Rails2.0下实现的一个mybook

我是个新手，刚开始看的第一份文档是Eiffel Qiu的《rubyonrails》一文，其中实现了一个简单的mybook例子，让人快速的体验ROR的魔法般的魅力，但是由于我下载安装的是最新发布的rails2.0，据说很多方法和插件在2.0下都不能继续使用了，比如scaffold,render_text等等，所以导致我一直没有成功的实现这个例子，正在郁闷之中，我看到了ozzzzzz在论坛里面写了一篇《rails2.02快速体验》，试验之下果然可以，写出来与各位刚入手的兄弟共享，高手大大可以跳过了。。。
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1、如果已经安装了sqlite3的话可以跳到第3步，否则下载sqlite3.exe和sqlite3.dll(已上传这两个文件，在页面最下面有下载)两个文件放入ruby的安装目录下的bin目录，比如我的是D:\ruby\bin\

2、执行以下命令

gem install sqlite3-ruby

gem install sqlite3-ruby

安装sqlite3的ruby驱动。

3、现在就可以进行ROR开发了。比如我这里要实现mybook,首先执行

rails mybook -d mysql

rails mybook -d mysql 

之所以加上"-d mysql"是将数据库改为mysql（默认为sqlite3）,然后要修改/mybook/config/下面的database.yml,比如我的修改如下：

development:
  adapter: mysql
  encoding: utf8
  database: mybook_development
  username: root
  password: root
  host: localhost

test:
  adapter: mysql
  encoding: utf8
  database: mybook_test
  username: root
  password: root
  host: localhost

production:
  adapter: mysql
  encoding: utf8
  database: mybook_production
  username: root
  password: root
  host: localhost

development:
  adapter: mysql
  encoding: utf8
  database: mybook_development
  username: root
  password: root
  host: localhost

test:
  adapter: mysql
  encoding: utf8
  database: mybook_test
  username: root
  password: root
  host: localhost

production:
  adapter: mysql
  encoding: utf8
  database: mybook_production
  username: root
  password: root
  host: localhost

4、建立数据库，执行

cd mybook
rake db:create:all

cd mybook   
rake db:create:all

，成功的话cmd会显示：

D:\rubyapps\mybook>rake db:create:all
(in D:/rubyapps/mybook)

D:\rubyapps\mybook>rake db:create:all
(in D:/rubyapps/mybook)

此时查看MySQL可以看到多出来三个表，如下图所示：


5、建立model

D:\rubyapps\mybook>ruby script/generate scaffold Mybook title:string description:text buydate:datetime

D:\rubyapps\mybook>ruby script/generate scaffold Mybook title:string description:text buydate:datetime

最后

rake db:migrate

rake db:migrate

，成功的话会有：

(in D:/rubyapps/mybook)
== 1 CreateMybooks: migrating =================================================
-- create_table(:mybooks)
   -> 0.0780s
== 1 CreateMybooks: migrated (0.0780s) ========================================

(in D:/rubyapps/mybook)
== 1 CreateMybooks: migrating =================================================
-- create_table(:mybooks)
   -> 0.0780s
== 1 CreateMybooks: migrated (0.0780s) ========================================

此时查看MySQL,可以看到数据库结构如下：

表的结构如下：

6、运行一下看看吧:)

ruby script/server

ruby script/server

然后在浏览器里面输入，我这里的效果如下：