摘要： 1 class MyModel(models.Model): 2 _foo = models.CharField(max_length = 20, db_column='foo') 3 bar = models.CharField(max_length = 20) 4 5 def get_foo(self): 6 if self.bar: 7 return self.bar 8 else: 9 return self._foo10 11 def set_foo(self, inp... 阅读全文