rails新环境

sudo apt-get install gcc build-essential g++ libssl-dev libreadline5-dev zlib1g-dev linux-headers-generic libxml2-dev libcurl4-openssl-dev curl git-core bison zlib1g subversion autoconf libpcre3-dev iptux mysql-server-5.1 libevent-dev openssh-server imagemagick libmysql-ruby libmysqlclient-dev libsqlite3-dev

参考了
http://www.cnblogs.com/lexus/archive/2011/05/30/2063049.html

install rvm

bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)
rvm -v
查看 rvm版本1.6.32
rvm install 1.9.3
rvm list
rvm 1.9.3 --default
rvmsudo gem install passenger
<kbd>passenger-install-nginx-module</kbd>
回车，选择1推荐安装
The Nginx configuration file (/opt/nginx/conf/nginx.conf)
must contain the correct configuration options in order for Phusion Passenger
to function correctly.

This installer has already modified the configuration file for you! The
following configuration snippet was inserted:

  http {
      ...
      passenger_root /home/mlzboy/.rvm/gems/ruby-1.9.3-preview1/gems/passenger-3.0.8;
      passenger_ruby /home/mlzboy/.rvm/wrappers/ruby-1.9.3-preview1/ruby;
      ...
  }

After you start Nginx, you are ready to deploy any number of Ruby on Rails
applications on Nginx.



Deploying a Ruby on Rails application: an example

Suppose you have a Ruby on Rails application in /somewhere. Add a server block
to your Nginx configuration file, set its root to /somewhere/public, and set
'passenger_enabled on', like this:

   server {
      listen 80;
      server_name www.yourhost.com;
      root /somewhere/public;   # <--- be sure to point to 'public'!
      passenger_enabled on;
   }

And that's it! You may also want to check the Users Guide for security and
optimization tips and other useful information:

  /home/mlzboy/.rvm/gems/ruby-1.9.3-preview1/gems/passenger-3.0.8/doc/Users guide Nginx.html

Enjoy Phusion Passenger, a product of Phusion (www.phusion.nl) :-)
http://www.modrails.com/

Phusion Passenger is a trademark of Hongli Lai & Ninh Bui.


<code></code><pre><pre class="shell" style="margin-top: 0px; margin-bottom: 0px;">#gem install bundler
gem install rails

rails new xxx -JT -d mysql

参考http://lihbobo.iteye.com/blog/1060851


install komodo-edit
wget http://downloads.activestate.com/Komodo/releases/6.1.2/Komodo-Edit-6.1.2-8334-linux-libcpp6-x86.tar.gz

进入到工程目录中修改Gemfile文件，加入如下行：

gem "jquery-rails"<br />bundle install<br />rails g jquery:install<br /><br />参考<br />

http://www.blog.bridgeutopiaweb.com/post/how-to-use-jquery-for-rails-3/


修改mysql编码及时区
参考
http://www.cnblogs.com/lexus/archive/2010/12/10/1902646.html

安装mysql可视化工具
sudo apt-get install mysql-query-browser mysql-admin
sudo apt-get install gnome-do

rake -vT
rake -T
rake db:create
rake db:migrate


生成 CRUD的代码
rails g nifty:scaffold category name:string hidden:boolean lost:boolean


使用以下方式来增加字段

rails g migration add_column_to_posts lost_id:integer have_id:integer

Generating rails migrations for adding a column

The way to generate a migration for adding a column in rails is this:

  script<span style="color:#006600; font-weight:bold;">/</span>generate migration add_fieldname_to_tablename fieldname:<span style="color:#CC0066; font-weight:bold;">string</span>

That will generate a file db/migrate/20080116021059_add_fieldname_to_tablename.rb that looks like this:

<span style="color:#9966CC; font-weight:bold;">class</span> AddFieldnameToTablename <span style="color:#006600; font-weight:bold;"><</span> <span style="color:#6666ff; font-weight:bold;">ActiveRecord::Migration</span>  <span style="color:#9966CC; font-weight:bold;">def</span> <span style="color:#0000FF; font-weight:bold;">self</span>.<span style="color:#9900CC;">up</span>    add_column <span style="color:#ff3333; font-weight:bold;">:tablename</span>, <span style="color:#ff3333; font-weight:bold;">:fieldname</span>, <span style="color:#ff3333; font-weight:bold;">:string</span>  <span style="color:#9966CC; font-weight:bold;">end</span>    <span style="color:#9966CC; font-weight:bold;">def</span> <span style="color:#0000FF; font-weight:bold;">self</span>.<span style="color:#9900CC;">down</span>    remove_column <span style="color:#ff3333; font-weight:bold;">:tablename</span>, <span style="color:#ff3333; font-weight:bold;">:fieldname</span>  <span style="color:#9966CC; font-weight:bold;">end</span> <span style="color:#9966CC; font-weight:bold;">end</span>

Took me depressingly long to figure that out through Google. I’ve also sort of acquiesced to the notion of migrations. I still feel like it sucks that there is no centralized table definition. But it seems good for upgrading and everything once the tables are in use. So I guess migrations are a good thing.

Failed Google searches: rails migrations, rake add column, rake add_column, rails how to add a column, script/generate migration add_column, generating migrations add_column, generate migrations

参考
http://erikonrails.snowedin.net/?p=125


关于多个tag插件的选择
http://stackoverflow.com/questions/5130657/tagging-in-rails-3

最后使用

gem 'acts-as-taggable-on'<br /><br />