questlab/stationtypes/multiplechoice/MultiplechoiceStationtypeModel.inc

<?php

    /**
     * The Legend of Z
     *
     * @author      Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
     * @copyright   2014 Heinrich-Heine-Universität Düsseldorf
     * @license     http://www.gnu.org/licenses/gpl.html
     * @link        https://bitbucket.org/coderkun/the-legend-of-z
     */

    namespace hhu\z\stationtypes;


    /**
     * Model of the StationtypeAgent for a multiple choice task.
     *
     * @author  Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
     */
    class MultiplechoiceStationtypeModel extends \hhu\z\models\StationtypeModel
    {




        /**
         * Copy a Station.
         *
         * @param   int $userId             ID of creating user
         * @param   int $sourceStationId    ID of Station to copy from
         * @param   int $targetStationId    ID of Station to copy to
         * @param   int $seminaryMediaIds   Mapping of SeminaryMedia-IDs from source Seminary to targetSeminary
         */
        public function copyStation($userId, $sourceStationId, $targetStationId, $seminaryMediaIds)
        {
            // Copy answers
            $this->db->query(
                'INSERT INTO stationtypes_multiplechoice '.
                '(created_user_id, station_id, pos, answer, tick) '.
                'SELECT ?, ?, pos, answer, tick '.
                'FROM stationtypes_multiplechoice '.
                'WHERE station_id = ?',
                'iii',
                $userId, $targetStationId,
                $sourceStationId
            );
        }


        /**
         * Get all answers for a Station
         *
         * @param   int     $stationId  ID of Station
         * @return  array               List of answers
         */
        public function getAnswers($stationId)
        {
            return $this->db->query(
                'SELECT id, pos, answer, tick '.
                'FROM stationtypes_multiplechoice '.
                'WHERE station_id = ? '.
                'ORDER BY pos',
                'i',
                $stationId
            );
        }


        /**
         * Set an answer for a Station.
         *
         * @param   int     $userId     ID of creating user
         * @param   int     $stationId  ID of Station to set answer for
         * @param   int     $pos        Position of answer
         * @param   string  $answer     Answer text
         * @param   int     $tick       Whether the answer is correct or not
         */
        public function setAnswer($userId, $stationId, $pos, $answer, $tick)
        {
            $this->db->query(
                'INSERT INTO stationtypes_multiplechoice '.
                '(created_user_id, station_id, pos, answer, tick) '.
                'VALUES '.
                '(?, ?, ?, ?, ?) '.
                'ON DUPLICATE KEY UPDATE '.
                'answer = ?, tick = ?',
                'iiisisi',
                $userId,
                $stationId,
                $pos,
                $answer,
                $tick,
                $answer,
                $tick
            );
        }


        /**
         * Delete all answers of a Station above a given index.
         *
         * @param   int $stationId  ID of Station to delete answers for
         * @param   int $offset     Offset to delete answers above
         */
        public function deleteAnswers($stationId, $offset)
        {
            // Delete answers
            $this->db->query(
                'DELETE FROM stationtypes_multiplechoice '.
                'WHERE station_id = ? AND pos > ?',
                'ii',
                $stationId,
                $offset
            );
        }


        /**
         * Save Character group’s submission for an answer
         *
         * @param   int     $answerId           ID of answer
         * @param   int     $charactergroupId   ID of Character group
         * @param   string  $answer             Submitted answer
         */
        public function setCharactergroupSubmission($answerId, $charactergroupId, $answer)
        {
            $this->db->query(
                'INSERT INTO stationtypes_multiplechoice_charactergroups '.
                '(stationtypes_multiplechoice_id, charactergroup_id, ticked) '.
                'VALUES '.
                '(?, ?, ?) '.
                'ON DUPLICATE KEY UPDATE '.
                'ticked = ?',
                'iiii',
                $answerId, $charactergroupId, $answer, $answer
            );
        }


        /**
         * Get Character group’s submission for an answer.
         *
         * @param   int     $answerId           ID of answer
         * @param   int     $charactergroupId   ID of Character group
         * @return  boolean                     Submission
         */
        public function getCharactergroupSubmission($answerId, $charactergroupId)
        {
            $data = $this->db->query(
                'SELECT ticked '.
                'FROM stationtypes_multiplechoice_charactergroups '.
                'WHERE stationtypes_multiplechoice_id = ? AND charactergroup_id = ?',
                'ii',
                $answerId, $charactergroupId
            );
            if(!empty($data)) {
                return boolval($data[0]['ticked']);
            }


            return false;
        }

    }

?>