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468 lines
20 KiB
468 lines
20 KiB
<?php
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/* For licensing terms, see /license.txt */
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use CpChart\Classes\pData as pData;
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use CpChart\Classes\pImage as pImage;
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use CpChart\Classes\pCache as pCache;
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/**
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* Class BlockEvaluationGraph
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* This class is used like controller for this evaluations graph block plugin,
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* the class name must be registered inside path.info file
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* (e.g: controller = "BlockEvaluationGraph"),
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* so dashboard controller will be instantiate it
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*
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* This file is part of evaluation graph block plugin for dashboard,
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* it should be required inside dashboard controller for showing it
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* into dashboard interface from platform
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*
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* @package chamilo.dashboard
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* @author Christian Fasanando
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*/
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class BlockEvaluationGraph extends Block
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{
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private $user_id;
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private $courses;
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private $sessions;
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private $path;
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private $permission = array(DRH, SESSIONADMIN);
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/**
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* Constructor
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*/
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public function __construct($user_id)
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{
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$this->path = 'block_evaluation_graph';
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$this->user_id = $user_id;
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$this->bg_width = 450;
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$this->bg_height = 350;
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if ($this->is_block_visible_for_user($user_id)) {
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if (!api_is_session_admin()) {
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$this->courses = CourseManager::get_courses_followed_by_drh($user_id);
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}
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$this->sessions = SessionManager::get_sessions_followed_by_drh($user_id);
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}
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}
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/**
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* This method check if a user is allowed to see the block inside dashboard interface
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* @param int User id
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* @return bool Is block visible for user
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*/
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public function is_block_visible_for_user($user_id)
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{
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$user_info = api_get_user_info($user_id);
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$user_status = $user_info['status'];
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$is_block_visible_for_user = false;
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if (UserManager::is_admin($user_id) || in_array($user_status, $this->permission)) {
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$is_block_visible_for_user = true;
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}
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return $is_block_visible_for_user;
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}
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/**
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* This method return content html containing information about sessions and its position for showing it inside dashboard interface
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* it's important to use the name 'get_block' for beeing used from dashboard controller
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* @return array column and content html
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*/
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public function get_block()
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{
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global $charset;
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$column = 1;
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$data = array();
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$evaluations_base_courses_graph = $this->get_evaluations_base_courses_graph();
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$evaluations_courses_in_sessions_graph = $this->get_evaluations_courses_in_sessions_graph();
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$html = '<div class="panel panel-default" id="intro">
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<div class="panel-heading">
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'.get_lang('EvaluationsGraph').'
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<div class="pull-right"><a class="btn btn-danger btn-xs" onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;" href="index.php?action=disable_block&path='.$this->path.'">
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<i class="fa fa-times"></i>
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</a></div>
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</div>
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<div class="panel-body">';
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if (empty($evaluations_base_courses_graph) && empty($evaluations_courses_in_sessions_graph)) {
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$html .= '<p>'.api_convert_encoding(get_lang('GraphicNotAvailable'),'UTF-8').'</p>';
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} else {
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// display evaluations base courses graph
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if (!empty($evaluations_base_courses_graph)) {
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foreach ($evaluations_base_courses_graph as $course_code => $img_html) {
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$html .= '<div><strong>'.$course_code.'</strong></div>';
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$html .= $img_html;
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}
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}
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// display evaluations base courses graph
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if (!empty($evaluations_courses_in_sessions_graph)) {
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foreach ($evaluations_courses_in_sessions_graph as $session_id => $courses) {
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$session_name = api_get_session_name($session_id);
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$html .= '<div><strong>'.$session_name.':'.get_lang('Evaluations').'</strong></div>';
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foreach ($courses as $course_code => $img_html) {
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$html .= '<div><strong>'.$course_code.'</strong></div>';
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$html .= $img_html;
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}
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}
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}
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}
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$html .= '</div>
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</div>';
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$data['column'] = $column;
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$data['content_html'] = $html;
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return $data;
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}
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/**
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* This method return a graph containing informations about evaluations
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* inside base courses, it's used inside get_block method for showing
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* it inside dashboard interface
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* @return string img html
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*/
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public function get_evaluations_base_courses_graph()
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{
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$graphs = array();
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if (!empty($this->courses)) {
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$courses_code = array_keys($this->courses);
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foreach ($courses_code as $course_code) {
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$cats = Category::load(null, null, $course_code, null, null, null, false);
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if (isset($cats) && isset($cats[0])) {
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$alleval = $cats[0]->get_evaluations(null, true, $course_code);
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$alllinks = $cats[0]->get_links(null, true);
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$users = GradebookUtils::get_all_users($alleval, $alllinks);
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$datagen = new FlatViewDataGenerator ($users, $alleval, $alllinks);
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$evaluation_sumary = $datagen->get_evaluation_sumary_results();
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if (!empty($evaluation_sumary)) {
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$items = array_keys($evaluation_sumary);
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$max = $min = $avg = array();
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foreach ($evaluation_sumary as $evaluation) {
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$max[] = $evaluation['max'];
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$min[] = !empty($evaluation['min']) ? $evaluation['min'] : 0;
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$avg[] = $evaluation['avg'];
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}
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// Dataset definition
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$dataSet = new pData();
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$dataSet->addPoints($min, 'Serie3');
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$dataSet->addPoints($avg, 'Serie2');
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$dataSet->addPoints($max, 'Serie1');
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$dataSet->addPoints($items, 'Labels');
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$dataSet->setSerieDescription('Serie1', get_lang('Max'));
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$dataSet->setSerieDescription('Serie2', get_lang('Avg'));
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$dataSet->setSerieDescription('Serie3', get_lang('Min'));
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$dataSet->setAbscissa('Labels');
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$dataSet->setAbscissaName(get_lang('EvaluationName'));
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$dataSet->normalize(100, '%');
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$dataSet->loadPalette(api_get_path(SYS_CODE_PATH) . 'palettes/pchart/default.color', true);
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// Cache definition
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$cachePath = api_get_path(SYS_ARCHIVE_PATH);
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$myCache = new pCache(array('CacheFolder' => substr($cachePath, 0, strlen($cachePath) - 1)));
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$chartHash = $myCache->getHash($dataSet);
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if ($myCache->isInCache($chartHash)) {
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$imgPath = api_get_path(SYS_ARCHIVE_PATH) . $chartHash;
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$myCache->saveFromCache($chartHash, $imgPath);
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$imgPath = api_get_path(WEB_ARCHIVE_PATH) . $chartHash;
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} else {
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/* Create the pChart object */
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$widthSize = $this->bg_width;
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$heightSize = $this->bg_height;
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$fontSize = 8;
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$angle = 50;
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$myPicture = new pImage($widthSize, $heightSize, $dataSet);
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/* Turn of Antialiasing */
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$myPicture->Antialias = false;
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/* Add a border to the picture */
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$myPicture->drawRectangle(
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0,
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0,
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$widthSize - 1,
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$heightSize - 1,
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array(
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'R' => 0,
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'G' => 0,
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'B' => 0
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)
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);
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/* Set the default font */
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$myPicture->setFontProperties(
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array(
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'FontName' => api_get_path(SYS_FONTS_PATH) . 'opensans/OpenSans-Regular.ttf',
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'FontSize' => 10
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)
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);
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/* Do NOT Write the chart title */
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/* Define the chart area */
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$myPicture->setGraphArea(
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50,
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30,
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$widthSize - 20,
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$heightSize - 100
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);
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/* Draw the scale */
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$scaleSettings = array(
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'GridR' => 200,
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'GridG' => 200,
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'GridB' => 200,
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'DrawSubTicks' => true,
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'CycleBackground' => true,
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'Mode' => SCALE_MODE_MANUAL,
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'ManualScale' => array(
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'0' => array(
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'Min' => 0,
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'Max' => 100,
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)
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),
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'LabelRotation' => $angle,
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);
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$myPicture->drawScale($scaleSettings);
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/* Turn on shadow computing */
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$myPicture->setShadow(
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true,
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array(
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'X' => 1,
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'Y' => 1,
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'R' => 0,
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'G' => 0,
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'B' => 0,
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'Alpha' => 10
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)
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);
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/* Draw the chart */
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$myPicture->setShadow(
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true,
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array(
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'X' => 1,
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'Y' => 1,
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'R' => 0,
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'G' => 0,
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'B' => 0,
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'Alpha' => 10
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)
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);
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$settings = array(
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'DisplayValues' => true,
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'DisplaySize' => $fontSize,
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'DisplayR' => 0,
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'DisplayG' => 0,
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'DisplayB' => 0,
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'DisplayOrientation' => ORIENTATION_HORIZONTAL,
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'Gradient' => false,
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'Surrounding' => 30,
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'InnerSurrounding' => 25
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);
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$myPicture->drawStackedBarChart($settings);
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$legendSettings = array(
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'Mode' => LEGEND_HORIZONTAL,
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'Style' => LEGEND_NOBORDER,
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);
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$myPicture->drawLegend($widthSize / 2, 15, $legendSettings);
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/* Write and save into cache */
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$myCache->writeToCache($chartHash, $myPicture);
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$imgPath = api_get_path(SYS_ARCHIVE_PATH) . $chartHash;
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$myCache->saveFromCache($chartHash, $imgPath);
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$imgPath = api_get_path(WEB_ARCHIVE_PATH) . $chartHash;
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}
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if (!empty($imgPath)) {
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$courses_graph[$course_code] = '<img src="' . $imgPath . '">';
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}
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}
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}
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} // end for
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}
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return $graphs;
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}
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/**
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* This method return a graph containing information about evaluations
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* inside courses in sessions, it's used inside get_block method for
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* showing it inside dashboard interface
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* @return string img html
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*/
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public function get_evaluations_courses_in_sessions_graph()
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{
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$graphs = array();
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if (!empty($this->sessions)) {
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$session_ids = array_keys($this->sessions);
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foreach ($session_ids as $session_id) {
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$courses_code = array_keys(Tracking::get_courses_list_from_session($session_id));
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$courses_graph = array();
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foreach ($courses_code as $course_code) {
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$cats = Category::load(null, null, $course_code, null, null, $session_id);
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if (isset($cats) && isset($cats[0])) {
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$alleval = $cats[0]->get_evaluations(null, true, $course_code);
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$alllinks = $cats[0]->get_links(null, true);
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$users = GradebookUtils::get_all_users($alleval, $alllinks);
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$datagen = new FlatViewDataGenerator ($users, $alleval, $alllinks);
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$evaluation_sumary = $datagen->get_evaluation_sumary_results();
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if (!empty($evaluation_sumary)) {
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$items = array_keys($evaluation_sumary);
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$max = $min = $avg = array();
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foreach ($evaluation_sumary as $evaluation) {
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$max[] = $evaluation['max'];
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$min[] = $evaluation['min'];
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$avg[] = $evaluation['avg'];
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}
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// Dataset definition
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$dataSet = new pData();
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$dataSet->addPoints($min, 'Serie3');
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$dataSet->addPoints($avg, 'Serie2');
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$dataSet->addPoints($max, 'Serie1');
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$dataSet->addPoints($items, 'Labels');
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$dataSet->setSerieDescription('Serie1', get_lang('Max'));
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$dataSet->setSerieDescription('Serie2', get_lang('Avg'));
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$dataSet->setSerieDescription('Serie3', get_lang('Min'));
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$dataSet->setAbscissa('Labels');
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$dataSet->setAbscissaName(get_lang('EvaluationName'));
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$dataSet->normalize(100, '%');
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$dataSet->loadPalette(api_get_path(SYS_CODE_PATH) . 'palettes/pchart/default.color', true);
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// Cache definition
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$cachePath = api_get_path(SYS_ARCHIVE_PATH);
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$myCache = new pCache(array('CacheFolder' => substr($cachePath, 0, strlen($cachePath) - 1)));
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$chartHash = $myCache->getHash($dataSet);
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if ($myCache->isInCache($chartHash)) {
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$imgPath = api_get_path(SYS_ARCHIVE_PATH) . $chartHash;
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$myCache->saveFromCache($chartHash, $imgPath);
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$imgPath = api_get_path(WEB_ARCHIVE_PATH) . $chartHash;
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} else {
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/* Create the pChart object */
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$widthSize = $this->bg_width;
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$heightSize = $this->bg_height;
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$fontSize = 8;
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$angle = 50;
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$myPicture = new pImage($widthSize, $heightSize, $dataSet);
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/* Turn of Antialiasing */
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$myPicture->Antialias = false;
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/* Add a border to the picture */
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$myPicture->drawRectangle(
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0,
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0,
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$widthSize - 1,
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$heightSize - 1,
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array(
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'R' => 0,
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'G' => 0,
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'B' => 0
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)
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);
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/* Set the default font */
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$myPicture->setFontProperties(
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array(
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'FontName' => api_get_path(SYS_FONTS_PATH) . 'opensans/OpenSans-Regular.ttf',
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'FontSize' => 10
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)
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);
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/* Do NOT Write the chart title */
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/* Define the chart area */
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$myPicture->setGraphArea(50, 30, $widthSize - 20, $heightSize - 100);
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/* Draw the scale */
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$scaleSettings = array(
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'GridR' => 200,
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'GridG' => 200,
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'GridB' => 200,
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'DrawSubTicks' => true,
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'CycleBackground' => true,
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'Mode' => SCALE_MODE_MANUAL,
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'ManualScale' => array(
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'0' => array(
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'Min' => 0,
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'Max' => 100,
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)
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),
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'LabelRotation' => $angle,
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);
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$myPicture->drawScale($scaleSettings);
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/* Turn on shadow computing */
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$myPicture->setShadow(
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true,
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array(
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'X' => 1,
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'Y' => 1,
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'R' => 0,
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'G' => 0,
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'B' => 0,
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'Alpha' => 10
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)
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);
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/* Draw the chart */
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$myPicture->setShadow(
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true,
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array(
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'X' => 1,
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'Y' => 1,
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'R' => 0,
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'G' => 0,
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'B' => 0,
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'Alpha' => 10
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)
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);
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$settings = array(
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'DisplayValues' => true,
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'DisplaySize' => $fontSize,
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'DisplayR' => 0,
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'DisplayG' => 0,
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'DisplayB' => 0,
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'DisplayOrientation' => ORIENTATION_HORIZONTAL,
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'Gradient' => false,
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'Surrounding' => 30,
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'InnerSurrounding' => 25
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);
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$myPicture->drawStackedBarChart($settings);
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$legendSettings = array(
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'Mode' => LEGEND_HORIZONTAL,
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'Style' => LEGEND_NOBORDER,
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);
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$myPicture->drawLegend($widthSize / 2, 15, $legendSettings);
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/* Write and save into cache */
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$myCache->writeToCache($chartHash, $myPicture);
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$imgPath = api_get_path(SYS_ARCHIVE_PATH) . $chartHash;
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$myCache->saveFromCache($chartHash, $imgPath);
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$imgPath = api_get_path(WEB_ARCHIVE_PATH) . $chartHash;
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}
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if (!empty($imgPath)) {
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$courses_graph[$course_code] = '<img src="' . $imgPath . '">';
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}
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}
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}
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}
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if (!empty($courses_graph)) {
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$graphs[$session_id] = $courses_graph;
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}
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}
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}
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return $graphs;
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}
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}
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