紅寶石的sprintf KeyError異常

Question

當我做的紅寶石以下幾點：

template = "/home/%{:user}/%{:name}/%{:environment}/current" 
values = {user: "firera", name: "firera_test", environment: "staging"} 
template % values 

我得到以下錯誤：

KeyError: key{:user} not found 
     from (irb):3:in `%' 
     from (irb):3 

的關鍵顯然是有，爲什麼它說，它不能找到它？

Answer 1

您已經錯誤地定義了模板。它應該看起來像：

template = "/home/%{user}/%{name}/%{environment}/current" 
values = {user: "firera", name: "firera_test", environment: "staging"} 
template % values 
#=> "/home/firera/firera_test/staging/current"