createTable('{{%auth_assignment}}', [ 'item_name' => $this->string(), 'user_id' => $this->integer(), 'created_at' => $this->integer(), ]); } public function down() { $this->dropTable('{{%auth_assignment}}'); } /* // Use safeUp/safeDown to run migration code within a transaction public function safeUp() { } public function safeDown() { } */ }