class method `self.primary_key`

Ruby on Rails 4.1.16

Since v4.0.13 Last seen in v4.2.9

Available in: v4.0.13 v4.1.16 v4.2.9

Compare with:

self.primary_key()

No documentation comment.

Source

# File activerecord/lib/active_record/schema_migration.rb, line 8
      def primary_key
        nil
      end

Defined in activerecord/lib/active_record/schema_migration.rb line 8 · View on GitHub · Improve this page · Find usages on GitHub

Signature