Django

文章目錄

• 1.Django修改表名
• 2.Django增加表内容

1.Django修改表名

# 在Model中
class Meta:
    db_table = "new_tablename"  # 更改表名
           

2.Django增加表内容

1.直接在models.py中增加

class User(models.Model):
    username=models.CharField(max_length=50)
    password=models.CharField(max_length=50)
    zhname = models.CharField(max_length=50)
           

我增加了zhname = models.CharField(max_length=50)

再依次執行

1.python manage.py makemigrations
2.python manage.py migrate
           

執行第一句時報錯

You are trying to add a non-nullable field 'name' to contact without a default; we can't do that (the database needs something to populate existing rows).

Please select a fix:

 1) Provide a one-off default now (will be set on all existing rows with a null value for this column)

 2) Quit, and let me add a default in models.py

Select an option: 
           

解決方法：給zhname 給初值’abc’

然後依次執行

python manage.py makemigrations
python manage.py migrate
           

删除default預設初始值default=‘abc’

再執行

python manage.py makemigrations
python manage.py migrate