tag:blogger.com,1999:blog-398420085248706856.post4845428300220040518..comments2023-06-21T21:47:08.586+08:00Comments on hoamon's sandbox: django's models 中殺了父物件時,預設也會殺了子物件hoamonhttp://www.blogger.com/profile/03979063804278011312noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-398420085248706856.post-79315082029717070802007-10-24T14:14:00.000+08:002007-10-24T14:14:00.000+08:00Don't want to kill all atticlefrom django.db impor...Don't want to kill all atticle<BR/><BR/><BR/><BR/><BR/><BR/>from django.db import models<BR/><BR/># Create your models here.<BR/><BR/><BR/><BR/>class Journal(models.Model):<BR/> publishdate = models.DateField()<BR/> price = models.IntegerField()<BR/> def nodel(self):<BR/> for a in self.article_set.all():<BR/> a.journal = None<BR/> a.save()<BR/> super(Journal, self).delete()<BR/><BR/>class Article(models.Model):<BR/> journal = models.ForeignKey(Journal,blank=True,null=True)<BR/> content = models.TextField()TerryHhttps://www.blogger.com/profile/00198432946574471177noreply@blogger.com