Ruby on Rails Validation Helpers
Part of the Ruby on Rails For Dummies Cheat Sheet
When you create a Web site or Web application with Ruby on Rails, you need to make sure that you input data in a form that Rails recognizes and can use. The following table contains Rails validation helpers:
| validates_acceptance_of | validates_inclusion_of |
| validates_associated | validates_length_of |
| validates_confirmation_of | validates_numericality_of |
| validates_each | validates_presence_of |
| validates_exclusion_of | validates_size_of |
| validates_format_of | validates_uniqueness_of |
