2、django初始化配置及創(chuàng)建數(shù)據(jù)庫(kù)表

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

本章節(jié)官網(wǎng)詳細(xì)參考：https://docs.djangoproject.com/zh-hans/2.1/intro/tutorial02/
1、配置pymysql代替MySQLdb
在需要的項(xiàng)目中（D:\mysite\polls下的init.py)添加如下內(nèi)容

import pymysql
pymysql.install_as_MySQLdb()

2、服務(wù)器創(chuàng)建mysite數(shù)據(jù)庫(kù)，配置權(quán)限允許訪問(wèn)數(shù)據(jù)庫(kù)的IP

3、配置允許所有主機(jī)訪問(wèn)
mysite\settings.py
ALLOWED_HOSTS = ["*"]

4、數(shù)據(jù)庫(kù)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、配置包含應(yīng)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、注釋csrf驗(yàn)證
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、創(chuàng)建存放靜態(tài)html文件目錄，所有靜態(tài)文件放此目錄下
即建一個(gè)templates再建polls

8、創(chuàng)建存放bootstarp文件目錄，所有boostarp文件放此目錄下
即建一個(gè)static再建polls

9、創(chuàng)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）為模型的改變生成遷移文件。

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）開(kāi)始建表
python manage.py migrate

一、django管理頁(yè)面
1）創(chuàng)建一個(gè)管理員賬號(hào)

2) 向管理頁(yè)面加入投票應(yīng)用
polls/admin.py
from django.contrib import admin
from .models import Question
admin.site.register(Question)

3）重啟訪問(wèn)
ide重啟項(xiàng)目，訪問(wèn)：http://127.0.0.1:8000/admin/