What are some popular Ruby validation gems?

What are some popular Ruby validation gems?

Some popular Ruby validation gems include ActiveModel, ValidatesEmailFormat, and ValidatesTimeliness. Do you need help with a specific one?

Can you explain how to use ActiveModel for validations?

Sure! ActiveModel provides a way to create custom validations. You can include it in your class and define validation methods. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

class User
  include ActiveModel::Model
  attr_accessor :email

  validates :email, presence: true, format: { with: URI::MailTo::EMAIL_REGEXP }
end

This validates that the email is present and in the correct format.

Thanks! Are there any other gems for more complex validations?

Yes, gems like 'dry-validation' and 'reform' offer more complex validation capabilities. Would you like to know more about them?