getCategory($id); $this->id = $obj->id; $this->name = $obj->name; $this->description = $obj->description; } else { $this->id = $id; $this->name = $name; $this->description = $description; } } /** * return the TestCategory object with id=in_id * @param int $id * * @return TestCategory */ public function getCategory($id) { $table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY); $id = intval($id); $sql = "SELECT * FROM $table WHERE id = $id AND c_id=".api_get_course_int_id(); $res = Database::query($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; } /** * add TestCategory in the database if name doesn't already exists */ public function addCategoryInBDD() { $table = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY); $name = Database::escape_string($this->name); $description = Database::escape_string($this->description); // check if name already exists $sql = "SELECT count(*) AS nb FROM $table WHERE title = '$name' AND c_id=".api_get_course_int_id(); $result = Database::query($sql); $data_verif = Database::fetch_array($result); // lets add in BDD if not the same name if ($data_verif['nb'] <= 0) { $c_id = api_get_course_int_id(); $params = [ 'c_id' => $c_id, 'title' => $name, 'description' => $description ]; $new_id = Database::insert($table, $params); if ($new_id) { $sql = "UPDATE $table SET id = iid WHERE iid = $new_id"; Database::query($sql); // add test_category in item_property table $course_id = api_get_course_int_id(); $course_info = api_get_course_info_by_id($course_id); api_item_property_update( $course_info, TOOL_TEST_CATEGORY, $new_id, 'TestCategoryAdded', api_get_user_id() ); } return $new_id; } else { return false; } } /** * Removes the category from the database * if there were question in this category, the link between question and category is removed */ public function removeCategory($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 */ public function modifyCategory() { $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); if ($cat) { $sql = "UPDATE $table SET title = '$name', description = '$description' WHERE id = $id AND c_id=".api_get_course_int_id(); Database::query($sql); // item_property update $course_id = api_get_course_int_id(); $course_info = api_get_course_info_by_id($course_id); api_item_property_update( $course_info, 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); $in_id = intval($this->id); $sql = "SELECT count(*) AS nb FROM $table WHERE category_id=$in_id AND c_id=".api_get_course_int_id(); $res = Database::query($sql); $row = Database::fetch_array($res); return $row['nb']; } /** * 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) * * @param string $in_field * @param int $courseId * @return array */ public static function getCategoryListInfo($in_field = '', $courseId = 0) { if (empty($courseId)) { $courseId = api_get_course_int_id(); } $table = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY); $in_field = Database::escape_string($in_field); $categories = array(); if ($in_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 $in_field FROM $table WHERE c_id = $courseId ORDER BY $in_field ASC"; $res = Database::query($sql); while ($row = Database::fetch_array($res)) { $categories[] = $row[$in_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, $courseId = 0) { if (empty($courseId)) { $courseId = api_get_course_int_id(); } $table = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY); $questionId = intval($questionId); $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 = $data['category_id']; } return $result; } /** * true if question id has a category * * @param int $questionId * @return bool */ public static function isQuestionHasCategory($questionId) { if (TestCategory::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. Return the category id, "" if none */ public static function getCategoryNameForQuestion( $questionId, $courseId = 0 ) { if (empty($courseId)) { $courseId = api_get_course_int_id(); } $categoryId = TestCategory::getCategoryForQuestion($questionId, $courseId); $result = ''; $table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY); $categoryId = intval($categoryId); $sql = "SELECT title FROM $table WHERE id = $categoryId AND c_id = $courseId"; $res = Database::query($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 in the current course * input : test_id * return : array of category id (integer) * hubert.borderiou 07-04-2011 * @param int $exerciseId * * @return array */ public static function getListOfCategoriesIDForTest($exerciseId) { // parcourir les questions d'un test, recup les categories uniques dans un tableau $exercise = new Exercise(); $exercise->read($exerciseId, false); $categoriesInExercise = $exercise->getQuestionWithCategories(); // the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ??? $categories = array(); if (!empty($categoriesInExercise)) { foreach ($categoriesInExercise as $category) { $categories[$category['id']] = $category; } } return $categories; } /** * @param Exercise $exercise_obj * @return array */ public static function getListOfCategoriesIDForTestObject(Exercise $exercise_obj) { // parcourir les questions d'un test, recup les categories uniques dans un tableau $categories_in_exercise = array(); // $question_list = $exercise_obj->getQuestionList(); $question_list = $exercise_obj->getQuestionOrderedListByName(); // the array given by selectQuestionList start at indice 1 and not at indice 0 !!! ??? foreach ($question_list as $questionInfo) { $question_id = $questionInfo['question_id']; $category_list = self::getCategoryForQuestion($question_id); if (is_numeric($category_list)) { $category_list = array($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 $categories_in_exercise; } /** * Return the list of differents categories NAME for a test * @param int exercise id * @param bool * @return integer of string * * @author function rewrote by jmontoya */ public static function getListOfCategoriesNameForTest($exercise_id, $grouped_by_category = true) { $result = array(); $categories = self::getListOfCategoriesIDForTest($exercise_id, $grouped_by_category); foreach ($categories as $catInfo) { $categoryId = $catInfo['id']; if (!empty($categoryId)) { $result[$categoryId] = array( 'title' => $catInfo['title'], //'parent_id' => $catInfo['parent_id'], 'parent_id' => '', 'c_id' => $catInfo['c_id'] ); } } return $result; } /** * @param Exercise $exercise_obj * @return array */ public static function getListOfCategoriesForTest(Exercise $exercise_obj) { $result = array(); $categories = self::getListOfCategoriesIDForTestObject($exercise_obj); 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(TestCategory::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); $i++) { if (TestCategory::getCategoryForQuestion($questionList[$i]) == $categoryId) { $nbCatResult++; } } return $nbCatResult; } /** * return the number of question for a test using random by category * input : test_id, number of random question (min 1) * hubert.borderiou 07-04-2011 * question without categories are not counted */ public static function getNumberOfQuestionRandomByCategory($exerciseId, $in_nbrandom) { $nbquestionresult = 0; $categories = TestCategory::getListOfCategoriesIDForTest($exerciseId); foreach ($categories as $category) { if (empty($category['id'])) { continue; } $nbQuestionInThisCat = TestCategory::getNumberOfQuestionsInCategoryForTest($exerciseId, $category['id']); if ($nbQuestionInThisCat > $in_nbrandom) { $nbquestionresult += $in_nbrandom; } else { $nbquestionresult += $nbQuestionInThisCat; } } return $nbquestionresult; } /** * Return an array (id=>name) * tabresult[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 = TestCategory::getCategoryListInfo('', $courseId); $tabresult = array('0' => get_lang('NoCategorySelected')); for ($i=0; $i < count($categories); $i++) { $tabresult[$categories[$i]->id] = $categories[$i]->name; } return $tabresult; } /** * 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 exercise * @param array $check_in_question_list * @param array $categoriesAddedInExercise * * @param int $exerciseId * @return array */ static function getQuestionsByCat( $exerciseId, $check_in_question_list = array(), $categoriesAddedInExercise = array() ) { $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) INNER JOIN $categoryTable c ON (c.id = qrc.category_id) INNER JOIN $tableQuestion q ON (q.id = qrc.question_id ) WHERE exercice_id = $exerciseId AND qrc.c_id = $courseId "; $res = Database::query($sql); $categories = array(); while ($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']] = array(); } $categories[$data['category_id']][] = $data['question_id']; } if (!empty($categoriesAddedInExercise)) { $newCategoryList = array(); foreach ($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; } /** * return a tab of $in_number random elements of $in_tab */ public static function getNElementsFromArray($in_tab, $in_number) { $list = $in_tab; shuffle($list); if ($in_number < count($list)) { $list = array_slice($list, 0, $in_number); } return $list; } /** * @param int $questionId * @param int $in_display_category_name */ public static function displayCategoryAndTitle($questionId, $in_display_category_name = 1) { echo self::returnCategoryAndTitle($questionId, $in_display_category_name); } /** * @param int $questionId * @param int $in_display_category_name * @return null|string */ public static function returnCategoryAndTitle($questionId, $in_display_category_name = 1) { $is_student = !(api_is_allowed_to_edit(null,true) || api_is_session_admin()); // @todo fix $_SESSION['objExercise'] $objExercise = Session::read('objExercise'); if (!empty($objExercise)) { $in_display_category_name = $objExercise->display_category_name; } $content = null; if (TestCategory::getCategoryNameForQuestion($questionId) != '' && ($in_display_category_name == 1 || !$is_student)) { $content .= '
' . get_lang('Categories') . ' | '; $return .= '' . get_lang('Number') . ' |
---|---|
'; //$return .= Display::div(isset($category['parent_path']) ? $category['parent_path'] : ''); $return .= Display::div($category['name']); $return .= ' | '; $return .= ''; $value = isset($saved_categories) && isset($saved_categories[$cat_id]) ? $saved_categories[$cat_id]['count_questions'] : -1; $return .= ''; $return .= ' | '; $return .= '