练习创建wiki,留言板功能,使用django的app功能
在djangotest1目录下创建应用

./manage.py startapp wikitest
进入wikitest文件夹,自动生成文件如下:
wikitest/
    __init__.py
    models.py
    views.py
    tests.py
 
修改urls.py,添加
urlpatterns += patterns(”,

    url(r’^wiki/$’,'wikitest.views.index’),
    url(r’^wiki/(?P<pagename>\w+)/$’,'wikitest.views.index’),
    url(r’^wiki/(?P<pagename>\w+)/edit/$’,'wikitest.views.edit’),
    url(r’^wiki/(?P<pagename>\w+)/save/$’,'wikitest.views.save’),

)

 
 
 
编辑models.py
 
from django.db import models

 
# Create your models here.
class wiki(models.Model):
    ”’wiki model file”’
    pagename = models.CharField(max_length=20,unique=True)

    content = models.TextField()

 
 
编辑views.py
 
rom wikitest.models import wiki

from django.template import loader,Context
from django.http import HttpResponse,HttpResponseRedirect
from django.shortcuts import render_to_response
 
def index(request,pagename=”"):
    ”’显示页面,为页面的文字做特殊的连接处理”’
    if pagename:
        pages = wiki.objects.filter(pagename=pagename)
        if pages:
            return process(‘wiki/page.html’,page[0])
        else:
            return render_to_response(‘wiki/edit.html’,{‘pagename’:pagename})
    else:
        page = wiki.objects.get(pagename=’FrontPage’)
        return process(‘wiki/page.html’,page)
 
def edit(request,pagename):
    page = wiki.objects.get(pagename=pagename)
    return render_to_response(‘wiki/edit.html’,{‘pagename’:pagename,’content’:page.content})
 
def save(request,pagename):
    content = request.POST['content']
    pages = wiki.objects.filter(pagename=pagename)
    if pages:
        pages[0].content = content
        pages[0].save()
    else:
        page = wiki(pagename=pagename,content=content)
        page.save()
    return HttpResponseRedirect(‘/wiki/%s’ %pagename)
 
import re
r = re.compile(r’\b(([A-Z]+[a-z]+){2,})\b’)
 
def process(template,page):
    t = loader.get_template(template)
    content = r.sub(r’<a href=”wiki/\1″>\1</a>’,page.content)
    content = re.sub(r’[\n\r]+’,'<br/>’,content)
    c = Context({‘pagename’:page.pagename,’content’:content})

    return HttpResponse(t.render(c))

 
 
修改settings.py,在INSTALLED_APPS中添加
‘wikitest’,
 
执行
./manage.py syncdb
 
 
在templates/wiki/中添加
page.html
<h2>{{ pagename }} <h2>

<p>{{ content|safe }} </p>
<hr />
<p><form method=”post” action=”/wiki/{{ pagename }}/edit/” >
<input type=”submit” value=”edit” />

</form></p>

 
edit.html
 
<h2> Edit: {{ pagename }} </h2>

<form method=”post” action=”/wiki/{{ pagename }}/save/”>
<textarea name=”content” rows=10 cols=50>{{ content }} </textarea>
<input type=”submit” value=”save” />

</form>

 
此时可以通过地址
 
 

http://skyortho.com.ua

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