Proyectos de Subversion Moodle

<?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'));

            // Search reindexing (if enabled).

            if (\core_search\manager::is_indexing_enabled()) {

                $this->add_step(new restore_course_search_index('course_search_index'));

            }

        }

        if ($this->get_setting_value('legacyfiles')) {

            $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')) {

            if ($this->get_setting_value('enrolments') == backup::ENROL_ALWAYS) {

                // Restore enrolment methods.

                $this->add_step(new restore_enrolments_structure_step('course_enrolments', 'enrolments.xml'));

            } else 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'));

        // Activity completion defaults.

        $this->add_step(new restore_completion_defaults_structure_step('course_completion_defaults', 'completiondefaults.xml'));

        // Content bank content (conditionally).

        if ($this->get_setting_value('contentbankcontent')) {

            $this->add_step(new restore_contentbankcontent_structure_step('course_contentbank', 'contentbank.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

     */

    public static 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

     */

    public static 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');

        $rules[] = new restore_decode_rule('COURSESECTIONBYID',    '/course/section.php?id=$1',     'course_section');

        // 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/index.php?type=2&id=$1', 'course');

        $rules[] = new restore_decode_rule('USERINDEXVIEWBYID',    '/user/index.php?id=$1',         'course');

        $rules[] = new restore_decode_rule('PLUGINFILEBYCONTEXT',  '/pluginfile.php/$1',            'context');

        $rules[] = new restore_decode_rule('PLUGINFILEBYCONTEXTURLENCODED', '/pluginfile.php/$1', 'context', true);

        return $rules;

    }

// Protected API starts here

    /**

     * Define the common setting that any restore course will have

     */

    protected function define_settings() {

        // 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_overwrite_conf', '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);

            $course = (object)['fullname' => null, 'shortname' => null, 'startdate' => null];

        } else {

            $course = get_course($this->get_courseid());

        }

        $this->add_setting($overwrite);

        $fullnamedefaultvalue = $this->get_info()->original_course_fullname;

        $fullname = new restore_course_defaultcustom_setting('course_fullname', base_setting::IS_TEXT, $fullnamedefaultvalue);

        $fullname->set_ui(new backup_setting_ui_defaultcustom($fullname, get_string('setting_course_fullname', 'backup'),

            ['customvalue' => $fullnamedefaultvalue, 'defaultvalue' => $course->fullname]));

        $this->add_setting($fullname);

        $shortnamedefaultvalue = $this->get_info()->original_course_shortname;

        $shortname = new restore_course_defaultcustom_setting('course_shortname', base_setting::IS_TEXT, $shortnamedefaultvalue);

        $shortname->set_ui(new backup_setting_ui_defaultcustom($shortname, get_string('setting_course_shortname', 'backup'),

            ['customvalue' => $shortnamedefaultvalue, 'defaultvalue' => $course->shortname]));

        $this->add_setting($shortname);

        $startdatedefaultvalue = $this->get_info()->original_course_startdate;

        $startdate = new restore_course_defaultcustom_setting('course_startdate', base_setting::IS_INTEGER, $startdatedefaultvalue);

        $startdate->set_ui(new backup_setting_ui_defaultcustom($startdate, get_string('setting_course_startdate', 'backup'),

            ['customvalue' => $startdatedefaultvalue, 'defaultvalue' => $course->startdate, 'type' => 'date_time_selector']));

        $this->add_setting($startdate);

        $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);

    }

}