method

foreign_key

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What's this?

foreign_key(*args, **options) public

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}[rdoc-ref:SchemaStatements#add_foreign_key]

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 764
      def foreign_key(*args, **options)
        @base.add_foreign_key(name, *args, **options)
      end

foreign_key

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