instance method `id?`

Ruby on Rails 4.2.9

Since v3.2.22.5

Available in: v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

id?()

Queries the primary key value.

Source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 31
      def id?
        sync_with_transaction_state
        query_attribute(self.class.primary_key)
      end

Defined in activerecord/lib/active_record/attribute_methods/primary_key.rb line 31 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::AttributeMethods::PrimaryKey

Signature