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