django models use regular

有時候DB的field無法滿足我們的要求 像是Phone number,有些人會把該欄位定義

為char field 不過,又想要電話號碼內不能有除了數字以外的符號 這時候可

在django model下創建field的時候加入

regular作控制

 sometimes default field type can't implementing what we want , just like phone

number. like phone number,we want it is numbers but can't allow any sign. so when we create table's

then we can create regular under the field

from django.core.validators import RegexValidator

class UserProfile(models.Model):
 tel_regex = RegexValidator(regex='^[0-9]*$', message='wrong phone type')
 tel = models.CharField('聯絡電話',validators=[tel_regex],  max_length=25, default=0)