class.ilTermsOfServiceAcceptanceDatabaseGateway.php

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<?php
/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Services/TermsOfService/interfaces/interface.ilTermsOfServiceAcceptanceDataGateway.php';

class ilTermsOfServiceAcceptanceDatabaseGateway implements ilTermsOfServiceAcceptanceDataGateway
{
        protected $db;

        public function __construct(ilDBInterface $db)
        {
                $this->db = $db;
        }

        public function trackAcceptance(ilTermsOfServiceAcceptanceEntity $entity)
        {
                $query = 'SELECT id FROM tos_versions WHERE hash = %s AND lng = %s';
                $res   = $this->db->queryF(
                        $query,
                        array('text', 'text'),
                        array($entity->getHash(), $entity->getIso2LanguageCode())
                );

                if($this->db->numRows($res))
                {
                        $row     = $this->db->fetchAssoc($res);
                        $tosv_id = $row['id'];
                }
                else
                {
                        $tosv_id = $this->db->nextId('tos_versions');
                        $this->db->insert(
                                'tos_versions',
                                array(
                                        'id'       => array('integer', $tosv_id),
                                        'lng'      => array('text', $entity->getIso2LanguageCode()),
                                        'src'      => array('text', $entity->getSource()),
                                        'src_type' => array('integer', $entity->getSourceType()),
                                        'text'     => array('clob', $entity->getText()),
                                        'hash'     => array('text', $entity->getHash()),
                                        'ts'       => array('integer', $entity->getTimestamp())
                                )
                        );
                }

                $this->db->insert(
                        'tos_acceptance_track',
                        array(
                                'tosv_id' => array('integer', $tosv_id),
                                'usr_id'  => array('integer', $entity->getUserId()),
                                'ts'      => array('integer', $entity->getTimestamp())
                        )
                );
        }

        public function loadCurrentAcceptanceOfUser(ilTermsOfServiceAcceptanceEntity $entity)
        {
                $this->db->setLimit(1, 0);
                $res = $this->db->queryF('
                        SELECT tos_versions.*, tos_acceptance_track.ts accepted_ts
                        FROM tos_acceptance_track
                        INNER JOIN tos_versions ON id = tosv_id
                        WHERE usr_id = %s
                        ORDER BY tos_acceptance_track.ts DESC
                        ',
                        array('integer'),
                        array($entity->getUserId())
                );
                $row = $this->db->fetchAssoc($res);

                $entity->setId($row['id']);
                $entity->setUserId($row['usr_id']);
                $entity->setIso2LanguageCode($row['lng']);
                $entity->setSource($row['src']);
                $entity->setSourceType($row['src_type']);
                $entity->setText($row['text']);
                $entity->setTimestamp($row['accepted_ts']);
                $entity->setHash($row['hash']);

                return $entity;
        }

        public function loadById(ilTermsOfServiceAcceptanceEntity $entity)
        {
                $res = $this->db->queryF('
                        SELECT *
                        FROM tos_versions
                        WHERE id = %s
                        ',
                        array('integer'),
                        array($entity->getId())
                );
                $row = $this->db->fetchAssoc($res);

                $entity->setId($row['id']);
                $entity->setIso2LanguageCode($row['lng']);
                $entity->setSource($row['src']);
                $entity->setSourceType($row['src_type']);
                $entity->setText($row['text']);
                $entity->setTimestamp($row['ts']);
                $entity->setHash($row['hash']);

                return $entity;
        }

        public function deleteAcceptanceHistoryByUser(ilTermsOfServiceAcceptanceEntity $entity)
        {
                $this->db->manipulate('DELETE FROM tos_acceptance_track WHERE usr_id = ' . $this->db->quote($entity->getUserId(), 'integer'));
        }
}