Method: ActiveRecord::ConnectionAdapters::Table#foreign_key

Defined in:
activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb

#foreign_key(*args, **options) ⇒ Object

Adds a foreign key to the table using a supplied table name.

t.foreign_key(:authors)
t.foreign_key(:authors, column: :author_id, primary_key: "id")

See connection.add_foreign_key



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# File 'activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb', line 895

def foreign_key(*args, **options)
  raise_on_if_exist_options(options)
  @base.add_foreign_key(name, *args, **options)
end