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           efrain | 
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           <?php
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           // This file is part of Moodle - http://moodle.org/
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           //
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           // Moodle is free software: you can redistribute it and/or modify
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           // it under the terms of the GNU General Public License as published by
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           // the Free Software Foundation, either version 3 of the License, or
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           // (at your option) any later version.
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           //
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           // Moodle is distributed in the hope that it will be useful,
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           // but WITHOUT ANY WARRANTY; without even the implied warranty of
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           // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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           // GNU General Public License for more details.
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           //
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           // You should have received a copy of the GNU General Public License
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           // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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           namespace qtype_ordering\privacy;
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           use core_privacy\local\metadata\collection;
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           use core_privacy\local\request\writer;
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           /**
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            * Privacy Subsystem for qtype_numerical implementing null_provider.
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            *
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            * @package    qtype_ordering
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            * @copyright  2013 Gordon Bateson (gordon.bateson@gmail.com)
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            * @author     rdebleu@eWallah.net
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            * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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            */
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           class provider implements \core_privacy\local\metadata\provider, \core_privacy\local\request\user_preference_provider {
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               /**
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                * Returns metadata about this question.
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                *
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                * @param  collection $collection The initialised collection to add items to.
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                * @return collection A listing of user data stored through this question.
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                */
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               public static function get_metadata(collection $collection): collection {
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                   $collection->add_user_preference('qtype_ordering_layouttype', 'privacy:preference:layouttype');
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                   $collection->add_user_preference('qtype_ordering_selecttype', 'privacy:preference:selecttype');
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                   $collection->add_user_preference('qtype_ordering_selectcount', 'privacy:preference:selectcount');
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                   $collection->add_user_preference('qtype_ordering_gradingtype', 'privacy:preference:gradingtype');
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                   $collection->add_user_preference('qtype_ordering_showgrading', 'privacy:preference:showgrading');
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                   $collection->add_user_preference('qtype_ordering_numberingstyle', 'privacy:preference:numberingstyle');
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                   return $collection;
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               }
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               /**
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                * Export all user preferences for the question.
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                *
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                * @param int $userid The userid of the user whose data is to be exported.
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                * @return void
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                */
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               public static function export_user_preferences(int $userid): void {
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                   $preference = get_user_preferences('qtype_ordering_layouttype', null, $userid);
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                   if (null !== $preference) {
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                       writer::export_user_preference(
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                           'qtype_ordering',
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                           'layouttype',
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                           $preference,
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                           get_string('privacy:preference:layouttype', 'qtype_ordering')
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                       );
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                   }
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                   $preference = get_user_preferences('qtype_ordering_selecttype', null, $userid);
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                   if (null !== $preference) {
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                       writer::export_user_preference(
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                           'qtype_ordering',
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                           'selecttype',
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                           $preference,
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                           get_string('privacy:preference:selecttype', 'qtype_ordering')
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                       );
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                   }
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                   $preference = get_user_preferences('qtype_ordering_selectcount', null, $userid);
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                   if (null !== $preference) {
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                       writer::export_user_preference(
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                           'qtype_ordering',
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                           'selectcount',
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                           $preference,
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                           get_string('privacy:preference:selectcount', 'qtype_ordering')
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                       );
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                   }
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                   $preference = get_user_preferences('qtype_ordering_gradingtype', null, $userid);
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                   if (null !== $preference) {
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                       writer::export_user_preference(
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                           'qtype_ordering',
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                           'gradingtype',
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                           $preference,
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                           get_string('privacy:preference:gradingtype', 'qtype_ordering')
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                       );
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                   }
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                   $preference = get_user_preferences('qtype_ordering_showgrading', null, $userid);
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                   if (null !== $preference) {
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                       writer::export_user_preference(
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                           'qtype_ordering',
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                           'showgrading',
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                           $preference,
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                           get_string('privacy:preference:showgrading', 'qtype_ordering')
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                       );
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                   }
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                   $preference = get_user_preferences('qtype_ordering_numberingstyle', null, $userid);
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                   if (null !== $preference) {
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                       writer::export_user_preference(
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                           'qtype_ordering',
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                           'numberingstyle',
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                           $preference,
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                           get_string('privacy:preference:numberingstyle', 'qtype_ordering')
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                       );
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                   }
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               }
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           }
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