C:/xampp/htdocs/moodle/backup/moodle2/backup_root_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/>.

class backup_root_task extends backup_task {

    public function build() {

        // Add all the steps needed to prepare any moodle2 backup to work
        $this->add_step(new create_and_clean_temp_stuff('create_and_clean_temp_stuff'));

        $this->built = true;
    }

// Protected API starts here

    protected function converter_deps($main_setting, $converters) {
        foreach ($this->settings as $setting) {
            $name = $setting->get_name();
            if (in_array($name, $converters)) {
                $setvalue = convert_helper::export_converter_dependencies($name, $main_setting->get_name());
                if ($setvalue !== false) {
                    $setting->add_dependency($main_setting, $setvalue, array('value' => $name));
                }
            }
        }
    }

    protected function define_settings() {
        global $CFG;
        require_once($CFG->dirroot . '/backup/util/helper/convert_helper.class.php');
        // Define filename setting
        $filename = new backup_filename_setting('filename', base_setting::IS_FILENAME, 'backup.mbz');
        $filename->set_ui(get_string('filename', 'backup'), 'backup.mbz', array('size'=>50));
        $this->add_setting($filename);

        //Sample custom settings
        $converters = convert_helper::available_converters(false);
        foreach ($converters as $cnv) {
            $formatcnv = new backup_users_setting($cnv, base_setting::IS_BOOLEAN, false);
            $formatcnv->set_ui(new backup_setting_ui_checkbox($formatcnv, get_string('backupformat'.$cnv, 'backup')));
            $this->add_setting($formatcnv);
        }

        // Define users setting (keeping it on hand to define dependencies)
        $users = new backup_users_setting('users', base_setting::IS_BOOLEAN, true);
        $users->set_ui(new backup_setting_ui_checkbox($users, get_string('rootsettingusers', 'backup')));
        $this->add_setting($users);
        $this->converter_deps($users, $converters);

        // Define anonymize (dependent of users)
        $anonymize = new backup_anonymize_setting('anonymize', base_setting::IS_BOOLEAN, false);
        $anonymize->set_ui(new backup_setting_ui_checkbox($anonymize, get_string('rootsettinganonymize', 'backup')));
        $this->add_setting($anonymize);
        $users->add_dependency($anonymize);

        // Define role_assignments (dependent of users)
        $roleassignments = new backup_role_assignments_setting('role_assignments', base_setting::IS_BOOLEAN, true);
        $roleassignments->set_ui(new backup_setting_ui_checkbox($roleassignments, get_string('rootsettingroleassignments', 'backup')));
        $this->add_setting($roleassignments);
        $users->add_dependency($roleassignments);

        // Define user_files (dependent of users and anonymize)
        $userfiles = new backup_user_files_setting('user_files', base_setting::IS_BOOLEAN, true);
        $userfiles->set_ui(new backup_setting_ui_checkbox($userfiles, get_string('rootsettinguserfiles', 'backup')));
        $this->add_setting($userfiles);
        $users->add_dependency($userfiles);
        $anonymize->add_dependency($userfiles, setting_dependency::DISABLED_TRUE);

        // Define activities
        $activities = new backup_activities_setting('activities', base_setting::IS_BOOLEAN, true);
        $activities->set_ui(new backup_setting_ui_checkbox($activities, get_string('rootsettingactivities', 'backup')));
        $this->add_setting($activities);

        // Define blocks
        $blocks = new backup_generic_setting('blocks', base_setting::IS_BOOLEAN, true);
        $blocks->set_ui(new backup_setting_ui_checkbox($blocks, get_string('rootsettingblocks', 'backup')));
        $this->add_setting($blocks);
        $this->converter_deps($blocks, $converters);

        // Define filters
        $filters = new backup_generic_setting('filters', base_setting::IS_BOOLEAN, true);
        $filters->set_ui(new backup_setting_ui_checkbox($filters, get_string('rootsettingfilters', 'backup')));
        $this->add_setting($filters);
        $this->converter_deps($filters, $converters);

        // Define comments (dependent of users)
        $comments = new backup_comments_setting('comments', base_setting::IS_BOOLEAN, true);
        $comments->set_ui(new backup_setting_ui_checkbox($comments, get_string('rootsettingcomments', 'backup')));
        $this->add_setting($comments);
        $users->add_dependency($comments);

        // Define completion (dependent of users)
        $completion = new backup_userscompletion_setting('userscompletion', base_setting::IS_BOOLEAN, true);
        $completion->set_ui(new backup_setting_ui_checkbox($completion, get_string('rootsettinguserscompletion', 'backup')));
        $this->add_setting($completion);
        $users->add_dependency($completion);

        // Define logs (dependent of users)
        $logs = new backup_logs_setting('logs', base_setting::IS_BOOLEAN, true);
        $logs->set_ui(new backup_setting_ui_checkbox($logs, get_string('rootsettinglogs', 'backup')));
        $this->add_setting($logs);
        $users->add_dependency($logs);

        // Define grade_histories (dependent of users)
        $gradehistories = new backup_generic_setting('grade_histories', base_setting::IS_BOOLEAN, true);
        $gradehistories->set_ui(new backup_setting_ui_checkbox($gradehistories, get_string('rootsettinggradehistories', 'backup')));
        $this->add_setting($gradehistories);
        $users->add_dependency($gradehistories);
    }
}