Working with Ruby

**Twey** · 10-31-2007, 12:00 AM

A framework is an "blank slate" application to which you provide code to do as you like. In this case, Rails is an application that interfaces with your web server and runs your scripts when appropriate (e.g. when the user's request matches an URL you'd decided should point to a certain function; I'm not entirely sure how Ruby does it, but it'll be something like that). It also provides various classes and functions to help you write HTTP-based applications more easily.

Without a Web framework such as Rails, you'd probably be using CGI. CGI provides data to your script in a very rough form, and takes output in an equally low-level manner: about half your application would likely involve handling all this low-level stuff and translating it into a higher-level form.

**lord_havoc** · 10-31-2007, 12:03 AM

So Rails makes it easier for a web server to understand the language? Does this change any coding? Do I use different syntax, methods, things like that or is is still the same?

**Twey** · 10-31-2007, 12:22 AM

No, it doesn't change the language itself. It's sort of like working with a library.

**lord_havoc** · 10-31-2007, 12:36 AM

Oh thats cool! Where can you find all the things it adds?

**Twey** · 10-31-2007, 12:50 AM

Start with: http://wiki.rubyonrails.org/rails/pages/Tutorial

**lord_havoc** · 10-31-2007, 01:19 AM

Okay, I got everything up and running and I'm following a tutorial on making a photo gallery. There is an .rhtml that calls for the stylesheet in, what I beleive to be , AJAX. The codeing for the page is

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>Flickr</title>
	<%= javascript_include_tag :defaults %>
	<%= stylesheet_link_tag 'flickr'  %>
	</head>
	
	<body>
	<%= yield %>
	</body>
</html>

For some reason it doesn't see the style sheet and therefore doesn't display styles I have made. As far as I can see, I typed exactly what he did but I must be missing something.

**Twey** · 10-31-2007, 07:30 AM

What's the rest of the code?

**lord_havoc** · 10-31-2007, 08:39 PM

That file was application.rhtml

index.rhtml is:

Code:

<%= form_remote_tag :url => {:action => 'search'}, :update => 'photos' %>

	<fieldset>
	<label for="tags">Tags</label>
	<%= text_field_tag 'tags' %>
	<%= submit_tag 'Find'%>
	</fieldset>
	
	<div id="photos"></div>
	
<%= end_form_tag %>

And flickr.css is

Code:

body{
	background-color: #888888;
	font-family: "Trebuchet MS";
	font-size: .8em;
	margin: 25px;
}

form{
	margin: 0px;
	margin-bottom: 10px;
	background-color: #eeeeee;
	border: 5px solid #333333;
	padding: 25px;
}

fieldset{
	border: none;
}

**Twey** · 11-01-2007, 09:13 AM

It's called 'flickr.css' isn't it? stylesheet_link_tag won't add the extension on for you.

**lord_havoc** · 11-01-2007, 09:18 PM

Well I didn't think so, but I'm new to AJAX. And the guy in the video didn't use the extension. I thought maybe that piece of code new to look for css files.

Either way, it still doesn't work.

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