One night with Agenda Python Django MTV Django
- Slides: 45
One night with
Agenda • • • Python快速入门 Django介绍 MTV的架构 Django应用结构 ORM URL Dispatch和视图 • 模板处理
流程控制 • IF … ELSE • LOOP – FOR … in [Range] – WHILE
模块管理 • PYPI – Pip – easyinstall
创建第一个Django的Project django-admin. py startproject [proj name]
Django的App • 每个App必须被注册到settings. py的 INSTALLED_APP中 • Django有很多自带的APP,提供了许多方便 的功能 – django. contrib. auth, 用户认证 – django. contrib. admin, 后台管理应用 – …
Relationship • 外键 – Foreign. Key • 一对一的映射 – One. To. One. Field • 多对多的映射 – Many. To. Many. Field
Query. Set • Filter/exclude/all 三个API返回的都是一个 Query. Set的对象 • Query. Set可以理解为Model实例的集合 • Lazy Mode • Query. Set in Chain Blog. objects. all(). filter(count__lt = 10)
URL匹配 • 支持正则表达式 • 获取URL参数, /blogs/[blog_id] – r’^blogs/(d{10})/$’ • Name group – r’^blogs/(? P<blogid>d{10})/$’
URL与视图的映射 • 无参数的映射 – url(r’^test/$’, get_blog_view) • 带位置参数的映射 – url(r’^(d{4})/$’, get_blog_view) – def get_blog_view(req, bid): … • 关键字参数的映射 – url(r’^(? P<blogid>d{4})/$’, get_blog_view) – def get_blog_view(req, blogid): …
模板上下文 • 视图函数返回一个模板的时候,需要传入 一个上下文(Context) • Context是一个字典,Key表示的是模板中的 变量名字,Value表示渲染完成后实际展示 在Html中内容 def current_datetime(request): now = datetime. now() return render_to_response('current_datetime. html', {'current_date': now})
模板继承 • Block … Extend • 减少冗余的Html代码 – CSS,HEADER,FOOTER
Django Admin • Django自带的后台管理页面 • 需要在INSTALLED_APP 中安装 `django. contrib. admin` • Admin自动实现了对于Model的CRUD的管理 • 把应用中的Model注册到Admin中,方便管 理,`admin. site. register(Blog)` • 特殊的Admin的用户
THANKS
- Django agenda
- Social network with django
- Python django template
- Louise norton
- Beyond scared straight anthony
- Pop music video conventions
- Mtv borç ödeme
- Mtv app inventor
- Agenda sistemica y agenda institucional
- Back to school night agenda
- Yves reinhardt
- Little sussie
- Load balancer django
- Django orm
- Django graph visualization
- Django web socket
- Django
- Django reinhardt documentary
- Symbolism in night
- Silent night holy night all is calm all is bright
- One god one empire one emperor
- One one one little dog run
- One king one law one faith
- Byzantine definition
- One ford plan
- See one do one teach one
- See one, do one, teach one
- Willow cabin speech
- See one do one teach one
- One vision one identity one community
- One vision one identity one community
- One night a theater sold 548
- One snowy night nick butterworth
- Five six seven
- Fictional character中文
- By one man sin
- One direction songs with alliteration
- Place value of 300
- Othello summary act 1 scene 1
- One team one mission
- One goal one passion
- One gene one polypeptide concept
- Maybe this one moment with this one person
- One voice one look
- One futureworld
- One and ones grammar