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3/11/2007

Blog要搬家罗

微软提供的这个space速度实在太慢，而且偶尔还出点小错误，终于有点想法想到blogger上去安家了，亲爱的朋友们，请多关照哦，
新的blog地址： http://caojun-vincent.blogspot.com/

今天到http://groups.diigo.com 上看了最新的东东，发现一个group很好玩，45个member，13个bookmark,开始以为是哪个学校的班级开了个group，后来才觉得似乎是一群‘妈妈’在里面讨论怎么培养自己的小孩，一个bookmark居然能跟到68个讨论（加hightlights）
技术是真的可以极大改进人们的生活的

p.s: 顺便推荐一个好玩的group给大家：http://groups.diigo.com/groups/mustsee 一起分享有趣的任何事情

6:27:25 PM | Add a comment | Permalink | Blog it | 自娱自乐

3/10/2007

Post by Diigo 03/09/2007

Ruby on Rails Manual ActiveRecord::Base-inheritance_column Annotated

Defines the column name for use with single table inheritance — can be set in subclasses like so: self.inheritance_column = "type_id"

class User < ActiveRecord::Basedef 
self.inheritance_column() 'role' end
 def admin?
   false
 end
end

class Admin < User
 def admin?
  true
 end
end

database table would look like this:

user
- id
- username
- role = User || Admin

研究rforum源码的时候碰到，初始化user对象时，自动根据role识别初始化的对象型别（Admin or User），原来是rails中表继承的应用，模型层维护好继承关系，数据模型底层，必须设置一个type（默认字段）字段以记录不同对象，也可以如它所说，self.inheritance_column = "column" 来设置这个字段 - post by vincent

8:30:06 AM | Add a comment | Permalink | Blog it | 技术笔记

3/9/2007

祝愿

     同一天里一个好消息一个坏消息：
    女朋友的考研成绩终于出来了，让她担心的英语居然上了60分，呵呵，确实是个不小的鼓励，一年来的努力，多少泪水，多少汗水，还有好多次几乎撑不下去，刚认识的时候开心天真的性格，磨练得‘酷’了不少，我得说，你真棒，很替你高兴。
    在我的追问下，爸爸终于告诉我，奶奶最近身体不太好，据说是腿上长了颗瘤子，挡住了血管，还不好做手术，心想奶奶这会肯定是很难受了。去年开始来成都工作，过年放了7天假，没有赶回家过年，记得年初二的时候，堂妹给我电话说，爷爷奶奶很想见我，让我突然很想见他们~
    在成都的日子是我第一次开始打拼自己的生活，很多快乐，很多艰辛，也有很多只有自己体会过，才知道的酸甜苦辣。祝愿奶奶身体早日康复，祝愿熹熹早日实现自己的理想，过自己喜欢生活，也祝愿我自己不断努力，不断前进~

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3/8/2007

Post by Diigo 03/07/2007

http://threebit.net/tutorials/nestedset/tutorial1.html Annotated

What is a Nested Set?
The Nested Set is an adjacent list realized in SQL as a tree. For a good slide show on the Nested Set theory check this site out.

Fastcgi到底是什么样的技术 (转)_不透明的雾

8:30:21 AM | Add a comment | Permalink | Blog it

3/7/2007

Post by Diigo 03/06/2007

LoudLit.org: Collection

Bulletproof Ajax by Jeremy Keith

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3/6/2007

Diigo的新Feature

继Diigo V2发布以来，Diigo又相继发布了一些小的Feature但是特别实用，如，preview, about等
我个人特别喜欢preview这个feature：
每个bookmark item后面有个preview很有创意。节省了浏览原网页，跳转的时间，直接在diigo site上浏览在做决定，而且似乎还可以直接在preview中highlight, that cool~

5:37:14 PM | Add a comment | Permalink | Blog it | 技术笔记

Post by Diigo 03/05/2007

Beast

techno weenie

Core team behind Ruby on Rails Annotated

David Heinemeier Hansson (nextangle) extracted Ruby on Rails from his work on Basecamp. He released the framework as open source in July of 2004, but didn't share the commit rights until February of 2005. Among the core team, he's infamous for his ruthless delegation, which is often executed as a request to "Please Do Investigate". He's a partner at 37signals and an opinionated blogger.

Jeremy Kemper (bitsweat) is a programmer at CD Baby in Portland, Oregon. Hot on the heels of DHH, he has been the most active contributor to Rails. He's knee deep in pretty much all aspects of the framework and one of the top batters against new, incoming tickets.

Jamis Buck (minam) is a repentant Java programmer who never really enjoyed Java, but who finally found web-programming joy in Rails. He is an avid Ruby programmer, having contributed several packages to the community (including Net::SSH, Net::SFTP, Syntax, sqlite-ruby, sqlite3-ruby, SwitchTower and others). He is currently employed at 37signals, working from his home in Provo, Utah. He and his wife Tarasine have been married for 8 years. They have two children.

Nicholas Seckar (ulysses) is a student and software engineer living in Toronto, Canada. Nicholas has been contributing to Ruby and Rails since Fall 2004, with numerous bug fixes and new features such as Routing. He has been a developer on Measure Map since August 2005. He is currently completing his undergraduate degree at the University of Toronto, while also working for Google in their Toronto engineering department.

Florian Weber (csshsh) lives and works in Hamburg, Germany. He discovered Rails back in May 2004 and then decided to develop a CMS and Shop for Bellybutton with it.

Marcel Molina Jr. (noradio) is a language enthusiast who went from being a literature major to a programmer. In his transition from natural language to machine language he found Ruby an elegant balance of dynamic, pragmatic and “humane”. And then came along Rails…. Marcel tumblelogs on Projectionist and tries to help keep your apps running smoothly as a developer at FiveRuns.

Michael Koziarski (nzkoz) is a software consultant based in Wellington, New Zealand. After a successful stint as an enterprise Java developer, he switched to rails shortly after the first public release. He’s a contributor to The Rails Way and maintains a personal blog.

Sam Stephenson (sam-) is a fan of dynamic languages who found Ruby just six months before Rails’ first release. In February of 2005, he released the Prototype JavaScript library, which provides the foundation for Ajax support in Rails. Sam lives in Chicago, works for 37signals, and tumblelogs on Projectionist.

Scott Barron (htonl) was set to swear off computers forever and become a plumber when Rails was released. He immediately found salvation in the warm embrace of Ruby and has never looked back. He currently practices Rails by working for Joyent.

Thomas Fuchs (madrobby) is a software architect from Vienna, Austria. He is the author of script.aculo.us, a cross-browser JavaScript framework featuring advanced Ajax UI controls, visual effects and other niceties. Thomas wrote the “Web 2.0” chapter in the Agile Web Development with Rails book. As a member of wollzelle, he is busy making fluxiom the next big thing in Digital Asset Management.

Tobias Lütke (xal) encountered Rails while struggling to find technology for his new company. Once found, he quickly ported the bits and pieces of his code over to Ruby which later became the first rails based e-commerce store “Snowdevil”. Tobi is a partner at JadedPixel and is frantically working on Shopify which is the continuation of the Snowdevil code base. Over time, Tobi released many open source projects such as Typo, Hieraki, and Liquid.

Rick Olson (technoweenie) > blames Ruby on Rails for > destroying his ASP.Net career. After tinkering in the framework for nearly a > year, he decided to start full-time freelancing on Rails projects in January of > 2006 and couldn't be happier. He's behind the > Rails Weenie > community help site, and > has released the open source weblog > Mephisto > along with > numerous plugins > . >

8:30:06 AM | Add a comment | Permalink | Blog it

3/5/2007

Post by Diigo 03/04/2007

可爱的老头精力旺盛的互联网之父Cerf-无聊布棉的blog Annotated

这老头最牛的地方，就是精力旺盛。在昨天，从早上到下午，至少有4、5场专访，滔滔不绝，几乎不拒绝所有的问题。我当时就问跟踪的凯锋，你疯了吗？他说接近崩溃了。哈哈。王乐问了个问题，你加入Google，又研究火星互联网，又是ICANN的主席等等，哪有那么多精力，Cerf说，首先我认为睡觉是浪费时间，所以我睡觉的时间是尽可能地短，第二，我认为一个人如果已经进入了一种高速前进的状态就不应该减速，应该以同样的速度继续地前进下去，也就是说当时速达到每小时900英里的时候，一旦减速就会发生事故。