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+<?php
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+
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+// $Id: index.php 8216 2006-11-3 18:03:15 NushiFirefox $
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+/*
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+==============================================================================
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+ Dokeos - elearning and course management software
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+
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+ Copyright (c) 2006 Bart Mollet <bart.mollet@hogent.be>
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+
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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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+
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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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+
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+ See the GNU General Public License for more details.
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+
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+ Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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+==============================================================================
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+*/
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+/**
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+==============================================================================
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+* This class provides some functions for statistics
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+* @package dokeos.statistics
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+==============================================================================
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+*/
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+
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+
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+class Statistics
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+{
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+ /**
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+ * Converts a number of bytes in a formatted string
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+ * @param int $size
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+ * @return string Formatted file size
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+ */
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+ function make_size_string($size) {
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+ if ($size < pow(2,10)) return $size." bytes";
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+ if ($size >= pow(2,10) && $size < pow(2,20)) return round($size / pow(2,10), 0)." KB";
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+ if ($size >= pow(2,20) && $size < pow(2,30)) return round($size / pow(2,20), 1)." MB";
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+ if ($size > pow(2,30)) return round($size / pow(2,30), 2)." GB";
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+ }
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+ /**
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+ * Count courses
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+ * @param bool $curriculum True if only curriculum-courses should be counted
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+ * @param $string faculty Code of a faculty. Default: count all courses.
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+ * @return int Number of courses counted
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+ */
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+ function count_courses($curriculum, $faculty = NULL, $count_invisible_courses = true)
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+ {
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+ $course_table = Database :: get_main_table(MAIN_COURSE_TABLE);
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+ $sql = "SELECT COUNT(*) AS number FROM ".$course_table." ";
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+ if ($curriculum)
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+ {
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+ $sql .= "WHERE visual_code NOT LIKE 'ALG%'";
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+ }
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+ else
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+ {
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+ $sql .= "WHERE visual_code LIKE 'ALG%'";
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+ }
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+ if (isset ($faculty))
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+ {
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+ $sql .= " AND category_code = '$faculty'";
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+ }
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+
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+ $res = api_sql_query($sql, __FILE__, __LINE__);
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+ $obj = mysql_fetch_object($res);
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+ return $obj->number;
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+ }
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+ /**
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+ * Count users
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+ * @param int $status COURSEMANAGER or STUDENT
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+ * @param $string faculty Code of a faculty. Default: count all students.
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+ * @return int Number of students counted
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+ */
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+ function count_users($status, $faculty = NULL, $count_invisible_courses = true)
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+ {
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+ $course_user_table = Database :: get_main_table(MAIN_COURSE_USER_TABLE);
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+ $course_table = Database :: get_main_table(MAIN_COURSE_TABLE);
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+ $sql = "SELECT COUNT(DISTINCT(cu.user_id)) AS number FROM $course_user_table cu, $course_table c WHERE cu.status = $status AND cu.course_code = c.code";
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+ if (isset ($faculty))
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+ {
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+ $sql = "SELECT COUNT(DISTINCT(cu.user_id)) AS number FROM $course_user_table cu, $course_table c WHERE cu.status = $status AND c.code = cu.course_code AND c.category_code = '$faculty'";
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+ }
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+ $res = api_sql_query($sql, __FILE__, __LINE__);
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+ $obj = mysql_fetch_object($res);
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+ return $obj->number;
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+ }
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+ /**
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+ * Get all faculties
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+ * @return array All faculties (code => name)
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+ */
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+ function get_faculties()
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+ {
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+ $category_table = Database :: get_main_table(MAIN_CATEGORY_TABLE);
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+ $sql = "SELECT * FROM $category_table ORDER BY tree_pos";
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+ $res = api_sql_query($sql, __FILE__, __LINE__);
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+ $faculties = array ();
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+ while ($fac = mysql_fetch_object($res))
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+ {
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+ $faculties[$fac->code] = $fac->name;
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+ }
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+ return $faculties;
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+ }
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+ /**
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+ * Rescale data
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+ * @param array $data The data that should be rescaled
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+ * @param int $max The maximum value in the rescaled data (default = 500);
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+ * @return array The rescaled data, same key as $data
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+ */
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+ function rescale($data, $max = 500)
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+ {
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+ $data_max = 1;
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+ foreach ($data as $index => $value)
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+ {
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+ $data_max = ($data_max < $value ? $value : $data_max);
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+ }
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+ reset($data);
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+ $result = array ();
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+ $delta = $max / $data_max;
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+ foreach ($data as $index => $value)
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+ {
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+ $result[$index] = (int) round($value * $delta);
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+ }
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+ return $result;
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+ }
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+ /**
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+ * Show statistics
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+ * @param string $title The title
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+ * @param array $stats
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+ * @param bool $show_total
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+ * @param bool $is_file_size
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+ */
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+ function print_stats($title, $stats, $show_total = true, $is_file_size = false)
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+ {
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+ $total = 0;
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+ $data = Statistics::rescale($stats);
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+ echo '<table class="statTable data_table" cellspacing="0" cellpadding="3">
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+ <tr><th colspan="4" class="statHeader">'.$title.'</th></tr>';
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+ $i = 0;
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+ foreach($stats as $subtitle => $number)
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+ {
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+ $total += $number;
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+ }
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+ foreach ($stats as $subtitle => $number)
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+ {
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+ $i = $i % 13;
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+ $short_subtitle = str_replace(get_lang('Statistics_Departement'),'',$subtitle);
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+ $short_subtitle = str_replace(get_lang('Statistics_Central_Administration'),'',$short_subtitle);
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+ $short_subtitle = trim($short_subtitle);
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+ if (strlen($subtitle) > 20)
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+ {
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+ $short_subtitle = '<acronym title="'.$subtitle.'">'.substr($short_subtitle, 0, 17).'...</acronym>';
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+ }
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+ if(!$is_file_size)
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+ {
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+ $number_label = number_format($number, 0, ',', '.');
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+ }
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+ else
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+ {
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+ $number_label = Statistics::make_size_string($number);
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+ }
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+ echo '<tr class="row_'.($i%2 == 0 ? 'odd' : 'even').'">
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+ <td width="150">'.$short_subtitle.'</td>
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+ <td width="550">
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+ <img src="../img/bar_1u.gif" width="'.$data[$subtitle].'" height="10"/>
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+ </td>
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+ <td align="right">'.$number_label.'</td>
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+ <td align="right"> '.number_format(100*$number/$total, 1, ',', '.').'%</td>
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+ </tr>';
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+ $i ++;
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+ }
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+ if ($show_total)
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+ {
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+ if(!$is_file_size)
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+ {
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+ $total_label = number_format($total, 0, ',', '.');
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+ }
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+ else
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+ {
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+ $total_label = Statistics::make_size_string($total);
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+ }
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+ echo '<tr><th colspan="4" align="right">'.get_lang('Total').': '.$total_label.'</td></tr>';
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+ }
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+ echo '</table>';
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+ }
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+ /**
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+ * Show statistics about the number of curriculum courses per year
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+ */
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+ function print_curriculum_courses_stats_by_year()
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+ {
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+ $faculties = Statistics::get_faculties();
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+ for($year = CURRENT_ACADEMIC_YEAR; $year >= FIRST_ACADEMIC_YEAR; $year--)
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+ {
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+ $cdb = 'cdb'.($year != CURRENT_ACADEMIC_YEAR ? $year : '');
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+ $sql = 'SELECT c.category_code AS cat_code,COUNT(c.code) AS number_of_courses FROM dokeos_main.course c, '.$cdb.'.vak v WHERE c.visual_code = v.vak GROUP BY c.category_code';
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $result = array();
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+ while($obj = mysql_fetch_object($res))
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+ {
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+ $result[$faculties[$obj->cat_code]] = $obj->number_of_courses;
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+ }
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+ Statistics::print_stats(get_lang('Statistics_NumberOfCourses').$year.'-'.($year+1),$result,true);
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+ }
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+ }
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+ /**
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+ * Show statistics about the number of curriculum courses per year per department
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+ */
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+ function print_curriculum_courses_stats_by_category()
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+ {
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+ $result = array();
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+ $faculties = Statistics::get_faculties();
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+ for($year = CURRENT_ACADEMIC_YEAR; $year >= FIRST_ACADEMIC_YEAR; $year--)
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+ {
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+ $cdb = 'cdb'.($year != CURRENT_ACADEMIC_YEAR ? $year : '');
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+ $sql = 'SELECT c.category_code AS cat_code,COUNT(c.code) AS number_of_courses FROM dokeos_main.course c, '.$cdb.'.vak v WHERE c.visual_code = v.vak GROUP BY c.category_code';
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ while($obj = mysql_fetch_object($res))
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+ {
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+ $result[$faculties[$obj->cat_code]][$year.'-'.($year+1)] = $obj->number_of_courses;
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+ }
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+ }
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+ foreach($result as $faculty => $stats)
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+ {
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+ Statistics::print_stats(get_lang('Statistics_CurriculumCourses').$faculty,$stats,true);
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+ }
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+ }
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+ /**
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+ * Show some stats about the number of logins
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+ * @param string $type month, hour or day
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+ */
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+ function print_login_stats($type)
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+ {
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+ switch($type)
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+ {
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+ case 'month':
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+ $sql = "SELECT DATE_FORMAT( login_date, '%Y %b' ) AS stat_date , count( login_id ) AS number_of_logins FROM dokeos_stats.track_e_login GROUP BY stat_date ORDER BY login_date ";
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+ break;
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+ case 'hour':
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+ $sql = "SELECT DATE_FORMAT( login_date, '%H' ) AS stat_date , count( login_id ) AS number_of_logins FROM dokeos_stats.track_e_login GROUP BY stat_date ORDER BY stat_date ";
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+ break;
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+ case 'day':
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+ $sql = "SELECT DATE_FORMAT( login_date, '%a' ) AS stat_date , count( login_id ) AS number_of_logins FROM dokeos_stats.track_e_login GROUP BY stat_date ORDER BY DATE_FORMAT( login_date, '%w' ) ";
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+ break;
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+ }
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $result = array();
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+ while($obj = mysql_fetch_object($res))
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+ {
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+ $result[$obj->stat_date] = $obj->number_of_logins;
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+ }
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+ Statistics::print_stats(get_lang('Statistics_count_logins'),$result,true);
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+ }
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+ /**
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+ * Print the number of resent logins (last minute, hour, day, month)
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+ */
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+ function print_recent_login_stats()
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+ {
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+ $total_logins = 0;
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+
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+ $sql['... ' & get_lang('Statistics_the_past_minute')] = "SELECT count(DISTINCT access_user_id) AS number FROM dokeos_stats.track_e_lastaccess WHERE DATE_ADD(access_date, INTERVAL 1 MINUTE) >= NOW()";
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+ $sql['... ' & get_lang('Statistics_the_past_hour')] = "SELECT count(DISTINCT access_user_id) AS number FROM dokeos_stats.track_e_lastaccess WHERE DATE_ADD(access_date, INTERVAL 1 HOUR) >= NOW()";
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+ $sql['... ' & get_lang('Statistics_the_past_day')] = "SELECT count(DISTINCT access_user_id) AS number FROM dokeos_stats.track_e_lastaccess WHERE DATE_ADD(access_date, INTERVAL 1 DAY) >= NOW()";
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+ $sql['... ' & get_lang('Statistics_the_past_month')] = "SELECT count(DISTINCT access_user_id) AS number FROM dokeos_stats.track_e_lastaccess WHERE DATE_ADD(access_date, INTERVAL 1 MONTH) >= NOW()";
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+
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+
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+ foreach($sql as $index => $query)
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+ {
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+ #
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+ #$index.': ';
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+ $res = api_sql_query($query,__FILE__,__LINE__);
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+ $obj = mysql_fetch_object($res);
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+
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+ /*
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+ * echo number_format($obj->number, 0, ',', '.');
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+ * echo '<br/>';
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+ */
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+ $total_logins += number_format($obj->number, 0, ',', '.');
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+ }
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+
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+
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+ Statistics::print_stats(get_lang('Statistics_Number_of_active_users_on_dokeos'),$total_logins,true);
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+ }
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+ /**
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+ * Show some stats about the accesses to the different course tools
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+ */
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+ function print_tool_stats()
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+ {
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+ $tools = array('announcement','assignment','calendar_event','chat','conference','course_description','document','dropbox','group','learnpath','link','quiz','student_publication','user','bb_forum');
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+ $sql = "SELECT access_tool, count( access_id ) AS number_of_logins FROM dokeos_stats.track_e_access WHERE access_tool IN ('".implode("','",$tools)."') GROUP BY access_tool ";
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $result = array();
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+ while($obj = mysql_fetch_object($res))
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+ {
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+ $result[$obj->access_tool] = $obj->number_of_logins;
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+ }
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+ Statistics::print_stats(get_lang('Statistics_Acces_to_coursemodules_hits'),$result,true);
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+ $sql = "SELECT access_tool, count( access_id ) AS number_of_logins FROM dokeos_stats.track_e_lastaccess WHERE access_tool IN ('".implode("','",$tools)."') GROUP BY access_tool ";
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $result = array();
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+ while($obj = mysql_fetch_object($res))
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+ {
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+ $result[$obj->access_tool] = $obj->number_of_logins;
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+ }
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+ Statistics::print_stats(get_lang('Statistics_Acces_to_coursemodules_use'),$result,true);
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+ }
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+ /**
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+ * Show some stats about the access to old course tools
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+ */
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+ function print_access_to_old_courses_stats()
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+ {
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+ $sql = "SELECT count( access_id ) AS number,
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+ IF( LOCATE( 'ALG', access_cours_code ) ,
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+ 'Algemene cursus',
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+ IF( LENGTH( access_cours_code ) =14, 'Curr. 2004-2005', 'Curr. 2005-2006' )
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+ ) AS type
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+ FROM dokeos_stats.track_e_access
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+ GROUP BY TYPE";
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $result = array();
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+ while($obj = mysql_fetch_object($res))
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+ {
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+ $result[$obj->type] = $obj->number;
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+ }
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+ Statistics::print_stats(get_lang('Statistics_Acces_to_old_curriculum_courses'),$result,true);
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+ }
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+
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+
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+
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+ /**
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+ * Shows the number of users having their picture uploaded in Dokeos.
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+ */
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+ function print_user_pictures_stats()
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+ {
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+ $sql = "SELECT COUNT(*) AS n FROM dokeos_main.user";
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $count1 = mysql_fetch_object($res);
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+ $sql = "SELECT COUNT(*) AS n FROM dokeos_main.user WHERE picture_uri != ''";
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+ $res = api_sql_query($sql,__FILE__,__LINE__);
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+ $count2 = mysql_fetch_object($res);
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+ Statistics::print_stats(get_lang('user_who_have_picture_in_dokeos'),'('.number_format(($count2->n/$count1->n*100), 0, ',', '.').'%)',true);
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+
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+ # echo $count2->n.' ' & get_lang('Statistics_user_who_have_picture_in_dokeos') & '('.number_format(($count2->n/$count1->n*100), 0, ',', '.').'%)';
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+ }
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+
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+ /**
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+ * Shows statistics about the time of last visit to each course.
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+ */
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+ function print_course_last_visit()
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+ {
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+ $columns[0] = 'access_cours_code';
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+ $columns[1] = 'access_date';
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+
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+ $sql_order[SORT_ASC] = 'ASC';
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+ $sql_order[SORT_DESC] = 'DESC';
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+
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+ $per_page = isset($_GET['per_page']) ? $_GET['per_page'] : 10;
|
|
|
+ $page_nr = isset($_GET['page_nr']) ? $_GET['page_nr'] : 1;
|
|
|
+ $column = isset($_GET['column']) ? $_GET['column'] : 0;
|
|
|
+ $date_diff = isset($_GET['date_diff']) ? $_GET['date_diff'] : 60;
|
|
|
+ $direction = isset($_GET['direction']) ? $_GET['direction'] : SORT_ASC;
|
|
|
+ ?>
|
|
|
+ <form method="get" action="index.php">
|
|
|
+ <input type="hidden" name="action" value="courselastvisit"/>
|
|
|
+ <input type="text" name="date_diff" value="<?php echo $date_diff; ?>"/>
|
|
|
+ <input type="submit" value="<?php echo get_lang('Search'); ?>"/>
|
|
|
+ </form>
|
|
|
+ <?php
|
|
|
+ $sql = "SELECT * FROM dokeos_stats.track_e_lastaccess GROUP BY access_cours_code HAVING access_cours_code <> '' AND DATEDIFF( NOW() , access_date ) > ". $date_diff;
|
|
|
+ $res = api_sql_query($sql,__FILE__,__LINE__);
|
|
|
+ $number_of_courses = mysql_num_rows($res);
|
|
|
+ $sql .= ' ORDER BY '.$columns[$column].' '.$sql_order[$direction];
|
|
|
+ $from = ($page_nr -1) * $per_page;
|
|
|
+ $sql .= ' LIMIT '.$from.','.$per_page;
|
|
|
+ echo Get_lang('Statistics_Last_login_more_than').$date_diff.get_lang('Statistics_Days_ago');
|
|
|
+ $res = api_sql_query($sql, __FILE__, __LINE__);
|
|
|
+ if (mysql_num_rows($res) > 0)
|
|
|
+ {
|
|
|
+ $courses = array ();
|
|
|
+ while ($obj = mysql_fetch_object($res))
|
|
|
+ {
|
|
|
+ $course = array ();
|
|
|
+ $course[]= '<a href="http://dokeos.hogent.be/courses/'.$obj->access_cours_code.'">'.$obj->access_cours_code.' <a>';
|
|
|
+ $course[] = $obj->access_date;
|
|
|
+ $courses[] = $course;
|
|
|
+ }
|
|
|
+
|
|
|
+ $table_header[] = array ('Coursecode', true);
|
|
|
+ $table_header[] = array ('Last login', true);
|
|
|
+ HoGent::display_page_navigation($number_of_courses,$per_page, $page_nr,array_merge($parameters,$_GET));
|
|
|
+ Display :: display_sortable_table($table_header, $courses, array ('column'=>$column,'direction'=>$direction), array (), $parameters);
|
|
|
+ HoGent::display_page_navigation($number_of_courses,$per_page, $page_nr,array_merge($parameters,$_GET));
|
|
|
+ foreach(array_merge($parameters,$_GET) as $id => $value)
|
|
|
+ {
|
|
|
+ if ($id!='selectall'){
|
|
|
+ $link .= $id.'='.$value.'&';
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ echo get_lang('NoSearchResults');
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+?>
|