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307 lines
14 KiB
307 lines
14 KiB
<?php
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/* For licensing terms, see /license.txt */
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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 into dashboard interface from plattform
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* @package chamilo.dashboard
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* @author Christian Fasanando
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*/
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/**
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* required files for getting data
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*/
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require_once api_get_path(LIBRARY_PATH).'pchart/pData.class.php';
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require_once api_get_path(LIBRARY_PATH).'pchart/pChart.class.php';
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require_once api_get_path(LIBRARY_PATH).'pchart/pCache.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/gradebookitem.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/evaluation.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/result.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/linkfactory.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/flatview_data_generator.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/category.class.php';
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/**
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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 (e.g: controller = "BlockEvaluationGraph"), so dashboard controller will be instantiate it
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* @package chamilo.dashboard
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*/
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class BlockEvaluationGraph extends Block {
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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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$this->path = 'block_evaluation_graph';
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$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($user_id)) {
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//$this->courses = CourseManager::get_real_course_list();
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/*if (api_is_platform_admin()) {
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$this->courses = CourseManager::get_real_course_list();
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$this->sessions = SessionManager::get_sessions_list();
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} else {*/
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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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/**
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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($user_id) {
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$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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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 = '<li class="widget color-orange" id="intro">
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<div class="widget-head">
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<h3>'.get_lang('EvaluationsGraph').'</h3>
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<div class="widget-actions"><a onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;" href="index.php?action=disable_block&path='.$this->path.'">'.Display::return_icon('close.gif',get_lang('Close')).'</a></div>
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</div>
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<div class="widget-content" align="center">';
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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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</li>';
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$data['column'] = $column;
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$data['content_html'] = $html;
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return $data;
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}
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/**
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* This method return a graph containing informations about evaluations inside base courses, it's used inside get_block method for showing it inside dashboard interface
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* @return string img html
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*/
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public function get_evaluations_base_courses_graph() {
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$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 = 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[] = $evaluation['avg'];
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}
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// Dataset definition
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$data_set = new pData;
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$data_set->AddPoint($max, "Max");
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$data_set->AddPoint($avg, "Avg");
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$data_set->AddPoint($min, "Min");
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$data_set->AddPoint($items, "Items");
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$data_set->SetXAxisName(get_lang('EvaluationName'));
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$data_set->SetYAxisName(get_lang('Percentage'));
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$data_set->AddAllSeries();
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$data_set->RemoveSerie("Items");
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$data_set->SetAbsciseLabelSerie("Items");
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$graph_id = $this->user_id.'StudentEvaluationGraph';
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$cache = new pCache();
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// the graph id
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$data = $data_set->GetData();
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if ($cache->IsInCache($graph_id, $data)) {
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//if we already created the img
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$img_file = $cache->GetHash($graph_id, $data);
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} else {
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// Initialise the graph
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$test = new pChart($this->bg_width,$this->bg_height);
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
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$test->setGraphArea(50,30,$this->bg_width-75,$this->bg_height-75);
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$test->drawFilledRoundedRectangle(7,7,$this->bg_width-20,$this->bg_height-20,5,240,240,240);
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$test->drawRoundedRectangle(5,5,$this->bg_width-18,$this->bg_height-18,5,230,230,230);
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$test->drawGraphArea(255,255,255,TRUE);
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$test->setFixedScale(0,100,5);
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$test->drawScale($data_set->GetData(),$data_set->GetDataDescription(),SCALE_ADDALL,150,150,150,TRUE,0,2,TRUE);
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$test->setColorPalette(0,105,221,34);
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$test->setColorPalette(1,255,135,30);
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$test->setColorPalette(2,255,0,0);
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$test->drawGrid(4,TRUE,230,230,230,50);
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// Draw the 0 line
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',6);
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$test->drawTreshold(0,143,55,72,TRUE,TRUE);
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// Draw the bar graph
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$test->drawOverlayBarGraph($data_set->GetData(),$data_set->GetDataDescription(), 90);
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// Finish the graph
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
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$test->drawLegend($this->bg_width-80,20,$data_set->GetDataDescription(),255,255,255);
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',10);
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//$test->drawTitle(50,22,$course_code,50,50,50,185);
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$test->setColorPalette(0,50,50,50);
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$test->setColorPalette(1,50,50,50);
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$test->setColorPalette(2,50,50,50);
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$test->writeValues($data_set->GetData(),$data_set->GetDataDescription(),array("Min", "Max", "Avg"));
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$cache->WriteToCache($graph_id, $data_set->GetData(), $test);
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ob_start();
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$test->Stroke();
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ob_end_clean();
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$img_file = $cache->GetHash($graph_id, $data_set->GetData());
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}
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if (!empty($img_file)) {
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$graphs[$course_code] = '<img src="'.api_get_path(WEB_ARCHIVE_PATH).$img_file.'">';
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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 $graphs;
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}
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/**
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* This method return a graph containing informations about evaluations inside courses in sessions, it's used inside get_block method for showing it inside dashboard interface
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* @return string img html
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*/
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public function get_evaluations_courses_in_sessions_graph() {
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$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 = 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[] = $evaluation['avg'];
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}
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// Dataset definition
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$data_set = new pData;
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$data_set->AddPoint($max, "Max");
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$data_set->AddPoint($avg, "Avg");
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$data_set->AddPoint($min, "Min");
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$data_set->AddPoint($items, "Items");
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$data_set->SetXAxisName(get_lang('EvaluationName'));
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$data_set->SetYAxisName(get_lang('Percentage'));
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$data_set->AddAllSeries();
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$data_set->RemoveSerie("Items");
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$data_set->SetAbsciseLabelSerie("Items");
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$graph_id = $this->user_id.'StudentEvaluationGraph';
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$cache = new pCache();
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// the graph id
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$data = $data_set->GetData();
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if ($cache->IsInCache($graph_id, $data)) {
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//if we already created the img
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$img_file = $cache->GetHash($graph_id, $data);
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} else {
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// Initialise the graph
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$test = new pChart($this->bg_width,$this->bg_height);
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
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$test->setGraphArea(50,30,$this->bg_width-75,$this->bg_height-75);
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$test->drawFilledRoundedRectangle(7,7,$this->bg_width-20,$this->bg_height-20,5,240,240,240);
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$test->drawRoundedRectangle(5,5,$this->bg_width-18,$this->bg_height-18,5,230,230,230);
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$test->drawGraphArea(255,255,255,TRUE);
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$test->setFixedScale(0,100,5);
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$test->drawScale($data_set->GetData(),$data_set->GetDataDescription(),SCALE_ADDALL,150,150,150,TRUE,0,2,TRUE);
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$test->setColorPalette(0,105,221,34);
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$test->setColorPalette(1,255,135,30);
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$test->setColorPalette(2,255,0,0);
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$test->drawGrid(4,TRUE,230,230,230,50);
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// Draw the 0 line
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',6);
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$test->drawTreshold(0,143,55,72,TRUE,TRUE);
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// Draw the bar graph
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$test->drawOverlayBarGraph($data_set->GetData(),$data_set->GetDataDescription(), 100);
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// Finish the graph
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
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$test->drawLegend($this->bg_width-80,20,$data_set->GetDataDescription(),255,255,255);
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$test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',10);
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$test->setColorPalette(0,50,50,50);
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$test->setColorPalette(1,50,50,50);
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$test->setColorPalette(2,50,50,50);
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$test->writeValues($data_set->GetData(),$data_set->GetDataDescription(),array("Min", "Max", "Avg"));
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$cache->WriteToCache($graph_id, $data_set->GetData(), $test);
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ob_start();
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$test->Stroke();
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ob_end_clean();
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$img_file = $cache->GetHash($graph_id, $data_set->GetData());
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}
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if (!empty($img_file)) {
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$courses_graph[$course_code] = '<img src="'.api_get_path(WEB_ARCHIVE_PATH).$img_file.'">';
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}
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}
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}
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}
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if (!empty($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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} |