我如何通过表单嵌入 ruby.rb 文件，以执行 ruby.rb 并且结果在视图中可见 [英] How do I embed ruby.rb file via form in a way that ruby.rb would be executed and results visible in view
问题描述
假设我想通过表单将此代码嵌入到单独的 ruby.rb 文件中:
let's say I want to embed this code via form in a separate ruby.rb file:
print "Hello, Please enter a value:"
var = gets.to_i
if var == 10
puts "Correct"
else
puts "Your answer is incorrect"
end
在视图中的提交按钮之后，用户将看到结果是正确还是不正确.
最好的方式是通过表单嵌入文件 ruby.rb，它更方便，但不是必需的.
你能想出如何让它发挥作用吗?如果能得到你的一些奖励，我会很高兴.
After the submit button in view user will see either results are correct or incorrect.
In a best way file ruby.rb would be embedded via form, it's more convinient, but not essential.
Could you think of how to make it work? I would be very nice to have some incentives from you.
谢谢
推荐答案
一种将基本表单设置为网站的简单方法是 辛纳特拉.以下是使用 Sinatra 的单个文件中的网络应用.
A simple way to put a basic form up as a web site is Sinatra. The following is a web app in a single file, using Sinatra.
#!/usr/bin/env ruby
require 'sinatra'
get '/' do
erb :guess
end
post '/' do
@guess = params[:guess].to_i
if @guess == 10
@message = "Correct!"
else
@message = "Try again..."
end
erb :guess
end
__END__
@@ layout
<html>
<body>
<%= yield %>
</body>
</html>
@@ guess
<form action="" method="post">
<p>Guess a number: <input type="text" name="guess"/></p>
<p><%= @message %></p>
</form>
安装 sinatra gem 并运行该文件.您会看到类似
Install the sinatra gem and run the file. You'll see a message like
== Sinatra/1.3.3 has taken the stage on 4567
然后将您的浏览器指向 http://localhost:4567/，您的应用就在线了.
Then point your browser at http://localhost:4567/ and your app is online.
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