Ruby/Rails/Form Select
Материал из Wiki.crossplatform.ru
Reading Data from Select Controls
File: public\input.html
<html>
<head>
<title>Using Select Controls</title>
</head>
<body>
<h1>Working With Select Controls</h1>
This Ruby on Rails application lets you read data from select controls.
<br>
<form action = "/hello/there">
Select your new car"s color.
<br>
<select name="select1" >
<option value="red">red
<option value="green">green
<option value="blue">blue
</select>
<br>
<br>
<input type="submit"/>
</form>
</body>
</html>
File: app\controllers\hello_controller.rb
class HelloController < ApplicationController
def there
@data = params[:select1]
end
end
File: app\views\hello\there.rhtml
<html>
<head>
<title>Reading data from select controls</title>
</head>
<body>
<h1>Reading data from select controls</h1>
This Ruby on Rails application reads data from select controls.
<br>
<br>
You selected <%= @data %>
<br>
<br>
</body>
</html>
Start the WEBrick server: ruby script/server
Navigate to http://localhost:3000/input.html
<A href="http://www.crossplatform.ru/Code/RubyDownload/readSelect.zip">readSelect.zip( 89 k)</a>
Read Multiple Selections from a Select Control
File: public\input.html
<html>
<head>
<title>Using Select Controls</title>
</head>
<body>
<h1>Working With Select Controls</h1>
This Ruby on Rails application lets you read data from select controls.
<br>
<form action = "/hello/there">
Select your new car"s color.
<br>
<select name="select1[]" multiple size="3">
<option value="red">red
<option value="green">green
<option value="blue">blue
</select>
<br>
<br>
<input type="submit"/>
</form>
</body>
</html>
File: app\controllers\hello_controller.rb
class HelloController < ApplicationController
def there
@data = params[:select1]
end
end
File: app\views\hello\there.rhtml
<html>
<head>
<title>Reading data from select controls</title>
</head>
<body>
<h1>Reading data from select controls</h1>
This Ruby on Rails application reads data from select controls.
<br>
<br>
You selected <% for data in @data %>
<%= data %>
<% end %>
<br>
<br>
</body>
</html>
Start the WEBrick server: ruby script/server
Navigate to http://localhost:3000/input.html.
<A href="http://www.crossplatform.ru/Code/RubyDownload/readMultipleSelections.zip">readMultipleSelections.zip( 91 k)</a>
