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							1846 lines
						
					
					
						
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							1846 lines
						
					
					
						
							70 KiB
						
					
					
				<?php
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/* See license terms in /license.txt */
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//use Chamilo\UserBundle\Entity\User;
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/**
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 * Class Event
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 * Functions of this library are used to record informations when some kind
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 * of event occur. Each event has his own types of informations then each event
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 * use its own function.
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 */
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class Event
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{
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    /**
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     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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     * @desc Record information for open event (when homepage is opened)
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     */
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    public static function event_open()
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    {
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        global $_configuration;
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        global $TABLETRACK_OPEN;
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        // @getHostByAddr($_SERVER['REMOTE_ADDR']) : will provide host and country information
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        // $_SERVER['HTTP_USER_AGENT'] :  will provide browser and os information
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        // $_SERVER['HTTP_REFERER'] : provide information about refering url
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        if (isset($_SERVER['HTT_REFERER'])) {
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            $referer = Database::escape_string($_SERVER['HTTP_REFERER']);
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        } else {
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            $referer = '';
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        }
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        // record informations only if user comes from another site
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        //if(!eregi($_configuration['root_web'],$referer))
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        $pos = strpos($referer, $_configuration['root_web']);
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        if ($pos === false && $referer != '') {
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            $ip = api_get_real_ip();
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            $remhost = @ getHostByAddr($ip);
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            if ($remhost == $ip)
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                $remhost = "Unknown"; // don't change this
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            $reallyNow = api_get_utc_datetime();
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            $sql = "INSERT INTO ".$TABLETRACK_OPEN."
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        		(open_remote_host,
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        		 open_agent,
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        		 open_referer,
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        		 open_date)
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        		VALUES
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        		('".$remhost."',
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        		 '".Database::escape_string($_SERVER['HTTP_USER_AGENT'])."', '".Database::escape_string($referer)."', '$reallyNow')";
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            $res = Database::query($sql);
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        }
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        return 1;
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    }
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    /**
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     * @author Sebastien Piraux <piraux_seb@hotmail.com> old code
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     * @author Julio Montoya 2013
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     * @desc Record information for login event when an user identifies himself with username & password
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     */
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    public static function event_login()
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    {
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        $userInfo = api_get_user_info();
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        if (empty($userInfo)) {
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            return false;
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        }
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        $userId = api_get_user_id();
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        $TABLETRACK_LOGIN = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
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        $reallyNow = api_get_utc_datetime();
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        $sql = "INSERT INTO ".$TABLETRACK_LOGIN." (login_user_id, login_ip, login_date, logout_date) VALUES
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                    ('".$userId."',
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                    '".Database::escape_string(api_get_real_ip())."',
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                    '".$reallyNow."',
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                    '".$reallyNow."'
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                    )";
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        Database::query($sql);
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        // Auto subscribe
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        $user_status = $userInfo['status']  == SESSIONADMIN ? 'sessionadmin' :
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            $userInfo['status'] == COURSEMANAGER ? 'teacher' :
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                $userInfo['status'] == DRH ? 'DRH' : 'student';
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        $autoSubscribe = api_get_setting($user_status.'_autosubscribe');
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        if ($autoSubscribe) {
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            $autoSubscribe = explode('|', $autoSubscribe);
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            foreach ($autoSubscribe as $code) {
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                if (CourseManager::course_exists($code)) {
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                    CourseManager::subscribe_user($userId, $code);
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                }
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            }
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        }
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    }
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    /**
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     * @param tool name of the tool (name in mainDb.accueil table)
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     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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     * @desc Record information for access event for courses
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     */
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    public static function accessCourse()
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    {
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        $TABLETRACK_ACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS);
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        //for "what's new" notification
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        $TABLETRACK_LASTACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LASTACCESS);
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        $id_session = api_get_session_id();
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        $now = api_get_utc_datetime();
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        $courseId = api_get_course_int_id();
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        $user_id = api_get_user_id();
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        if ($user_id) {
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            $user_id = "'".$user_id."'";
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        } else {
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            $user_id = "0"; // no one
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        }
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        $sql = "INSERT INTO ".$TABLETRACK_ACCESS."  (access_user_id, c_id, access_date, access_session_id) VALUES
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                (".$user_id.", '".$courseId."', '".$now."','".$id_session."')";
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        Database::query($sql);
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        // added for "what's new" notification
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        $sql = "UPDATE $TABLETRACK_LASTACCESS  SET access_date = '$now'
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                WHERE access_user_id = $user_id AND c_id = '$courseId' AND access_tool IS NULL AND access_session_id=".$id_session;
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        $result = Database::query($sql);
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        if (Database::affected_rows($result) == 0) {
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            $sql = "INSERT INTO $TABLETRACK_LASTACCESS (access_user_id, c_id, access_date, access_session_id)
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                    VALUES (".$user_id.", '".$courseId."', '$now', '".$id_session."')";
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            Database::query($sql);
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        }
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        return 1;
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    }
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    /**
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     * @param tool name of the tool (name in mainDb.accueil table)
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     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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     * @desc Record information for access event for tools
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     *
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     *  $tool can take this values :
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     *  Links, Calendar, Document, Announcements,
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     *  Group, Video, Works, Users, Exercices, Course Desc
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     *  ...
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     *  Values can be added if new modules are created (15char max)
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     *  I encourage to use $nameTool as $tool when calling this function
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     *
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     * 	Functionality for "what's new" notification is added by Toon Van Hoecke
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     */
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    public static function event_access_tool($tool, $id_session = 0)
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    {
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        $TABLETRACK_ACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS);
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        $TABLETRACK_LASTACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LASTACCESS); //for "what's new" notification
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        $_course = api_get_course_info();
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        $courseId = api_get_course_int_id();
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        $id_session = api_get_session_id();
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        $tool = Database::escape_string($tool);
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        $reallyNow = api_get_utc_datetime();
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        $user_id = api_get_user_id();
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        // record information
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        // only if user comes from the course $_cid
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        //if( eregi($_configuration['root_web'].$_cid,$_SERVER['HTTP_REFERER'] ) )
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        //$pos = strpos($_SERVER['HTTP_REFERER'],$_configuration['root_web'].$_cid);
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        $coursePath = isset($_course['path']) ? $_course['path'] : null;
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        $pos = isset($_SERVER['HTTP_REFERER']) ? strpos(strtolower($_SERVER['HTTP_REFERER']), strtolower(api_get_path(WEB_COURSE_PATH).$coursePath)) : false;
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        // added for "what's new" notification
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        $pos2 = isset($_SERVER['HTTP_REFERER']) ? strpos(strtolower($_SERVER['HTTP_REFERER']), strtolower(api_get_path(WEB_PATH)."index")) : false;
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        // end "what's new" notification
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        if ($pos !== false || $pos2 !== false) {
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            $sql = "INSERT INTO ".$TABLETRACK_ACCESS."
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                        (access_user_id,
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                         c_id,
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                         access_tool,
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                         access_date,
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                         access_session_id
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                         )
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                    VALUES
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                        (".$user_id.",".// Don't add ' ' around value, it's already done.
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                "'".$courseId."' ,
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                        '".$tool."',
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                        '".$reallyNow."',
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                        '".$id_session."')";
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            Database::query($sql);
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        }
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        // "what's new" notification
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        $sql = "UPDATE $TABLETRACK_LASTACCESS
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                SET access_date = '$reallyNow'
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                WHERE access_user_id = ".$user_id." AND c_id = '".$courseId."' AND access_tool = '".$tool."' AND access_session_id=".$id_session;
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        $result = Database::query($sql);
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        if (Database::affected_rows($result) == 0) {
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            $sql = "INSERT INTO $TABLETRACK_LASTACCESS (access_user_id, c_id, access_tool, access_date, access_session_id)
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                    VALUES (".$user_id.", '".$courseId."' , '$tool', '$reallyNow', $id_session)";
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            Database::query($sql);
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        }
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        return 1;
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    }
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    /**
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     * @param doc_id id of document (id in mainDb.document table)
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     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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     * @desc Record information for download event
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     * (when an user click to d/l a document)
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     * it will be used in a redirection page
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     * bug fixed: Roan Embrechts
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     * Roan:
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     * The user id is put in single quotes,
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     * (why? perhaps to prevent sql insertion hacks?)
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     * and later again.
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     * Doing this twice causes an error, I remove one of them.
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     */
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    public static function event_download($doc_url)
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    {
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        $tbl_stats_downloads = Database::get_main_table(TABLE_STATISTIC_TRACK_E_DOWNLOADS);
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        $doc_url = Database::escape_string($doc_url);
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        $reallyNow = api_get_utc_datetime();
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        $user_id = "'".api_get_user_id()."'";
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        $_cid = api_get_course_int_id();
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        $sql = "INSERT INTO $tbl_stats_downloads (
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                     down_user_id,
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                     c_id,
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                     down_doc_path,
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                     down_date,
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                     down_session_id
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                    )
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                    VALUES (
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                     ".$user_id.",
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                     '".$_cid."',
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                     '".$doc_url."',
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                     '".$reallyNow."',
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                     '".api_get_session_id()."'
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                    )";
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        Database::query($sql);
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        return 1;
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    }
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    /**
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     * @param doc_id id of document (id in mainDb.document table)
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     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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     * @desc Record information for upload event
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     * used in the works tool to record informations when
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     * an user upload 1 work
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     */
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    public static function event_upload($doc_id)
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    {
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        $TABLETRACK_UPLOADS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_UPLOADS);
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        $courseCode = api_get_course_id();
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        $reallyNow = api_get_utc_datetime();
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        $user_id = api_get_user_id();
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        $sql = "INSERT INTO ".$TABLETRACK_UPLOADS."
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                    ( upload_user_id,
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                      upload_cours_id,
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                      upload_work_id,
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                      upload_date,
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                      upload_session_id
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                    )
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                    VALUES (
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                     ".$user_id.",
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                     '".$courseCode."',
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                     '".$doc_id."',
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                     '".$reallyNow."',
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                     '".api_get_session_id()."'
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                    )";
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        Database::query($sql);
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        return 1;
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    }
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						|
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						|
    /**
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     * @param link_id (id in coursDb liens table)
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     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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						|
     * @desc Record information for link event (when an user click on an added link)
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						|
     * it will be used in a redirection page
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						|
     */
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						|
    public static function event_link($link_id)
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						|
    {
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						|
        $TABLETRACK_LINKS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LINKS);
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						|
        $reallyNow = api_get_utc_datetime();
 | 
						|
        $user_id = api_get_user_id();
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						|
        $sql = "INSERT INTO ".$TABLETRACK_LINKS."
 | 
						|
                    ( links_user_id,
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						|
                     c_id,
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                     links_link_id,
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                     links_date,
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                     links_session_id
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                    ) VALUES (
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						|
                     ".$user_id.",
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                     '".api_get_course_int_id()."',
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                     '".Database::escape_string($link_id)."',
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                     '".$reallyNow."',
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                     '".api_get_session_id()."'
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                    )";
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        Database::query($sql);
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        return 1;
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    }
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						|
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						|
    /**
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     * Update the TRACK_E_EXERCICES exercises
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     *
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     * @param   int     exeid id of the attempt
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						|
     * @param   int     exo_id 	exercise id
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						|
     * @param   mixed   result 	score
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						|
     * @param   int     weighting ( higher score )
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						|
     * @param   int     duration ( duration of the attempt in seconds )
 | 
						|
     * @param   int     session_id
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						|
     * @param   int     learnpath_id (id of the learnpath)
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						|
     * @param   int     learnpath_item_id (id of the learnpath_item)
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						|
     *
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						|
     * @author Sebastien Piraux <piraux_seb@hotmail.com>
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						|
     * @author Julio Montoya Armas <gugli100@gmail.com> Reworked 2010
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						|
     * @desc Record result of user when an exercice was done
 | 
						|
     */
 | 
						|
    public static function update_event_exercice(
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						|
        $exeid,
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						|
        $exo_id,
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						|
        $score,
 | 
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        $weighting,
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        $session_id,
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						|
        $learnpath_id = 0,
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						|
        $learnpath_item_id = 0,
 | 
						|
        $learnpath_item_view_id = 0,
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						|
        $duration = 0,
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						|
        $question_list = array(),
 | 
						|
        $status = '',
 | 
						|
        $remind_list = array(),
 | 
						|
        $end_date = null
 | 
						|
    ) {
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						|
        global $debug;
 | 
						|
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						|
        if ($debug) error_log('Called to update_event_exercice');
 | 
						|
        if ($debug) error_log('duration:' . $duration);
 | 
						|
 | 
						|
        if ($exeid != '') {
 | 
						|
            /*
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						|
             * Code commented due BT#8423 do not change the score to 0.
 | 
						|
             *
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						|
             * Validation in case of fraud with actived control time
 | 
						|
            if (!ExerciseLib::exercise_time_control_is_valid($exo_id, $learnpath_id, $learnpath_item_id)) {
 | 
						|
                $score = 0;
 | 
						|
            }
 | 
						|
            */
 | 
						|
            if (!isset($status) || empty($status)) {
 | 
						|
                $status = '';
 | 
						|
            } else {
 | 
						|
                $status = Database::escape_string($status);
 | 
						|
            }
 | 
						|
 | 
						|
            $TABLETRACK_EXERCICES = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
 | 
						|
            if (!empty($question_list)) {
 | 
						|
                $question_list = array_map('intval', $question_list);
 | 
						|
            }
 | 
						|
 | 
						|
            if (!empty($remind_list)) {
 | 
						|
                $remind_list = array_map('intval', $remind_list);
 | 
						|
                $remind_list = array_filter($remind_list);
 | 
						|
                $remind_list = implode(",", $remind_list);
 | 
						|
            } else {
 | 
						|
                $remind_list = '';
 | 
						|
            }
 | 
						|
 | 
						|
            if (empty($end_date)) {
 | 
						|
                $end_date = api_get_utc_datetime();
 | 
						|
            }
 | 
						|
 | 
						|
            $sql = "UPDATE $TABLETRACK_EXERCICES SET
 | 
						|
        		   exe_exo_id 			= '".Database::escape_string($exo_id)."',
 | 
						|
        		   exe_result			= '".Database::escape_string($score)."',
 | 
						|
        		   exe_weighting 		= '".Database::escape_string($weighting)."',
 | 
						|
        		   session_id			= '".Database::escape_string($session_id)."',
 | 
						|
        		   orig_lp_id 			= '".Database::escape_string($learnpath_id)."',
 | 
						|
        		   orig_lp_item_id 		= '".Database::escape_string($learnpath_item_id)."',
 | 
						|
                   orig_lp_item_view_id = '".Database::escape_string($learnpath_item_view_id)."',
 | 
						|
        		   exe_duration 		= '".Database::escape_string($duration)."',
 | 
						|
        		   exe_date				= '".$end_date."',
 | 
						|
        		   status 				= '".$status."',
 | 
						|
        		   questions_to_check 	= '".$remind_list."',
 | 
						|
        		   data_tracking    	= '".implode(',', $question_list)."'
 | 
						|
        		 WHERE exe_id = '".Database::escape_string($exeid)."'";
 | 
						|
            $res = Database::query($sql);
 | 
						|
 | 
						|
            if ($debug) error_log('update_event_exercice called');
 | 
						|
            if ($debug) error_log("$sql");
 | 
						|
 | 
						|
            //Deleting control time session track
 | 
						|
            //ExerciseLib::exercise_time_control_delete($exo_id);
 | 
						|
            return $res;
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Record an event for this attempt at answering an exercise
 | 
						|
     * @param	float	Score achieved
 | 
						|
     * @param	string	Answer given
 | 
						|
     * @param	integer	Question ID
 | 
						|
     * @param	integer Exercise attempt ID a.k.a exe_id (from track_e_exercise)
 | 
						|
     * @param	integer	Position
 | 
						|
     * @param	integer Exercise ID (from c_quiz)
 | 
						|
     * @param	bool update results?
 | 
						|
     * @param	string  Filename (for audio answers - using nanogong)
 | 
						|
     * @param	integer User ID The user who's going to get this score. Default value of null means "get from context".
 | 
						|
     * @param	integer	Course ID (from the "id" column of course table). Default value of null means "get from context".
 | 
						|
     * @param	integer	Session ID (from the session table). Default value of null means "get from context".
 | 
						|
     * @param	integer	Learnpath ID (from c_lp table). Default value of null means "get from context".
 | 
						|
     * @param	integer	Learnpath item ID (from the c_lp_item table). Default value of null means "get from context".
 | 
						|
     * @return	boolean	Result of the insert query
 | 
						|
     */
 | 
						|
    public static function saveQuestionAttempt(
 | 
						|
        $score,
 | 
						|
        $answer,
 | 
						|
        $question_id,
 | 
						|
        $exe_id,
 | 
						|
        $position,
 | 
						|
        $exercise_id = 0,
 | 
						|
        $updateResults = false,
 | 
						|
        $nano = null,
 | 
						|
        $user_id = null,
 | 
						|
        $course_id = null,
 | 
						|
        $session_id = null,
 | 
						|
        $learnpath_id = null,
 | 
						|
        $learnpath_item_id = null
 | 
						|
    ) {
 | 
						|
        global $debug;
 | 
						|
 | 
						|
        //$score = Database::escape_string($score);
 | 
						|
        // $answer = Database::escape_string($answer);
 | 
						|
        $question_id = Database::escape_string($question_id);
 | 
						|
        $exe_id = Database::escape_string($exe_id);
 | 
						|
        $position = Database::escape_string($position);
 | 
						|
        $now = api_get_utc_datetime();
 | 
						|
 | 
						|
        // check user_id or get from context
 | 
						|
        if (empty($user_id) or intval($user_id) != $user_id) {
 | 
						|
            $user_id = api_get_user_id();
 | 
						|
            // anonymous
 | 
						|
            if (empty($user_id)) {
 | 
						|
                $user_id = api_get_anonymous_id();
 | 
						|
            }
 | 
						|
        }
 | 
						|
        // check course_id or get from context
 | 
						|
        if (empty($course_id) or intval($course_id) != $course_id) {
 | 
						|
            $course_id = api_get_course_int_id();
 | 
						|
        }
 | 
						|
        // check session_id or get from context
 | 
						|
        if (empty($session_id) or intval($session_id) != $session_id) {
 | 
						|
            $session_id = api_get_session_id();
 | 
						|
        }
 | 
						|
        // check learnpath_id or get from context
 | 
						|
        if (empty($learnpath_id)) {
 | 
						|
            global $learnpath_id;
 | 
						|
        }
 | 
						|
        // check learnpath_item_id or get from context
 | 
						|
        if (empty($learnpath_item_id)) {
 | 
						|
            global $learnpath_item_id;
 | 
						|
        }
 | 
						|
 | 
						|
        $TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
 | 
						|
        if ($debug) {
 | 
						|
            error_log("----- entering saveQuestionAttempt() function ------");
 | 
						|
            error_log("answer: $answer");
 | 
						|
            error_log("score: $score");
 | 
						|
            error_log("question_id : $question_id");
 | 
						|
            error_log("position: $position");
 | 
						|
        }
 | 
						|
 | 
						|
        //Validation in case of fraud with active control time
 | 
						|
        if (!ExerciseLib::exercise_time_control_is_valid($exercise_id, $learnpath_id, $learnpath_item_id)) {
 | 
						|
            if ($debug) {
 | 
						|
                error_log("exercise_time_control_is_valid is false");
 | 
						|
            }
 | 
						|
            $score = 0;
 | 
						|
            $answer = 0;
 | 
						|
        }
 | 
						|
 | 
						|
        if (!empty($user_id)) {
 | 
						|
            $user_id = "'".$user_id."'";
 | 
						|
        } else {
 | 
						|
            // anonymous
 | 
						|
            $user_id = api_get_anonymous_id();
 | 
						|
        }
 | 
						|
 | 
						|
        $file = '';
 | 
						|
        if (isset($nano)) {
 | 
						|
            $file = Database::escape_string(basename($nano->load_filename_if_exists(false)));
 | 
						|
        }
 | 
						|
 | 
						|
        $session_id = api_get_session_id();
 | 
						|
 | 
						|
        if (!empty($question_id) && !empty($exe_id) && !empty($user_id)) {
 | 
						|
            $attempt = array(
 | 
						|
                'user_id' => $user_id,
 | 
						|
                'question_id' => $question_id,
 | 
						|
                'answer' => $answer,
 | 
						|
                'marks' => $score,
 | 
						|
                'c_id' => $course_id,
 | 
						|
                'session_id' => $session_id,
 | 
						|
                'position' => $position,
 | 
						|
                'tms' => $now,
 | 
						|
                'filename' => $file,
 | 
						|
            );
 | 
						|
 | 
						|
 | 
						|
            // Check if attempt exists.
 | 
						|
 | 
						|
            $sql = "SELECT exe_id FROM $TBL_TRACK_ATTEMPT
 | 
						|
                    WHERE c_id = $course_id AND
 | 
						|
                          session_id = $session_id AND
 | 
						|
                          exe_id = $exe_id AND
 | 
						|
                          user_id = $user_id AND
 | 
						|
                          question_id = $question_id AND
 | 
						|
                          position = $position";
 | 
						|
            $result = Database::query($sql);
 | 
						|
            if (Database::num_rows($result)) {
 | 
						|
                if ($debug) {
 | 
						|
                    error_log("Attempt already exist: exe_id: $exe_id - user_id:$user_id - question_id:$question_id");
 | 
						|
                }
 | 
						|
                if ($updateResults == false) {
 | 
						|
                    //The attempt already exist do not update use  update_event_exercise() instead
 | 
						|
                    return false;
 | 
						|
                }
 | 
						|
            } else {
 | 
						|
                $attempt['exe_id'] = $exe_id;
 | 
						|
            }
 | 
						|
 | 
						|
            if ($debug) {
 | 
						|
                error_log("updateResults : $updateResults");
 | 
						|
                error_log("Saving question attempt: ");
 | 
						|
                error_log($sql);
 | 
						|
            }
 | 
						|
 | 
						|
            $recording_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
 | 
						|
 | 
						|
            if ($updateResults == false) {
 | 
						|
                $attempt_id = Database::insert($TBL_TRACK_ATTEMPT, $attempt);
 | 
						|
 | 
						|
                if (defined('ENABLED_LIVE_EXERCISE_TRACKING')) {
 | 
						|
                    if ($debug) {
 | 
						|
                        error_log("Saving e attempt recording ");
 | 
						|
                    }
 | 
						|
                    $attempt_recording = array(
 | 
						|
                        'exe_id' => $attempt_id,
 | 
						|
                        'question_id' => $question_id,
 | 
						|
                        'marks' => $score,
 | 
						|
                        'insert_date' => $now,
 | 
						|
                        'author' => '',
 | 
						|
                        'session_id' => $session_id,
 | 
						|
                    );
 | 
						|
                    Database::insert($recording_table, $attempt_recording);
 | 
						|
                }
 | 
						|
            } else {
 | 
						|
                Database::update($TBL_TRACK_ATTEMPT, $attempt,
 | 
						|
                    array('exe_id = ? AND question_id = ? AND user_id = ? ' => array($exe_id, $question_id, $user_id)));
 | 
						|
 | 
						|
                if (defined('ENABLED_LIVE_EXERCISE_TRACKING')) {
 | 
						|
 | 
						|
                    $attempt_recording = array(
 | 
						|
                        'exe_id' => $exe_id,
 | 
						|
                        'question_id' => $question_id,
 | 
						|
                        'marks' => $score,
 | 
						|
                        'insert_date' => $now,
 | 
						|
                        'author' => '',
 | 
						|
                        'session_id' => $session_id,
 | 
						|
                    );
 | 
						|
 | 
						|
                    Database::update($recording_table, $attempt_recording,
 | 
						|
                        array('exe_id = ? AND question_id = ? AND session_id = ? ' => array($exe_id, $question_id, $session_id))
 | 
						|
                    );
 | 
						|
                }
 | 
						|
                $attempt_id = $exe_id;
 | 
						|
            }
 | 
						|
            return $attempt_id;
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Record an hotspot spot for this attempt at answering an hotspot question
 | 
						|
     * @param	int		Exercise ID
 | 
						|
     * @param	int		Question ID
 | 
						|
     * @param	int		Answer ID
 | 
						|
     * @param	int		Whether this answer is correct (1) or not (0)
 | 
						|
     * @param	string	Coordinates of this point (e.g. 123;324)
 | 
						|
     * @param	bool update results?
 | 
						|
     * @return	boolean	Result of the insert query
 | 
						|
     * @uses Course code and user_id from global scope $_cid and $_user
 | 
						|
     */
 | 
						|
    public static function saveExerciseAttemptHotspot($exe_id, $question_id, $answer_id, $correct, $coords, $updateResults = false, $exerciseId = 0)
 | 
						|
    {
 | 
						|
        global $safe_lp_id, $safe_lp_item_id;
 | 
						|
 | 
						|
        if ($updateResults == false) {
 | 
						|
            // Validation in case of fraud with activated control time
 | 
						|
            if (!ExerciseLib::exercise_time_control_is_valid($exerciseId, $safe_lp_id, $safe_lp_item_id)) {
 | 
						|
                $correct = 0;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        $tbl_track_e_hotspot = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
 | 
						|
        if ($updateResults) {
 | 
						|
            $params = array(
 | 
						|
                'hotspot_correct' => $correct,
 | 
						|
                'hotspot_coordinate' => $coords
 | 
						|
            );
 | 
						|
            Database::update($tbl_track_e_hotspot, $params,
 | 
						|
                array('hotspot_user_id = ? AND hotspot_exe_id = ? AND hotspot_question_id = ? AND hotspot_answer_id = ? ' => array(
 | 
						|
                    api_get_user_id(),
 | 
						|
                    $exe_id,
 | 
						|
                    $question_id,
 | 
						|
                    $answer_id,
 | 
						|
                    $answer_id
 | 
						|
 | 
						|
                )));
 | 
						|
 | 
						|
        } else {
 | 
						|
            $sql = "INSERT INTO $tbl_track_e_hotspot (hotspot_user_id, c_id, hotspot_exe_id, hotspot_question_id, hotspot_answer_id, hotspot_correct, hotspot_coordinate)".
 | 
						|
                " VALUES ('".api_get_user_id()."',".
 | 
						|
                " '".api_get_course_int_id()."', ".
 | 
						|
                " '".Database :: escape_string($exe_id)."', ".
 | 
						|
                " '".Database :: escape_string($question_id)."',".
 | 
						|
                " '".Database :: escape_string($answer_id)."',".
 | 
						|
                " '".Database :: escape_string($correct)."',".
 | 
						|
                " '".Database :: escape_string($coords)."')";
 | 
						|
            return $result = Database::query($sql);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Records information for common (or admin) events (in the track_e_default table)
 | 
						|
     * @author Yannick Warnier <yannick.warnier@beeznest.com>
 | 
						|
     * @param	string	Type of event
 | 
						|
     * @param	string	Type of value
 | 
						|
     * @param	string	Value
 | 
						|
     * @param	string	Timestamp (defaults to null)
 | 
						|
     * @param	integer	User ID (defaults to null)
 | 
						|
     * @param	string	Course code (defaults to null)
 | 
						|
     * @assert ('','','') === false
 | 
						|
     */
 | 
						|
    public static function addEvent(
 | 
						|
        $event_type,
 | 
						|
        $event_value_type,
 | 
						|
        $event_value,
 | 
						|
        $datetime = null,
 | 
						|
        $user_id = null,
 | 
						|
        $course_code = null
 | 
						|
    ) {
 | 
						|
        $TABLETRACK_DEFAULT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_DEFAULT);
 | 
						|
 | 
						|
        if (empty($event_type)) {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
        $event_type = Database::escape_string($event_type);
 | 
						|
        $event_value_type = Database::escape_string($event_value_type);
 | 
						|
 | 
						|
        //Clean the user_info
 | 
						|
        if ($event_value_type == LOG_USER_OBJECT) {
 | 
						|
            if (is_array($event_value)) {
 | 
						|
                unset($event_value['complete_name']);
 | 
						|
                unset($event_value['complete_name_with_username']);
 | 
						|
                unset($event_value['firstName']);
 | 
						|
                unset($event_value['lastName']);
 | 
						|
                unset($event_value['avatar_small']);
 | 
						|
                unset($event_value['avatar_sys_path']);
 | 
						|
                unset($event_value['avatar']);
 | 
						|
                unset($event_value['mail']);
 | 
						|
                unset($event_value['password']);
 | 
						|
                unset($event_value['lastLogin']);
 | 
						|
                unset($event_value['picture_uri']);
 | 
						|
                $event_value = serialize($event_value);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $event_value = Database::escape_string($event_value);
 | 
						|
        $course_info = api_get_course_info($course_code);
 | 
						|
 | 
						|
        if (!empty($course_info)) {
 | 
						|
            $course_id = $course_info['real_id'];
 | 
						|
            $course_code = $course_info['code'];
 | 
						|
            $course_code = Database::escape_string($course_code);
 | 
						|
        } else {
 | 
						|
            $course_id = null;
 | 
						|
            $course_code = null;
 | 
						|
        }
 | 
						|
 | 
						|
        if (!isset($datetime)) {
 | 
						|
            $datetime = api_get_utc_datetime();
 | 
						|
        }
 | 
						|
 | 
						|
        $datetime = Database::escape_string($datetime);
 | 
						|
 | 
						|
        if (!isset($user_id)) {
 | 
						|
            $user_id = api_get_user_id();
 | 
						|
        }
 | 
						|
 | 
						|
        $user_id = intval($user_id);
 | 
						|
 | 
						|
        $sql = "INSERT INTO $TABLETRACK_DEFAULT
 | 
						|
                    (default_user_id,
 | 
						|
                     default_cours_code,
 | 
						|
                     c_id,
 | 
						|
                     default_date,
 | 
						|
                     default_event_type,
 | 
						|
                     default_value_type,
 | 
						|
                     default_value
 | 
						|
                     )
 | 
						|
                     VALUES('$user_id.',
 | 
						|
                        '$course_code',
 | 
						|
                        '$course_id',
 | 
						|
                        '$datetime',
 | 
						|
                        '$event_type',
 | 
						|
                        '$event_value_type',
 | 
						|
                        '$event_value')";
 | 
						|
        Database::query($sql);
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get every email stored in the database
 | 
						|
     *
 | 
						|
     * @param int $etId
 | 
						|
     * @return type
 | 
						|
     * @assert () !== false
 | 
						|
     */
 | 
						|
    public static function get_all_event_types()
 | 
						|
    {
 | 
						|
        global $event_config;
 | 
						|
 | 
						|
        $sql = 'SELECT etm.id, event_type_name, activated, language_id, message, subject, dokeos_folder
 | 
						|
                FROM '.Database::get_main_table(TABLE_EVENT_EMAIL_TEMPLATE).' etm
 | 
						|
                INNER JOIN '.Database::get_main_table(TABLE_MAIN_LANGUAGE).' l
 | 
						|
                ON etm.language_id = l.id';
 | 
						|
 | 
						|
        $events_types = Database::store_result(Database::query($sql), 'ASSOC');
 | 
						|
 | 
						|
        $to_return = array();
 | 
						|
        foreach ($events_types as $et) {
 | 
						|
            $et['nameLangVar'] = $event_config[$et["event_type_name"]]["name_lang_var"];
 | 
						|
            $et['descLangVar'] = $event_config[$et["event_type_name"]]["desc_lang_var"];
 | 
						|
            $to_return[] = $et;
 | 
						|
        }
 | 
						|
        return $to_return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get the users related to one event
 | 
						|
     *
 | 
						|
     * @param string $event_name
 | 
						|
     */
 | 
						|
    public static function get_event_users($event_name)
 | 
						|
    {
 | 
						|
        $event_name = Database::escape_string($event_name);
 | 
						|
        $sql = 'SELECT user.user_id,  user.firstname, user.lastname
 | 
						|
                FROM '.Database::get_main_table(TABLE_MAIN_USER).' user
 | 
						|
                JOIN '.Database::get_main_table(TABLE_EVENT_TYPE_REL_USER).' relUser
 | 
						|
                ON relUser.user_id = user.user_id
 | 
						|
                WHERE user.status <> '.ANONYMOUS.' AND relUser.event_type_name = "'.$event_name.'"';
 | 
						|
        $user_list = Database::store_result(Database::query($sql), 'ASSOC');
 | 
						|
        return json_encode($user_list);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $user_id
 | 
						|
     * @param string $event_type
 | 
						|
     * @return array|bool
 | 
						|
     */
 | 
						|
    public static function get_events_by_user_and_type($user_id, $event_type)
 | 
						|
    {
 | 
						|
        $TABLETRACK_DEFAULT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_DEFAULT);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $event_type = Database::escape_string($event_type);
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $TABLETRACK_DEFAULT
 | 
						|
                WHERE default_value_type = 'user_id' AND
 | 
						|
                      default_value = $user_id AND
 | 
						|
                      default_event_type = '$event_type'
 | 
						|
                ORDER BY default_date ";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        if ($result) {
 | 
						|
            return Database::store_result($result, 'ASSOC');
 | 
						|
        }
 | 
						|
        return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @deprecated seems not to be use.
 | 
						|
     * @param $user_id
 | 
						|
     * @param $event_type
 | 
						|
     * @return mixed
 | 
						|
     */
 | 
						|
    function get_latest_event_by_user_and_type($user_id, $event_type)
 | 
						|
    {
 | 
						|
        $result = self::get_events_by_user_and_type($user_id, $event_type);
 | 
						|
        if ($result && !empty($result)) {
 | 
						|
            return $result[0];
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Save the new message for one event and for one language
 | 
						|
     *
 | 
						|
     * @param string $eventName
 | 
						|
     * @param array $users
 | 
						|
     * @param string $message
 | 
						|
     * @param string $subject
 | 
						|
     * @param string $eventMessageLanguage
 | 
						|
     * @param int $activated
 | 
						|
     */
 | 
						|
    public static function save_event_type_message($event_name, $users, $message, $subject, $event_message_language, $activated)
 | 
						|
    {
 | 
						|
        $event_name = Database::escape_string($event_name);
 | 
						|
        $activated = intval($activated);
 | 
						|
        $event_message_language = Database::escape_string($event_message_language);
 | 
						|
 | 
						|
        // Deletes then re-adds the users linked to the event
 | 
						|
        $sql = 'DELETE FROM '.Database::get_main_table(TABLE_EVENT_TYPE_REL_USER).' WHERE event_type_name = "'.$event_name.'"	';
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        foreach ($users as $user) {
 | 
						|
            $sql = 'INSERT INTO '.Database::get_main_table(TABLE_EVENT_TYPE_REL_USER).' (user_id,event_type_name) VALUES('.intval($user).',"'.$event_name.'")';
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
        $language_id = api_get_language_id($event_message_language);
 | 
						|
        // check if this template in this language already exists or not
 | 
						|
        $sql = 'SELECT COUNT(id) as total FROM '.Database::get_main_table(TABLE_EVENT_EMAIL_TEMPLATE).'
 | 
						|
                WHERE event_type_name = "'.$event_name.'" AND language_id = '.$language_id;
 | 
						|
 | 
						|
        $sql = Database::store_result(Database::query($sql), 'ASSOC');
 | 
						|
 | 
						|
        // if already exists, we update
 | 
						|
        if ($sql[0]["total"] > 0) {
 | 
						|
            $sql = 'UPDATE '.Database::get_main_table(TABLE_EVENT_EMAIL_TEMPLATE).'
 | 
						|
                SET message = "'.Database::escape_string($message).'",
 | 
						|
                subject = "'.Database::escape_string($subject).'",
 | 
						|
                activated = '.$activated.'
 | 
						|
                WHERE event_type_name = "'.$event_name.'" AND language_id = (SELECT id FROM '.Database::get_main_table(TABLE_MAIN_LANGUAGE).'
 | 
						|
                    WHERE dokeos_folder = "'.$event_message_language.'")';
 | 
						|
            Database::query($sql);
 | 
						|
        } else { // else we create a new record
 | 
						|
            // gets the language_-_id
 | 
						|
            $lang_id = '(SELECT id FROM '.Database::get_main_table(TABLE_MAIN_LANGUAGE).'
 | 
						|
                        WHERE dokeos_folder = "'.$event_message_language.'")';
 | 
						|
            $lang_id = Database::store_result(Database::query($lang_id), 'ASSOC');
 | 
						|
 | 
						|
            if (!empty($lang_id[0]["id"])) {
 | 
						|
                $sql = 'INSERT INTO '.Database::get_main_table(TABLE_EVENT_EMAIL_TEMPLATE).' (event_type_name, language_id, message, subject, activated)
 | 
						|
                    VALUES("'.$event_name.'", '.$lang_id[0]["id"].', "'.Database::escape_string($message).'", "'.Database::escape_string($subject).'", '.$activated.')';
 | 
						|
                Database::query($sql);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        // set activated at every save
 | 
						|
        $sql = 'UPDATE '.Database::get_main_table(TABLE_EVENT_EMAIL_TEMPLATE).'
 | 
						|
                    SET activated = '.$activated.'
 | 
						|
                    WHERE event_type_name = "'.$event_name.'"';
 | 
						|
        Database::query($sql);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param $etId
 | 
						|
     * @param $users
 | 
						|
     * @param $message
 | 
						|
     * @param $subject
 | 
						|
     * @deprecated seem not to be use
 | 
						|
     */
 | 
						|
    public static function eventTypeMod($etId, $users, $message, $subject) {
 | 
						|
        $etId = intval($etId);
 | 
						|
 | 
						|
        $sql = 'DELETE FROM '.Database::get_main_table(TABLE_EVENT_TYPE_REL_USER).' WHERE event_type_id = '.$etId.'	';
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        foreach ($users as $user) {
 | 
						|
            $sql = 'INSERT INTO '.Database::get_main_table(TABLE_EVENT_TYPE_REL_USER).' (user_id,event_type_id)
 | 
						|
                VALUES('.intval($user).','.$etId.') ';
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = 'UPDATE '.Database::get_main_table(TABLE_MAIN_EVENT_TYPE_MESSAGE).'
 | 
						|
                SET message = "'.Database::escape_string($message).'",
 | 
						|
                    subject = "'.Database::escape_string($subject).'"
 | 
						|
                    WHERE event_type_id = '.$etId.'';
 | 
						|
        Database::query($sql);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the last attempt of an exercise based in the exe_id
 | 
						|
     * @param int $exe_id
 | 
						|
     * @return mixed
 | 
						|
     */
 | 
						|
    public static function getLastAttemptDateOfExercise($exe_id)
 | 
						|
    {
 | 
						|
        $exe_id = intval($exe_id);
 | 
						|
        $track_attempts = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $sql_track_attempt = 'SELECT max(tms) as last_attempt_date FROM '.$track_attempts.' WHERE exe_id='.$exe_id;
 | 
						|
        $rs_last_attempt = Database::query($sql_track_attempt);
 | 
						|
        $row_last_attempt = Database::fetch_array($rs_last_attempt);
 | 
						|
        $last_attempt_date = $row_last_attempt['last_attempt_date']; //Get the date of last attempt
 | 
						|
        return $last_attempt_date;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets the last attempt of an exercise based in the exe_id
 | 
						|
     * @param int $exe_id
 | 
						|
     * @return mixed
 | 
						|
     */
 | 
						|
    public static function getLatestQuestionIdFromAttempt($exe_id)
 | 
						|
    {
 | 
						|
        $exe_id = intval($exe_id);
 | 
						|
        $track_attempts = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $sql = 'SELECT question_id FROM '.$track_attempts.'
 | 
						|
                WHERE exe_id='.$exe_id.'
 | 
						|
                ORDER BY tms DESC
 | 
						|
                LIMIT 1';
 | 
						|
        $result = Database::query($sql);
 | 
						|
        if (Database::num_rows($result)) {
 | 
						|
            $row = Database::fetch_array($result);
 | 
						|
            return $row['question_id'];
 | 
						|
        } else {
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets how many attempts exists by user, exercise, learning path
 | 
						|
     * @param   int user id
 | 
						|
     * @param   int exercise id
 | 
						|
     * @param   int lp id
 | 
						|
     * @param   int lp item id
 | 
						|
     * @param   int lp item view id
 | 
						|
     */
 | 
						|
    public static function get_attempt_count($user_id, $exerciseId, $lp_id, $lp_item_id, $lp_item_view_id)
 | 
						|
    {
 | 
						|
        $stat_table = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $exerciseId = intval($exerciseId);
 | 
						|
        $lp_id = intval($lp_id);
 | 
						|
        $lp_item_id = intval($lp_item_id);
 | 
						|
        $lp_item_view_id = intval($lp_item_view_id);
 | 
						|
 | 
						|
        $sql = "SELECT count(*) as count FROM $stat_table WHERE
 | 
						|
                    exe_exo_id 				= $exerciseId AND
 | 
						|
                    exe_user_id 			= $user_id AND
 | 
						|
                    status 			   	   != 'incomplete' AND
 | 
						|
                    orig_lp_id 				= $lp_id AND
 | 
						|
                    orig_lp_item_id 		= $lp_item_id AND
 | 
						|
                    orig_lp_item_view_id 	= $lp_item_view_id AND
 | 
						|
                    c_id 			        = '".api_get_course_int_id()."' AND
 | 
						|
                    session_id 				= '".api_get_session_id()."'";
 | 
						|
 | 
						|
        $query = Database::query($sql);
 | 
						|
        if (Database::num_rows($query) > 0) {
 | 
						|
            $attempt = Database :: fetch_array($query, 'ASSOC');
 | 
						|
            return $attempt['count'];
 | 
						|
        } else {
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param $user_id
 | 
						|
     * @param $exerciseId
 | 
						|
     * @param $lp_id
 | 
						|
     * @param $lp_item_id
 | 
						|
     * @return int
 | 
						|
     */
 | 
						|
    public static function get_attempt_count_not_finished($user_id, $exerciseId, $lp_id, $lp_item_id)
 | 
						|
    {
 | 
						|
        $stat_table = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $exerciseId = intval($exerciseId);
 | 
						|
        $lp_id = intval($lp_id);
 | 
						|
        $lp_item_id = intval($lp_item_id);
 | 
						|
        //$lp_item_view_id = intval($lp_item_view_id);
 | 
						|
 | 
						|
        $sql = "SELECT count(*) as count FROM $stat_table WHERE
 | 
						|
                    exe_exo_id 			= $exerciseId AND
 | 
						|
                    exe_user_id 		= $user_id AND
 | 
						|
                    status 				!= 'incomplete' AND
 | 
						|
                    orig_lp_id 			= $lp_id AND
 | 
						|
                    orig_lp_item_id 	= $lp_item_id AND
 | 
						|
                    c_id = '".api_get_course_int_id()."' AND
 | 
						|
                    session_id = '".api_get_session_id()."'";
 | 
						|
 | 
						|
        $query = Database::query($sql);
 | 
						|
        if (Database::num_rows($query) > 0) {
 | 
						|
            $attempt = Database :: fetch_array($query, 'ASSOC');
 | 
						|
            return $attempt['count'];
 | 
						|
        } else {
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $user_id
 | 
						|
     * @param int $lp_id
 | 
						|
     * @param array $course
 | 
						|
     * @param int $session_id
 | 
						|
     */
 | 
						|
    public static function delete_student_lp_events($user_id, $lp_id, $course, $session_id)
 | 
						|
    {
 | 
						|
        $lp_view_table = Database::get_course_table(TABLE_LP_VIEW);
 | 
						|
        $lp_item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
 | 
						|
        $lpInteraction = Database::get_course_table(TABLE_LP_IV_INTERACTION);
 | 
						|
        $lpObjective = Database::get_course_table(TABLE_LP_IV_OBJECTIVE);
 | 
						|
 | 
						|
        $course_id = $course['real_id'];
 | 
						|
 | 
						|
        if (empty($course_id)) {
 | 
						|
            $course_id = api_get_course_int_id();
 | 
						|
        }
 | 
						|
 | 
						|
        $track_e_exercises = Database::get_main_table(
 | 
						|
            TABLE_STATISTIC_TRACK_E_EXERCICES
 | 
						|
        );
 | 
						|
        $track_attempts = Database::get_main_table(
 | 
						|
            TABLE_STATISTIC_TRACK_E_ATTEMPT
 | 
						|
        );
 | 
						|
        $recording_table = Database::get_main_table(
 | 
						|
            TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING
 | 
						|
        );
 | 
						|
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $lp_id = intval($lp_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
 | 
						|
        //Make sure we have the exact lp_view_id
 | 
						|
        $sql = "SELECT id FROM $lp_view_table
 | 
						|
                WHERE
 | 
						|
                    c_id = $course_id AND
 | 
						|
                    user_id = $user_id AND
 | 
						|
                    lp_id = $lp_id AND
 | 
						|
                    session_id = $session_id ";
 | 
						|
        $result = Database::query($sql);
 | 
						|
 | 
						|
        if (Database::num_rows($result)) {
 | 
						|
            $view = Database::fetch_array($result, 'ASSOC');
 | 
						|
            $lp_view_id = $view['id'];
 | 
						|
 | 
						|
            $sql = "DELETE FROM $lp_item_view_table WHERE c_id = $course_id AND lp_view_id = $lp_view_id ";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $sql = "DELETE FROM $lpInteraction
 | 
						|
                    WHERE c_id = $course_id AND lp_iv_id = $lp_view_id ";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $sql = "DELETE FROM $lpObjective
 | 
						|
                    WHERE c_id = $course_id AND lp_iv_id = $lp_view_id ";
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = "DELETE FROM $lp_view_table
 | 
						|
            WHERE
 | 
						|
                c_id = $course_id AND
 | 
						|
                user_id = $user_id AND
 | 
						|
                lp_id= $lp_id AND
 | 
						|
                session_id = $session_id
 | 
						|
            ";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        $sql = "SELECT exe_id FROM $track_e_exercises
 | 
						|
                WHERE   exe_user_id = $user_id AND
 | 
						|
                        session_id = $session_id AND
 | 
						|
                        c_id = $course_id AND
 | 
						|
                        orig_lp_id = $lp_id";
 | 
						|
        $result = Database::query($sql);
 | 
						|
        $exe_list = array();
 | 
						|
        while ($row = Database::fetch_array($result, 'ASSOC')) {
 | 
						|
            $exe_list[] = $row['exe_id'];
 | 
						|
        }
 | 
						|
 | 
						|
        if (!empty($exe_list) && is_array($exe_list) && count($exe_list) > 0) {
 | 
						|
            $sql = "DELETE FROM $track_e_exercises WHERE exe_id IN (" . implode(
 | 
						|
                    ',',
 | 
						|
                    $exe_list
 | 
						|
                ) . ")";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $sql = "DELETE FROM $track_attempts WHERE exe_id IN (" . implode(
 | 
						|
                    ',',
 | 
						|
                    $exe_list
 | 
						|
                ) . ")";
 | 
						|
            Database::query($sql);
 | 
						|
 | 
						|
            $sql = "DELETE FROM $recording_table WHERE exe_id IN (" . implode(
 | 
						|
                    ',',
 | 
						|
                    $exe_list
 | 
						|
                ) . ")";
 | 
						|
            Database::query($sql);
 | 
						|
        }
 | 
						|
 | 
						|
        Event::addEvent(
 | 
						|
            LOG_LP_ATTEMPT_DELETE,
 | 
						|
            LOG_LP_ID,
 | 
						|
            $lp_id,
 | 
						|
            null,
 | 
						|
            null,
 | 
						|
            $course['code'],
 | 
						|
            $session_id
 | 
						|
        );
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Delete all exercise attempts (included in LP or not)
 | 
						|
     *
 | 
						|
     * @param 	int		user id
 | 
						|
     * @param 	int		exercise id
 | 
						|
     * @param 	string	course code
 | 
						|
     * @param 	int		session id
 | 
						|
     */
 | 
						|
    public static function delete_all_incomplete_attempts($user_id, $exercise_id, $course_id, $session_id = 0)
 | 
						|
    {
 | 
						|
        $track_e_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $course_id = intval($course_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        if (!empty($user_id) && !empty($exercise_id) && !empty($course_code)) {
 | 
						|
            $sql = "DELETE FROM $track_e_exercises
 | 
						|
                    WHERE   exe_user_id = $user_id AND
 | 
						|
                            exe_exo_id = $exercise_id AND
 | 
						|
                            c_id = '$course_id' AND
 | 
						|
                            session_id = $session_id AND
 | 
						|
                            status = 'incomplete' ";
 | 
						|
            Database::query($sql);
 | 
						|
            Event::addEvent(LOG_EXERCISE_RESULT_DELETE, LOG_EXERCISE_AND_USER_ID, $exercise_id.'-'.$user_id, null, null, $course_code, $session_id);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all exercise results (NO Exercises in LPs ) from a given exercise id, course, session
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   string  course code
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function get_all_exercise_results($exercise_id, $courseId, $session_id = 0, $load_question_list = true, $user_id = null)
 | 
						|
    {
 | 
						|
        $TABLETRACK_EXERCICES = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
 | 
						|
        $user_condition = null;
 | 
						|
        if (!empty($user_id)) {
 | 
						|
            $user_id = intval($user_id);
 | 
						|
            $user_condition = "AND exe_user_id = $user_id ";
 | 
						|
        }
 | 
						|
        $sql = "SELECT * FROM $TABLETRACK_EXERCICES
 | 
						|
                WHERE   status = ''  AND
 | 
						|
                        c_id = '$courseId' AND
 | 
						|
                        exe_exo_id = '$exercise_id' AND
 | 
						|
                        session_id = $session_id  AND
 | 
						|
                        orig_lp_id =0 AND
 | 
						|
                        orig_lp_item_id = 0
 | 
						|
                        $user_condition
 | 
						|
                ORDER BY exe_id";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $list[$row['exe_id']] = $row;
 | 
						|
            if ($load_question_list) {
 | 
						|
                $sql = "SELECT * FROM $TBL_TRACK_ATTEMPT WHERE exe_id = {$row['exe_id']}";
 | 
						|
                $res_question = Database::query($sql);
 | 
						|
                while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                    $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all exercise results (NO Exercises in LPs ) from a given exercise id, course, session
 | 
						|
     * @param   string  course code
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function get_all_exercise_results_by_course($courseId, $session_id = 0, $get_count = true)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
 | 
						|
        $select = '*';
 | 
						|
        if ($get_count) {
 | 
						|
            $select = 'count(*) as count';
 | 
						|
        }
 | 
						|
        $sql = "SELECT $select FROM $table_track_exercises
 | 
						|
                WHERE   status = ''  AND
 | 
						|
                        c_id = '$courseId' AND
 | 
						|
                        session_id = $session_id  AND
 | 
						|
                        orig_lp_id = 0 AND
 | 
						|
                        orig_lp_item_id = 0
 | 
						|
                ORDER BY exe_id";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        if ($get_count) {
 | 
						|
            $row = Database::fetch_array($res, 'ASSOC');
 | 
						|
            return $row['count'];
 | 
						|
        } else {
 | 
						|
            $list = array();
 | 
						|
            while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
                $list[$row['exe_id']] = $row;
 | 
						|
                $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = {$row['exe_id']}";
 | 
						|
                $res_question = Database::query($sql);
 | 
						|
                while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                    $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
                }
 | 
						|
            }
 | 
						|
            return $list;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all exercise results (NO Exercises in LPs) from a given exercise id, course, session
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   string  course code
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function get_all_exercise_results_by_user($user_id, $courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_exercises
 | 
						|
                WHERE status = '' AND
 | 
						|
                        exe_user_id = $user_id AND
 | 
						|
                        c_id = '$courseId' AND
 | 
						|
                        session_id = $session_id AND
 | 
						|
                        orig_lp_id = 0 AND
 | 
						|
                        orig_lp_item_id = 0
 | 
						|
                ORDER by exe_id";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $list[$row['exe_id']] = $row;
 | 
						|
            $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = {$row['exe_id']}";
 | 
						|
            $res_question = Database::query($sql);
 | 
						|
            while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        //echo '<pre>'; print_r($list);
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets exercise results (NO Exercises in LPs) from a given exercise id, course, session
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   string  course code
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function get_exercise_results_by_attempt($exe_id, $status = null)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $table_track_attempt_recording = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
 | 
						|
        $exe_id = intval($exe_id);
 | 
						|
 | 
						|
        $status = Database::escape_string($status);
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_exercises WHERE status = '".$status."' AND exe_id = $exe_id";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        if (Database::num_rows($res)) {
 | 
						|
            $row = Database::fetch_array($res, 'ASSOC');
 | 
						|
 | 
						|
            //Checking if this attempt was revised by a teacher
 | 
						|
            $sql_revised = 'SELECT exe_id FROM '.$table_track_attempt_recording.' WHERE author != "" AND exe_id = '.$exe_id.' LIMIT 1';
 | 
						|
            $res_revised = Database::query($sql_revised);
 | 
						|
            $row['attempt_revised'] = 0;
 | 
						|
            if (Database::num_rows($res_revised) > 0) {
 | 
						|
                $row['attempt_revised'] = 1;
 | 
						|
            }
 | 
						|
            $list[$exe_id] = $row;
 | 
						|
            $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = $exe_id ORDER BY tms ASC";
 | 
						|
            $res_question = Database::query($sql);
 | 
						|
            while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                $list[$exe_id]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets exercise results (NO Exercises in LPs) from a given user, exercise id, course, session, lp_id, lp_item_id
 | 
						|
     * @param   int     user id
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   string  course code
 | 
						|
     * @param   int     session id
 | 
						|
     * @param   int     lp id
 | 
						|
     * @param   int     lp item id
 | 
						|
     * @param   string 	order asc or desc
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function getExerciseResultsByUser($user_id, $exercise_id, $courseId, $session_id = 0, $lp_id = 0, $lp_item_id = 0, $order = null)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $table_track_attempt_recording = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $lp_id = intval($lp_id);
 | 
						|
        $lp_item_id = intval($lp_item_id);
 | 
						|
 | 
						|
        if (!in_array(strtolower($order), array('asc', 'desc'))) {
 | 
						|
            $order = 'asc';
 | 
						|
        }
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_exercises
 | 
						|
                WHERE 	status 			= '' AND
 | 
						|
                        exe_user_id 	= $user_id AND
 | 
						|
                        c_id 	        = $courseId AND
 | 
						|
                        exe_exo_id 		= $exercise_id AND
 | 
						|
                        session_id 		= $session_id AND
 | 
						|
                        orig_lp_id 		= $lp_id AND
 | 
						|
                        orig_lp_item_id = $lp_item_id
 | 
						|
                ORDER by exe_id $order ";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            //Checking if this attempt was revised by a teacher
 | 
						|
            $sql_revised = 'SELECT exe_id FROM '.$table_track_attempt_recording.' WHERE author != "" AND exe_id = '.$row['exe_id'].' LIMIT 1';
 | 
						|
            $res_revised = Database::query($sql_revised);
 | 
						|
            $row['attempt_revised'] = 0;
 | 
						|
            if (Database::num_rows($res_revised) > 0) {
 | 
						|
                $row['attempt_revised'] = 1;
 | 
						|
            }
 | 
						|
            $list[$row['exe_id']] = $row;
 | 
						|
            $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = {$row['exe_id']}";
 | 
						|
            $res_question = Database::query($sql);
 | 
						|
            while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Count exercise attempts (NO Exercises in LPs ) from a given exercise id, course, session
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   int     course id
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function count_exercise_attempts_by_user($user_id, $exercise_id, $courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $TABLETRACK_EXERCICES = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
 | 
						|
        $sql = "SELECT count(*) as count FROM $TABLETRACK_EXERCICES
 | 
						|
                WHERE status = ''  AND
 | 
						|
                    exe_user_id = '$user_id' AND
 | 
						|
                    c_id = '$courseId' AND
 | 
						|
                    exe_exo_id = '$exercise_id' AND
 | 
						|
                    session_id = $session_id AND
 | 
						|
                    orig_lp_id =0 AND
 | 
						|
                    orig_lp_item_id = 0
 | 
						|
                ORDER BY exe_id";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $result = 0;
 | 
						|
        if (Database::num_rows($res) > 0) {
 | 
						|
            $row = Database::fetch_array($res, 'ASSOC');
 | 
						|
            $result = $row['count'];
 | 
						|
        }
 | 
						|
        return $result;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all exercise BEST results attempts (NO Exercises in LPs ) from a given exercise id, course, session per user
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   int     course id
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     * @todo rename this function
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function get_best_exercise_results_by_user($exercise_id, $courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_exercises
 | 
						|
                WHERE   status = '' AND
 | 
						|
                        c_id = $courseId AND
 | 
						|
                        exe_exo_id = '$exercise_id' AND
 | 
						|
                        session_id = $session_id AND
 | 
						|
                        orig_lp_id = 0 AND
 | 
						|
                        orig_lp_item_id = 0
 | 
						|
                ORDER BY exe_id";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $list[$row['exe_id']] = $row;
 | 
						|
            $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = {$row['exe_id']}";
 | 
						|
            $res_question = Database::query($sql);
 | 
						|
            while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        //Getting the best results of every student
 | 
						|
        $best_score_return = array();
 | 
						|
 | 
						|
        foreach ($list as $student_result) {
 | 
						|
            $user_id = $student_result['exe_user_id'];
 | 
						|
            $current_best_score[$user_id] = $student_result['exe_result'];
 | 
						|
 | 
						|
            if (isset($current_best_score[$user_id]) && isset($best_score_return[$user_id]) && $current_best_score[$user_id] > $best_score_return[$user_id]['exe_result']) {
 | 
						|
                $best_score_return[$user_id] = $student_result;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $best_score_return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $user_id
 | 
						|
     * @param int $exercise_id
 | 
						|
     * @param int $courseId
 | 
						|
     * @param int $session_id
 | 
						|
     * @return array
 | 
						|
     */
 | 
						|
    public static function get_best_attempt_exercise_results_per_user($user_id, $exercise_id, $courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_exercises
 | 
						|
                WHERE   status = ''  AND
 | 
						|
                        c_id = '$courseId' AND
 | 
						|
                        exe_exo_id = '$exercise_id' AND
 | 
						|
                        session_id = $session_id  AND
 | 
						|
                        exe_user_id = $user_id AND
 | 
						|
                        orig_lp_id =0 AND
 | 
						|
                        orig_lp_item_id = 0
 | 
						|
                        ORDER BY exe_id";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $list[$row['exe_id']] = $row;  /*
 | 
						|
              $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = {$row['exe_id']}";
 | 
						|
              $res_question = Database::query($sql);
 | 
						|
              while($row_q = Database::fetch_array($res_question,'ASSOC')) {
 | 
						|
              $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
              } */
 | 
						|
        }
 | 
						|
        //Getting the best results of every student
 | 
						|
        $best_score_return = array();
 | 
						|
        $best_score_return['exe_result'] = 0;
 | 
						|
 | 
						|
        foreach ($list as $result) {
 | 
						|
            $current_best_score = $result;
 | 
						|
            if ($current_best_score['exe_result'] > $best_score_return['exe_result']) {
 | 
						|
                $best_score_return = $result;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        if (!isset($best_score_return['exe_weighting'])) {
 | 
						|
            $best_score_return = array();
 | 
						|
        }
 | 
						|
        return $best_score_return;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $exercise_id
 | 
						|
     * @param int $courseId
 | 
						|
     * @param int $session_id
 | 
						|
     * @return mixed
 | 
						|
     */
 | 
						|
    public static function count_exercise_result_not_validated($exercise_id, $courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
 | 
						|
        $sql = "SELECT count(e.exe_id) as count
 | 
						|
                FROM $table_track_exercises e LEFT JOIN $table_track_attempt a  ON e.exe_id = a.exe_id
 | 
						|
                WHERE   exe_exo_id = $exercise_id AND
 | 
						|
                        c_id = '$courseId' AND
 | 
						|
                        e.session_id = $session_id  AND
 | 
						|
                        orig_lp_id = 0 AND
 | 
						|
                        marks IS NULL AND
 | 
						|
                        status = '' AND
 | 
						|
                        orig_lp_item_id = 0 ORDER BY e.exe_id";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $row = Database::fetch_array($res, 'ASSOC');
 | 
						|
 | 
						|
        return $row['count'];
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all exercise BEST results attempts (NO Exercises in LPs ) from a given exercise id, course, session per user
 | 
						|
     * @param   int     exercise id
 | 
						|
     * @param   int   course id
 | 
						|
     * @param   int     session id
 | 
						|
     * @return  array   with the results
 | 
						|
     *
 | 
						|
     */
 | 
						|
    public static function get_count_exercises_attempted_by_course($courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
 | 
						|
        $sql = "SELECT DISTINCT exe_exo_id, exe_user_id
 | 
						|
                FROM $table_track_exercises
 | 
						|
                WHERE   status = '' AND
 | 
						|
                        c_id = '$courseId' AND
 | 
						|
                        session_id = $session_id AND
 | 
						|
                        orig_lp_id =0 AND
 | 
						|
                        orig_lp_item_id = 0
 | 
						|
                ORDER BY exe_id";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $count = 0;
 | 
						|
        if (Database::num_rows($res) > 0) {
 | 
						|
            $count = Database::num_rows($res);
 | 
						|
        }
 | 
						|
        return $count;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Gets all exercise events from a Learning Path within a Course 	nd Session
 | 
						|
     * @param	int		exercise id
 | 
						|
     * @param	string	course_code
 | 
						|
     * @param 	int		session id
 | 
						|
     * @return 	array
 | 
						|
     */
 | 
						|
    public static function get_all_exercise_event_from_lp($exercise_id, $courseId, $session_id = 0)
 | 
						|
    {
 | 
						|
        $table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $exercise_id = intval($exercise_id);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_exercises
 | 
						|
                WHERE   status = '' AND
 | 
						|
                        c_id = $courseId AND
 | 
						|
                        exe_exo_id = '$exercise_id' AND
 | 
						|
                        session_id = $session_id AND
 | 
						|
                        orig_lp_id !=0 AND
 | 
						|
                        orig_lp_item_id != 0";
 | 
						|
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            $list[$row['exe_id']] = $row;
 | 
						|
            $sql = "SELECT * FROM $table_track_attempt WHERE exe_id = {$row['exe_id']}";
 | 
						|
            $res_question = Database::query($sql);
 | 
						|
            while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $lp_id
 | 
						|
     * @param $course_id
 | 
						|
     * @return array
 | 
						|
     */
 | 
						|
    public static function get_all_exercises_from_lp($lp_id, $course_id)
 | 
						|
    {
 | 
						|
        $lp_item_table = Database :: get_course_table(TABLE_LP_ITEM);
 | 
						|
        $course_id = intval($course_id);
 | 
						|
        $lp_id = intval($lp_id);
 | 
						|
        $sql = "SELECT * FROM $lp_item_table
 | 
						|
                WHERE c_id = $course_id AND lp_id = '".$lp_id."'
 | 
						|
                ORDER BY parent_item_id, display_order";
 | 
						|
        $res = Database::query($sql);
 | 
						|
        $my_exercise_list = array();
 | 
						|
        while ($row = Database::fetch_array($res, 'ASSOC')) {
 | 
						|
            if ($row['item_type'] == 'quiz') {
 | 
						|
                $my_exercise_list[] = $row;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $my_exercise_list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This function gets the comments of an exercise
 | 
						|
     *
 | 
						|
     * @param int $id
 | 
						|
     * @param int $question_id
 | 
						|
     * @return string the comment
 | 
						|
     */
 | 
						|
    public static function get_comments($exe_id, $question_id)
 | 
						|
    {
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $sql = "SELECT teacher_comment FROM ".$table_track_attempt."
 | 
						|
                WHERE exe_id='".Database::escape_string($exe_id)."' AND question_id = '".Database::escape_string($question_id)."'
 | 
						|
                ORDER by question_id";
 | 
						|
        $sqlres = Database::query($sql);
 | 
						|
        $comm = Database::result($sqlres, 0, "teacher_comment");
 | 
						|
        return $comm;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param int $exe_id
 | 
						|
     * @return array
 | 
						|
     */
 | 
						|
    public static function getAllExerciseEventByExeId($exe_id)
 | 
						|
    {
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
        $exe_id = intval($exe_id);
 | 
						|
        $list = array();
 | 
						|
 | 
						|
        $sql = "SELECT * FROM $table_track_attempt
 | 
						|
                WHERE exe_id = $exe_id ORDER BY position";
 | 
						|
        $res_question = Database::query($sql);
 | 
						|
        if (Database::num_rows($res_question)) {
 | 
						|
            while ($row = Database::fetch_array($res_question, 'ASSOC')) {
 | 
						|
                $list[$row['question_id']][] = $row;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $list;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     *
 | 
						|
     * @param int $exe_id
 | 
						|
     * @param int $user_id
 | 
						|
     * @param int $courseId
 | 
						|
     * @param int $session_id
 | 
						|
     * @param int $question_id
 | 
						|
     */
 | 
						|
    public static function delete_attempt($exe_id, $user_id, $courseId, $session_id, $question_id)
 | 
						|
    {
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
 | 
						|
 | 
						|
        $exe_id = intval($exe_id);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $session_id = intval($session_id);
 | 
						|
        $question_id = intval($question_id);
 | 
						|
 | 
						|
        $sql = "DELETE FROM $table_track_attempt
 | 
						|
                WHERE   exe_id = $exe_id AND
 | 
						|
                        user_id = $user_id AND
 | 
						|
                        c_id = $courseId AND
 | 
						|
                        session_id = $session_id AND
 | 
						|
                        question_id = $question_id ";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        Event::addEvent(
 | 
						|
            LOG_QUESTION_RESULT_DELETE,
 | 
						|
            LOG_EXERCISE_ATTEMPT_QUESTION_ID,
 | 
						|
            $exe_id . '-' . $question_id,
 | 
						|
            null,
 | 
						|
            null,
 | 
						|
            $course_code,
 | 
						|
            $session_id
 | 
						|
        );
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param $exe_id
 | 
						|
     * @param $user_id
 | 
						|
     * @param int $courseId
 | 
						|
     * @param $question_id
 | 
						|
     */
 | 
						|
    public static function delete_attempt_hotspot($exe_id, $user_id, $courseId, $question_id)
 | 
						|
    {
 | 
						|
        $table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
 | 
						|
 | 
						|
        $exe_id = intval($exe_id);
 | 
						|
        $user_id = intval($user_id);
 | 
						|
        $courseId = intval($courseId);
 | 
						|
        $question_id = intval($question_id);
 | 
						|
 | 
						|
        $sql = "DELETE FROM $table_track_attempt
 | 
						|
                WHERE   hotspot_exe_id = $exe_id AND
 | 
						|
                        hotspot_user_id = $user_id AND
 | 
						|
                        c_id = $courseId AND
 | 
						|
                        hotspot_question_id = $question_id ";
 | 
						|
        Database::query($sql);
 | 
						|
        Event::addEvent(
 | 
						|
            LOG_QUESTION_RESULT_DELETE,
 | 
						|
            LOG_EXERCISE_ATTEMPT_QUESTION_ID,
 | 
						|
            $exe_id . '-' . $question_id,
 | 
						|
            null,
 | 
						|
            null,
 | 
						|
            $course_code,
 | 
						|
            $session_id
 | 
						|
        );
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param $exe_id
 | 
						|
     * @param $objExercise
 | 
						|
     * @return array
 | 
						|
     */
 | 
						|
    public static function getAnsweredQuestionsFromAttempt($exe_id, $objExercise)
 | 
						|
    {
 | 
						|
        $attempt_list = self::getAllExerciseEventByExeId($exe_id);
 | 
						|
        $exercise_result = array();
 | 
						|
        if (!empty($attempt_list)) {
 | 
						|
            foreach ($attempt_list as $question_id => $options) {
 | 
						|
                foreach ($options as $item) {
 | 
						|
                    $question_obj = Question::read($item['question_id']);
 | 
						|
                    switch ($question_obj->type) {
 | 
						|
                        case FILL_IN_BLANKS:
 | 
						|
                            $item['answer'] = $objExercise->fill_in_blank_answer_to_string($item['answer']);
 | 
						|
                            break;
 | 
						|
                        case HOT_SPOT:
 | 
						|
                            //var_dump($item['answer']);
 | 
						|
                            break;
 | 
						|
                    }
 | 
						|
 | 
						|
                    if ($item['answer'] != '0' && !empty($item['answer'])) {
 | 
						|
                        $exercise_result[] = $question_id;
 | 
						|
                        break;
 | 
						|
                    }
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
        return $exercise_result;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * User logs in for the first time to a course
 | 
						|
     * @param $course_code
 | 
						|
     * @param $user_id
 | 
						|
     * @param $session_id
 | 
						|
     */
 | 
						|
    public static function event_course_login($courseId, $user_id, $session_id)
 | 
						|
    {
 | 
						|
        $course_tracking_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
 | 
						|
        $time = api_get_datetime();
 | 
						|
 | 
						|
        $courseId = Database::escape_string($courseId);
 | 
						|
        $user_id = Database::escape_string($user_id);
 | 
						|
        $session_id = Database::escape_string($session_id);
 | 
						|
 | 
						|
        $sql = "INSERT INTO $course_tracking_table(c_id, user_id, login_course_date, logout_course_date, counter, session_id)
 | 
						|
                  VALUES('".$courseId."', '".$user_id."', '$time', '$time', '1', '".$session_id."')";
 | 
						|
        Database::query($sql);
 | 
						|
 | 
						|
        //Course catalog stats modifications see #4191
 | 
						|
        CourseManager::update_course_ranking(null, null, null, null, true, false);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * For the sake of genericity, this function is a switch.
 | 
						|
     * It's called by EventsDispatcher and fires the good function
 | 
						|
     * with the good require_once.
 | 
						|
     *
 | 
						|
     * @param string $event_name
 | 
						|
     * @param array $params
 | 
						|
     */
 | 
						|
    public static function event_send_mail($event_name, $params)
 | 
						|
    {
 | 
						|
        EventsMail::send_mail($event_name, $params);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Internal function checking if the mail was already sent from that user to that user
 | 
						|
     * @param string $event_name
 | 
						|
     * @param int $user_from
 | 
						|
     * @param int $user_to
 | 
						|
     * @return boolean
 | 
						|
     */
 | 
						|
    public static function check_if_mail_already_sent($event_name, $user_from, $user_to = null)
 | 
						|
    {
 | 
						|
        if ($user_to == null) {
 | 
						|
            $sql = 'SELECT COUNT(*) as total FROM '.Database::get_main_table(TABLE_EVENT_SENT).'
 | 
						|
                    WHERE user_from = '.$user_from.' AND event_type_name = "'.$event_name.'"';
 | 
						|
        } else {
 | 
						|
            $sql = 'SELECT COUNT(*) as total FROM '.Database::get_main_table(TABLE_EVENT_SENT).'
 | 
						|
                    WHERE user_from = '.$user_from.' AND user_to = '.$user_to.' AND event_type_name = "'.$event_name.'"';
 | 
						|
        }
 | 
						|
        $result = Database::store_result(Database::query($sql), 'ASSOC');
 | 
						|
        return $result[0]["total"];
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     *
 | 
						|
     * Filter EventEmailTemplate Filters see the main/inc/conf/events.conf.dist.php
 | 
						|
     *
 | 
						|
     */
 | 
						|
 | 
						|
    /**
 | 
						|
     * Basic template event message filter (to be used by other filters as default)
 | 
						|
     * @param array $values (passing by reference)
 | 
						|
     * @return boolean True if everything is OK, false otherwise
 | 
						|
     */
 | 
						|
    function event_send_mail_filter_func(&$values)
 | 
						|
    {
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * user_registration - send_mail filter
 | 
						|
     * @param array $values (passing by reference)
 | 
						|
     * @return boolean True if everything is OK, false otherwise
 | 
						|
     */
 | 
						|
    function user_registration_event_send_mail_filter_func(&$values)
 | 
						|
    {
 | 
						|
        $res = _event_send_mail_filter_func($values);
 | 
						|
        // proper logic for this filter
 | 
						|
        return $res;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * portal_homepage_edited - send_mail filter
 | 
						|
     * @param array $values (passing by reference)
 | 
						|
     * @return boolean True if everything is OK, false otherwise
 | 
						|
     */
 | 
						|
    function portal_homepage_edited_event_send_mail_filter_func(&$values)
 | 
						|
    {
 | 
						|
        $res = self::event_send_mail_filter_func($values);
 | 
						|
        // proper logic for this filter
 | 
						|
        return $res;
 | 
						|
    }
 | 
						|
}
 | 
						|
 |