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- <?php
- /* For licensing terms, see /license.txt */
- require_once api_get_path(LIBRARY_PATH).'pchart/pData.class.php';
- require_once api_get_path(LIBRARY_PATH).'pchart/pChart.class.php';
- require_once api_get_path(LIBRARY_PATH).'pchart/pCache.class.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/gradebookitem.class.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/evaluation.class.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/result.class.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/linkfactory.class.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/flatview_data_generator.class.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
- require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/category.class.php';
- /**
- * 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();
- $html = '<li class="widget color-orange" id="intro">
- <div class="widget-head">
- <h3>'.get_lang('EvaluationsGraph').'</h3>
- <div class="widget-actions"><a onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;" href="index.php?action=disable_block&path='.$this->path.'">'.Display::return_icon('close.gif',get_lang('Close')).'</a></div>
- </div>
- <div class="widget-content" align="center">';
- if (empty($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>
- </li>';
- $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);
- $users = get_all_users($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
- $data_set = new pData;
- $data_set->AddPoint($max, "Max");
- $data_set->AddPoint($avg, "Avg");
- $data_set->AddPoint($min, "Min");
- $data_set->AddPoint($items, "Items");
- $data_set->SetXAxisName(get_lang('EvaluationName'));
- $data_set->SetYAxisName(get_lang('Percentage'));
- $data_set->AddAllSeries();
- $data_set->RemoveSerie("Items");
- $data_set->SetAbsciseLabelSerie("Items");
- $graph_id = $this->user_id.'StudentEvaluationGraph';
- $cache = new pCache();
- // the graph id
- $data = $data_set->GetData();
- if ($cache->IsInCache($graph_id, $data)) {
- //if we already created the img
- $img_file = $cache->GetHash($graph_id, $data);
- } else {
- // Initialise the graph
- $angle = -30;
- $test = new pChart($this->bg_width,$this->bg_height);
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
- $test = $test->fixHeightByRotation(
- $data_set->GetData(),
- $data_set->GetDataDescription(),
- $angle
- );
- $test->setGraphArea(50, 30, $this->bg_width-75, $this->bg_height - 75);
- $test->drawFilledRoundedRectangle(
- 7,
- 7,
- $this->bg_width-20,
- $test->YSize - 20,
- 5,
- 240,
- 240,
- 240
- );
- $test->drawRoundedRectangle(
- 5,
- 5,
- $this->bg_width-18,
- $test->YSize - 18,
- 5,
- 230,
- 230,
- 230
- );
- $test->drawGraphArea(255,255,255,TRUE);
- $test->setFixedScale(0,100,5);
- $test->drawScale(
- $data_set->GetData(),
- $data_set->GetDataDescription(),
- SCALE_ADDALL,
- 150,
- 150,
- 150,
- TRUE,
- $angle,
- 2,
- TRUE
- );
- $test->setColorPalette(0,105,221,34);
- $test->setColorPalette(1,255,135,30);
- $test->setColorPalette(2,255,0,0);
- $test->drawGrid(4,TRUE,230,230,230,50);
- // Draw the 0 line
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',6);
- $test->drawTreshold(0,143,55,72,TRUE,TRUE);
- // Draw the bar graph
- $test->drawOverlayBarGraph($data_set->GetData(),$data_set->GetDataDescription(), 90);
- // Finish the graph
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
- $test->drawLegend($this->bg_width-80,20,$data_set->GetDataDescription(),255,255,255);
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',10);
- //$test->drawTitle(50,22,$course_code,50,50,50,185);
- $test->setColorPalette(0,50,50,50);
- $test->setColorPalette(1,50,50,50);
- $test->setColorPalette(2,50,50,50);
- $test->writeValues($data_set->GetData(),$data_set->GetDataDescription(),array("Min", "Max", "Avg"));
- $cache->WriteToCache($graph_id, $data_set->GetData(), $test);
- ob_start();
- $test->Stroke();
- ob_end_clean();
- $img_file = $cache->GetHash($graph_id, $data_set->GetData());
- }
- if (!empty($img_file)) {
- $graphs[$course_code] = '<img src="'.api_get_path(WEB_ARCHIVE_PATH).$img_file.'">';
- }
- }
- }
- } // 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);
- $users = get_all_users($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
- $data_set = new pData;
- $data_set->AddPoint($max, "Max");
- $data_set->AddPoint($avg, "Avg");
- $data_set->AddPoint($min, "Min");
- $data_set->AddPoint($items, "Items");
- $data_set->SetXAxisName(get_lang('EvaluationName'));
- $data_set->SetYAxisName(get_lang('Percentage'));
- $data_set->AddAllSeries();
- $data_set->RemoveSerie("Items");
- $data_set->SetAbsciseLabelSerie("Items");
- $graph_id = $this->user_id.'StudentEvaluationGraph';
- $cache = new pCache();
- // the graph id
- $data = $data_set->GetData();
- if ($cache->IsInCache($graph_id, $data)) {
- //if we already created the img
- $img_file = $cache->GetHash($graph_id, $data);
- } else {
- // Initialise the graph
- $angle = -30;
- $test = new pChart($this->bg_width, $this->bg_height);
- $test->setFontProperties(api_get_path(LIBRARY_PATH) . 'pchart/fonts/tahoma.ttf', 8);
- $test->fixHeightByRotation(
- $data_set->GetData(),
- $data_set->GetDataDescription(),
- $angle
- );
- $test->setGraphArea(50, 30, $this->bg_width - 75, $this->bg_height - 75);
- $test->drawFilledRoundedRectangle(
- 7,
- 7,
- $this->bg_width - 20,
- $test->YSize - 20,
- 5,
- 240,
- 240,
- 240
- );
- $test->drawRoundedRectangle(
- 5,
- 5,
- $this->bg_width - 18,
- $test->YSize - 18,
- 5,
- 230,
- 230,
- 230
- );
- $test->drawGraphArea(255,255,255,TRUE);
- $test->setFixedScale(0,100,5);
- $test->drawScale(
- $data_set->GetData(),
- $data_set->GetDataDescription(),
- SCALE_ADDALL,
- 150,
- 150,
- 150,
- TRUE,
- $angle,
- 2,
- TRUE
- );
- $test->setColorPalette(0,105,221,34);
- $test->setColorPalette(1,255,135,30);
- $test->setColorPalette(2,255,0,0);
- $test->drawGrid(4,TRUE,230,230,230,50);
- // Draw the 0 line
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',6);
- $test->drawTreshold(0,143,55,72,TRUE,TRUE);
- // Draw the bar graph
- $test->drawOverlayBarGraph($data_set->GetData(),$data_set->GetDataDescription(), 100);
- // Finish the graph
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',8);
- $test->drawLegend($this->bg_width-80,20,$data_set->GetDataDescription(),255,255,255);
- $test->setFontProperties(api_get_path(LIBRARY_PATH).'pchart/fonts/tahoma.ttf',10);
- $test->setColorPalette(0,50,50,50);
- $test->setColorPalette(1,50,50,50);
- $test->setColorPalette(2,50,50,50);
- $test->writeValues($data_set->GetData(),$data_set->GetDataDescription(),array("Min", "Max", "Avg"));
- $cache->WriteToCache($graph_id, $data_set->GetData(), $test);
- ob_start();
- $test->Stroke();
- ob_end_clean();
- $img_file = $cache->GetHash($graph_id, $data_set->GetData());
- }
- if (!empty($img_file)) {
- $courses_graph[$course_code] = '<img src="'.api_get_path(WEB_ARCHIVE_PATH).$img_file.'">';
- }
- }
- }
- }
- if (!empty($courses_graph)) {
- $graphs[$session_id] = $courses_graph;
- }
- }
- }
- return $graphs;
- }
- }
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