Detailed introduction to database settings in django (code example)

This article brings you a detailed introduction (code example) about database settings in Django. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

1. First define the table name and fields of the database

2. Start the mysql database bash mysql.server start

3. Install pymysql pip install pymysql

PyMySQL is a library used to connect to the MySQL server in the Python3.x version, and mysqldb is used in Python2.

1. Add the following code to the _init_.py file:

pymysql.install_as_MySQLdb()

1. New database

   mysql -u root -p Log in root
   show databases Show database
   create database mysite Create database
   

2. settings.py Configure the database:

2) Modify the DATABASES option of the settings.py file to configure the database
3) Set what you want to use database. For example, mysql

DATABASES = {
'default': {
    'ENGINE': 'django.db.backends.mysql',
    'NAME': 'mysite',
    'USER': 'root',
    'PASSWORD': '12345678',
    'HOST': 'localhost',
    'PORT': '3306',
}
}

1. Create app

Use the command python manage.py startapp myApp, and then generate the myApp directory and related files.
admin.py Site configuration
models.py Define model
views.py Define view

1. Activate app

INSTALLED_APPS = [

'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'myApp',

2) Define the model, one database table corresponds to one model.
Add something similar to the following in models.py:
class Grades(models.Model):

gname = models.CharField(max_length=20)
gdate = models.DateTimeField()
ggirlnum = models.IntegerField()
gboynum = models.IntegerField()
isDelete = models.BooleanField(default=False)

python manage.py makemigrations
python manage.py migrate

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