class StrictValidationFailed
Ruby on Rails 6.0.6.1
Since v3.2.22.5Raised when a validation cannot be corrected by end users and are considered exceptional.
class Person
include ActiveModel::Validations
attr_accessor :name
validates_presence_of :name, strict: true
end
person = Person.new
person.name = nil
person.valid?
# => ActiveModel::StrictValidationFailed: Name can't be blank