cakephp / phinx

     * @param \Phinx\Db\Action\Action[] $actions The actions to parse

     * @return void

     */

    protected function gatherTableMoves($actions)

    {

        collection($actions)

            ->filter(function ($action) {

                return $action instanceof DropTable

                    || $action instanceof RenameTable;

            })

            ->each(function ($action) {

                $table = $action->getTable();

                $name = $table->getName();

                if (!isset($this->tableMoves[$name])) {

                    $this->tableMoves[$name] = new AlterTable($table);

                }

                $this->tableMoves[$name]->addAction($action);

            });

    }

    /**

     * Collects all index creation and drops from the given intent

     * @param \Phinx\Db\Action\Action[] $actions The actions to parse

     * @return void

     */

    protected function gatherConstraints($actions)

    {

        collection($actions)

            ->filter(function ($action) {

                return $action instanceof AddForeignKey

                    || $action instanceof DropForeignKey;

            })

            ->each(function ($action) {

                $table = $action->getTable();

                $name = $table->getName();

                if (!isset($this->constraints[$name])) {

                    $this->constraints[$name] = new AlterTable($table);

                }

                $this->constraints[$name]->addAction($action);

            });

    }

}