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我想改变模型的名字在Django 1.7中更改模型的名称?
来源:
class GreenPost(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL)
title = models.CharField(max_length=40)
text = models.CharField(max_length=255)
def __unicode__(self):
return str(self.user.id) + " -- " + self.text
class GreenMessage(models.Model):
post = models.ForeignKey(Post)
text = models.CharField(max_length=255)
status = models.BooleanField(default=False)
user = models.ForeignKey(settings.AUTH_USER_MODEL)
def __unicode__(self):
return str(self.post.user.username) + " -- " + self.text
要:
class Post(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL)
title = models.CharField(max_length=40)
text = models.CharField(max_length=255)
def __unicode__(self):
return str(self.user.id) + " -- " + self.text
class Message(models.Model):
post = models.ForeignKey(Post)
text = models.CharField(max_length=255)
status = models.BooleanField(default=False)
user = models.ForeignKey(settings.AUTH_USER_MODEL)
def __unicode__(self):
return str(self.post.user.username) + " -- " + self.text
如果我刚申请了移民,Django的ORM会放弃我的老数据库表和创建新表格。因此,删除我可能在数据库中的任何数据。
什么是我可以重命名模型,但仍然保持数据和ex(外键)相同关系的方法?