Arty questions

• How to use your own mysql database server with heroku?
• before_filter: is it possible to specify controller for action?
• Worldwide location (country, region, city) select plugin for Rails, jQuery or Google Maps API?
• How to do bundle install using specific rvm gemset from git hook post-receive?
• MongoDB 1.6.5: how to rename field in collection
• Saving and Restoring caret position for contentEditable div
• Is there a workaround to open URLs containing underscores in Ruby?
• How to pass variables to render_to_string?
• How to replace only part of the match with python re.sub

Arty answers