Django框架创建常用命令大全

Django 创建新App及其常用命令 创建新的项目

django-admin.py startproject my_project

创建新的App

在Django项目(my_project)的根目录下执行

python3 manage.py startapp my_app

启动Django中的开发服务器

make new migrations

python3 manage.py makemigrations

apply all migrations

python3 manage.py migrate

run server

python3 manage.py runserver

创建models

class App1(models.Model):

title = models.CharField(max_length=100)

category = models.CharField(max_length=50, blank=True)

date_time = models.DateTimeField(auto_now_add=True)

def unicode(self):

return self.title

class Meta:

ordering = [’-date_time’]

进入Django中的交互式shell

python3 manage.py shell

from app1.models import App1

create(增加操作)

App1.objects.create(title=‘title’,category=‘category1’)

all和get(查看操作)

App1.objects.all()
App1.objects.get(id=1)

update(修改操作)

demo = App1.objects.get(id=1)
demo.title
demo.title=‘title2’

delete(删除操作)

demo.delete()

创建一个超级用户

python3 manage.py createsuperuser

输入http://127.0.0.1:8000/admin登录后台

数据库信息的增加和删除，admin.py中增加代码

from article.models import App1

admin.site.register(App1)

Views和URL操作

views.py

from django.http import HttpResponse
def home(request):
return HttpResponse(“Hello World, Django”)

urls.py

url(r’^$’, ‘app1.views.home’)

URL传参

views.py

def detail(request, number):
return HttpResponse(“The number is %s.” % number)

urls.py

url(r’^([0-9]+)/’, ‘app1.views.detail’, name=‘detail’)

URL传参查询数据库

views.py

def database(request, args):
post = App1.objects.all()[int(args)]
str = (“title = %s, category = %s, date_time = %s” % (post.title, post.category, post.date_time))
return HttpResponse(str)

urls.py

url(r’^id/([0-9])+/’, ‘article.views.database’, name=‘database’),

将代码上传到Github

在github中新建仓库django-blog

在项目根目录下执行

git init
git remote add Django
git@github.com:ybbz/django-blog.git
git add .
git status
git commit -m “django blog init”
git pull Django master && git push Django master

Error: That port is already in use.

ps aux | grep -i manage
kill -9 ****
python3 manage.py runserver