境配置
操作系统：WIndows 64
django版本：3.0.3
数据库：mysql
二、报错代码
c = Category() c.name = cleaned_data.get("name") c.brief = cleaned_data.get("brief") c.author.add(User.objects.get(username=username)) c.save()
ValueError: "<Category: C++>" needs to have a value for field "id" before this many-to-many relationship can be used.
三、解决方法
c = Category() c.name = cleaned_data.get("name") c.brief = cleaned_data.get("brief") c.save() c.author.add(User.objects.get(username=username)) c.save()
bug之needs to have a value for field "id" before this many-to-many relationship can be used.
标签：brief span str clean cts before ane error: div
原文地址：https://www.cnblogs.com/loveprogramme/p/12475352.html
