当用户在管理员中删除模型时,我正在尝试在两个数据库中删除模型的实例。当他们创建一个新实例并保存它时,它将同时进入两个数据库。但是我无法从两个数据库中删除它,因为第一次调用delete会删除实例,因此第二次调用会引发断言错误。有没有办法捕获实例并同时从两个数据库中删除它们?
class Change(models.Model):
content = models.TextField()
date = models.DateField(auto_now = True)
def save(self):
super(Change, self).save(using='default')
super(Change, self).save(using='labs')
def delete(self):
#Here it is deleted from the default database.
super(Change, self).delete(using='default')
#This doesn't work because Ive deleted the instance. How do I get this to work as well?
super(Change, self).delete(using='labs')
pk
如果两个数据库都确保实例具有相同的值?如果是,则应pk
在从第二个数据库删除之前还原实例的:
def delete(self):
pk = self.pk
super(Change, self).delete(using='default')
self.pk = pk
super(Change, self).delete(using='labs')
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