Auth Components

Authentication is a fairly complex topic, but like most complex topics it can be broken down into smaller parts.

ActiveRecord validations

• What are different types of validations?

• Which ones could be useful?

• Describe 3 use cases.

ActionController filters?

• What is an ActionController filter?

• What are different types of ActionController filters?

• Describe 3 use cases of filters.

has_secure_password

• What is has_secure_password?

• How does it work (in Rails)?