restore_lifecycle_workflow.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Class to restore a workflow.
 * @package    tool_lifecycle
 * @copyright  2017 Tobias Reischmann WWU
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
namespace tool_lifecycle\local\backup;

use tool_lifecycle\local\entity\step_subplugin;
use tool_lifecycle\local\entity\trigger_subplugin;
use tool_lifecycle\local\entity\workflow;
use tool_lifecycle\local\manager\workflow_manager;
use tool_lifecycle\local\manager\step_manager;
use tool_lifecycle\local\manager\trigger_manager;
use tool_lifecycle\local\manager\settings_manager;
use tool_lifecycle\settings_type;

defined('MOODLE_INTERNAL') || die();

/**
 * Class to restore a workflow.
 * @package    tool_lifecycle
 * @copyright  2017 Tobias Reischmann WWU
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class restore_lifecycle_workflow {

    /** @var $workflow workflow */
    private $workflow;
    /** @var $steps step_subplugin[] */
    private $steps = [];
    /** @var $trigger trigger_subplugin[] */
    private $trigger = [];
    /** @var $settings array */
    private $settings = [];
    /** @var $errors string[] errors that occurred during restore.*/
    private $errors = [];
    /** @var $writer \XMLWriter */
    private $reader;

    /**
     * Restore_lifecycle_workflow constructor.
     * @param string $xmldata XML-Data the workflow should be restored from.
     */
    public function __construct($xmldata) {
        $this->reader = new \XMLReader();
        $this->reader->XML($xmldata);

    }

    /**
     * Executes the restore process. It loads the workflow with all steps and triggers from the xml data.
     * If all data is valid, it restores the workflow with all subplugins and settings.
     * Otherwise an array with error strings is returned.