Apache HTTP server benchmarking tool (ab) is a nice tool to test performance on sites delivered by HTTP. If the...
I was unsatisfied with the existing memory status applets for the Xfce panel, so I wrote a little shell script...
When searching for text in a MySQL table, you have two choices: The LIKE operator FULLTEXT indexes (which currently only...
Our old solution for cronjobs, the "craken" plugin, is no longer maintained and does not work on Rails 3.2+.
I am talking about development speed. When your application starts growing and you start adding gems, it starts to take...
Generally, Selenium tests use the browser to interact with the page. If it's unavailable, a timeout error is...
Turbolinks makes following links in your web application faster. Instead of letting the browser recompile the JavaScript and CSS between...
If you get this warning on your local machine one of these steps might help: Rebuilt the gem with the...
You're using exception_notification and want to send exception mails within a model. Here's how. The ExceptionNotifier class...
The ActionMailer in Rails 2 depends on a buggy version of TMail, which sometimes inserts a blank line into the...
Given you store files on Amazon S3 and you need to stream those files out to people while you don...
Note: Modern Rails has two build pipelines, the asset pipeline (or "Sprockets") and Webpacker. The principles below apply for both...
When you get an error like this: Invalid gemspec in [/opt/www/foo-project.makandra.de/shared/bundle/ruby/1.8/specifications/carrierwave-0.6.2.gemspec]: Illformed requirement ["# 1.1.4"] ... the machine's Rubygems needs to...
We frequently use the handy Paperclip Gem to manage file attachments. If you need to move the files from local...
Interesting interview with DHH, where he talks about how they made the new Basecamp feel very fast without using a...
pjax loads HTML from your server into the current page without a full reload. It's ajax with real permalinks...
Jedes nicht rein private Profil auf Social Media Portalen muss ein Impressum haben, das heißt insbesondere Unternehmen und Freiberufler (§ 5...
In Selenium features the server and client are running in separate processes. Therefore, when mocking time with a tool like...
When you develop a gem and you have a Gemfile in your project directory, you might be surprised that your...
When deploying, Capistrano puts a REVISION file into your application's release directory. It contains the hash of the commit...
For my Gem Session project Holly I ran the Ironman of drag'n'drop implementations: Dragging in nested lists
I've got often this error on just one server: Err http://de.archive.ubuntu.com precise/universe amd64 Packages 404 Not Found [IP...
Rack has a limit for how many form parameters it will parse. This limit is 65536 by default.
Ruby 1.9.2 is very slow when loading files, especially starting Rails servers or running specs takes forever.