open pycharm, Click on File->New Project…
Click on Django, hold Location Set it to suit yourself , If the Anaconda Words ,Project Interpreter Item default , Click on More Settings, stay Application name Fill in a Appname.app It can be understood as a function in a project , In the future, multiple functions can be created app, Just need to be in the project Terminal Enter... There ：django-admin startapp app Name can create a new app.
After opening the database , Input create database Data table name ;
DATABASES = {
‘default’: {
‘ENGINE’: ‘django.db.backends.mysql’,
‘NAME’: Database name ,
‘USER’: ‘root’,
‘PASSWORD’: Database password ,
‘HOST’: ‘localhost’,
‘POST’: 3306
}
}
Before generating the migration file , Need to be in In the project folder __init.py__ Add two statements to the file ：
import pymysql
pymysql.install_as_MySQLdb()
python manage.py makemigrations
python manag.py migrate
here app In the catalog migrations The folder will automatically generate a 0001_initial.py file , This file needs to be deleted and regenerated for later modification of model data
STATIC_URL = ‘/static/’
# This is the path to set the static folder Directory
STATICFILES_DIRS = (
os.path.join(BASE_DIR, ‘static’),
)
# Set file upload path , Image upload 、 All uploaded files will be stored in this directory
MEDIA_URL = ‘/media/’
MEDIA_ROOT = os.path.join(BASE_DIR, ‘media’)
stay app In the catalog admin.py Write the model in the document
class Article(models.Model):
user = models.ForeignKey(User,on_delete=models.CASCADE,verbose_name=' author ')
title = models.CharField(' title ',max_length=100)
excerpt = models.TextField(' Abstract ',max_length=200)
body = models.TextField()
img = models.ImageField(upload_to='',verbose_name=' Article pictures ')
create_time = models.DateTimeField(' Release time ',auto_now_add=True)
mix_time = models.DateTimeField(' Modification time ',auto_now=True)
view = models.PositiveIntegerField()
category = models.ForeignKey(Category,on_delete=models.CASCADE,verbose_name=' classification ')
tags = models.ManyToManyField(Tag,verbose_name=' label ')
In this way, a field named Article Table of , There are user、title Equivalency
class User(models.Model):
name = models.CharField(' Author's name ',max_length=100)
def __str__(self):
return self.name
there User and Article Inside user Is a foreign key associated with a one to many relationship , One author corresponds to many articles
stay app In the catalog admin.py In the document admin Site configuration
from .model import Article,User
@admin.register(Article)
class ArticleAdmin(admin.ModelAdmin):
list_display = ['pk','title','category','view','create_time']
list_per_page = 50
ordering = ('-create_time',)
Yes, just now Model Created in Article Table for site registration .
list_display Represents the fields visible on the site
list_per_page each 50 One page at a time
ordering Means to arrange in reverse chronological order
@admin.register(User)
class UserAdmin(admin.ModelAdmin):
list_display = ['pk','name']
After everything is configured, click on the green triangle in the upper right corner or click on Terminal Input ：python manage.py runserver
The following words appear 
Click the blue font to enter , But before that, we need to create a super administrator , In this way, we can log in to the background site to manage data 
stay Terminal Input python manage.py createsuperuser
Then follow the prompts , Remember the user name and password , After the administrator is created , You can log in to the site
stay 127.0.0.1:8000 Add later /admin, Press enter to enter the station , Enter your username and password , Sign in 
When I used to watch some tutorials , hold 
there DEBUG Change to False, As a result, the site does not css Format
Now you can add data in the background according to your needs ！
