I've never worked with web services and rails, and obviously this is something I need to learn. I've chosen to use hpricot because it looks great. Anyway, _why's been nice enough to provide the following example on the hpricot website: #!ruby require 'hpricot' require 'open-uri' # load the RedHanded home page doc = Hpricot(open("ht...
In Ruby, trying to print out the individual elements of a String is giving me trouble. Instead of seeing each character, I'm seeing their ASCII values instead: >> a = "0123" => "0123" >> a[0] => 48 I've looked online but can't find any way to get the original "0" back out of it. I'm a little new to Ruby to I know it has to be somethi...
Since I got a quick response on the last Ruby question I asked, I have another one that's been bothering me. Is there a one line function call that quits the program and displays a message? I know in Perl its as simple as this: die("Message goes here") Essentially I'm just tired of typing this: puts "Message goes here" exit ...
I'm considering writing my own blog but I have had some issues deciding for an appropriate software. From my survey so far I have concluded that the easiest, most feature-rich, free software is Wordpress. However, I would very much like to use several components written in either Python or Ruby, e.g. either Pygments or CodeRay as a sourc...
Can anyone recommend any podcasts on Ruby or that at least cover Ruby from time to time? I have only found rubiverse.com so far. I'm not interested in Rails, though. ...
I would like to create a database backed interactive AJAX webapp which has a custom (specific kind of events, editing) calendaring system. This would involve quite a lot of JavaScript and AJAX, and I thought about Google Web Toolkit for the interface and Ruby on Rails for server side. Is Google Web Toolkit reliable and good? What hidden...
What is the best way to profile a controller action in Ruby on Rails. Currently I am using the brute-force method of throwing in "puts Time.now" calls between what I think will be a bottleneck. But that feels really, really dirty. There has got to be a better way. ...
Here's a perfect example of the problem: Classifier gem breaks Rails. ** Original question: ** One thing that concerns me as a security professional is that Ruby doesn't have a parallel of Java's package-privacy. That is, this isn't valid Ruby: public module Foo public module Bar # factory method for new Bar implementations ...
What are some good online tutorials/quick starts/screencasts to get up to speed on Ruby development? I recently read Brad Wilson's Ruby article in the Sep/Oct 2008 issue of CoDe magazine and would like to continue down the Ruby/IronRuby path. (My background is mainly C# and .NET.) ...
I'm using Ruby on Rails for an internal site. Different users of the site have access to a wide variety of data and highly disparate perspectives of the data. Within those different classes of users, there needs to be levels of access. Within the levels of access I need to be able to add features from other classes of users. In the rele...
Suppose you have an ActiveRecord::Observer in one of your Ruby on Rails applications - how do you test this observer with rSpec? ...
Is it possible to access the database backend of a sharepoint server? My company uses Sharepoint to store data and pictures of various assets. Ideally I would be able to access the data and display it in my application to allow users both methods of access. Before I go talk to the IT department I would like to find out if this is even p...
In Ruby on Rails, I'm attempting to update the innerHTML of a div tag using the form_remote_tag helper. This update happens whenever an associated select tag receives an onchange event. The problem is, <select onchange="this.form.submit();">; doesn't work. Nor does document.forms[0].submit(). The only way to get the onsubmit code gen...
I'm trying to grasp the concept of continuations and I found several small teaching examples like this one from the Wikipedia article: (define the-continuation #f) (define (test) (let ((i 0)) ; call/cc calls its first function argument, passing ; a continuation variable representing this point in ; the program as the arg...
SHA Hash functions ...
Additionally, how can I format it as a string padded with zeros? ...
I'm looking to run Redmine, a Ruby on Rails app, on a vps windows box. The only thing I can really think of is running a virtual linux machine and hosting it from there. If that is my only option, am I going to run into problems running a virtual machine inside of a virtual machine? Also, this will be an internal app, so performance i...
Where is the best tutorial for getting RoR working on a windows box with Mongrel? I'm a complete novice at server management, so the more detailed the better! ...
Is there a Ruby equivalent for Python's "is"? It tests whether two objects are identical (i.e. have the same memory location). ...
I have a popup window containing a form which gathers data for a report. When I click submit in that window, I want it to close the popup, and open the report in the original window that called the popup. I think I can open the report in the correct window by using { :target => } in the form_tag, but I don't know how to determine ...