2、django初始化配置及创建数据库表

客官°小女子只卖身不卖艺 2022-10-02 09:58 146阅读 0赞

上一章https://blog.51cto.com/yht1990/2382801

本章节官网详细参考：[https://docs.djangoproject.com/zh-hans/2.1/intro/tutorial02/][https_docs.djangoproject.com_zh-hans_2.1_intro_tutorial02]  
1、配置pymysql代替MySQLdb  
在需要的项目中（D:\\mysite\\polls下的**init**.py)添加如下内容

import pymysql
    pymysql.install_as_MySQLdb()

2、服务器创建mysite数据库，配置权限允许访问数据库的IP

3、配置允许所有主机访问  
mysite\\settings.py  
`ALLOWED_HOSTS = ["*"]`

4、数据库配置  
mysite\\settings.py

DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.mysql',
            'NAME': 'mysite',
            'USER': 'root',
            'PASSWORD': '123456',
            'HOST': '192.168.20.217',
            'PORT': '3306',
        }
    }

5、配置包含应用  
mysite\\settings.py

INSTALLED_APPS = [
        'polls.apps.PollsConfig',  #添加的配置
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
    ]

6、注释csrf验证  
mysite\\settings.py

MIDDLEWARE = [
        'django.middleware.security.SecurityMiddleware',
        'django.contrib.sessions.middleware.SessionMiddleware',
        'django.middleware.common.CommonMiddleware',
        #'django.middleware.csrf.CsrfViewMiddleware',
        'django.contrib.auth.middleware.AuthenticationMiddleware',
        'django.contrib.messages.middleware.MessageMiddleware',
        'django.middleware.clickjacking.XFrameOptionsMiddleware',
    ]

7、创建存放静态html文件目录，所有静态文件放此目录下  
即建一个templates再建polls  
![2、django初始化配置及创建数据库表][2_django]

8、创建存放bootstarp文件目录，所有boostarp文件放此目录下  
即建一个static再建polls  
![2、django初始化配置及创建数据库表][2_django 1]

9、创建模型  
polls/models.py

from django.db import models
    
    class Question(models.Model):
        question_text = models.CharField(max_length=200)
        pub_date = models.DateField('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)

10、建表  
1）为模型的改变生成迁移文件。

D:\mysite>python manage.py makemigrations
    Migrations for 'polls':
      polls\migrations\0001_initial.py
        - Create model Choice
        - Create model Question
        - Add field question to choice

2）开始建表  
`python manage.py migrate`

一、django管理页面  
1）创建一个管理员账号  
![2、django初始化配置及创建数据库表][2_django 2]

2) 向管理页面加入投票应用  
polls/admin.py  
from django.contrib import admin  
from .models import Question  
admin.site.register(Question)

3）重启访问  
ide重启项目，访问：`http://127.0.0.1:8000/admin/`

转载于:https://blog.51cto.com/yht1990/2382898

[https_docs.djangoproject.com_zh-hans_2.1_intro_tutorial02]: https://docs.djangoproject.com/zh-hans/2.1/intro/tutorial02/
[2_django]: https://s1.51cto.com/images/blog/201904/29/978b8fbe84660dc2b7462f904a063e8f.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[2_django 1]: https://s1.51cto.com/images/blog/201904/29/14432d9511a27d78ee6f638b99730baa.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[2_django 2]: https://s1.51cto.com/images/blog/201904/22/59958100e5354c51d9040f8776150c33.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=