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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/>.

/**
 * A {@link qubaid_condition} representing all the attempts by one user at a given quiz.
 *
 * @package   mod_quiz
 * @category  question
 * @copyright 2015 The Open University
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace mod_quiz\question;
defined('MOODLE_INTERNAL') || die();

/**
 * A {@link qubaid_condition} representing all the attempts by one user at a given quiz.
 *
 * @copyright 2015 The Open University
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class qubaids_for_users_attempts extends \qubaid_join {
    /**
     * Constructor.
     *
     * This takes the same arguments as {@link quiz_get_user_attempts()}.
     *
     * @param int $quizid the quiz id.
     * @param int $userid the userid.
     * @param string $status 'all', 'finished' or 'unfinished' to control
     * @param bool $includepreviews defaults to false.
     */
    public function __construct($quizid, $userid, $status = 'finished', $includepreviews = false) {
        $where = 'quiza.quiz = :quizaquiz AND quiza.userid = :userid';
        $params = array('quizaquiz' => $quizid, 'userid' => $userid);

if (!$includepreviews) {
            $where .= ' AND preview = 0';
        }

switch ($status) {
            case 'all':
                break;

case 'finished':
                $where .= ' AND state IN (:state1, :state2)';
                $params['state1'] = \quiz_attempt::FINISHED;
                $params['state2'] = \quiz_attempt::ABANDONED;
                break;

case 'unfinished':
                $where .= ' AND state IN (:state1, :state2)';
                $params['state1'] = \quiz_attempt::IN_PROGRESS;
                $params['state2'] = \quiz_attempt::OVERDUE;
                break;
        }

parent::__construct('{quiz_attempts} quiza', 'quiza.uniqueid', $where, $params);
    }
}