Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/exercice/testcategory.class.php

586 lines
21 KiB

<?php
/* For licensing terms, see /license.txt */
/** @author hubert.borderiou **/
if (!class_exists('Testcategory')):
class Testcategory {
public $id;
public $name;
public $description;
/**
* Constructor of the class Category
* @author - Hubert Borderiou
If you give an in_id and no in_name, you get info concerning the category of id=in_id
otherwise, you've got an category objet avec your in_id, in_name, in_descr
*/
function Testcategory($in_id=0, $in_name = '', $in_description="") {
if ($in_id != 0 && $in_name == "") {
$tmpobj = new Testcategory();
$tmpobj->getCategory($in_id);
$this->id = $tmpobj->id;
$this->name = $tmpobj->name;
$this->description = $tmpobj->description;
}
else {
$this->id = $in_id;
$this->name = $in_name;
$this->description = $in_description;
}
}
/** return the Testcategory object with id=in_id
*/
function getCategory($in_id) {
$t_cattable = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$in_id = Database::escape_string($in_id);
$sql = "SELECT * FROM $t_cattable WHERE id=$in_id AND c_id=".api_get_course_int_id();
$res = Database::query($sql);
$numrows = Database::num_rows($res);
if ($numrows > 0) {
$row = Database::fetch_array($res);
$this->id = $row['id'];
$this->name = $row['title'];
$this->description = $row['description'];
}
}
/** add Testcategory in the database if name doesn't already exists
*/
function addCategoryInBDD() {
$t_cattable = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$v_name = $this->name;
$v_name = Database::escape_string($v_name);
$v_description = $this->description;
$v_description = Database::escape_string($v_description);
// check if name already exists
$sql_verif = "SELECT count(*) AS nb FROM $t_cattable WHERE title = '$v_name' AND c_id=".api_get_course_int_id();
$result_verif = Database::query($sql_verif);
$data_verif = Database::fetch_array($result_verif);
// lets add in BDD if not the same name
if ($data_verif['nb'] <= 0) {
$c_id = api_get_course_int_id();
$sql = "INSERT INTO $t_cattable VALUES ('$c_id', '', '$v_name', '$v_description')";
$res = Database::query($sql);
return true;
}
else {
return false;
}
}
/**
* Removes the category with id=in_id from the database if no question use this category
* @todo I'm removing the $in_id parameter because it seems that you're using $this->id instead of $in_id after confirmation delete this
* jmontoya
*/
//function removeCategory($in_id) {
function removeCategory() {
$t_cattable = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$v_id = Database::escape_string($this->id);
$sql = "DELETE FROM $t_cattable WHERE id=$v_id AND c_id=".api_get_course_int_id();
$res = Database::query($sql);
if (Database::affected_rows() <= 0) {
return false;
} else {
return true;
}
}
/** modify category name or description of category with id=in_id
*/
//function modifyCategory($in_id, $in_name, $in_description) {
function modifyCategory() {
$t_cattable = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$v_id = Database::escape_string($this->id);
$v_name = Database::escape_string($this->name);
$v_description = Database::escape_string($this->description);
$sql = "UPDATE $t_cattable SET title='$v_name', description='$v_description' WHERE id='$v_id' AND c_id=".api_get_course_int_id();
$res = Database::query($sql);
if (Database::affected_rows() <= 0) {
return false;
}
else {
return true;
}
}
/**
* Gets the number of question of category id=in_id
* @todo I'm removing the $in_id parameter because it seems that you're using $this->id instead of $in_id after confirmation delete this
* jmontoya
*/
//function getCategoryQuestionsNumber($in_id) {
function getCategoryQuestionsNumber() {
$t_reltable = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$in_id = Database::escape_string($this->id);
$sql = "SELECT count(*) AS nb FROM $t_reltable WHERE category_id=$in_id AND c_id=".api_get_course_int_id();
$res = Database::query($sql);
$row = Database::fetch_array($res);
return $row['nb'];
}
function display($in_color="#E0EBF5") {
echo "<textarea style='background-color:$in_color; width:60%; height:100px;'>";
print_r($this);
echo "</textarea>";
}
/** return an array of all Category objects in the database
If in_field=="" Return an array of all category objects in the database
Otherwise, return an array of all in_field value in the database (in_field = id or name or description)
*/
public static function getCategoryListInfo($in_field="", $in_courseid="") {
if (empty($in_courseid) || $in_courseid=="") {
$in_courseid = api_get_course_int_id();
}
$t_cattable = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$in_field = Database::escape_string($in_field);
$tabres = array();
if ($in_field=="") {
$sql = "SELECT * FROM $t_cattable WHERE c_id=$in_courseid ORDER BY title ASC";
$res = Database::query($sql);
while ($row = Database::fetch_array($res)) {
$tmpcat = new Testcategory($row['id'], $row['title'], $row['description']);
$tabres[] = $tmpcat;
}
}
else {
$sql = "SELECT $in_field FROM $t_cattable WHERE c_id=$in_courseid ORDER BY $in_field ASC";
$res = Database::query($sql);
while ($row = Database::fetch_array($res)) {
$tabres[] = $row[$in_field];
}
}
return $tabres;
}
/**
Return the testcategory id for question with question_id = $in_questionid
In this version, a question has only 1 testcategory.
Return the testcategory id, 0 if none
*/
public static function getCategoryForQuestion($in_questionid, $in_courseid = null) {
$result = array(); // result
if (empty($in_courseid) || $in_courseid=="") {
$in_courseid = api_get_course_int_id();
}
$t_cattable = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$question_id = Database::escape_string($in_questionid);
$sql = "SELECT category_id FROM $t_cattable WHERE question_id = '$question_id' AND c_id = $in_courseid";
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
while ($row = Database::fetch_array($res)) {
$result[] = $row['category_id'];
}
}
return $result;
}
public static function getCategoryNamesForQuestion($in_questionid, $in_courseid = null, $display_into_labels = true) {
$result = array(); // result
if (empty($in_courseid) || $in_courseid=="") {
$in_courseid = api_get_course_int_id();
}
$t_cattable = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$table_category = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$question_id = Database::escape_string($in_questionid);
$sql = "SELECT c.title FROM $t_cattable qc INNER JOIN $table_category c
ON (qc.category_id = c.id AND qc.c_id = $in_courseid AND c.c_id = $in_courseid)
WHERE question_id = '$question_id' ";
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
while ($row = Database::fetch_array($res)) {
$result[] = $row['title'];
}
}
if ($display_into_labels) {
$html = self::draw_category_label($result, 'header');
return $html;
}
return $result;
}
/**
* true if question id has a category
*/
public static function isQuestionHasCategory($in_questionid) {
$category_list = Testcategory::getCategoryForQuestion($in_questionid);
if (!empty($category_list)) {
return true;
}
return false;
}
/**
* @todo fix this
Return the category name for question with question_id = $in_questionid
In this version, a question has only 1 category.
Return the category id, "" if none
*/
public static function getCategoryNameForQuestion($question_id, $course_id = null) {
if (empty($course_id) || $course_id == "") {
$course_id = api_get_course_int_id();
}
$course_id = intval($course_id);
$category_list = Testcategory::getCategoryForQuestion($question_id, $course_id);
$result = array(); // result
$t_cattable = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$catid = Database::escape_string($catid);
$sql = "SELECT title FROM $t_cattable WHERE id='$catid' AND c_id = $course_id";
$res = Database::query($sql);
$data = Database::fetch_array($res);
if (Database::num_rows($res) > 0) {
$result = $data['title'];
}
return $result;
}
/**
* return the list of differents categories ID for a test
* input : test_id
* return : array of category id (integer)
* @author hubert.borderiou 07-04-2011, Julio Montoya
*/
public static function getListOfCategoriesIDForTest($exercise_id) {
// parcourir les questions d'un test, recup les categories uniques dans un tableau
$categories_in_exercise = array();
$quiz = new Exercise();
$quiz->read($exercise_id);
$question_list = $quiz->selectQuestionList();
// the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ???
for ($i=1; $i <= count($question_list); $i++) {
$category_list = Testcategory::getCategoryForQuestion($question_list[$i]);
if (!empty($category_list)) {
$categories_in_exercise = array_merge($categories_in_exercise, $category_list);
}
}
if (!empty($categories_in_exercise)) {
$categories_in_exercise = array_unique(array_filter($categories_in_exercise));
}
return $categories_in_exercise;
}
/**
* return the list of differents categories NAME for a test
* input : test_id
* return : array of string
* hubert.borderiou 07-04-2011
* @author function rewrote by jmontoya
*/
public static function getListOfCategoriesNameForTest($in_testid) {
$tabcatName = array();
$tabcatID = self::getListOfCategoriesIDForTest($in_testid);
for ($i=0; $i < count($tabcatID); $i++) {
$cat = new Testcategory($tabcatID[$i]);
$tabcatName[$cat->id] = $cat->name;
}
return $tabcatName;
}
/**
* return the number of differents categories for a test
* input : test_id
* return : integer
* hubert.borderiou 07-04-2011
*/
public static function getNumberOfCategoriesForTest($in_testid) {
return count(Testcategory::getListOfCategoriesIDForTest($in_testid));
}
/**
* return the number of question of a category id in a test
* input : test_id, category_id
* return : integer
* hubert.borderiou 07-04-2011
*/
public static function getNumberOfQuestionsInCategoryForTest($exercise_id, $category_id) {
$number_questions_in_category = 0;
$exercise = new Exercise();
$exercise->read($exercise_id);
$question_list = $exercise->selectQuestionList();
// the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ? ? ?
for ($i=1; $i <= count($question_list); $i++) {
$category_in_question = Testcategory::getCategoryForQuestion($question_list[$i]);
if (in_array($category_id, $category_in_question)) {
$number_questions_in_category++;
}
}
return $number_questions_in_category;
}
/**
* return the number of question for a test using random by category
* input : test_id, number of random question (min 1)
* hubert.borderiou 07-04-2011
* question witout categories are not counted
*/
public static function getNumberOfQuestionRandomByCategory($exercise_id, $in_nbrandom) {
$nbquestionresult = 0;
$list_categories = Testcategory::getListOfCategoriesIDForTest($exercise_id);
if (!empty($list_categories)) {
for ($i=0; $i < count($list_categories); $i++) {
if ($list_categories[$i] > 0) { // 0 = no category for this question
$nbQuestionInThisCat = Testcategory::getNumberOfQuestionsInCategoryForTest($exercise_id, $list_categories[$i]);
if ($nbQuestionInThisCat > $in_nbrandom) {
$nbquestionresult += $in_nbrandom;
} else {
$nbquestionresult += $nbQuestionInThisCat;
}
}
}
}
return $nbquestionresult;
}
/**
* Return an array (id=>name)
* tabresult[0] = get_lang('NoCategory');
*
*/
static function getCategoriesIdAndName($in_courseid = "") {
if (empty($in_courseid) || $in_courseid=="") {
$in_courseid = api_get_course_int_id();
}
$tabcatobject = Testcategory::getCategoryListInfo("", $in_courseid);
$tabresult = array("0"=>get_lang('NoCategorySelected'));
for ($i=0; $i < count($tabcatobject); $i++) {
$tabresult[$tabcatobject[$i]->id] = $tabcatobject[$i]->name;
}
return $tabresult;
}
/**
* return an array of question_id for each category
* tabres[0] = array of question id with category id = 0 (i.e. no category)
* tabres[24] = array of question id with category id = 24
* In this version, a question has 0 or 1 category
*/
static function getQuestionsByCat($in_exerciceId) {
$tabres = array();
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$in_exerciceId = intval($in_exerciceId);
$sql = "SELECT qrc.question_id, qrc.category_id FROM $TBL_QUESTION_REL_CATEGORY qrc, $TBL_EXERCICE_QUESTION eq
WHERE exercice_id=$in_exerciceId AND eq.question_id=qrc.question_id AND eq.c_id=".api_get_course_int_id()." AND eq.c_id=qrc.c_id ORDER BY category_id, question_id";
$res = Database::query($sql);
while ($data = Database::fetch_array($res)) {
if (!is_array($tabres[$data['category_id']])) {
$tabres[$data['category_id']] = array();
}
$tabres[$data['category_id']][] = $data['question_id'];
}
return $tabres;
}
/**
* return a tab of $in_number random elements of $in_tab
*/
static function getNElementsFromArray($in_tab, $in_number) {
$tabres = $in_tab;
shuffle($tabres);
if ($in_number < count($tabres)) {
$tabres = array_slice($tabres, 0, $in_number);
}
return $tabres;
}
/**
* Display signs [+] and/or (>0) after question title if question has options
* scoreAlwaysPositive and/or uncheckedMayScore
*/
function displayQuestionOption($in_objQuestion) {
if ($in_objQuestion->type == MULTIPLE_ANSWER && $in_objQuestion->scoreAlwaysPositive) {
echo "<span style='font-size:75%'> (>0)</span>";
}
if ($in_objQuestion->type == MULTIPLE_ANSWER && $in_objQuestion->uncheckedMayScore) {
echo "<span style='font-size:75%'> [+]</span>";
}
}
/**
* sortTabByBracketLabel ($tabCategoryQuestions)
* key of $tabCategoryQuestions are the categopy id (0 for not in a category)
* value is the array of question id of this category
* Sort question by Category
*/
static function sortTabByBracketLabel($in_tab) {
$tabResult = array();
$tabCatName = array(); // tab of category name
while (list($cat_id, $tabquestion) = each($in_tab)) {
$catTitle = new Testcategory($cat_id);
$tabCatName[$cat_id] = $catTitle->name;
}
reset($in_tab);
// sort table by value, keeping keys as they are
asort($tabCatName);
// keys of $tabCatName are keys order for $in_tab
while (list($key, $val) = each($tabCatName)) {
$tabResult[$key] = $in_tab[$key];
}
return $tabResult;
}
/**
* return total score for test exe_id for all question in the category $in_cat_id for user
* If no question for this category, return ""
*/
public static function getCatScoreForExeidForUserid($in_cat_id, $in_exe_id, $in_user_id) {
$tbl_track_attempt = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$tbl_question_rel_category = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$in_cat_id = intval($in_cat_id);
$in_exe_id = intval($in_exe_id);
$in_user_id = intval($in_user_id);
$query = "SELECT DISTINCT marks, exe_id, user_id, ta.question_id, category_id FROM $tbl_track_attempt ta , $tbl_question_rel_category qrc
WHERE ta.question_id=qrc.question_id AND qrc.category_id=$in_cat_id AND exe_id=$in_exe_id AND user_id=$in_user_id";
$res = Database::query($query);
$totalcatscore = "";
while ($data = Database::fetch_array($res)) {
$totalcatscore += $data['marks'];
}
return $totalcatscore;
}
/**
* return the number max of question in a category
* count the number of questions in all categories, and return the max
* @author - hubert borderiou
*/
public static function getNumberMaxQuestionByCat($in_testid) {
$res_num_max = 0;
// foreach question
$tabcatid = Testcategory::getListOfCategoriesIDForTest($in_testid);
for ($i=0; $i < count($tabcatid); $i++) {
if ($tabcatid[$i] > 0) { // 0 = no category for this question
$nbQuestionInThisCat = Testcategory::getNumberOfQuestionsInCategoryForTest($in_testid, $tabcatid[$i]);
if ($nbQuestionInThisCat > $res_num_max) {
$res_num_max = $nbQuestionInThisCat;
}
}
}
return $res_num_max;
}
public static function getCategoryListName($course_id = null) {
$category_list = self::getCategoryListInfo(null, $course_id);
$category_name_list = array();
if (!empty($category_list)) {
foreach($category_list as $category) {
$category_name_list[$category->id] = $category->name;
}
}
return $category_name_list;
}
public static function return_category_labels($category_list, $all_categories) {
$category_list_to_render = array();
foreach ($category_list as $category_id) {
$category_name = null;
if (!isset($all_categories[$category_id])) {
$category_name = get_lang('Untitled');
} else {
$category_name = Text::cut($all_categories[$category_id], 15);
}
$category_list_to_render[] = $category_name;
}
$html = self::draw_category_label($category_list_to_render, 'label');
return $html;
}
static function draw_category_label($category_list, $type = 'label') {
$new_category_list = array();
foreach ($category_list as $category_name) {
switch ($type) {
case 'label':
$new_category_list[] = Display::label($category_name, 'info');
break;
case 'header':
$new_category_list[] = $category_name;
break;
}
}
$html = null;
if (!empty($new_category_list)) {
switch ($type) {
case 'label':
$html = implode(' ', $new_category_list);
break;
case 'header':
$html = Display::page_subheader3(get_lang('Category').': '.implode(', ', $new_category_list));
}
}
return $html;
}
/**
* Returns a category summary report
* @params int exercise id
* @params array prefilled array with the category_id, score, and weight example: array(1 => array('score' => '10', 'total' => 20));
*/
public static function get_stats_table_by_attempt($exercise_id, $category_list = array()) {
if (empty($category_list)) {
return null;
}
$category_name_list = Testcategory::getListOfCategoriesNameForTest($exercise_id);
$table = new HTML_Table(array('class' => 'data_table'));
$table->setHeaderContents(0, 0, get_lang('Categories'));
$table->setHeaderContents(0, 1, get_lang('AbsoluteScore'));
$table->setHeaderContents(0, 2, get_lang('RelativeScore'));
$row = 1;
$none_category = array();
if (isset($category_list['none'])) {
$none_category = $category_list['none'];
unset($category_list['none']);
}
$total = array();
if (isset($category_list['total'])) {
$total = $category_list['total'];
unset($category_list['total']);
}
if (count($category_list) > 1) {
foreach ($category_list as $category_id => $category_item) {
$table->setCellContents($row, 0, $category_name_list[$category_id]);
$table->setCellContents($row, 1, show_score($category_item['score'], $category_item['total'], false));
$table->setCellContents($row, 2, show_score($category_item['score'], $category_item['total'], true, false, true));
$row++;
}
if (!empty($none_category)) {
$table->setCellContents($row, 0, get_lang('None'));
$table->setCellContents($row, 1, show_score($none_category['score'], $none_category['total'], false));
$table->setCellContents($row, 2, show_score($none_category['score'], $none_category['total'], true, false, true));
$row++;
}
if (!empty($total)) {
$table->setCellContents($row, 0, get_lang('Total'));
$table->setCellContents($row, 1, show_score($total['score'], $total['total'], false));
$table->setCellContents($row, 2, show_score($total['score'], $total['total'], true, false, true));
}
return $table->toHtml();
}
return null;
}
}
endif;