I just wrote a post about integrating Paperclip with Bootstrap and SimpleForm without the need for f.error elements. In my opinion this approach is way more cleaner that the basic one. You can check it out here: Paperclip, Bootstrap and SimpleForm working together on Rails
Sometimes Passenger gets really naughty and grows rapidly, eating all available memory. I just wrote a post on how to protect our apps and servers from such problems. You can check it out in post titled: Simple Ruby(Rails) Passenger memory consumption limit monitoring
I've found a way to make Redis-store work with simple Regexps and also expire caches with wirdcard string (once that hit Redis Keys method). Check this out!
I just wrote a small how-to about upgrading to Rails 3.2.0 from Rails 3.1.3. It's not so hard as I thought it'd be and new Rails bring us some cool new features. Enjoy :)
I just found an easy way to extend and overwrite bb-ruby bbcode gem translations in Ruby on Rails. This allows you to implement your own rules really easily. Check it out!.