# Rails/info/properties

**URL:** <https://www.ruby-forum.com/t/rails-info-properties/156592>\
**Category:** Rails\
**Created:** [December 30, 2008, 3:36pm UTC](https://www.ruby-forum.com/t/rails-info-properties/156592 "2008-12-30T15:36:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nike](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/dbc845/32.png) [@nike](https://www.ruby-forum.com/u/nike)\
**Post date:** [December 30, 2008, 3:36pm UTC](https://www.ruby-forum.com/t/rails-info-properties/156592/1 "2008-12-30T15:36:03Z")

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hi i had a doubt while creating a new rails project we are getting the  
basic welcome message as

Welcome aboard  
You’re riding Ruby on Rails!  
About your application’s environment

on clicking the about ur applications we are getting the full  
information about the gem version,rails path etc.I have checked the  
index.html file.its calling prototype js with function

function about() {  
if (Element.empty(‘about-content’)) {  
new Ajax.Updater(‘about-content’, ‘rails/info/properties’, {  
method: ‘get’,  
onFailure: function()  
{Element.classNames(‘about-content’).add(‘failure’)},  
onComplete: function() {new  
Effect.BlindDown(‘about-content’, {duration: 0.25})}  
});  
} else {  
new Effect[Element.visible(‘about-content’) ?  
‘BlindUp’ : ‘BlindDown’](‘about-content’, {duration: 0.25});  
}  
}

how it is retrieving the information from rails/info/properties

Thanks in advance

---

<div class="post-metadata">

**Author:** ![nike](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/dbc845/32.png) [@nike](https://www.ruby-forum.com/u/nike)\
**Post date:** [December 30, 2008, 3:58pm UTC](https://www.ruby-forum.com/t/rails-info-properties/156592/2 "2008-12-30T15:58:02Z")

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On 30 Dec 2008, at 14:36, Nike M. wrote:

> how it is retrieving the information from rails/info/properties

There is a magic controller inside rails itself which is only  
available if the development environment.

Fred