When you use google analytics to track your visitors interactions, you should ensure that it runs on your production site...
When you have a complex recipe setup with multistage deployment you may run into this error: `role_list_from': unknown...
If you turn on stylesheet caching, it might happen that stylesheets from different locations with different relative pathes will be...
Git has a built-in repository viewer for your web browser. a bit similar (but less awesome) than github.
If you want to use Require group $GROUPNAME on your default Apache installation like this: Order allow,deny Allow from...
You have to specify the environment with -e env_name or RAILS_ENV=env_name if you want to run...
After starting the Rails server in a freshly generated Rails 3.1 project you could see an error message such as...
Look here for informations how you can show the MySQL default character set. At first you need the Amazon RDS...
Web fonts are awesome. After being restricted to Arial for two decades there is finally a cross-browser way to...
When using the screen tool you may be unable to start a screen session but instead encounter an error:
To show the MySQL default character set you have to login to the MySQL console and execute SHOW VARIABLES LIKE...
If you specify different ports, you can run multiple local webricks with rails server --port=300X at the same time...
If you want to know the exact hits on your website (or whatever logfile you want) for a specific date...
The most common use case for Ruby's #collect is to call a method on each list element and collect...
The Rails logger will store its content in a buffer and write it into the file system every 1000 lines...
When you require the Ruby debugger to be available from your Rails console (e.g. you want to inspect a method...
Using git rebase can be painful but luckily you can resort to cheating with git reset and committing anew.
In order to open a MySQL shell without the need to enter user and password, you can say the following...
Since version 11.10 Opera provides support for linear gradients using -o-linear-gradient. The syntax is pretty similar to Mozilla...
In case you have sensitive data within your RDS instance, you want to use encrypted connections between your application and...
Recently, we had an interesting lunch-break with the rails 3.1. asset-pipeline in production mode. Daniel Zahn made a...
The colors in Rails log files are helpful when watching them but, since they are ANSI color codes like ^[[4...
The technique described in this card has an important caveat: The result of GROUP_CONCAT is truncated to the maximum...
There is a new card about how to do this with the new AWS Command Line Interface