This year’s Ruby en Rails conference in Amsterdam was a great success. A lot of great speakers came together with an amazing audience. Besides the two Rails talks from Jeremy Kemper and Yehuda Katz there were a lot of really interesting talks. Jonathan Weiss’ Talk about Rails Security, for instance, was very interesting and should [...]
In a recent project I experienced a RTeX::Document::GenerationError only when using Phusion Passenger. After a closer look I’ve seen that the PDF has been successfully created but the redirect to the following request failed. Everything works fine with mongrel. However, the error messaged looked like the following: RTeX::Document::GenerationError in BillsController#index</h3> <pre>Could not find result PDF [...]
Email2sms has been developed by www.avarteq.de. Email2sms is a free and pure Ruby E-Mail to sms gateway including an extensible filterchain to filter and manipulate incoming emails before sending them as text messages. Requirements In order to run Email2sms you will need the following. IMAP Mailbox DeveloperGarden Account with credits. Have a look at developergarden.com [...]
If you need to write an application using TCP sockets under Ruby you should have a look at the following docs: Ruby Core RDoc: http://ruby-doc.org/core/classes/TCPSocket.html Programming Ruby, The Pragmatic Programmer’s Guide, Network and Web Libraries
In order to create PDFs with unicode (utf8) support within a Ruby on Rails app on Mac OS X, you need a fully working Latex installation including the ucs.sty extension. The best way to install Latex on a Mac OS X is using MacPorts. The following command will install Tex, Latex and a whole bunch [...]
Consider you have a module defining a public, a protected and a private method. What happens to this visibility declaration after mixing the module into a class? Does Ruby ignore visibility information or does Ruby take over the visiblity settings? The following example demonstrates that Ruby preserves the module’s visibility settings and keeps private methods [...]
Ever wanted a colored irb or script/console? Well, you should try wirble. It gives you a number of enhancements for Irb. Some of the features are: Tab completion Colorized results … Installation is easy as pie: sudo gem install wirble vi .irbrc require ‘rubygems’ require ‘wirble’ # start wirble (with color) Wirble.init Wirble.colorize
If you have ever asked yourself what is behind arguments like *this then here is the trivial answer: A small ruby script like this: #!/usr/bin/env ruby def my_method(a,b,*c) puts “a: ” + a puts “b: ” + b puts “c:” c.each { |ce| puts ce } end my_method(“a1″, “b2″, “c3″, “c4″, “c5″, “c6″) Produces the [...]
Introduced in Rails 2.3 nested attributes help to shorten code if you want to edit multiple nested models within a single form. Here the corresponding article from the rails weblog: http://weblog.rubyonrails.org/2009/1/26/nested-model-forms There is also a very good tutorial on nested forms from Ryan Daigle: http://ryandaigle.com/articles/2009/2/1/what-s-new-in-edge-rails-nested-attributes Right now it seems as if there is no clean [...]
Sometimes you don’t want to execute your while test suite but only a single test of it. Actually this is easy as pie. Just append –name and the name of the test method. ruby your_test.rb –name test_new_call_a_doesn_pick_up That’s it.