2008-04-06

ruby on rails demo

关键字: ruby on rails demo
1 install ruby

2 install rails  input:

        gem install -v=1.2.6 rails --include-dependencies

3 ruby -v

4 gem -version

5 rails demo

6 say_controller.rb 
class SayController < ApplicationController
	def hello
		@time = Time.now
	end
	def goodbye
	end
end


7 demo\app\views\say\hello.rhtml 

<html>
	<head>
		<title>Hello, Rails!</title>
	</head>
	<body>
		<h1>Hello from Rails!</h1>
		<ul>
			<li>Addition: <%= 1 + 2 %></li>
			<li>Concatenation: <%= "cow" + "boy" %></li>
			<li>Time is one hour: <%= 1.hour.from_now %></li>
		</ul>
		
		<br />
		<br />
		<% 3.times do %>
			HO!<br />
		<% end %>
		Merry Christmas!
		
		<br />
		<br />
		<% 3.downto(1) do |count| %>
		<%= count %>...<br />
		<% end %>
		Lift off!
		
		<br />
		<br />
		Email: <%= h("xiejiaohui <xiejiaohui@hotmail.com>") %>
		
		<br />
		<br />
		<p>
			It is now from page: <%= Time.now %>
		</p>
		
		<br />
		<br />
		<p>
			It is now from controller:  <%= @time %>
		</p>
		
		<p>
			Say <a href="/say/goodbye">Goodbye</a>
		</p>
		<p>
			Time to say
			<%= link_to "GoodBye!", :action => "goodbye" %>
		</p>
		
	</body>
</html>


8 demo\app\views\say\goodbye.rhtml 
<html>
	<head>
		<title>See You Later!</title>
	</head>
	<body>
		<h1>Goodbye!</h1>
		<p>
			It was nice having you here.
		</p>
		<p>
			Say <a href="/say/hello">Hello</a>
		</p>
		<p>
			Say <%= link_to "Hello", :action => "hello" %> again.
		</p>
	<body>
</html>
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