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'));
    }
}