class Article(Model.model):
title = ''
title_hash = hash(title)
保存title时自动生成title_hash
在model重写save 方法
大概是这样:
def save(self, *args, **kwargs):
self.title_hash = hash(self.title)
super(Article, self).save(*args, **kwargs)
def save_title_hash(self):
title_hash = hash(title)
return title_hash
title_hash = property(save_title_hash)