models.py 文件源码

def clean(self):
        """Overriding the default clean method to implement param checking"""
        super(ARecord, self).clean()
        try:
            ip_addr = self.rdata[0].decode('utf-8')
            ip.ip_address(ip_addr)
        except ValueError:
            raise me.ValidationError('IPv4 address provided is not valid')
        if not len(self.rdata) == 1:
            raise me.ValidationError('We cannot have more than one rdata'
                                     'values for this type of record.')