python manage.py sqlall blog  #显示数据据命令 
 
BEGIN; 
CREATE TABLE "myblogapp_post" ( 
    "id" integer NOT NULL PRIMARY KEY, 
    "author_id" integer NOT NULL REFERENCES "auth_user" ("id"), 
    "title" varchar(200) NOT NULL, 
    "slug" varchar(200) NOT NULL, 
    "date_created" datetime NOT NULL, 
    "date_modified" datetime NOT NULL, 
    "tags" varchar(200) NOT NULL, 
    "body" text NOT NULL, 
    "body_html" text NOT NULL, 
    "lc_count" integer NOT NULL 
);   
CREATE INDEX myblogapp_post_author_id ON "myblogapp_post" ("author_id"); 
CREATE INDEX myblogapp_post_slug ON "myblogapp_post" ("slug"); 
COMMIT;

手动添加

$ sqlite3 mydatabase.sqlite3 
sqlite> ALTER TABLE myblogapp_post ADD COLUMN author_id integer REFERENCES auth_user (id); 
sqlite> .exit

INSTALLED_APPS = ( 
    # ... 
    'pagination', 
) 
 
MIDDLEWARE_CLASSES = ( 
    # ... 
    'pagination.middleware.PaginationMiddleware', 
) 
 
TEMPLATE_CONTEXT_PROCESSORS = ( 
	'django.core.context_processors.auth', 
	'django.core.context_processors.debug', 
	'django.core.context_processors.i18n', 
	'django.core.context_processors.media', 
	'django.core.context_processors.request', 
) 
 
#view.py 
from django.template import RequestContext 
context_instance=RequestContext(request)  #add post_list 
 
#index.html 
{% load pagination_tags %} 
{% autopaginate post_list 10 %} 
{% paginate %}

生成随机日志

for x in range(10000): 
   post = Post(title="Post %s%s" %(x,x) , pub_date=datetime(2010,3,6),body="POST 100%s" %(x),author=aa,slug="post-test%s" %(x),tags="post") 
   post.save()

 
from django.db import models 
 
    @models.permalink 
 
    def get_absolute_url(self): 
 	return ('blog.views.post_detail', (), {    #blog.views.post_detail与url.py中引用文件及变量相同 
		'year': self.pub_date.year, 
         	'month': self.pub_date.month,  
		'day': self.pub_date.day, 
		'slug': self.slug 
		})

MIDDLEWARE_CLASSES = ( 
    'debug_toolbar.middleware.DebugToolbarMiddleware',  #add 
) 
 
INTERNAL_IPS = ('127.0.0.1',)  #add 
 
INSTALLED_APPS = ( 
    'debug_toolbar',    #add 
)

models.ForeignKey  #one to many 
 
./manage.py reset blog  #重构数据库表，内容会丢失,reset后接应用程序名

估计是自己水平问题找了几篇django关于Feeds的设置都不行，最后在一个国外的网站找到个解决办法，需要加强学习。

feeds.py

from django.contrib.syndication.feeds import Feed 
from blog.core.models import Post 
 
class PostFeed(Feed): 
    '''Feed for latest 15 blog entries. ''' 
    Title = 'Django Blog' 
    link  = 'http://172.30.24.24:8000/blog/list' 
    description = 'Latest Blog Entries' 
 
    item_author_name = 'Gavin' 
    item_author_email = 'blog@yepn.net' 
    item_author_link = 'http://blog.yepn.net' 
 
    def items(self): 
        return Post.objects.all()[:15]   #Post输出在models中定义已经为时间倒序 
 
    def item_pubdate(self,item): 
        return item.publish

urls.py

from django.conf.urls.defaults import * 
from feeds import *   #feeds程序的路径需要特别注意 
 
#Here you add a dictionary of feeds with a slug you want them to correspond to 
 
site_feeds = { 
        'posts':BlogFeed        #blog -->为feeds/posts的feed访问形式 
} 
 
urlpatterns = patterns('', 
  #Lots of patterns omitted here 
  (r'^feeds/(?P< url >.*)/$', 'django.contrib.syndication.views.feed',{'feed_dict':site_feeds}), 
)

django 用户 
from django.contrib.auth.models import User 
 
user = User.objects.get(username='用户名')

ERROR 
 
<django.db.models.fields.related.ManyRelatedManager object at 0x01791B30> 等等一堆不知所谓的内容。 
 
原因是模板中的{{object.categories}}是一个ManyToMany类型的域，是由多个categories对象组成，因此，将模板修改如下： 
 
% for cate in object.categories.all %} 
    {{ cate }} 
{% endfor %}</div><br />

 
python manage.py sql APP    #查看生砀SQL语句 

urls.py文中

from django.conf.urls.defaults import * 
 
urlpatterns = patterns('', 
    (r'detail/(?P<pid>\d+)/$','mycompany.press.views.detail'), 
    (r'list/$', 'mycompany.press.views.press_list'), 
    (r'$', 'django.views.generic.simple.redirect_to', 
    {'url': '/press/list/'}) 
    ) 
django.views.generic.simple.redirect_to 跳转链接

修改表单之后需要重置数据库，同时数据会丢失

manage.py sqlreset address|sqlite3 data.db

django旧版可以使用 radio_admin=True 来表示在 admin 的管理界面中将使用 radio 按钮来处理

但新版不支持，所以没办法就去掉了这个，因为我一直找不到对应的功能。

向admin管理页面添加新站点 
#more address/admin.py 
 
from django.contrib import admin 
from mysite.address.models import Address  #此处为mysite->站点名.address->应用程序名.models from Address->类名 
 
admin.site.register(Address) 
 
新增管理网站之后需要重启服务 
 
#more address/models.py      #显示地址列表代码 
#coding=utf-8                              #指定编码很重要 
from django.db import models 
 
# Create your models here. 
class Address(models.Model): 
    name = models.CharField('姓名',max_length=20,unique=True) 
    gender = models.CharField('性别',choices=(('M','男'),('F','女')),max_length=1) 
    telphone = models.CharField('电话',max_length=20) 
    mobile = models.CharField('手机',max_length=11) 
    def __unicode__(self): 
        return self.name

创建address/urls.py文件

from django.conf.urls.defaults import * 
from newtest.address.models import Address 
 
info_dict = { 
    'queryset': Address.objects.all(), 
} 
urlpatterns = patterns('', 
    (r'^/?$', 'django.views.generic.list_detail.object_list', info_dict), 
) 
object_list函数特别说明，使用 object_list() 需要的模板文件名为： app_label/model_name_list.html ，这是缺省要查找的模板名。

models.CharField 变量名改变

more wiki/models.py 
from django.db import models 
 
# Create your models here. 
class Wiki(models.Model): 
        pagename = models.CharField(max_length=20, unique=True) #maxlength变量变为max_length 
        content = models.TextField()

Django 1.0开始自动转义超链

more templates/wiki/page.html 
<h2>{{ pagename }}</h2> 
{% autoescape off %} #禁用超级链代码 
<p>{{ content }}</p> 
{% endautoescape %} 
<hr/> 
<p> 
<form method="POST" action="/wiki/{{ pagename }}/edit/"> 
<input type="submit" value="編集"> 
</form></p>