Django_admin组件
作者：Eric 微信：loveoracle11g
新建Django项目bms图书管理系统
App为book
book.models.py添加表关系
from django.db import models
# Create your models here.
class Author(models.Model):
nid = models.AutoField(primary_key=True)
name = models.CharField(max_length=32)
age = models.IntegerField()
# 与AuthorDetail建立一对一的关系
authorDetail = models.OneToOneField(to="AuthorDetail", on_delete=models.CASCADE)
class AuthorDetail(models.Model):
nid = models.AutoField(primary_key=True)
birthday = models.DateField()
telephone = models.BigIntegerField()
addr = models.CharField(max_length=64)
class Publish(models.Model):
nid = models.AutoField(primary_key=True)
name = models.CharField(max_length=32)
city = models.CharField(max_length=32)
email = models.EmailField()
class Book(models.Model):
nid = models.AutoField(primary_key=True)
title = models.CharField(max_length=32)
publishDate = models.DateField()
price = models.DecimalField(max_digits=5, decimal_places=2)
# 与Publish表建立一对一的关系，外键字段建立在多的一方
publish = models.ForeignKey(to="Publish", to_field="nid", on_delete=models.CASCADE)
# 与Author表建立多对多的关系，ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表
authors = models.ManyToManyField(to="Author",)
敲两条命令迁移数据
F:\深圳骑士计划\crm\bms>python manage.py makemigrations
Migrations for 'book':
book\migrations\0001_initial.py
- Create model Author
- Create model AuthorDetail
- Create model Book
- Create model Publish
- Add field publish to book
- Add field authorDetail to author
F:\深圳骑士计划\crm\bms>python manage.py migrate
Operations to perform:
Apply all migrations: admin, auth, book, contenttypes, sessions
Running migrations:
Applying contenttypes.0001_initial... OK
Applying auth.0001_initial... OK
Applying admin.0001_initial... OK
Applying admin.0002_logentry_remove_auto_add... OK
Applying admin.0003_logentry_add_action_flag_choices... OK
Applying contenttypes.0002_remove_content_type_name... OK
Applying auth.0002_alter_permission_name_max_length... OK
Applying auth.0003_alter_user_email_max_length... OK
Applying auth.0004_alter_user_username_opts... OK
Applying auth.0005_alter_user_last_login_null... OK
Applying auth.0006_require_contenttypes_0002... OK
Applying auth.0007_alter_validators_add_error_messages... OK
Applying auth.0008_alter_user_username_max_length... OK
Applying auth.0009_alter_user_last_name_max_length... OK
Applying book.0001_initial... OK
Applying sessions.0001_initial... OK
多出了一个db.sqlite3文件
http://127.0.0.1:8000/admin
它给我跳转到登录界面了，它里面用的是redirect
打开Run manage.py Task
输入命令
manage.py@bms > createsuperuser 输入用户名：yuan 邮箱：不写 输入密码：yuan1234 再次输入密码：yuan1234