Django 数据库模型配置

class UserMessage(models.Model):    object_id = models.CharField(max_length=50,default='',primary_key=True,verbose_name='z')    name = models.CharField(max_length=20,null=True,blank=True,default='',verbose_name='username')    email = models.EmailField(verbose_name='email')    address = models.CharField(max_length=100,verbose_name='useraddress')    message = models.CharField(max_length=500,verbose_name="message")

    class Mate:        verbose_name = "user message"        verbose_name_plural = verbose_name        db_table = 'user_message'        ordering = ""