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376 lines
13 KiB
376 lines
13 KiB
<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2008 Dokeos SPRL
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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* ExerciseResult class: This class allows to instantiate an object of type ExerciseResult
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* which allows you to export exercises results in multiple presentation forms
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* @package dokeos.exercise
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* @author Yannick Warnier
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* @version $Id: $
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*/
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if(!class_exists('ExerciseResult')):
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class ExerciseResult
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{
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private $exercises_list = array(); //stores the list of exercises
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private $results = array(); //stores the results
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/**
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* constructor of the class
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*/
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public function ExerciseResult($get_questions=false,$get_answers=false)
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{
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//nothing to do
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/*
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$this->exercise_list = array();
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$this->readExercisesList();
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if($get_questions)
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{
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foreach($this->exercises_list as $exe)
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{
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$this->exercises_list['questions'] = $this->getExerciseQuestionList($exe['id']);
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}
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}
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*/
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}
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/**
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* Reads exercises information (minimal) from the data base
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* @param boolean Whether to get only visible exercises (true) or all of them (false). Defaults to false.
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* @return array A list of exercises available
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*/
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private function _readExercisesList($only_visible = false)
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{
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$return = array();
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$TBL_EXERCISES = Database::get_course_table(TABLE_QUIZ_TEST);
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$sql="SELECT id,title,type,random,active FROM $TBL_EXERCISES";
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if($only_visible)
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{
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$sql.= ' WHERE active=1';
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}
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$sql .= ' ORDER BY title';
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$result=Database::query($sql,__FILE__,__LINE__);
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// if the exercise has been found
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while($row=Database::fetch_array($result,'ASSOC'))
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{
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$return[] = $row;
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}
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// exercise not found
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return $return;
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}
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/**
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* Gets the questions related to one exercise
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* @param integer Exercise ID
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*/
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private function _readExerciseQuestionsList($e_id)
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{
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$return = array();
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$TBL_EXERCISE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
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$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
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$sql="SELECT q.id, q.question, q.ponderation, eq.question_order, q.type, q.picture " .
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" FROM $TBL_EXERCISE_QUESTION eq, $TBL_QUESTIONS q " .
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" WHERE eq.question_id=q.id AND eq.exercice_id='".Database::escape_string($e_id)."' " .
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" ORDER BY eq.question_order";
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$result=Database::query($sql,__FILE__,__LINE__);
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// fills the array with the question ID for this exercise
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// the key of the array is the question position
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while($row=Database::fetch_array($result,'ASSOC'))
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{
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$return[] = $row;
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}
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return true;
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}
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/**
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* Gets the results of all students (or just one student if access is limited)
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* @param string The document path (for HotPotatoes retrieval)
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* @param integer User ID. Optional. If no user ID is provided, we take all the results. Defauts to null
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*/
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function _getExercisesReporting($document_path,$user_id=null)
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{
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$return = array();
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$TBL_EXERCISES = Database::get_course_table(TABLE_QUIZ_TEST);
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$TBL_EXERCISE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
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$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
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$TBL_USER = Database::get_main_table(TABLE_MAIN_USER);
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$TBL_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
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$TBL_ITEM_PROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
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$TBL_TRACK_EXERCISES = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
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$TBL_TRACK_HOTPOTATOES = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_HOTPOTATOES);
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$TBL_TRACK_ATTEMPT = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
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$cid = api_get_course_id();
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if(empty($user_id))
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{
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//get all results (ourself and the others) as an admin should see them
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//AND exe_user_id <> $_user['user_id'] clause has been removed
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$sql="SELECT ".(api_is_western_name_order() ? "CONCAT(firstname,' ',lastname)" : "CONCAT(lastname,' ',firstname)").", ce.title, te.exe_result ,
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te.exe_weighting, UNIX_TIMESTAMP(te.exe_date),te.exe_id, user.email, user.user_id
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FROM $TBL_EXERCISES ce , $TBL_TRACK_EXERCISES te, $TBL_USER user
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WHERE te.exe_exo_id = ce.id AND user_id=te.exe_user_id AND te.exe_cours_id='$cid'
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ORDER BY te.exe_cours_id ASC, ce.title ASC, te.exe_date ASC";
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$hpsql="SELECT ".(api_is_western_name_order() ? "CONCAT(tu.firstname,' ',tu.lastname)" : "CONCAT(tu.lastname,' ',tu.firstname)").", tth.exe_name,
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tth.exe_result , tth.exe_weighting, UNIX_TIMESTAMP(tth.exe_date), tu.email, tu.user_id
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FROM $TBL_TRACK_HOTPOTATOES tth, $TBL_USER tu
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WHERE tu.user_id=tth.exe_user_id AND tth.exe_cours_id = '".$cid."'
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ORDER BY tth.exe_cours_id ASC, tth.exe_date ASC";
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}
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else
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{ // get only this user's results
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$sql="SELECT '',ce.title, te.exe_result , te.exe_weighting, " .
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"UNIX_TIMESTAMP(te.exe_date),te.exe_id
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FROM $TBL_EXERCISES ce , $TBL_TRACK_EXERCISES te
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WHERE te.exe_exo_id = ce.id AND te.exe_user_id='".Database::escape_string($user_id)."' AND te.exe_cours_id='".Database::escape_string($cid)."'
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ORDER BY te.exe_cours_id ASC, ce.title ASC, te.exe_date ASC";
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$hpsql="SELECT '',exe_name, exe_result , exe_weighting, UNIX_TIMESTAMP(exe_date)
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FROM $TBL_TRACK_HOTPOTATOES
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WHERE exe_user_id = '".Database::escape_string($user_id)."' AND exe_cours_id = '".Database::escape_string($cid)."'
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ORDER BY exe_cours_id ASC, exe_date ASC";
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}
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$results=getManyResultsXCol($sql,8);
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$hpresults=getManyResultsXCol($hpsql,7);
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$NoTestRes = 0;
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$NoHPTestRes = 0;
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$j=0;
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//Print the results of tests
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if(is_array($results))
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{
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for($i = 0; $i < sizeof($results); $i++)
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{
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$return[$i] = array();
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$id = $results[$i][5];
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$mailid = $results[$i][6];
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$user = $results[$i][0];
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$test = $results[$i][1];
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$dt = strftime(get_lang('dateTimeFormatLong'),$results[$i][4]);
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$res = $results[$i][2];
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if(empty($user_id))
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{
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$user = $results[$i][0];
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$return[$i]['user'] = $user;
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$return[$i]['user_id'] = $results[$i][7];
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}
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$return[$i]['title'] = $test;
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$return[$i]['time'] = format_locale_date(get_lang('dateTimeFormatLong'),$results[$i][4]);
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$return[$i]['result'] = $res;
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$return[$i]['max'] = $results[$i][3];
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$j=$i;
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}
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}
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$j++;
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// Print the Result of Hotpotatoes Tests
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if(is_array($hpresults))
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{
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for($i = 0; $i < sizeof($hpresults); $i++)
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{
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$return[$j+$i] = array();
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$title = GetQuizName($hpresults[$i][1],$document_path);
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if ($title =='')
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{
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$title = basename($hpresults[$i][1]);
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}
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if(empty($user_id))
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{
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$return[$j+$i]['user'] = $hpresults[$i][0];
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$return[$j+$i]['user_id'] = $results[$i][6];
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}
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$return[$j+$i]['title'] = $title;
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$return[$j+$i]['time'] = strftime(get_lang('dateTimeFormatLong'),$hpresults[$i][4]);
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$return[$j+$i]['result'] = $hpresults[$i][2];
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$return[$j+$i]['max'] = $hpresults[$i][3];
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}
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}
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$this->results = $return;
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return true;
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}
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/**
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* Exports the complete report as a CSV file
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* @param string Document path inside the document tool
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* @param integer Optional user ID
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* @param boolean Whether to include user fields or not
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* @return boolean False on error
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*/
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public function exportCompleteReportCSV($document_path='',$user_id=null, $export_user_fields)
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{
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global $charset;
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$this->_getExercisesReporting($document_path,$user_id);
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$filename = 'exercise_results_'.date('YmdGis').'.csv';
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if(!empty($user_id))
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{
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$filename = 'exercise_results_user_'.$user_id.'_'.date('YmdGis').'.csv';
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}
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$data = '';
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//build the results
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//titles
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if(!empty($this->results[0]['user']))
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{
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$data .= get_lang('User').';';
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}
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if($export_user_fields)
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{
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//show user fields section with a big th colspan that spans over all fields
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$extra_user_fields = UserManager::get_extra_fields(0,0,5,'ASC',false);
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$num = count($extra_user_fields);
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foreach($extra_user_fields as $field)
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{
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$data .= '"'.str_replace("\r\n",' ',api_html_entity_decode(strip_tags($field[3]), ENT_QUOTES, $charset)).'";';
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}
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$display_extra_user_fields = true;
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}
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$data .= get_lang('Title').';';
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$data .= get_lang('Date').';';
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$data .= get_lang('Results').';';
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$data .= get_lang('Weighting').';';
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$data .= "\n";
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//results
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foreach($this->results as $row)
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{
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if(!empty($row['user']))
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{
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$data .= str_replace("\r\n",' ',api_html_entity_decode(strip_tags($row['user']), ENT_QUOTES, $charset)).';';
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}
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if($export_user_fields)
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{
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//show user fields data, if any, for this user
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$user_fields_values = UserManager::get_extra_user_data(intval($row['user_id']),false,false);
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foreach($user_fields_values as $value)
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{
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$data .= '"'.str_replace('"','""',api_html_entity_decode(strip_tags($value), ENT_QUOTES, $charset)).'";';
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}
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}
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$data .= str_replace("\r\n",' ',api_html_entity_decode(strip_tags($row['title']), ENT_QUOTES, $charset)).';';
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$data .= str_replace("\r\n",' ',$row['time']).';';
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$data .= str_replace("\r\n",' ',$row['result']).';';
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$data .= str_replace("\r\n",' ',$row['max']).';';
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$data .= "\n";
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}
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//output the results
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$len = strlen($data);
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header('Content-type: application/octet-stream');
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header('Content-Type: application/force-download');
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header('Content-length: '.$len);
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if (preg_match("/MSIE 5.5/", $_SERVER['HTTP_USER_AGENT']))
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{
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header('Content-Disposition: filename= '.$filename);
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}
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else
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{
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header('Content-Disposition: attachment; filename= '.$filename);
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}
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if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE'))
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{
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header('Pragma: ');
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header('Cache-Control: ');
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header('Cache-Control: public'); // IE cannot download from sessions without a cache
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}
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header('Content-Description: '.$filename);
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header('Content-transfer-encoding: binary');
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echo $data;
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return true;
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}
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/**
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* Exports the complete report as an XLS file
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* @return boolean False on error
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*/
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public function exportCompleteReportXLS($document_path='',$user_id=null, $export_user_fields)
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{
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global $charset;
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$this->_getExercisesReporting($document_path,$user_id);
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$filename = 'exercise_results_'.date('YmdGis').'.xls';
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if(!empty($user_id))
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{
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$filename = 'exercise_results_user_'.$user_id.'_'.date('YmdGis').'.xls';
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} //build the results
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require_once(api_get_path(LIBRARY_PATH).'pear/Spreadsheet_Excel_Writer/Writer.php');
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$workbook = new Spreadsheet_Excel_Writer();
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$workbook->send($filename);
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$worksheet =& $workbook->addWorksheet('Report '.date('YmdGis'));
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$line = 0;
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$column = 0; //skip the first column (row titles)
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if(!empty($this->results[0]['user']))
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{
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$worksheet->write($line,$column,get_lang('User'));
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$column++;
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}
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if($export_user_fields)
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{
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//show user fields section with a big th colspan that spans over all fields
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$extra_user_fields = UserManager::get_extra_fields(0,0,5,'ASC',false);
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//show the fields names for user fields
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foreach($extra_user_fields as $field)
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{
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$worksheet->write($line,$column,api_html_entity_decode(strip_tags($field[3]), ENT_QUOTES, $charset));
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$column++;
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}
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}
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$worksheet->write($line,$column,get_lang('Title'));
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$column++;
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$worksheet->write($line,$column,get_lang('Date'));
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$column++;
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$worksheet->write($line,$column,get_lang('Results'));
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$column++;
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$worksheet->write($line,$column,get_lang('Weighting'));
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$line++;
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foreach($this->results as $row)
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{
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$column = 0;
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if(!empty($row['user']))
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{
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$worksheet->write($line,$column,api_html_entity_decode(strip_tags($row['user']), ENT_QUOTES, $charset));
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$column++;
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}
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//show user fields data, if any, for this user
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$user_fields_values = UserManager::get_extra_user_data(intval($row['user_id']),false,false);
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foreach($user_fields_values as $value)
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{
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$worksheet->write($line,$column,api_html_entity_decode(strip_tags($value), ENT_QUOTES, $charset));
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$column++;
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}
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$worksheet->write($line,$column,api_html_entity_decode(strip_tags($row['title']), ENT_QUOTES, $charset));
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$column++;
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$worksheet->write($line,$column,$row['time']);
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$column++;
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$worksheet->write($line,$column,$row['result']);
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$column++;
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$worksheet->write($line,$column,$row['max']);
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$line++;
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}
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//output the results
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$workbook->close();
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return true;
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}
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}
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endif;
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?>
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