Lear how you can travel in time in your tests with Rail's
travel_to helper. We are going to create a view helper and we will follow Test Driven Development.
Deploying Ruby on Rails applications can be scary. Especially when you are a beginner and you want to focus on programming and not on managing virtual servers and setting up deployment process. Fortunately you can use Heroku which makes deploying and managing applications trivial.
When a boolean attribute is set, then it can be only
false. But if it is not set, then it is
NULL in database or
nil in Ruby. It basically means that boolean attributes can have three values. Learn when to disallow
NULL values for boolean attributes and when to keep them.
Learn how to easily toggle value of boolean attributes with