Module: ActiveRecord::AttributeMethods::PrimaryKey

Extended by:

ActiveSupport::Concern

Defined in:

activerecord/lib/active_record/attribute_methods/primary_key.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary (collapse)

• - (Object) to_key

  Returns this record's primary key value wrapped in an Array or nil if the record is not persisted? or has just been destroyed.

Methods included from ActiveSupport::Concern

append_features, extended, included

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# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 8

def to_key
  key = send(self.class.primary_key)
  [key] if key
end