Django学习-生成数据库model使用【Django开发08】

曾经终败给现在 2023-06-18 13:52 4阅读 0赞

**1、先生成web程序默认数据表**

python3 manage.py migrate

![20191202194249737.png][]

**2、编写models.py文件**

class UserMessage(models.Model):
        object_id = models.CharField(max_length=50,default="",primary_key=True,verbose_name=u"id")
        name = models.CharField(max_length=20,null=True,blank=True,default="",verbose_name=u"姓名")
        email = models.EmailField(verbose_name=u"邮箱")
        address = models.CharField(max_length=100,verbose_name=u"地址")
        message = models.CharField(max_length=300,verbose_name=u"留言信息")
    
        class Meta:
            verbose_name = u"用户留言信息"
            verbose_name_plural = verbose_name

class Question(models.Model):
        question_text = models.CharField(max_length=200)
        pub_date = models.DateTimeField('date published')
    
    
    class Choice(models.Model):
        question = models.ForeignKey(Question, on_delete=models.CASCADE)
        choice_text = models.CharField(max_length=200)
        votes = models.IntegerField(default=0)

3、执行命令：python manage.py makemigrations appname

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDYzNzkx_size_16_color_FFFFFF_t_70][]

**4、python3 manage.py migrate**

![20191202194404858.png][]

[20191202194249737.png]: https://img-blog.csdnimg.cn/20191202194249737.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDYzNzkx_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191202194134883.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDYzNzkx,size_16,color_FFFFFF,t_70
[20191202194404858.png]: https://img-blog.csdnimg.cn/20191202194404858.png