Stefan Wille
When you create an image in Rmagick and save it, chances are high that your image will be way too big. The reason is that, by default, Rmagick creates uncompressed images. Try to run ‘optipng
One way to improve on this is to set the compression level in Rmagick’s write method. Here is some clunky code to do this:
Posted in Ruby on Rails.
– November 15, 2011
Capybara is a great integration testing framework that easily replaces Webrat. Plus, it works with Rails 3, which Webrat seems not to do.
If you need to print the current page’s content, for example to debug your test, you can do so with:
Posted in Ruby on Rails.
– December 2, 2010
You probably got this error message in Ruby on Rails:
/Users/stefan/.../controllers/categories_controller.rb:37: invalid multibyte char (US-ASCII)
The problem is that Ruby 1.9 expects you to use ASCII characters in your source code, and you have used a non ASCII character.
The solution is to tell Ruby that your source file is UTF-8 by including this directive as the first line of your file:
Posted in Ruby on Rails.
– August 31, 2010
Atlassian Crowd (http://www.atlassian.com/software/crowd/) offers a simple solution for single sign on. It comes with an authentication server, a web based administration console and Java client libraries. Other Atlassian products such as Jira, Confluence and Bamboo integrate with Crowd.
With the crowd_rails plugin, Ruby on Rails can also benefit from single sign on with Atlassian Crowd 2.0.
Posted in Ruby on Rails.
– July 27, 2010
The new version 0.5.10 of the crowd-stefanwille fixes a bug in handling of validation factors.
Correct handling of validation factors is necessary for interoperable single sign on with other Atlassian products.
Posted in Other.
– July 26, 2010
I took the Ruby client gem for Atlassian Crowd 1.6 from http://liff.github.com/crowd and updated it for Crowd 2. Also I added a new demo script that makes it easier to get started. Tested with Crowd 2.0.5.
Get it via
gem install crowd-stefanwille
Get more info from http://github.com/stefanwille/crowd.
Posted in Other.
– July 19, 2010
I use Bundler’s command bundle install with Capistrano and it used to takes many seconds to complete. The reason was that Bundler fetched all required gems unless they were already installed and then checked for all dependent gems if there is are newer versions available and installed these. It’s the last step that took so long.
Posted in Ruby on Rails.
– July 12, 2010
Probably every agile book recommends to split large user stories (epics) into smaller ones. But why? The reason is usually ‘because they are more manageable’, but I didn’t really understand what that was supposed to mean. Until recently, when we worked on two epics. And I had an insight that I am eager to share.
Posted in Agile.
– April 6, 2010
I found that, once you have a productive software, your business people ask for numbers, statistics and reports from your database, on a weekly or monthly basis. And this keeps interrupting your workflow. And it also keeps you from coding. So what to do?
Posted in Agile.
– January 13, 2010
I am searching for a new colleague: A sharp, experienced Ruby on Rails developer for our internet startup Balao in Hamburg. See this.
Our company offers an internet service called GratisPay that monetarizes virtual goods in online games.
Update: Finished searching
Posted in Ruby on Rails.
– October 28, 2009
