zzhang

最近要为公司一个程序加数据统计代码。在Ubuntu环境下checkout下整个程序，发现无法打开server，出错信息如下：=> Booting Mongrel (use 'script/server webrick' to force WEBrick)=> Rails application starting on http://0.0.0.0:3000=> Call with ...

I wrote some gems in my project, but testing them is a big pain.Everytime I want to make sure all functions work, I need to make a test model outside gem and test there. Here is one solution:m...

Spend a week for data migration.  Here are some things I learned:1. class OldScenario < ActiveRecord::Base establish_connection configurations['old_db'] set_table_...

学习ruby on rails 两年了，期间使用过Eclipse和Netbeans，半年以前开始使用emacs。经过刚开始的不适，半年来不断到处拷代码，改配置。最近感觉逐渐使得顺手了。把配置贴出来做一个记录，也希望能对其他人有启发或者帮助 :) model:[img]http://zzhang.iteye.com/upload/attachment/131957/3cab88d...

no need download cheat anymore:)in install:sudo gem install cheatuse:cheat <sheet name>see all:cheat sheetshelp:cheat cheat

used "rails best practices" today. details see:http://github.com/flyerhzm/rails_best_practices  below are the refactor advices for my app :./config/routes.rb:58 - not use default route./...

1.old codedef page_group_toolbar(page_group) c = "" case page_group.class_name when "Preparation" c << li_link_to(t("Preparation"), admin_self_study_page_groups_path(:scenario_...

refactor below code:  def preparation?(page_group) page_group.class_name == "preparation".camelize end def task_card?(page_group) page_group.class_name == "task_card".camelize...

Use sometime to learn stub and mock.I think below is a good example: code: def create_from_content(content) page_content = PageContent.new(content) templet = page_content.temp...

1.stub meet "one to many" relationship Here is the code:describe "original_content" do it "should generate page_group's original_content" do page_group = PageGroup.create pag...

In order to name method like a pro, I create this stupid method in Page model: def to_xml(type = nil) case type when :flex # ... when nil super() endend So later when I...

A bug take a long time to find out.I had a method like:  def file_not_exsit_with?(url) require 'open-uri' return open(url).read =~ /^Status: 500 Internal Server Error/ rescue puts ...

Doing long time rake, screen is a good assistant.  screen -S + name         start screen with name screen -r + name          resume a screenscreen -D + name        detach an attached scree...

some ruby tricke:   1.shorter regular expressionstring = "I am strong..."puts string[/(.*?)(\.+)/, 1]   # => I am strong 2.add methods to classclass String def test1 "tes...