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<?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/>.
/**
* @package mod_assignment
* @subpackage backup-moodle2
* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Define all the restore steps that will be used by the restore_assignment_activity_task
*/
/**
* Structure step to restore one assignment activity
*/
class restore_assignment_activity_structure_step extends restore_activity_structure_step {
protected function define_structure() {
$paths = array();
$userinfo = $this->get_setting_value('userinfo');
$assignment = new restore_path_element('assignment', '/activity/assignment');
$paths[] = $assignment;
// Apply for 'assignment' subplugins optional paths at assignment level
$this->add_subplugin_structure('assignment', $assignment);
if ($userinfo) {
$submission = new restore_path_element('assignment_submission', '/activity/assignment/submissions/submission');
$paths[] = $submission;
// Apply for 'assignment' subplugins optional stuff at submission level
$this->add_subplugin_structure('assignment', $submission);
}
// Return the paths wrapped into standard activity structure
return $this->prepare_activity_structure($paths);
}
protected function process_assignment($data) {
global $DB;
$data = (object)$data;
$oldid = $data->id;
$data->course = $this->get_courseid();
$data->timedue = $this->apply_date_offset($data->timedue);
$data->timeavailable = $this->apply_date_offset($data->timeavailable);
$data->timemodified = $this->apply_date_offset($data->timemodified);
if ($data->grade < 0) { // scale found, get mapping
$data->grade = -($this->get_mappingid('scale', abs($data->grade)));
}
// insert the assignment record
$newitemid = $DB->insert_record('assignment', $data);
// immediately after inserting "activity" record, call this
$this->apply_activity_instance($newitemid);
// Hide unsupported sub-plugins
if (!$this->is_valid_assignment_subplugin($data->assignmenttype)) {
$DB->set_field('course_modules', 'visible', 0, array('id' => $this->get_task()->get_moduleid()));
}
}
protected function process_assignment_submission($data) {
global $DB;
$data = (object)$data;
$oldid = $data->id;
$data->assignment = $this->get_new_parentid('assignment');
$data->timecreated = $this->apply_date_offset($data->timecreated);
$data->timemodified = $this->apply_date_offset($data->timemodified);
$data->timemarked = $this->apply_date_offset($data->timemarked);
$data->userid = $this->get_mappingid('user', $data->userid);
$data->teacher = $this->get_mappingid('user', $data->teacher);
$newitemid = $DB->insert_record('assignment_submissions', $data);
$this->set_mapping('assignment_submission', $oldid, $newitemid, true); // Going to have files
$this->set_mapping(restore_gradingform_plugin::itemid_mapping('submission'), $oldid, $newitemid);
}
/**
* This function will attempt to upgrade the newly restored assignment to an instance of mod_assign if
* mod_assignment is currently disabled and mod_assign is enabled and mod_assign says it can upgrade this assignment.
*
* @return none
*/
private function upgrade_mod_assign() {
global $DB, $CFG;
// The current module must exist.
$pluginmanager = core_plugin_manager::instance();
$plugininfo = $pluginmanager->get_plugin_info('mod_assign');
// Check that the assignment module is installed.
if ($plugininfo && $plugininfo->is_installed_and_upgraded()) {
// Include the required mod assign upgrade code.
require_once($CFG->dirroot . '/mod/assign/upgradelib.php');
require_once($CFG->dirroot . '/mod/assign/locallib.php');
// Get the id and type of this assignment.
$newinstance = $this->task->get_activityid();
$record = $DB->get_record('assignment', array('id'=>$newinstance), 'assignmenttype', MUST_EXIST);
$type = $record->assignmenttype;
$subplugininfo = $pluginmanager->get_plugin_info('assignment_' . $type);
// See if it is possible to upgrade.
if (assign::can_upgrade_assignment($type, $subplugininfo->versiondb)) {
$assignment_upgrader = new assign_upgrade_manager();
$log = '';
$success = $assignment_upgrader->upgrade_assignment($newinstance, $log);
if (!$success) {
throw new restore_step_exception('mod_assign_upgrade_failed', $log);
}
}
}
}
protected function after_execute() {
// Add assignment related files, no need to match by itemname (just internally handled context)
$this->add_related_files('mod_assignment', 'intro', null);
// Add assignment submission files, matching by assignment_submission itemname
$this->add_related_files('mod_assignment', 'submission', 'assignment_submission');
$this->add_related_files('mod_assignment', 'response', 'assignment_submission');
}
/**
* Hook to execute assignment upgrade after restore.
*/
protected function after_restore() {
if ($this->get_task()->get_mode() != backup::MODE_IMPORT) {
// Moodle 2.2 assignment upgrade
$this->upgrade_mod_assign();
}
}
/**
* Determine if a sub-plugin is supported or not
*
* @param string $type
* @return bool
*/
protected function is_valid_assignment_subplugin($type) {
static $subplugins = null;
if (is_null($subplugins)) {
$subplugins = get_plugin_list('assignment');
}
return array_key_exists($type, $subplugins);
}
}