histocrat questions

histocrat answers

• mysqldump merge instead of overwrite
• Using Rails and Rspec, how do you test that the database is not touched by a method
• What is the most Ruby-like way of generating every unique combination of 3 positive integers that add up to 100
• How to programmatically remove "singleton information" on an instance to make it marshal?
• Rails: Faster way to retrieve N random records
• inheritance changes class of method