Django-数据模型

  • 修改model.py文件
  • from django.db import models
    
    # Create your models here.
    
    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)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0)
  • 生成合并数据脚本:python manage.py makemigrations
  • ➜  mysite  python manage.py makemigrations polls
    Migrations for 'polls':
    0001_initial.py:
    - Create model Choice
    - Create model Question
    - Add field question to choice
  • 应用改变到数据库中:python manage.py migrate
  • ➜  mysite  python manage.py migrate
    Operations to perform:
    Synchronize unmigrated apps: staticfiles, messages
    Apply all migrations: admin, contenttypes, polls, auth, sessions
    Synchronizing apps without migrations:
    Creating tables...
    Running deferred SQL...
    Installing custom SQL...
    Running migrations:
    Rendering model states... DONE
    Applying polls.0001_initial... OK
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