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restore_course_task.class.php
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restore_course_task.class.php
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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/>.
/**
* Defines restore_course_task class
*
* @package core_backup
* @subpackage moodle2
* @category backup
* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* course task that provides all the properties and common steps to be performed
* when one course is being restored
*
* TODO: Finish phpdocs
*/
class restore_course_task extends restore_task {
protected $info; // info related to course gathered from backup file
protected $contextid; // course context id
/**
* Constructor - instantiates one object of this class
*/
public function __construct($name, $info, $plan = null) {
$this->info = $info;
parent::__construct($name, $plan);
}
/**
* Course tasks have their own directory to read files
*/
public function get_taskbasepath() {
return $this->get_basepath() . '/course';
}
public function get_contextid() {
return $this->contextid;
}
/**
* Create all the steps that will be part of this task
*/
public function build() {
// Define the task contextid (the course one)
$this->contextid = context_course::instance($this->get_courseid())->id;
// Executed conditionally if restoring to new course or if overwrite_conf setting is enabled
if ($this->get_target() == backup::TARGET_NEW_COURSE || $this->get_setting_value('overwrite_conf') == true) {
$this->add_step(new restore_course_structure_step('course_info', 'course.xml'));
}
$this->add_step(new restore_course_legacy_files_step('legacy_files'));
// Deal with enrolment methods and user enrolments.
if ($this->plan->get_mode() == backup::MODE_IMPORT) {
// No need to do anything with enrolments.
} else if (!$this->get_setting_value('users') or $this->plan->get_mode() == backup::MODE_HUB) {
if ($this->get_target() == backup::TARGET_CURRENT_ADDING or $this->get_target() == backup::TARGET_EXISTING_ADDING) {
// Keep current enrolments unchanged.
} else {
// If no instances yet add default enrol methods the same way as when creating new course in UI.
$this->add_step(new restore_default_enrolments_step('default_enrolments'));
}
} else {
// Restore course enrolment data.
$this->add_step(new restore_enrolments_structure_step('course_enrolments', 'enrolments.xml'));
}
// Populate groups, this must be done after enrolments because only enrolled users may be in groups.
$this->add_step(new restore_groups_members_structure_step('create_groups_members', '../groups.xml'));
// Restore course role assignments and overrides (internally will observe the role_assignments setting),
// this must be done after all users are enrolled.
$this->add_step(new restore_ras_and_caps_structure_step('course_ras_and_caps', 'roles.xml'));
// Restore course filters (conditionally)
if ($this->get_setting_value('filters')) {
$this->add_step(new restore_filters_structure_step('course_filters', 'filters.xml'));
}
// Restore course comments (conditionally)
if ($this->get_setting_value('comments')) {
$this->add_step(new restore_comments_structure_step('course_comments', 'comments.xml'));
}
// Calendar events (conditionally)
if ($this->get_setting_value('calendarevents')) {
$this->add_step(new restore_calendarevents_structure_step('course_calendar', 'calendar.xml'));
}
// Course competencies.
$this->add_step(new restore_course_competencies_structure_step('course_competencies', 'competencies.xml'));
// At the end, mark it as built
$this->built = true;
}
/**
* Define the contents in the course that must be
* processed by the link decoder
*/
static public function define_decode_contents() {
$contents = array();
$contents[] = new restore_decode_content('course', 'summary');
$contents[] = new restore_decode_content('event', 'description');
return $contents;
}
/**
* Define the decoding rules for links belonging
* to the course to be executed by the link decoder
*/
static public function define_decode_rules() {
$rules = array();
// Link to the course main page (it also covers "&topic=xx" and "&week=xx"
// because they don't become transformed (section number) in backup/restore.
$rules[] = new restore_decode_rule('COURSEVIEWBYID', '/course/view.php?id=$1', 'course');
// A few other key course links.
$rules[] = new restore_decode_rule('GRADEINDEXBYID', '/grade/index.php?id=$1', 'course');
$rules[] = new restore_decode_rule('GRADEREPORTINDEXBYID', '/grade/report/index.php?id=$1', 'course');
$rules[] = new restore_decode_rule('BADGESVIEWBYID', '/badges/view.php?type=2&id=$1', 'course');
$rules[] = new restore_decode_rule('USERINDEXVIEWBYID', '/user/index.php?id=$1', 'course');
return $rules;
}
// Protected API starts here
/**
* Define the common setting that any restore course will have
*/
protected function define_settings() {
//$name, $vtype, $value = null, $visibility = self::VISIBLE, $status = self::NOT_LOCKED
$fullname = new restore_course_generic_text_setting('course_fullname', base_setting::IS_TEXT, $this->get_info()->original_course_fullname);
$fullname->get_ui()->set_label(get_string('setting_course_fullname', 'backup'));
$this->add_setting($fullname);
$shortname = new restore_course_generic_text_setting('course_shortname', base_setting::IS_TEXT, $this->get_info()->original_course_shortname);
$shortname->get_ui()->set_label(get_string('setting_course_shortname', 'backup'));
$this->add_setting($shortname);
$startdate = new restore_course_generic_text_setting('course_startdate', base_setting::IS_INTEGER, $this->get_info()->original_course_startdate);
$startdate->set_ui(new backup_setting_ui_dateselector($startdate, get_string('setting_course_startdate', 'backup')));
$this->add_setting($startdate);
// Old versions may not have this data.
if (isset($this->get_info()->original_course_enddate)) {
$courseenddate = $this->get_info()->original_course_enddate;
} else {
$courseenddate = 0;
}
$enddate = new restore_course_generic_text_setting('course_enddate',
base_setting::IS_INTEGER, $courseenddate);
$enddate->set_ui(new backup_setting_ui_dateselector($enddate, get_string('setting_course_enddate', 'backup')));
$this->add_setting($enddate);
$keep_enrols = new restore_course_generic_setting('keep_roles_and_enrolments', base_setting::IS_BOOLEAN, false);
$keep_enrols->set_ui(new backup_setting_ui_select($keep_enrols, $keep_enrols->get_name(), array(1=>get_string('yes'), 0=>get_string('no'))));
$keep_enrols->get_ui()->set_label(get_string('setting_keep_roles_and_enrolments', 'backup'));
if ($this->get_target() != backup::TARGET_CURRENT_DELETING and $this->get_target() != backup::TARGET_EXISTING_DELETING) {
$keep_enrols->set_value(false);
$keep_enrols->set_status(backup_setting::LOCKED_BY_CONFIG);
$keep_enrols->set_visibility(backup_setting::HIDDEN);
}
$this->add_setting($keep_enrols);
$keep_groups = new restore_course_generic_setting('keep_groups_and_groupings', base_setting::IS_BOOLEAN, false);
$keep_groups->set_ui(new backup_setting_ui_select($keep_groups, $keep_groups->get_name(), array(1=>get_string('yes'), 0=>get_string('no'))));
$keep_groups->get_ui()->set_label(get_string('setting_keep_groups_and_groupings', 'backup'));
if ($this->get_target() != backup::TARGET_CURRENT_DELETING and $this->get_target() != backup::TARGET_EXISTING_DELETING) {
$keep_groups->set_value(false);
$keep_groups->set_status(backup_setting::LOCKED_BY_CONFIG);
$keep_groups->set_visibility(backup_setting::HIDDEN);
}
$this->add_setting($keep_groups);
// Define overwrite_conf to decide if course configuration will be restored over existing one
$overwrite = new restore_course_overwrite_conf_setting('overwrite_conf', base_setting::IS_BOOLEAN, false);
$overwrite->set_ui(new backup_setting_ui_select($overwrite, $overwrite->get_name(), array(1=>get_string('yes'), 0=>get_string('no'))));
$overwrite->get_ui()->set_label(get_string('setting_overwriteconf', 'backup'));
if ($this->get_target() == backup::TARGET_NEW_COURSE) {
$overwrite->set_value(true);
$overwrite->set_status(backup_setting::LOCKED_BY_CONFIG);
$overwrite->set_visibility(backup_setting::HIDDEN);
}
$this->add_setting($overwrite);
}
}