Django beginner <1>

1. Project VS Application

What is the difference between project and application?

A project is a collection of configurations and applications used by a website.

An application is a web application dedicated to doing something -- like a blogging system, or a database of public records, or a simple voting program.

A project can contain many applications.

Applications can be used by many projects.

2.Django2.0 connects to MySQL database

After all kinds of thunder

I also don't know which step is the key factor

step1: uninstall python 32 bit

step2: install python 64 bit

step3：pip install PyMySQL

step4：pip install mysqlclient

step5: Modify settings.py

INSTALLED_APPS = [
    'polls.apps.PollsConfig','django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles',]
    
 
 
 
 
 


DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'supermarket',
        'USER': 'root',
        'PASSWORD': 'password',
        'Host': 'localhost',
        'PORT': '3306',
    }
}

step6: Modify the models.py file

from django.db import models


class Question(models.Model):
    question_text = models.CharField(max_length=200)
    pub_date = models.DateTimeField('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)

step7: Execute python manage.py makemigrations

step8: Execute python manage.py migrate

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