rails on ruby exmaples depot
1.install ruby
download from http://www.ruby-lang.org/en/news/2009/12/07/ruby-1-9-1-p376-is-released/
2.install rails
ruby gem install rails --include-dependencies
3.install mysql
download from http://sourceforge.net
ruby gem install mysql
1-3 can be down by download InstantRails from http://rubyforge.org/frs/?group_id=904 <InstantRails2.0.2>
4. create depot application:
ruby> rails --database=mysql depot
mysqladmin -u root create depot_development
ruby> rake db:migrate
ruby> ruby script/generate scaffold product title:string description:text image_url:string
ruby> ruby script/server webrick
IE: http://localhost:3000/product like below:
Listing products
TitleDescriptionImage url
NO1product
no1 product input by myself
Show
Edit
Destroy
New product
5.then can do modify the depot application........
Notice:
1-3 mybe failed, it result is Rails2.3.4 hte lastest version.
InstantRails 2.0.2 is more better for most pepole
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1、文件的打开与关闭
``r'' Read-only, starts at beginning of file (default mode).
``r+'' Read-write, starts at beginning of file.
``w'' Write-only, truncates existing file to zero length or creates a new file for writing. ......
一 安装ruby
$sudo apt-get install ruby irb rdoc
二 安装gem
1.到这里下载 ,最好是最新版本，我的1.3.5
解压，切换到当前目录，执行$sudo ruby setup.rb
或者这样：
$ tar xzvf rubygems-1.3.5.tgz （解压）
$ cd rubygems-1.3.5 （切换到此目录）
$ sudo ruby setup ......
SleekEngine
随着计算机硬件的快速发展，10年前因为速度问题而被诟病的Java现在成了计算机流言语言中的老大，但是它却仍被认为复杂笨重，近几年来动态语
言却有后来赶上的趋势，掌握一门动态语言成了程序员需要考虑的事宜。 近期接触了几种流行的动态语言Python, Ruby,
Groovy，它们相比静态语言Java/C++来说，大� ......
#include < ruby.h > //
static int id_sum;
int Values[] = {5, 10 ,15,-1,20,0};
static VALUE wrap_sum(VALUE args)
{
VALUE * values = (VALUE *) args;
VALUE summer = values[0];
VALUE max = values[1];
return rb_funcall(summer,id_sum,1,max);
}
static VALUE ......
ruby on rails安装mysql数据库
1. 下载mysql软件
http://www.mysql.cn/
mysql中文官方网站下载安装软件，选择5.0
2. 安装mysql，设置默认字符集为utf-8
3. 下载mysql for ruby的驱动并安装
http://rubyforge.org/搜索mysql，找到mysql -win
点击下载，进入页面
http://rubyforge.org/frs/?group_id= ......
