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class ActiveRecord::UnknownAttributeError

Active Model UnknownAttributeError

Raised when unknown attributes are supplied via mass assignment.

class Person
  include ActiveModel::AttributeAssignment
  include ActiveModel::Validations

person =
person.assign_attributes(name: 'Gorby')
# => ActiveModel::UnknownAttributeError: unknown attribute 'name' for Person.

Inherits From


[R] attribute
[R] record

Public class methods

Source code GitHub
# File activemodel/lib/active_model/errors.rb, line 541
def initialize(record, attribute)
  @record = record
  @attribute = attribute
  super("unknown attribute '#{attribute}' for #{@record.class}.")

Definition files