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Author Archive

Plan Next Again

1. NT on Google App Engine 2. Project with someone 3. Django + mongodb/mysql 4. so on

Python, Django, MongoDB

最近在看 Python + Django , 因为想取代现在 NTRpg 的结构, 并且容易以后继续开发. 目前大多数的框架都支持 SQL 数据库, 但是在和 zeg 讨论之后, 他说他正在给 NGA 寻找 NoSQL 的数据库来方便索引搜索等. 首先我们定位到了日本 mixi 在使用的 Tokyo 系列, 不过 zeg 测试下来后, 似乎速度不错, 但是索引不行. 于是又找到了 MongoDB. 随后谈到用什么语言来架构, 因为 NGA 用的是 PHP, 并且 zeg 比较熟悉, 所以他建议使用 PHP 来开发. 可惜的是, 我是一个热血冲动,喜欢新鲜刺激玩意儿的人, 最近在比较了 PHP, Django, RoR 之后, 觉得 Django 就是我想要的那个东西(我也不知道是什么东西, 就是看到之后热血澎湃)! 于是乎, [...]

Ruby on Rails Simple Notes

to increment a string like ’14T0001′ or even simple string ’2′, fast way is ‘succ’! irb(main):001:0> u = ’14T0001′ => "14T0001" irb(main):002:0> u.succ! => "14T0002" irb(main):003:0> puts u 14T0002 => nil irb(main):04:0> puts u 14T0002 => nil

My first Redmine Plugin – Clients

For each project, they can have some clients who are not members. And reporter can select one of them as client (issue requester/issue contact/others) in each issue. Made this for my company internal usage. We have lots of customers who belongs to different suburbs/projects. Supporter will get lots of issues everyday, they need know as [...]

Vim snipMate set two snippets for one file type

找了一个 django 的 snippet, 发现每次打开 .py 文件只加载 python.snippets, 而不会加载 django.snippets, 需要在 ~/.vimrc 内设置下 filetype indent plugin on " auto load django/python snip autocmd FileType python set ft=python.django autocmd FileType html set ft=html.django_template

CSS Reset Notes

備份下 html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, [...]

Ruby on Rails – update records without timestamping

Ruby 裡每次更新一條 record 都會自動更新 updated_at 時間戳, 但是有時候比如只是更新點擊的時候, 并不想更新 updated_at, 就需要用到 User.record_timestamps=false 這個方法了. 但是問題是,如果用了這個方法的同時, 有人更新了 User 表內的其他一條 record, 那麼那條 record 也不會更新 updated_at. 需要單獨創建一個 instance 來使用. 把以下代碼粘貼進 environment.rb module ActiveRecord class Base def update_record_without_timestamping class << self def record_timestamps; false; end end save! class << self def record_timestamps; super ; end end end end end 另外一個比較好的方法是使用 remove_method [...]

PHP Simple Digital Captcha

Captcha.php文件: <?php session_start(); Header("Content-type: image/PNG"); $im = imagecreate(44,18); //captcha size $back = ImageColorAllocate($im, 245,245,245); imagefill($im,0,0,$back); //background color srand((double)microtime()*1000000); //genereate 4 digital numbers for($i=0;$i<4;$i++){ $font = ImageColorAllocate($im, rand(100,255),rand(0,100),rand(100,255)); $authnum=rand(1,9); $vcodes.=$authnum; imagestring($im, 5, 2+$i*10, 1, $authnum, $font); } for($i=0;$i<100;$i++) { //make it hard to read $randcolor = ImageColorallocate($im,rand(0,255),rand(0,255),rand(0,255)); imagesetpixel($im, rand()%70, rand()%30, $randcolor); } ImagePNG($im); ImageDestroy($im); $_SESSION['vcode'] = [...]

Mac 下 NTFS 的讀取

NTFS-3G 安裝完成,重啟之後變能支持 NTFS 的寫操作了

SQL Query on Special Order

SELECT suburb_id, suburb_name FROM suburbs ORDER BY (case suburb_name when ‘Sydney’ then 0 when ‘Melbourne’ then 1 else 2 end), suburb_name This will put the Sydney as the first result, Melbourne as the second result, and all others suburbs ordered by suburb_name, from A-Z

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