Ruby on Rails ActiveRecord Validations Validating length of an attribute
Example
class Person < ApplicationRecord
validates :name, length: { minimum: 2 }
validates :bio, length: { maximum: 500 }
validates :password, length: { in: 6..20 }
validates :registration_number, length: { is: 6 }
end
The possible length constraint options are:
:minimum- The attribute cannot have less than the specified length.:maximum- The attribute cannot have more than the specified length.:in(or:within) - The attribute length must be included in a given interval. The value for this option must be a range.:is- The attribute length must be equal to the given value.
