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chamilo-lms/main/exercise/TestCategory.php

1246 lines
40 KiB

<?php
/* For licensing terms, see /license.txt */
use ChamiloSession as Session;
/**
* Class TestCategory
* @author hubert.borderiou
* @author Julio Montoya - several fixes
* @todo rename to ExerciseCategory
*/
class TestCategory
{
public $id;
public $name;
public $description;
/**
* Constructor of the class Category
*/
public function __construct()
{
}
/**
* return the TestCategory object with id=in_id
* @param int $id
* @param int $courseId
* @return TestCategory
*/
public function getCategory($id, $courseId = 0)
{
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$id = intval($id);
$courseId = empty($courseId) ? api_get_course_int_id() : (int) $courseId;
$sql = "SELECT * FROM $table
WHERE id = $id AND c_id = ".$courseId;
$res = Database::query($sql);
if (Database::num_rows($res)) {
$row = Database::fetch_array($res);
$this->id = $row['id'];
$this->name = $row['title'];
$this->description = $row['description'];
return $this;
}
return false;
}
/**
* Save TestCategory in the database if name doesn't exists
* @param int $courseId
* @return bool
*/
public function save($courseId = 0)
{
$courseId = empty($courseId) ? api_get_course_int_id() : (int) $courseId;
$courseInfo = api_get_course_info_by_id($courseId);
if (empty($courseInfo)) {
return false;
}
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
// check if name already exists
$sql = "SELECT count(*) AS nb FROM $table
WHERE title = '".$this->name."' AND c_id = $courseId";
$result = Database::query($sql);
$row = Database::fetch_array($result);
// lets add in BDD if not the same name
if ($row['nb'] <= 0) {
$params = [
'c_id' => $courseId,
'title' => (string) $this->name,
'description' => (string) $this->description
];
$newId = Database::insert($table, $params);
if ($newId) {
$sql = "UPDATE $table SET id = iid WHERE iid = $newId";
Database::query($sql);
api_item_property_update(
$courseInfo,
TOOL_TEST_CATEGORY,
$newId,
'TestCategoryAdded',
api_get_user_id()
);
}
return $newId;
} else {
return false;
}
}
/**
* Removes the category from the database
* if there were question in this category, the link between question and category is removed
* @param int $id
* @return bool
*/
public function removeCategory($id)
{
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$tbl_question_rel_cat = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$id = intval($id);
$course_id = api_get_course_int_id();
$category = $this->getCategory($id);
if ($category) {
$sql = "DELETE FROM $table
WHERE id= $id AND c_id=".$course_id;
Database::query($sql);
// remove link between question and category
$sql = "DELETE FROM $tbl_question_rel_cat
WHERE category_id = $id AND c_id=".$course_id;
Database::query($sql);
// item_property update
$course_info = api_get_course_info_by_id($course_id);
api_item_property_update(
$course_info,
TOOL_TEST_CATEGORY,
$this->id,
'TestCategoryDeleted',
api_get_user_id()
);
return true;
}
return false;
}
/**
* Modify category name or description of category with id=in_id
* @param int $courseId
* @return bool
*/
public function modifyCategory($courseId = 0)
{
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$id = intval($this->id);
$name = Database::escape_string($this->name);
$description = Database::escape_string($this->description);
$cat = $this->getCategory($id);
$courseId = empty($courseId) ? api_get_course_int_id() : (int) $courseId;
$courseInfo = api_get_course_info_by_id($courseId);
if (empty($courseInfo)) {
return false;
}
if ($cat) {
$sql = "UPDATE $table SET
title = '$name',
description = '$description'
WHERE id = $id AND c_id = ".$courseId;
Database::query($sql);
// item_property update
api_item_property_update(
$courseInfo,
TOOL_TEST_CATEGORY,
$this->id,
'TestCategoryModified',
api_get_user_id()
);
return true;
}
return false;
}
/**
* Gets the number of question of category id=in_id
*/
public function getCategoryQuestionsNumber()
{
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$id = intval($this->id);
$sql = "SELECT count(*) AS nb
FROM $table
WHERE category_id = $id AND c_id=".api_get_course_int_id();
$res = Database::query($sql);
$row = Database::fetch_array($res);
return $row['nb'];
}
/**
* Return an array of all Category objects in the database
* If $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)
*
* @param string $field
* @param int $courseId
* @return array
*/
public static function getCategoryListInfo($field = '', $courseId = 0)
{
$courseId = empty($courseId) ? api_get_course_int_id() : (int) $courseId;
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$field = Database::escape_string($field);
$categories = [];
if (empty($field)) {
$sql = "SELECT id FROM $table
WHERE c_id = $courseId
ORDER BY title ASC";
$res = Database::query($sql);
while ($row = Database::fetch_array($res)) {
$category = new TestCategory();
$categories[] = $category->getCategory($row['id']);
}
} else {
$sql = "SELECT $field FROM $table
WHERE c_id = $courseId
ORDER BY $field ASC";
$res = Database::query($sql);
while ($row = Database::fetch_array($res)) {
$categories[] = $row[$field];
}
}
return $categories;
}
/**
* Return the TestCategory id for question with question_id = $questionId
* In this version, a question has only 1 TestCategory.
* Return the TestCategory id, 0 if none
* @param int $questionId
* @param int $courseId
*
* @return int
*/
public static function getCategoryForQuestion($questionId, $courseId = 0)
{
$courseId = (int) $courseId;
$questionId = (int) $questionId;
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
if (empty($courseId) || empty($questionId)) {
return 0;
}
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$sql = "SELECT category_id
FROM $table
WHERE question_id = $questionId AND c_id = $courseId";
$res = Database::query($sql);
$result = 0;
if (Database::num_rows($res) > 0) {
$data = Database::fetch_array($res);
$result = (int) $data['category_id'];
}
return $result;
}
/**
* true if question id has a category
*
* @param int $questionId
* @return bool
*/
public static function isQuestionHasCategory($questionId)
{
if (self::getCategoryForQuestion($questionId) > 0) {
return true;
}
return false;
}
/**
* Return the category name for question with question_id = $questionId
* In this version, a question has only 1 category.
* @param $questionId
* @param int $courseId
* @return string
*/
public static function getCategoryNameForQuestion(
$questionId,
$courseId = 0
) {
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
$courseId = (int) $courseId;
$categoryId = self::getCategoryForQuestion($questionId, $courseId);
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$sql = "SELECT title
FROM $table
WHERE id = $categoryId AND c_id = $courseId";
$res = Database::query($sql);
$data = Database::fetch_array($res);
$result = '';
if (Database::num_rows($res) > 0) {
$result = $data['title'];
}
return $result;
}
/**
* Return the list of differents categories ID for a test in the current course
* input : test_id
* return : array of category id (integer)
* hubert.borderiou 07-04-2011
* @param int $exerciseId
* @param int $courseId
*
* @return array
*/
public static function getListOfCategoriesIDForTest($exerciseId, $courseId = 0)
{
// parcourir les questions d'un test, recup les categories uniques dans un tableau
$exercise = new Exercise($courseId);
$exercise->read($exerciseId, false);
$categoriesInExercise = $exercise->getQuestionWithCategories();
// the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ???
$categories = [];
if (!empty($categoriesInExercise)) {
foreach ($categoriesInExercise as $category) {
$categories[$category['id']] = $category;
}
}
return $categories;
}
/**
* @param Exercise $exercise
* @return array
*/
public static function getListOfCategoriesIDForTestObject(Exercise $exercise)
{
// parcourir les questions d'un test, recup les categories uniques dans un tableau
$categories_in_exercise = [];
$question_list = $exercise->getQuestionOrderedListByName();
// the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ???
foreach ($question_list as $questionInfo) {
$question_id = $questionInfo['question_id'];
$category_list = self::getCategoryForQuestion($question_id);
if (is_numeric($category_list)) {
$category_list = [$category_list];
}
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 different categories NAME for a test
* @param int $exerciseId
* @param bool
* @return array
*
* @author function rewrote by jmontoya
*/
public static function getListOfCategoriesNameForTest($exerciseId, $grouped_by_category = true)
{
$result = [];
$categories = self::getListOfCategoriesIDForTest(
$exerciseId
);
foreach ($categories as $catInfo) {
$categoryId = $catInfo['id'];
if (!empty($categoryId)) {
$result[$categoryId] = [
'title' => $catInfo['title'],
//'parent_id' => $catInfo['parent_id'],
'parent_id' => '',
'c_id' => $catInfo['c_id']
];
}
}
return $result;
}
/**
* @param Exercise $exercise
* @return array
*/
public static function getListOfCategoriesForTest(Exercise $exercise)
{
$result = [];
$categories = self::getListOfCategoriesIDForTestObject($exercise);
foreach ($categories as $cat_id) {
$cat = new TestCategory();
$cat = (array) $cat->getCategory($cat_id);
$cat['iid'] = $cat['id'];
$cat['title'] = $cat['name'];
$result[$cat['id']] = $cat;
}
return $result;
}
/**
* return the number of differents categories for a test
* input : test_id
* return : integer
* hubert.borderiou 07-04-2011
*/
public static function getNumberOfCategoriesForTest($id)
{
return count(self::getListOfCategoriesIDForTest($id));
}
/**
* return the number of question of a category id in a test
* @param int $exerciseId
* @param int $categoryId
*
* @return integer
*
* @author hubert.borderiou 07-04-2011
*/
public static function getNumberOfQuestionsInCategoryForTest($exerciseId, $categoryId)
{
$nbCatResult = 0;
$quiz = new Exercise();
$quiz->read($exerciseId);
$questionList = $quiz->selectQuestionList();
// the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ? ? ?
for ($i = 1; $i <= count($questionList); $i++) {
if (self::getCategoryForQuestion($questionList[$i]) == $categoryId) {
$nbCatResult++;
}
}
return $nbCatResult;
}
/**
* return the number of question for a test using random by category
* input : test_id, number of random question (min 1)
* @param int $exerciseId
* @param int $random
* @return int
* hubert.borderiou 07-04-2011
* question without categories are not counted
*/
public static function getNumberOfQuestionRandomByCategory($exerciseId, $random)
{
$count = 0;
$categories = self::getListOfCategoriesIDForTest($exerciseId);
foreach ($categories as $category) {
if (empty($category['id'])) {
continue;
}
$nbQuestionInThisCat = self::getNumberOfQuestionsInCategoryForTest(
$exerciseId,
$category['id']
);
if ($nbQuestionInThisCat > $random) {
$count += $random;
} else {
$count += $nbQuestionInThisCat;
}
}
return $count;
}
/**
* Return an array (id=>name)
* array[0] = get_lang('NoCategory');
*
* @param int $courseId
*
* @return array
*
*/
public static function getCategoriesIdAndName($courseId = 0)
{
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
$categories = self::getCategoryListInfo('', $courseId);
$result = ['0' => get_lang('NoCategorySelected')];
for ($i = 0; $i < count($categories); $i++) {
$result[$categories[$i]->id] = $categories[$i]->name;
}
return $result;
}
/**
* Returns an array of question ids for each category
* $categories[1][30] = 10, array with category id = 1 and question_id = 10
* A question has "n" categories
* @param int $exerciseId
* @param array $check_in_question_list
* @param array $categoriesAddedInExercise
*
* @return array
*/
public static function getQuestionsByCat(
$exerciseId,
$check_in_question_list = [],
$categoriesAddedInExercise = []
) {
$tableQuestion = Database::get_course_table(TABLE_QUIZ_QUESTION);
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$categoryTable = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$exerciseId = intval($exerciseId);
$courseId = api_get_course_int_id();
$sql = "SELECT DISTINCT qrc.question_id, qrc.category_id
FROM $TBL_QUESTION_REL_CATEGORY qrc
INNER JOIN $TBL_EXERCICE_QUESTION eq
ON (eq.question_id = qrc.question_id AND qrc.c_id = eq.c_id)
INNER JOIN $categoryTable c
ON (c.id = qrc.category_id AND c.c_id = eq.c_id)
INNER JOIN $tableQuestion q
ON (q.id = qrc.question_id AND q.c_id = eq.c_id)
WHERE
exercice_id = $exerciseId AND
qrc.c_id = $courseId
";
$res = Database::query($sql);
$categories = [];
while ($data = Database::fetch_array($res)) {
if (!empty($check_in_question_list)) {
if (!in_array($data['question_id'], $check_in_question_list)) {
continue;
}
}
if (!isset($categories[$data['category_id']]) ||
!is_array($categories[$data['category_id']])
) {
$categories[$data['category_id']] = [];
}
$categories[$data['category_id']][] = $data['question_id'];
}
if (!empty($categoriesAddedInExercise)) {
$newCategoryList = [];
foreach ($categoriesAddedInExercise as $category) {
$categoryId = $category['category_id'];
if (isset($categories[$categoryId])) {
$newCategoryList[$categoryId] = $categories[$categoryId];
}
}
$checkQuestionsWithNoCategory = false;
foreach ($categoriesAddedInExercise as $category) {
if (empty($category['category_id'])) {
// Check
$checkQuestionsWithNoCategory = true;
break;
}
}
// Select questions that don't have any category related
if ($checkQuestionsWithNoCategory) {
$originalQuestionList = $check_in_question_list;
foreach ($originalQuestionList as $questionId) {
$categoriesFlatten = array_flatten($categories);
if (!in_array($questionId, $categoriesFlatten)) {
$newCategoryList[0][] = $questionId;
}
}
}
$categories = $newCategoryList;
}
return $categories;
}
/**
* Returns an array of $numberElements from $array
* @param array
* @param int
*
* @return array
*/
public static function getNElementsFromArray($array, $numberElements)
{
$list = $array;
shuffle($list);
if ($numberElements < count($list)) {
$list = array_slice($list, 0, $numberElements);
}
return $list;
}
/**
* @param int $questionId
*/
public static function displayCategoryAndTitle($questionId)
{
echo self::returnCategoryAndTitle($questionId);
}
/**
* @param int $questionId
* @return null|string
*/
public static function returnCategoryAndTitle($questionId)
{
$isStudent = !(api_is_allowed_to_edit(null, true) || api_is_session_admin());
$objExercise = Session::read('objExercise');
if (empty($objExercise)) {
return '';
}
$showCategoryName = !!$objExercise->display_category_name; //double negation to get a boolean value
$categoryName = self::getCategoryNameForQuestion($questionId);
if (empty($categoryName) || (!$showCategoryName && $isStudent)) {
return '';
}
return Display::page_header(
get_lang('Category').': '.$categoryName,
null,
'h4'
);
}
/**
* Display signs [+] and/or (>0) after question title if question has options
* scoreAlwaysPositive and/or uncheckedMayScore
* @param $objQuestion
*/
public function displayQuestionOption($objQuestion)
{
if ($objQuestion->type == MULTIPLE_ANSWER && $objQuestion->scoreAlwaysPositive) {
echo "<span style='font-size:75%'> (>0)</span>";
}
if ($objQuestion->type == MULTIPLE_ANSWER && $objQuestion->uncheckedMayScore) {
echo "<span style='font-size:75%'> [+]</span>";
}
}
/**
* sortTabByBracketLabel ($tabCategoryQuestions)
* key of $tabCategoryQuestions are the category id (0 for not in a category)
* value is the array of question id of this category
* Sort question by Category
*/
public static function sortTabByBracketLabel($in_tab)
{
$tabResult = [];
$tabCatName = []; // tab of category name
while (list($cat_id, $tabquestion) = each($in_tab)) {
$category = new TestCategory();
$category = $category->getCategory($cat_id);
$tabCatName[$cat_id] = $category->name;
}
reset($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_main_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
INNER JOIN $tbl_question_rel_category qrc
ON (ta.question_id=qrc.question_id)
WHERE
qrc.category_id = $in_cat_id AND
exe_id = $in_exe_id AND
user_id = $in_user_id";
$res = Database::query($query);
$score = '';
while ($data = Database::fetch_array($res)) {
$score += $data['marks'];
}
return $score;
}
/**
* Return the number max of question in a category
* count the number of questions in all categories, and return the max
* @param int $exerciseId
* @author - hubert borderiou
* @return int
*/
public static function getNumberMaxQuestionByCat($exerciseId)
{
$res_num_max = 0;
// foreach question
$categories = self::getListOfCategoriesIDForTest($exerciseId);
foreach ($categories as $category) {
if (empty($category['id'])) {
continue;
}
$nbQuestionInThisCat = self::getNumberOfQuestionsInCategoryForTest(
$exerciseId,
$category['id']
);
if ($nbQuestionInThisCat > $res_num_max) {
$res_num_max = $nbQuestionInThisCat;
}
}
return $res_num_max;
}
/**
* Returns a category summary report
* @param int $exerciseId
* @param array $category_list
* pre filled array with the category_id, score, and weight
* example: array(1 => array('score' => '10', 'total' => 20));
*
* @return string
*/
public static function get_stats_table_by_attempt(
$exerciseId,
$category_list = []
) {
if (empty($category_list)) {
return null;
}
$category_name_list = self::getListOfCategoriesNameForTest($exerciseId);
$table = new HTML_Table(['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;
$none_category = [];
if (isset($category_list['none'])) {
$none_category = $category_list['none'];
unset($category_list['none']);
}
$total = [];
if (isset($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,
ExerciseLib::show_score(
$category_item['score'],
$category_item['total'],
false
)
);
$table->setCellContents(
$row,
2,
ExerciseLib::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,
ExerciseLib::show_score(
$none_category['score'],
$none_category['total'],
false
)
);
$table->setCellContents(
$row,
2,
ExerciseLib::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,
ExerciseLib::show_score(
$total['score'],
$total['total'],
false
)
);
$table->setCellContents(
$row,
2,
ExerciseLib::show_score(
$total['score'],
$total['total'],
true,
false,
true
)
);
}
return $table->toHtml();
}
return '';
}
/**
* @return array
*/
public static function get_all_categories()
{
$table = Database::get_course_table(TABLE_QUIZ_CATEGORY);
$sql = "SELECT * FROM $table ORDER BY title ASC";
$res = Database::query($sql);
$array = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$array[] = $row;
}
return $array;
}
/**
* @param Exercise $exercise
* @param int $courseId
* @param string $order
* @param bool $shuffle
* @param bool $excludeCategoryWithNoQuestions
* @return array
*/
public function getCategoryExerciseTree(
$exercise,
$courseId,
$order = null,
$shuffle = false,
$excludeCategoryWithNoQuestions = true
) {
if (empty($exercise)) {
return [];
}
$courseId = (int) $courseId;
$table = Database::get_course_table(TABLE_QUIZ_REL_CATEGORY);
$categoryTable = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$sql = "SELECT * FROM $table qc
LEFT JOIN $categoryTable c
ON (qc.c_id = c.c_id AND c.id = qc.category_id)
WHERE qc.c_id = $courseId AND exercise_id = {$exercise->id} ";
if (!empty($order)) {
$sql .= "ORDER BY $order";
}
$categories = [];
$result = Database::query($sql);
if (Database::num_rows($result)) {
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($excludeCategoryWithNoQuestions) {
if ($row['count_questions'] == 0) {
continue;
}
}
if (empty($row['title']) && empty($row['category_id'])) {
$row['title'] = get_lang('NoCategory');
}
$categories[$row['category_id']] = $row;
}
}
if ($shuffle) {
shuffle_assoc($categories);
}
return $categories;
}
/**
* @param FormValidator $form
* @param string $action
*/
public function getForm(& $form, $action = 'new')
{
switch ($action) {
case 'new':
$header = get_lang('AddACategory');
$submit = get_lang('AddTestCategory');
break;
case 'edit':
$header = get_lang('EditCategory');
$submit = get_lang('ModifyCategory');
break;
}
// Setting the form elements
$form->addElement('header', $header);
$form->addElement('hidden', 'category_id');
$form->addElement(
'text',
'category_name',
get_lang('CategoryName'),
['class' => 'span6']
);
$form->add_html_editor(
'category_description',
get_lang('CategoryDescription'),
false,
false,
[
'ToolbarSet' => 'test_category',
'Width' => '90%',
'Height' => '200',
]
);
$category_parent_list = [];
$options = [
'1' => get_lang('Visible'),
'0' => get_lang('Hidden')
];
$form->addElement(
'select',
'visibility',
get_lang('Visibility'),
$options
);
$script = null;
if (!empty($this->parent_id)) {
$parent_cat = new TestCategory();
$parent_cat = $parent_cat->getCategory($this->parent_id);
$category_parent_list = [$parent_cat->id => $parent_cat->name];
$script .= '<script>$(function() { $("#parent_id").trigger("addItem",[{"title": "'.$parent_cat->name.'", "value": "'.$parent_cat->id.'"}]); });</script>';
}
$form->addElement('html', $script);
$form->addElement('select', 'parent_id', get_lang('Parent'), $category_parent_list, ['id' => 'parent_id']);
$form->addElement('style_submit_button', 'SubmitNote', $submit, 'class="add"');
// setting the defaults
$defaults = [];
$defaults["category_id"] = $this->id;
$defaults["category_name"] = $this->name;
$defaults["category_description"] = $this->description;
$defaults["parent_id"] = $this->parent_id;
$defaults["visibility"] = $this->visibility;
$form->setDefaults($defaults);
// setting the rules
$form->addRule('category_name', get_lang('ThisFieldIsRequired'), 'required');
}
/**
* Returns the category form.
* @param Exercise $exercise
* @return string
*/
public function returnCategoryForm(Exercise $exercise)
{
$categories = $this->getListOfCategoriesForTest($exercise);
$saved_categories = $exercise->get_categories_in_exercise();
$return = null;
if (!empty($categories)) {
$nbQuestionsTotal = $exercise->getNumberQuestionExerciseCategory();
$exercise->setCategoriesGrouping(true);
$real_question_count = count($exercise->getQuestionList());
$warning = null;
if ($nbQuestionsTotal != $real_question_count) {
$warning = Display::return_message(
get_lang('CheckThatYouHaveEnoughQuestionsInYourCategories'),
'warning'
);
}
$return .= $warning;
$return .= '<table class="data_table">';
$return .= '<tr>';
$return .= '<th height="24">'.get_lang('Categories').'</th>';
$return .= '<th width="70" height="24">'.get_lang('Number').'</th></tr>';
$emptyCategory = [
'id' => '0',
'name' => get_lang('NoCategory'),
'description' => '',
'iid' => '0',
'title' => get_lang('NoCategory')
];
$categories[] = $emptyCategory;
foreach ($categories as $category) {
$cat_id = $category['iid'];
$return .= '<tr>';
$return .= '<td>';
//$return .= Display::div(isset($category['parent_path']) ? $category['parent_path'] : '');
$return .= Display::div($category['name']);
$return .= '</td>';
$return .= '<td>';
$value = isset($saved_categories) && isset($saved_categories[$cat_id]) ? $saved_categories[$cat_id]['count_questions'] : -1;
$return .= '<input name="category['.$cat_id.']" value="'.$value.'" />';
$return .= '</td>';
$return .= '</tr>';
}
$return .= '</table>';
$return .= get_lang('ZeroMeansNoQuestionWillBeSelectedMinusOneMeansThatAllQuestionsWillBeSelected');
}
return $return;
}
/**
* Sorts an array
* @param array $array
* @return array
*/
public function sort_tree_array($array)
{
foreach ($array as $key => $row) {
$parent[$key] = $row['parent_id'];
}
if (count($array) > 0) {
array_multisort($parent, SORT_ASC, $array);
}
return $array;
}
/**
* Return true if a category already exists with the same name
* @param string $name
* @param int $courseId
*
* @return bool
*/
public static function categoryTitleExists($name, $courseId = 0)
{
$categories = self::getCategoryListInfo('title', $courseId);
foreach ($categories as $title) {
if ($title == $name) {
return true;
}
}
return false;
}
/**
* Return the id of the test category with title = $in_title
* @param string $title
* @param int $courseId
*
* @return int is id of test category
*/
public static function get_category_id_for_title($title, $courseId = 0)
{
$out_res = 0;
if (empty($courseId)) {
$courseId = api_get_course_int_id();
}
$courseId = intval($courseId);
$tbl_cat = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$sql = "SELECT id FROM $tbl_cat
WHERE c_id = $courseId AND title = '".Database::escape_string($title)."'";
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
$data = Database::fetch_array($res);
$out_res = $data['id'];
}
return $out_res;
}
/**
* Add a relation between question and category in table c_quiz_question_rel_category
* @param int $categoryId
* @param int $questionId
* @param int $courseId
*
* @return string|false
*/
public static function addCategoryToQuestion($categoryId, $questionId, $courseId)
{
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
// if question doesn't have a category
// @todo change for 1.10 when a question can have several categories
if (self::getCategoryForQuestion($questionId, $courseId) == 0 &&
$questionId > 0 &&
$courseId > 0
) {
$sql = "INSERT INTO $table (c_id, question_id, category_id)
VALUES (".intval($courseId).", ".intval($questionId).", ".intval($categoryId).")";
Database::query($sql);
$id = Database::insert_id();
return $id;
}
return false;
}
/**
* @param int $courseId
* @param int $sessionId
*
* @return array
*/
public function getCategories($courseId, $sessionId = 0)
{
$table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
$itemProperty = Database::get_course_table(TABLE_ITEM_PROPERTY);
$sessionId = intval($sessionId);
$courseId = intval($courseId);
if (empty($sessionId)) {
$sessionCondition = api_get_session_condition(
$sessionId,
true,
false,
'i.session_id'
);
} else {
$sessionCondition = api_get_session_condition(
$sessionId,
true,
true,
'i.session_id'
);
}
if (empty($courseId)) {
return [];
}
$sql = "SELECT c.* FROM $table c
INNER JOIN $itemProperty i
ON c.c_id = i.c_id AND i.ref = c.id
WHERE
c.c_id = $courseId AND
i.tool = '".TOOL_TEST_CATEGORY."'
$sessionCondition
ORDER BY title";
$result = Database::query($sql);
return Database::store_result($result, 'ASSOC');
}
/**
* @param int $courseId
* @param int $sessionId
* @return string
*/
public function displayCategories($courseId, $sessionId = 0)
{
$categories = $this->getCategories($courseId, $sessionId);
$html = '';
foreach ($categories as $category) {
$tmpobj = new TestCategory();
$tmpobj = $tmpobj->getCategory($category['id']);
$nb_question = $tmpobj->getCategoryQuestionsNumber();
$rowname = self::protectJSDialogQuote($category['title']);
$nb_question_label = $nb_question == 1 ? $nb_question.' '.get_lang('Question') : $nb_question.' '.get_lang('Questions');
$content = "<span style='float:right'>".$nb_question_label."</span>";
$content .= '<div class="sectioncomment">';
$content .= $category['description'];
$content .= '</div>';
$links = '<a href="'.api_get_self().'?action=editcategory&category_id='.$category['id'].'&'.api_get_cidreq().'">'.
Display::return_icon('edit.png', get_lang('Edit'), [], ICON_SIZE_SMALL).'</a>';
$links .= ' <a href="'.api_get_self().'?'.api_get_cidreq().'&action=deletecategory&category_id='.$category['id'].'" ';
$links .= 'onclick="return confirmDelete(\''.self::protectJSDialogQuote(get_lang('DeleteCategoryAreYouSure').'['.$rowname).'] ?\', \'id_cat'.$category['id'].'\');">';
$links .= Display::return_icon('delete.png', get_lang('Delete'), [], ICON_SIZE_SMALL).'</a>';
$html .= Display::panel($content, $category['title'].$links);
}
return $html;
}
// To allowed " in javascript dialog box without bad surprises
// replace " with two '
public function protectJSDialogQuote($in_txt)
{
$res = $in_txt;
$res = str_replace("'", "\'", $res);
$res = str_replace('"', "\'\'", $res); // super astuce pour afficher les " dans les boite de dialogue
return $res;
}
}