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759 lines
27 KiB
759 lines
27 KiB
<?php
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/* For licensing terms, see /license.txt */
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use ChamiloSession as Session;
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/**
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* Class GradebookDataGenerator
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* Class to select, sort and transform object data into array data,
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* used for the general gradebook view.
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*
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* @author Bert Steppé
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*/
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class GradebookDataGenerator
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{
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// Sorting types constants
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const GDG_SORT_TYPE = 1;
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const GDG_SORT_NAME = 2;
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const GDG_SORT_DESCRIPTION = 4;
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const GDG_SORT_WEIGHT = 8;
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const GDG_SORT_DATE = 16;
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const GDG_SORT_ASC = 32;
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const GDG_SORT_DESC = 64;
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const GDG_SORT_ID = 128;
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public $userId;
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public $hidePercentage = false;
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public $items;
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public $preLoadDataKey;
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private $evals_links;
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/**
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* @param array $cats
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* @param array $evals
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* @param array $links
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*/
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public function __construct($cats = [], $evals = [], $links = [])
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{
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$allcats = isset($cats) ? $cats : [];
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$allevals = isset($evals) ? $evals : [];
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$alllinks = isset($links) ? $links : [];
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// if we are in the root category and if there are sub categories
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// display only links depending of the root category and not link that belongs
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// to a sub category https://support.chamilo.org/issues/6602
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$tabLinkToDisplay = $alllinks;
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if (count($allcats) > 0) {
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// get sub categories id
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$tabCategories = [];
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for ($i = 0; $i < count($allcats); $i++) {
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$tabCategories[] = $allcats[$i]->get_id();
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}
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// dont display links that belongs to a sub category
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$tabLinkToDisplay = [];
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for ($i = 0; $i < count($alllinks); $i++) {
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if (!in_array($alllinks[$i]->get_category_id(), $tabCategories)) {
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$tabLinkToDisplay[] = $alllinks[$i];
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}
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}
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}
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// merge categories, evaluations and links
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$this->items = array_merge($allcats, $allevals, $tabLinkToDisplay);
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$this->evals_links = array_merge($allevals, $tabLinkToDisplay);
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$this->userId = api_get_user_id();
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}
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/**
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* Get total number of items (rows).
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*
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* @return int
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*/
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public function get_total_items_count()
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{
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return count($this->items);
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}
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/**
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* Get actual array data.
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*
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* @param int $count
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*
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* @return array 2-dimensional array - each array contains the elements:
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* 0: cat/eval/link object
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* 1: item name
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* 2: description
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* 3: weight
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* 4: date
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* 5: student's score (if student logged in)
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*/
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public function get_data(
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$sorting = 0,
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$start = 0,
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$count = null,
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$ignore_score_color = false,
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$studentList = [],
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$loadStats = true
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) {
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// do some checks on count, redefine if invalid value
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if (!isset($count)) {
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$count = count($this->items) - $start;
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}
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if ($count < 0) {
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$count = 0;
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}
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$allitems = $this->items;
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usort($allitems, ['GradebookDataGenerator', 'sort_by_name']);
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$userId = $this->userId;
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// Get selected items
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$visibleItems = array_slice($allitems, $start, $count);
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$userCount = !empty($studentList) ? count($studentList) : 0;
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// Generate the data to display
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$data = [];
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$allowStats = api_get_configuration_value('allow_gradebook_stats');
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$scoreDisplay = ScoreDisplay::instance();
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$defaultData = Session::read($this->preLoadDataKey);
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$model = ExerciseLib::getCourseScoreModel();
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/** @var GradebookItem $item */
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foreach ($visibleItems as $item) {
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$row = [];
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$row[] = $item;
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$row[] = $item->get_name();
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// display the 2 first line of description and all description
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// on mouseover (https://support.chamilo.org/issues/6588)
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$row[] = '<span title="'.api_remove_tags_with_space($item->get_description()).'">'.
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api_get_short_text_from_html($item->get_description(), 160).'</span>';
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$row[] = $item->get_weight();
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$item->setStudentList($studentList);
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$itemType = get_class($item);
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switch ($itemType) {
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case 'Evaluation':
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// Items inside a category.
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$resultColumn = $this->build_result_column(
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$userId,
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$item,
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$ignore_score_color
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);
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$row[] = $resultColumn['display'];
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$row['result_score'] = $resultColumn['score'];
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$row['result_score_weight'] = $resultColumn['score_weight'];
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// Best
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['best'])) {
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$best = $defaultData[$item->get_id()]['best'];
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} else {
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$best = $this->buildBestResultColumn($item);
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}
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if (empty($model)) {
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$row['best'] = $best['display'];
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$row['best_score'] = $best['score'];
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// Average
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['average'])) {
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$average = $defaultData[$item->get_id()]['average'];
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} else {
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$average = $this->buildBestResultColumn($item);
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}
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$row['average'] = $average['display'];
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$row['average_score'] = $average['score'];
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// Ranking
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$ranking = $this->buildRankingColumn($item, $userId, $userCount);
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$row['ranking'] = $ranking['display'];
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$row['ranking_score'] = $ranking['score'];
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}
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$row[] = $item;
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break;
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case 'ExerciseLink':
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/** @var ExerciseLink $item */
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// Category.
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$result = $this->build_result_column(
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$userId,
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$item,
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$ignore_score_color,
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true
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);
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$row[] = $result['display'];
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$row['result_score'] = $result['score'];
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$row['result_score_weight'] = $result['score'];
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if (empty($model)) {
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// Best
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['best'])) {
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$best = $defaultData[$item->get_id()]['best'];
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} else {
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$best = $this->buildBestResultColumn($item);
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}
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$row['best'] = $best['display'];
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$row['best_score'] = $best['score'];
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$rankingStudentList = [];
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$invalidateResults = false;
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// Average
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['average'])) {
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$average = $defaultData[$item->get_id()]['average'];
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} else {
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$average = $this->buildAverageResultColumn($item);
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}
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$row['average'] = $average['display'];
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$row['average_score'] = $average['score'];
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// Ranking
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if ($allowStats) {
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// Ranking
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if (isset($defaultData[$item->get_id()]) &&
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isset($defaultData[$item->get_id()]['ranking'])
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) {
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$rankingStudentList = $defaultData[$item->get_id()]['ranking'];
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$invalidateResults = $defaultData[$item->get_id()]['ranking_invalidate'];
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$score = AbstractLink::getCurrentUserRanking($userId, $rankingStudentList);
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} else {
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if (!empty($studentList)) {
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foreach ($studentList as $user) {
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$score = $this->build_result_column(
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$user['user_id'],
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$item,
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$ignore_score_color,
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true
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);
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if (!empty($score['score'][0])) {
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$invalidateResults = false;
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}
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$rankingStudentList[$user['user_id']] = $score['score'][0];
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}
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$defaultData[$item->get_id()]['ranking'] = $rankingStudentList;
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$defaultData[$item->get_id()]['ranking_invalidate'] = $invalidateResults;
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Session::write($this->preLoadDataKey, $defaultData);
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}
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$score = AbstractLink::getCurrentUserRanking($userId, $rankingStudentList);
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}
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} else {
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if (!empty($studentList)) {
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$session_id = api_get_session_id();
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$evals = [];
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$links = [];
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if ('C' === $item->get_item_type()) {
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$evals = $item->get_evaluations(null);
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$links = $item->get_links(null);
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}
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foreach ($studentList as $user) {
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$ressum = 0;
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$weightsum = 0;
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$bestResult = 0;
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if (!empty($evals)) {
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foreach ($evals as $eval) {
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$evalres = $eval->calc_score($user['user_id'], null);
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$eval->setStudentList($studentList);
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if (isset($evalres) && 0 != $eval->get_weight()) {
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$evalweight = $eval->get_weight();
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$weightsum += $evalweight;
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if (!empty($evalres[1])) {
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$ressum += $evalres[0] / $evalres[1] * $evalweight;
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}
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if ($ressum > $bestResult) {
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$bestResult = $ressum;
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}
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} else {
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if (0 != $eval->get_weight()) {
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$evalweight = $eval->get_weight();
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$weightsum += $evalweight;
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}
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}
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}
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}
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if (!empty($links)) {
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foreach ($links as $link) {
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$link->setStudentList($studentList);
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if ($session_id) {
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$link->set_session_id($session_id);
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}
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$linkres = $link->calc_score($user['user_id'], null);
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if (!empty($linkres) && 0 != $link->get_weight()) {
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$linkweight = $link->get_weight();
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$link_res_denom = 0 == $linkres[1] ? 1 : $linkres[1];
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$weightsum += $linkweight;
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$ressum += $linkres[0] / $link_res_denom * $linkweight;
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if ($ressum > $bestResult) {
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$bestResult = $ressum;
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}
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} else {
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// Adding if result does not exists
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if (0 != $link->get_weight()) {
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$linkweight = $link->get_weight();
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$weightsum += $linkweight;
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}
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}
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}
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}
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if (!empty($ressum)) {
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$invalidateResults = false;
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}
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$rankingStudentList[$user['user_id']] = $ressum;
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}
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}
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$score = AbstractLink::getCurrentUserRanking($userId, $rankingStudentList);
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}
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$row['ranking'] = $scoreDisplay->display_score(
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$score,
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SCORE_DIV,
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SCORE_BOTH,
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true,
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true
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);
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if ($invalidateResults) {
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$row['ranking'] = null;
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}
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}
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break;
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default:
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// Category.
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$result = $this->build_result_column(
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$userId,
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$item,
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$ignore_score_color,
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true
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);
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$row[] = $result['display'];
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$row['result_score'] = $result['score'];
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$row['result_score_weight'] = $result['score'];
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if (empty($model)) {
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// Best
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['best'])) {
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$best = $defaultData[$item->get_id()]['best'];
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} else {
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$best = $this->buildBestResultColumn($item);
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}
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$row['best'] = $best['display'];
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$row['best_score'] = $best['score'];
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$rankingStudentList = [];
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$invalidateResults = true;
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// Average
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['average'])) {
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$average = $defaultData[$item->get_id()]['average'];
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} else {
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$average = $this->buildAverageResultColumn($item);
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}
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$row['average'] = $average['display'];
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$row['average_score'] = $average['score'];
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// Ranking
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if (isset($defaultData[$item->get_id()]) && isset($defaultData[$item->get_id()]['ranking'])) {
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$rankingStudentList = $defaultData[$item->get_id()]['ranking'];
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$invalidateResults = $defaultData[$item->get_id()]['ranking_invalidate'];
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$invalidateResults = false;
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$score = AbstractLink::getCurrentUserRanking($userId, $rankingStudentList);
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} else {
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if (!empty($studentList)) {
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foreach ($studentList as $user) {
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$score = $this->build_result_column(
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$user['user_id'],
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$item,
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$ignore_score_color,
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true
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);
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if (!empty($score['score'][0])) {
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$invalidateResults = false;
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}
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$rankingStudentList[$user['user_id']] = $score['score'][0];
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}
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}
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$score = AbstractLink::getCurrentUserRanking($userId, $rankingStudentList);
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}
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$row['ranking'] = $scoreDisplay->display_score(
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$score,
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SCORE_DIV,
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SCORE_BOTH,
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true,
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true
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);
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if ($invalidateResults) {
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$row['ranking'] = null;
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}
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}
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break;
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}
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$data[] = $row;
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}
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return $data;
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}
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/**
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* Returns the link to the certificate generation, if the score is enough, otherwise
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* returns an empty string. This only works with categories.
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*
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* @param object Item
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*
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* @return string
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*/
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public function get_certificate_link($item)
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{
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if (is_a($item, 'Category')) {
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if ($item->is_certificate_available(api_get_user_id())) {
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$link = '<a href="'.Category::getUrl().'export_certificate=1&cat='.$item->get_id().'&user='.api_get_user_id().'">'.
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get_lang('Certificate').'</a>';
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return $link;
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}
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}
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return '';
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}
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/**
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* @param GradebookItem $item1
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* @param GradebookItem $item2
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*
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* @return int
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*/
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public static function sort_by_name($item1, $item2)
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{
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return api_strnatcmp($item1->get_name(), $item2->get_name());
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}
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/**
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* @param GradebookItem $item1
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* @param GradebookItem $item2
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*
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* @return int
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*/
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public function sort_by_id($item1, $item2)
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{
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return api_strnatcmp($item1->get_id(), $item2->get_id());
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}
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/**
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* @param GradebookItem $item1
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* @param GradebookItem $item2
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*
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* @return int
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*/
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public function sort_by_type($item1, $item2)
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{
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if ($item1->get_item_type() == $item2->get_item_type()) {
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return $this->sort_by_name($item1, $item2);
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} else {
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return $item1->get_item_type() < $item2->get_item_type() ? -1 : 1;
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}
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}
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/**
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* @param GradebookItem $item1
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* @param GradebookItem $item2
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*
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* @return int
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*/
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public function sort_by_description($item1, $item2)
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{
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$result = api_strcmp($item1->get_description(), $item2->get_description());
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if (0 == $result) {
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return $this->sort_by_name($item1, $item2);
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}
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return $result;
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}
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/**
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* @param GradebookItem $item1
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* @param GradebookItem $item2
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*
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* @return int
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*/
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public function sort_by_weight($item1, $item2)
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{
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if ($item1->get_weight() == $item2->get_weight()) {
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return $this->sort_by_name($item1, $item2);
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} else {
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return $item1->get_weight() < $item2->get_weight() ? -1 : 1;
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}
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}
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/**
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* @param GradebookItem $item1
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* @param GradebookItem $item2
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*
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* @return int
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*/
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public function sort_by_date($item1, $item2)
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{
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if (is_int($item1->get_date())) {
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$timestamp1 = $item1->get_date();
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} else {
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$date = $item1->get_date();
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if (!empty($date)) {
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$timestamp1 = api_strtotime($date, 'UTC');
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} else {
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$timestamp1 = null;
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}
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}
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if (is_int($item2->get_date())) {
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$timestamp2 = $item2->get_date();
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} else {
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$timestamp2 = api_strtotime($item2->get_date(), 'UTC');
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}
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if ($timestamp1 == $timestamp2) {
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return $this->sort_by_name($item1, $item2);
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} else {
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return $timestamp1 < $timestamp2 ? -1 : 1;
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}
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}
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/**
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* Get best result of an item.
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*
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* @return array
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*/
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public function buildBestResultColumn(GradebookItem $item)
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{
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$score = $item->calc_score(
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null,
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'best',
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api_get_course_id(),
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api_get_session_id()
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|
);
|
|
|
|
if (empty($score)) {
|
|
return [
|
|
'display' => '',
|
|
'score' => '',
|
|
];
|
|
}
|
|
|
|
$scoreMode = SCORE_DIV_PERCENT_WITH_CUSTOM;
|
|
if ($this->hidePercentage) {
|
|
$scoreMode = SCORE_DIV;
|
|
}
|
|
|
|
$scoreDisplay = ScoreDisplay::instance();
|
|
$display = $scoreDisplay->display_score(
|
|
$score,
|
|
$scoreMode,
|
|
SCORE_BOTH,
|
|
true
|
|
);
|
|
$type = $item->get_item_type();
|
|
if ('L' === $type && 'ExerciseLink' === get_class($item)) {
|
|
$display = ExerciseLib::show_score($score[0], $score[1], false);
|
|
}
|
|
|
|
return [
|
|
'display' => $display,
|
|
'score' => $score,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public function buildAverageResultColumn(GradebookItem $item)
|
|
{
|
|
$score = $item->calc_score(null, 'average');
|
|
|
|
if (empty($score)) {
|
|
return [
|
|
'display' => '',
|
|
'score' => '',
|
|
];
|
|
}
|
|
|
|
$scoreDisplay = ScoreDisplay::instance();
|
|
|
|
$scoreMode = SCORE_DIV_PERCENT_WITH_CUSTOM;
|
|
if ($this->hidePercentage) {
|
|
$scoreMode = SCORE_DIV;
|
|
}
|
|
|
|
$display = $scoreDisplay->display_score(
|
|
$score,
|
|
$scoreMode,
|
|
SCORE_BOTH,
|
|
true
|
|
);
|
|
$type = $item->get_item_type();
|
|
|
|
if ('L' === $type && 'ExerciseLink' === get_class($item)) {
|
|
$display = ExerciseLib::show_score($score[0], $score[1], false);
|
|
$result = ExerciseLib::convertScoreToPlatformSetting($score[0], $score[1]);
|
|
$score[0] = $result['score'];
|
|
$score[1] = $result['weight'];
|
|
}
|
|
|
|
return [
|
|
'display' => $display,
|
|
'score' => $score,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @param int $userId
|
|
* @param int $userCount
|
|
*
|
|
* @return array
|
|
*/
|
|
public function buildRankingColumn(GradebookItem $item, $userId = null, $userCount = 0)
|
|
{
|
|
$score = $item->calc_score($userId, 'ranking');
|
|
$score[1] = $userCount;
|
|
$scoreDisplay = null;
|
|
if (isset($score[0])) {
|
|
$scoreDisplay = ScoreDisplay::instance();
|
|
$scoreDisplay = $scoreDisplay->display_score(
|
|
$score,
|
|
SCORE_DIV,
|
|
SCORE_BOTH,
|
|
false,
|
|
true
|
|
);
|
|
}
|
|
|
|
return [
|
|
'display' => $scoreDisplay,
|
|
'score' => $score,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @param int $userId
|
|
* @param GradebookItem $item
|
|
* @param bool $ignore_score_color
|
|
*
|
|
* @return string|null
|
|
*/
|
|
public function build_result_column(
|
|
$userId,
|
|
$item,
|
|
$ignore_score_color,
|
|
$forceSimpleResult = false
|
|
) {
|
|
$scoreDisplay = ScoreDisplay::instance();
|
|
$score = $item->calc_score($userId);
|
|
$model = ExerciseLib::getCourseScoreModel();
|
|
|
|
if (!empty($score)) {
|
|
switch ($item->get_item_type()) {
|
|
// category
|
|
case 'C':
|
|
if (null != $score) {
|
|
if (empty($model)) {
|
|
return [
|
|
'display' => $scoreDisplay->display_score(
|
|
$score,
|
|
SCORE_DIV
|
|
),
|
|
'score' => $score,
|
|
'score_weight' => $score,
|
|
];
|
|
} else {
|
|
$display = ExerciseLib::show_score(
|
|
$score[0],
|
|
$score[1],
|
|
false
|
|
);
|
|
|
|
return [
|
|
'display' => $display,
|
|
'score' => $score,
|
|
'score_weight' => $score,
|
|
];
|
|
}
|
|
} else {
|
|
return [
|
|
'display' => null,
|
|
'score' => $score,
|
|
'score_weight' => $score,
|
|
];
|
|
}
|
|
break;
|
|
case 'E':
|
|
case 'L':
|
|
$scoreWeight = [
|
|
($score[1] > 0) ? $score[0] / $score[1] * $item->get_weight() : 0,
|
|
$item->get_weight(),
|
|
];
|
|
|
|
if (empty($model)) {
|
|
$display = $scoreDisplay->display_score(
|
|
$score,
|
|
SCORE_DIV_PERCENT_WITH_CUSTOM
|
|
);
|
|
|
|
$type = $item->get_item_type();
|
|
if ('L' == $type && 'ExerciseLink' == get_class($item)) {
|
|
$display = ExerciseLib::show_score(
|
|
$score[0],
|
|
$score[1],
|
|
false
|
|
);
|
|
}
|
|
} else {
|
|
$display = ExerciseLib::show_score(
|
|
$score[0],
|
|
$score[1],
|
|
false
|
|
);
|
|
}
|
|
|
|
return [
|
|
'display' => $display,
|
|
'score' => $score,
|
|
'score_weight' => $scoreWeight,
|
|
];
|
|
}
|
|
}
|
|
|
|
return [
|
|
'display' => null,
|
|
'score' => null,
|
|
'score_weight' => null,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @param GradebookItem $item
|
|
*
|
|
* @return string
|
|
*/
|
|
private function build_date_column($item)
|
|
{
|
|
$date = $item->get_date();
|
|
if (!isset($date) || empty($date)) {
|
|
return '';
|
|
} else {
|
|
if (is_int($date)) {
|
|
return api_convert_and_format_date($date);
|
|
} else {
|
|
return api_format_date($date);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|