start RubyOnRails

Make the environment of RubyOnRails on windows

* download ruby on ruby-lang.org。
* setup rails:
cmd-->gem install rails --remote
* setup mysql (Recommand 4.1)
* setup mysql control center (Create DataBase easily)
* create a web site
cmd -->ruby websitename
* start the web server(WEBrick) using (on /../websitename/ directionary): ruby scrip\server,and visit http://127.0.0.1:3000

Create a simple application
* Create a database named MyFriends,and create a table named Friends with colums:id,name,age
* Config the webapplication database config file :/websitename/config/database.yml
development:
  adapter: mysql
  database: myfriends
  username: root
  password: xxxxxx
  host: localhost
* Restart the webserver using "ruby script\server".
* Note:after erery character ":" have a "space" character.
* Using command "ruby script\generate model Friends" to geneate the model named friends.rb on "/websitename/app/model/".
* Using command "ruby script\generate controller Friends list view new edit " to generate the controller named friends_controller.rb on "/websitename/app/controllers" and other view template pages on "/websitename/app/views/friends/" such as "list.rhtml"、"edit.rhtml" and so on.

edit friends_controller.rb file:

class FriendsController < ApplicationController

  def list
      @friends_all=Friends.find_all
  end

  def view
      @friend=Friends.find(params[:id])
  end

  def new
  end

  def edit
      @friend=Friends.find(params[:id])
  end
  
  def create
      @friend=Friends.new
      @friend.name=params[:friend_name]
      @friend.age=params[:friend_age]
      if @friend.save
          redirect_to '/friends/list'
      else
          redirect_to '/friends/new'
      end
  end
  
  def update
      @friend=Friends.find(params[:id])
      if @friend.update_attribute("name",params[:friend_name]) and @friend.update_attribute("age",params[:friend_age])
          redirect_to '/friends/list'
      else
          redirect_to '/friends/list'
      end
  end
end


and other files in "/websitename/app/views/friends" edit like this:
list.rhtml
<html>
    <body>
        <h1>Friends List </h1>
        <p>
        <% @friends_all.each do |friend| %>
        Name:<%=link_to friend.name,:action=>"view",:id=>friend.id %>
        Age:<%=friend.age %>
        <%=link_to "Edit",:action=>"edit",:id=>friend.id %>
        <br/>
        <% end %>
        </p>
    </body>
</html>
view.rhtml
<h1>Friends#list</h1>
<p>Find me in app/views/friends/list.rhtml</p>
Name:<%=@friend.name %><br/>
Age:<%=@friend.age %>
new.rhtml
<h1>Friends#new</h1>
<p>Find me in app/views/friends/new.rhtml</p>
<form action="/friends/create" method="post">
Name:<input id="friend_name" name="friend_name" value=""><br />
Age:<input id="friend_age" name="friend_age" value=""></br />
<input name="commit" type="submit" value="Create" />
</form>
edit.rhtml
<h1>Friends#edit</h1>
<p>Find me in app/views/friends/edit.rhtml</p>
<form action="/friends/update" method="post">
id:<input type="hidden" id="id" name="id" value="<%=@friend.id %>"></br>
Name:<input name="friend_name" value="<%=@friend.name %>"><br />
Age:<input name="friend_age" value="<%=@friend.age%>"><br/>
<input type="submit" value="update" %>
</form>

over.
now you already lenarned how to operate the database using RubyOnRails,next ,just read more books.
some links:
http://www.ruby-lang.org 
http://www.ruby-doc.org 
http://www.rubyonrails.org
http://www.rubycentral.com/book/index.html 
http://rubyforge.org/ 
http://www.webrick.org 
http://www.yaml.org 
http://wiki.rubyonrails.org/rails/pages/Tutorial
http://www.bizwiki.cn/teamblog/?p=24
posted @ 2006-06-18 03:32  cacard  阅读(838)  评论(0)  编辑  收藏  举报