Django 创建新App及其常用命令的实现方法

框架(架构)  /  管理员 发布于 7年前   189

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 migrationspython3 manage.py makemigrations # apply all migrationspython3 manage.py migrate # run serverpython3 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.titledemo.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.pyfrom django.http import HttpResponsedef home(request):  return HttpResponse("Hello World, Django") # urls.pyurl(r'^$', 'app1.views.home')

URL传参

# views.pydef detail(request, number):  return HttpResponse("The number is %s." % number) # urls.pyurl(r'^([0-9]+)/', 'app1.views.detail', name='detail')

URL传参查询数据库

# views.pydef 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.pyurl(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 initgit remote add [email protected]:ybbz/django-blog.gitgit add .git statusgit commit -m "django blog init"git pull Django master && git push Django master

Error: That port is already in use.

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

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。