instance method `foreign_key`

Ruby on Rails 5.2.8.1

Since v5.2.8.1

Available in: 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:

foreign_key(*args)

Adds a foreign key.

t.foreign_key(:authors)

See connection.add_foreign_key

Parameters

args rest

Source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 671
      def foreign_key(*args)
        @base.add_foreign_key(name, *args)
      end

Defined in activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb line 671 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::Table

Signature

Parameters