class ForbiddenAttributesError
Ruby on Rails 6.0.6.1
Since v4.0.13Raised when forbidden attributes are used for mass assignment.
class Person < ActiveRecord::Base
end
params = ActionController::Parameters.new(name: 'Bob')
Person.new(params)
# => ActiveModel::ForbiddenAttributesError
params.permit!
Person.new(params)
# => #<Person id: nil, name: "Bob">