from django.db import models class MytypeField(models.Field): #继承Field类 def db_type(self, connection): #实现db_type方法 return 'char(25)' #映射到数据库的字段类型 class MyModel(models.Model): # ... my_field = CharMaxlength25Field()
from django.db import models class MytypeField(models.Field): #继承Field类 def db_type(self, connection): #实现db_type方法 return 'char(25)' #映射到数据库的字段类型 class MyModel(models.Model): # ... my_field = CharMaxlength25Field()