Survey: WIP - Add survey question dependency see BT#15488

main/inc/ajax/survey.ajax.php

@@ -3,19 +3,32 @@
 
 require_once __DIR__.'/../global.inc.php';
 
-$action = isset($_GET['a']) ? $_GET['a'] : null;
-
 $current_user_id = api_get_user_id();
 $courseId = api_get_course_int_id();
 
+$action = isset($_GET['a']) ? $_GET['a'] : null;
+$surveyId = isset($_REQUEST['survey_id']) ? $_REQUEST['survey_id'] : 0;
+$questionId = isset($_REQUEST['question_id']) ? $_REQUEST['question_id'] : 0;
+
 switch ($action) {
+    case 'load_question_options':
+        if (!api_is_allowed_to_edit(false, true)) {
+            exit;
+        }
+        $question = SurveyManager::get_question($questionId);
+        if (!empty($question) && !empty($question['answer_data'])) {
+            $optionList = [];
+            foreach ($question['answer_data'] as $answer) {
+                $optionList[$answer['iid']] = strip_tags($answer['data']);
+            }
+            echo json_encode($optionList);
+        }
+        break;
     case 'save_question':
         if (api_is_anonymous()) {
             echo '';
             break;
         }
-        $surveyId = isset($_GET['survey_id']) ? $_GET['survey_id'] : null;
-        $questionId = isset($_GET['question_id']) ? $_GET['question_id'] : null;
         $status = isset($_GET['status']) ? (int) $_GET['status'] : null;
         $userId = api_get_user_id();
 

main/survey/ch_yesno.php

@@ -1,4 +1,5 @@
 <?php
+
 /* For licensing terms, see /license.txt */
 
 /**
@@ -19,7 +20,6 @@ class ch_yesno extends survey_question
             'vertical' => get_lang('Vertical'),
         ];
         $this->getForm()->addRadio('horizontalvertical', get_lang('DisplayAnswersHorVert'), $options);
-
         $formData['horizontalvertical'] = isset($formData['horizontalvertical']) ? $formData['horizontalvertical'] : 'horizontal';
         $this->getForm()->setDefaults($formData);
 

main/survey/fillsurvey.php

@@ -491,8 +491,8 @@ if ($survey_data['form_fields'] != '' &&
             }
             $form->applyFilter('official_code', 'stripslashes');
             $form->applyFilter('official_code', 'trim');
-            if (api_get_setting('registration', 'officialcode') == 'true' &&
+            if (api_get_setting('registration', 'officialcode') === 'true' &&
-                api_get_setting('profile', 'officialcode') == 'true'
+                api_get_setting('profile', 'officialcode') === 'true'
             ) {
                 $form->addRule('official_code', get_lang('ThisFieldIsRequired'), 'required');
             }
@@ -507,7 +507,7 @@ if ($survey_data['form_fields'] != '' &&
         }
         $form->applyFilter('email', 'stripslashes');
         $form->applyFilter('email', 'trim');
-        if (api_get_setting('registration', 'email') == 'true') {
+        if (api_get_setting('registration', 'email') === 'true') {
             $form->addRule('email', get_lang('ThisFieldIsRequired'), 'required');
         }
         $form->addRule('email', get_lang('EmailWrong'), 'email');
@@ -521,7 +521,7 @@ if ($survey_data['form_fields'] != '' &&
         }
         $form->applyFilter('phone', 'stripslashes');
         $form->applyFilter('phone', 'trim');
-        if (api_get_setting('profile', 'phone') == 'true') {
+        if (api_get_setting('profile', 'phone') === 'true') {
             $form->addRule('phone', get_lang('ThisFieldIsRequired'), 'required');
         }
     }
@@ -532,7 +532,7 @@ if ($survey_data['form_fields'] != '' &&
         if (api_get_setting('profile', 'language') !== 'true') {
             $form->freeze('language');
         }
-        if (api_get_setting('profile', 'language') == 'true') {
+        if (api_get_setting('profile', 'language') === 'true') {
             $form->addRule('language', get_lang('ThisFieldIsRequired'), 'required');
         }
     }
@@ -556,6 +556,7 @@ if ($survey_data['form_fields'] != '' &&
 
 $htmlHeadXtra[] = '<script>'.api_get_language_translate_html().'</script>';
 $htmlHeadXtra[] = ch_selectivedisplay::getJs();
+$htmlHeadXtra[] = survey_question::getJs();
 
 Display::display_header(get_lang('ToolSurvey'));
 
@@ -685,8 +686,13 @@ if ((isset($_GET['show']) && $_GET['show'] != '') ||
     // As long as there is no pagebreak fount we keep adding questions to the page
     $questions_displayed = [];
     $counter = 0;
-    //$paged_questions = Session::read('paged_questions');
     $paged_questions = [];
+
+    $select = '';
+    if (true === api_get_configuration_value('survey_question_dependency')) {
+        $select = ' survey_question.parent_id, survey_question.parent_option_id, ';
+    }
+
     // If non-conditional survey
     if ($survey_data['survey_type'] == '0') {
         if (empty($paged_questions)) {
@@ -699,13 +705,13 @@ if ((isset($_GET['show']) && $_GET['show'] != '') ||
             $result = Database::query($sql);
             while ($row = Database::fetch_array($result, 'ASSOC')) {
                 if ($survey_data['one_question_per_page'] == 1) {
-                    if ($row['type'] != 'pagebreak') {
+                    if ($row['type'] !== 'pagebreak') {
                         $paged_questions[$counter][] = $row['question_id'];
                         $counter++;
                         continue;
                     }
                 } else {
-                    if ($row['type'] == 'pagebreak') {
+                    if ($row['type'] === 'pagebreak') {
                         $counter++;
                     } else {
                         $paged_questions[$counter][] = $row['question_id'];
@@ -739,6 +745,7 @@ if ((isset($_GET['show']) && $_GET['show'] != '') ||
                             survey_question.max_value,
                             survey_question_option.question_option_id,
                             survey_question_option.option_text,
+                            $select
                             survey_question_option.sort as option_sort
                         FROM $table_survey_question survey_question
                         LEFT JOIN $table_survey_question_option survey_question_option
@@ -767,6 +774,7 @@ if ((isset($_GET['show']) && $_GET['show'] != '') ||
                             survey_question.max_value,
                             survey_question_option.question_option_id,
                             survey_question_option.option_text,
+                            $select
                             survey_question_option.sort as option_sort
                             ".($allowRequiredSurveyQuestions ? ', survey_question.is_required' : '')."
                         FROM $table_survey_question survey_question
@@ -788,16 +796,19 @@ if ((isset($_GET['show']) && $_GET['show'] != '') ||
             $questions = [];
             while ($row = Database :: fetch_array($result, 'ASSOC')) {
                 // If the type is not a pagebreak we store it in the $questions array
-                if ($row['type'] != 'pagebreak') {
+                if ($row['type'] !== 'pagebreak') {
-                    $questions[$row['sort']]['question_id'] = $row['question_id'];
+                    $sort = $row['sort'];
-                    $questions[$row['sort']]['survey_id'] = $row['survey_id'];
+                    $questions[$sort]['question_id'] = $row['question_id'];
-                    $questions[$row['sort']]['survey_question'] = $row['survey_question'];
+                    $questions[$sort]['survey_id'] = $row['survey_id'];
-                    $questions[$row['sort']]['display'] = $row['display'];
+                    $questions[$sort]['survey_question'] = $row['survey_question'];
-                    $questions[$row['sort']]['type'] = $row['type'];
+                    $questions[$sort]['display'] = $row['display'];
-                    $questions[$row['sort']]['options'][$row['question_option_id']] = $row['option_text'];
+                    $questions[$sort]['type'] = $row['type'];
-                    $questions[$row['sort']]['maximum_score'] = $row['max_value'];
+                    $questions[$sort]['options'][$row['question_option_id']] = $row['option_text'];
-                    $questions[$row['sort']]['sort'] = $row['sort'];
+                    $questions[$sort]['maximum_score'] = $row['max_value'];
-                    $questions[$row['sort']]['is_required'] = $allowRequiredSurveyQuestions && $row['is_required'];
+                    $questions[$sort]['sort'] = $sort;
+                    $questions[$sort]['is_required'] = $allowRequiredSurveyQuestions && $row['is_required'];
+                    $questions[$sort]['parent_id'] = isset($row['parent_id']) ? $row['parent_id'] : 0;
+                    $questions[$sort]['parent_option_id'] = isset($row['parent_option_id']) ? $row['parent_option_id'] : 0;
                 }
                 $counter++;
             }
@@ -1182,7 +1193,7 @@ if ((isset($_GET['show']) && $_GET['show'] != '') ||
                 $questions = [];
                 while ($row = Database :: fetch_array($result, 'ASSOC')) {
                     // If the type is not a pagebreak we store it in the $questions array
-                    if ($row['type'] != 'pagebreak') {
+                    if ($row['type'] !== 'pagebreak') {
                         $questions[$row['sort']]['question_id'] = $row['question_id'];
                         $questions[$row['sort']]['survey_id'] = $row['survey_id'];
                         $questions[$row['sort']]['survey_question'] = $row['survey_question'];
@@ -1272,12 +1283,29 @@ if (isset($questions) && is_array($questions)) {
         $questionCounter = $before + 1;
     }
 
+    $form->addHtml('<div class="start-survey">');
+    $js = '';
     foreach ($questions as $key => &$question) {
         $ch_type = 'ch_'.$question['type'];
         $questionNumber = $questionCounter;
         $display = new $ch_type();
+        $parent = $question['parent_id'];
+        $parentClass = '';
+
+        if (!empty($parent)) {
+            $parentClass = ' with_parent with_parent_'.$question['question_id'];
+            $parents = survey_question::getParents($question['question_id']);
+            if (!empty($parents)) {
+                foreach($parents as $parentId) {
+                    $parentClass .= ' with_parent_only_hide_'.$parentId;
+                }
+            }
+        }
+
+        $js .= survey_question::getQuestionJs($question);
+
         // @todo move this in a function.
-        $form->addHtml('<div class="survey_question '.$ch_type.'">');
+        $form->addHtml('<div class="survey_question '.$ch_type.' '.$parentClass.'">');
         $form->addHtml('<div style="float:left; font-weight: bold; margin-right: 5px;"> '.$questionNumber.'. </div>');
         $form->addHtml('<div>'.Security::remove_XSS($question['survey_question']).'</div> ');
 
@@ -1309,6 +1337,8 @@ if (isset($questions) && is_array($questions)) {
         $form->addHtml('</div>');
         $questionCounter++;
     }
+
+    $form->addHtml($js);
 }
 
 $form->addHtml('<div class="start-survey">');

main/survey/preview.php

@@ -47,7 +47,7 @@ $interbreadcrumb[] = [
 
 $htmlHeadXtra[] = '<script>'.api_get_language_translate_html().'</script>';
 $htmlHeadXtra[] = ch_selectivedisplay::getJs();
-
+$htmlHeadXtra[] = survey_question::getJs();
 $show = 0;
 Display::display_header(get_lang('SurveyPreview'));
 
@@ -111,6 +111,10 @@ if (isset($_GET['show'])) {
     }
 
     if (array_key_exists($_GET['show'], $paged_questions)) {
+        $select = '';
+        if (true === api_get_configuration_value('survey_question_dependency')) {
+            $select = ' survey_question.parent_id, survey_question.parent_option_id, ';
+        }
         $sql = "SELECT
                     survey_question.question_id,
                     survey_question.survey_id,
@@ -121,6 +125,7 @@ if (isset($_GET['show'])) {
                     survey_question.max_value,
                     survey_question_option.question_option_id,
                     survey_question_option.option_text,
+                    $select
                     survey_question_option.sort as option_sort
                     ".($allowRequiredSurveyQuestions ? ', survey_question.is_required' : '')."
                 FROM $table_survey_question survey_question
@@ -138,7 +143,7 @@ if (isset($_GET['show'])) {
         $result = Database::query($sql);
         while ($row = Database::fetch_array($result)) {
             // If the type is not a pagebreak we store it in the $questions array
-            if ($row['type'] != 'pagebreak') {
+            if ($row['type'] !== 'pagebreak') {
                 $sort = $row['sort'];
                 $questions[$sort]['question_id'] = $row['question_id'];
                 $questions[$sort]['survey_id'] = $row['survey_id'];
@@ -147,6 +152,8 @@ if (isset($_GET['show'])) {
                 $questions[$sort]['type'] = $row['type'];
                 $questions[$sort]['options'][$row['question_option_id']] = $row['option_text'];
                 $questions[$sort]['maximum_score'] = $row['max_value'];
+                $questions[$sort]['parent_id'] = isset($row['parent_id']) ? $row['parent_id'] : 0;
+                $questions[$sort]['parent_option_id'] = isset($row['parent_option_id']) ? $row['parent_option_id'] : 0;
                 $questions[$row['sort']]['is_required'] = $allowRequiredSurveyQuestions && $row['is_required'];
             }
         }
@@ -183,16 +190,34 @@ if (is_array($questions) && count($questions) > 0) {
         }
         $counter = $before + 1;
     }
+
+    $js = '';
     foreach ($questions as $key => &$question) {
         $ch_type = 'ch_'.$question['type'];
         $display = survey_question::createQuestion($question['type']);
-        $form->addHtml('<div class="survey_question '.$ch_type.'">');
+        $parent = $question['parent_id'];
+        $parentClass = '';
+
+        if (!empty($parent)) {
+            $parentClass = ' with_parent with_parent_'.$question['question_id'];
+            $parents = survey_question::getParents($question['question_id']);
+            if (!empty($parents)) {
+                foreach($parents as $parentId) {
+                    $parentClass .= ' with_parent_only_hide_'.$parentId;
+                }
+            }
+        }
+
+        $js .= survey_question::getQuestionJs($question);
+
+        $form->addHtml('<div class="survey_question '.$ch_type.' '.$parentClass.'">');
         $form->addHtml('<div style="float:left; font-weight: bold; margin-right: 5px;"> '.$counter.'. </div>');
         $form->addHtml('<div>'.Security::remove_XSS($question['survey_question']).'</div> ');
         $display->render($form, $question);
         $form->addHtml('</div>');
         $counter++;
     }
+    $form->addHtml($js);
 }
 $form->addHtml('<div class="start-survey">');
 

main/survey/question.php

@@ -141,7 +141,6 @@ if (isset($_GET['question_id']) && !empty($_GET['question_id'])) {
 }
 
 $formData = $surveyQuestion->preSave($formData);
-
 $surveyQuestion->createForm($surveyData, $formData);
 $surveyQuestion->getForm()->setDefaults($formData);
 $surveyQuestion->renderForm();

main/survey/survey.lib.php

@@ -993,8 +993,12 @@ class SurveyManager
         $course_id = api_get_course_int_id();
         $question_id = (int) $question_id;
 
+        if (empty($question_id)) {
+            return [];
+        }
+
         $sql = "SELECT * FROM $tbl_survey_question
-                WHERE c_id = $course_id AND question_id='".$question_id."'
+                WHERE c_id = $course_id AND question_id = $question_id
                 ORDER BY `sort` ";
 
         $sqlOption = "  SELECT * FROM $table_survey_question_option
@@ -1006,10 +1010,10 @@ class SurveyManager
             $table_survey_question_option = Database::get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
 
             $sql = "SELECT * FROM $tbl_survey_question
-                    WHERE question_id='".$question_id."'
+                    WHERE question_id = $question_id
                     ORDER BY `sort` ";
             $sqlOption = "SELECT * FROM $table_survey_question_option
-                          WHERE question_id='".$question_id."'
+                          WHERE question_id = $question_id
                           ORDER BY `sort` ";
         }
 
@@ -1018,6 +1022,8 @@ class SurveyManager
         $row = Database::fetch_array($result, 'ASSOC');
 
         $return['survey_id'] = $row['survey_id'];
+        $return['parent_id'] = isset($row['parent_id']) ? $row['parent_id'] : 0;
+        $return['parent_option_id'] = isset($row['parent_option_id']) ? $row['parent_option_id'] : 0;
         $return['question_id'] = $row['question_id'];
         $return['type'] = $row['type'];
         $return['question'] = $row['survey_question'];
@@ -1044,10 +1050,8 @@ class SurveyManager
             /** @todo this should be renamed to options instead of answers */
             $return['answers'][] = $row['option_text'];
             $return['values'][] = $row['value'];
-
             $return['answer_data'][$counter]['data'] = $row['option_text'];
             $return['answer_data'][$counter]['iid'] = $row['iid'];
-
             /** @todo this can be done more elegantly (used in reporting) */
             $return['answersid'][] = $row['question_option_id'];
             $counter++;
@@ -1163,9 +1167,10 @@ class SurveyManager
             if (!$empty_answer) {
                 // Table definitions
                 $tbl_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
+                $surveyId = (int) $form_content['survey_id'];
 
                 // Getting all the information of the survey
-                $survey_data = self::get_survey($form_content['survey_id']);
+                $survey_data = self::get_survey($surveyId);
 
                 // Storing the question in the shared database
                 if (is_numeric($survey_data['survey_share']) && $survey_data['survey_share'] != 0) {
@@ -1178,7 +1183,7 @@ class SurveyManager
                     // Finding the max sort order of the questions in the given survey
                     $sql = "SELECT max(sort) AS max_sort
 					        FROM $tbl_survey_question
-                            WHERE c_id = $course_id AND survey_id='".intval($form_content['survey_id'])."'";
+                            WHERE c_id = $course_id AND survey_id = $surveyId ";
                     $result = Database::query($sql);
                     $row = Database::fetch_array($result, 'ASSOC');
                     $max_sort = $row['max_sort'];
@@ -1200,7 +1205,7 @@ class SurveyManager
 
                     $params = [
                         'c_id' => $course_id,
-                        'survey_id' => $form_content['survey_id'],
+                        'survey_id' => $surveyId,
                         'survey_question' => $form_content['question'],
                         'survey_question_comment' => $questionComment,
                         'type' => $form_content['type'],
@@ -1210,6 +1215,19 @@ class SurveyManager
                         'max_value' => $maxScore,
                     ];
 
+                    if (api_get_configuration_value('survey_question_dependency')) {
+                        $params['parent_id'] = 0;
+                        $params['parent_option_id'] = 0;
+                        if (isset($form_content['parent_id']) &&
+                            isset($form_content['parent_option_id']) &&
+                            !empty($form_content['parent_id']) &&
+                            !empty($form_content['parent_option_id'])
+                        ) {
+                            $params['parent_id'] = $form_content['parent_id'];
+                            $params['parent_option_id'] = $form_content['parent_option_id'];
+                        }
+                    }
+
                     if (api_get_configuration_value('allow_required_survey_questions')) {
                         $params['is_required'] = isset($form_content['is_required']);
                     }
@@ -1255,6 +1273,19 @@ class SurveyManager
                         $params['is_required'] = isset($form_content['is_required']);
                     }
 
+                    if (api_get_configuration_value('survey_question_dependency')) {
+                        $params['parent_id'] = 0;
+                        $params['parent_option_id'] = 0;
+                        if (isset($form_content['parent_id']) &&
+                            isset($form_content['parent_option_id']) &&
+                            !empty($form_content['parent_id']) &&
+                            !empty($form_content['parent_option_id'])
+                        ) {
+                            $params['parent_id'] = $form_content['parent_id'];
+                            $params['parent_option_id'] = $form_content['parent_option_id'];
+                        }
+                    }
+
                     $params = array_merge($params, $extraParams);
                     Database::update(
                         $tbl_survey_question,

main/survey/survey_question.php

@@ -16,13 +16,27 @@ class survey_question
     /**
      * @param array $surveyData
      */
-    public function addParentMenu(FormValidator $form, $surveyData)
+    public function addParentMenu($formData, FormValidator $form, $surveyData)
     {
         $surveyId = $surveyData['survey_id'];
+        $questionId = isset($formData['question_id']) ? $formData['question_id'] : 0;
+        $parentId = isset($formData['parent_id']) ? $formData['parent_id'] : 0;
+        $optionId = isset($formData['parent_option_id']) ? $formData['parent_option_id'] : 0;
         $questions = SurveyManager::get_questions($surveyId);
 
-        $options = [];
+        $newQuestionList = [];
         foreach ($questions as $question) {
+            $newQuestionList[$question['sort']] = $question;
+        }
+        ksort($newQuestionList);
+
+        $options = [];
+        foreach ($newQuestionList as $question) {
+            if (!empty($questionId)) {
+                if ($question['question_id'] == $questionId) {
+                    break;
+                }
+            }
             $options[$question['question_id']] = strip_tags($question['question']);
         }
         $form->addSelect(
@@ -31,32 +45,52 @@ class survey_question
             $options,
             ['id' => 'parent_id', 'placeholder' => get_lang('SelectAnOption')]
         );
-        $url = api_get_path(WEB_AJAX_PATH).'survey.ajax.php?'.api_get_cidreq();
+        $url = api_get_path(WEB_AJAX_PATH).
+            'survey.ajax.php?'.api_get_cidreq().'&a=load_question_options&survey_id='.$surveyId;
         $form->addHtml('
             <script>
                 $(function() {
                     $("#parent_id").on("change", function() {
                         var questionId = $(this).val()
-                        var params = {
+                        var $select = $("#parent_option_id");
-                            "a": "load_question_options",
+                        $select.empty();
-                            "survey_id": "'.$surveyId.'",
+
-                            "question_id": questionId,
+                        if (questionId === "") {
-                        };
+                              $("#option_list").hide();
-                        $.ajax({
+                        } else {
-                            type: "GET",
+                            $.getJSON({
-                            url: "'.$url.'",
+                                url: "'.$url.'" + "&question_id=" + questionId,
-                            data: params,
-                            async: false,
                                 success: function(data) {
-                                $("#parent_options").html(data);
+                                    $("#option_list").show();
+                                    $.each(data, function(key, value) {
+                                        $("<option>").val(key).text(value).appendTo($select);
+                                    });
                                 }
                             });
+                        }
                     });
                 });
             </script>
         ');
-        $form->addHtml('<div id="parent_options"></div>');
+
-        $form->addHidden('option_id', 0);
+        $style = 'display:none';
+        $options = [ ];
+        if (!empty($optionId) && !empty($parentId)) {
+            $parentData = SurveyManager::get_question($parentId);
+            $style = '';
+            foreach ($parentData['answer_data'] as $answer) {
+                $options[$answer['iid']] = strip_tags($answer['data']);
+            }
+        }
+
+        $form->addHtml('<div id="option_list" style="'.$style.'">');
+        $form->addSelect(
+            'parent_option_id',
+            get_lang('Option'),
+            $options,
+            ['id' => 'parent_option_id', 'disable_js' => true]
+        );
+        $form->addHtml('</div>');
     }
 
     /**
@@ -118,6 +152,7 @@ class survey_question
         }
 
         $questionComment = '';
+        $allowParent = false;
         switch ($type) {
             case 'open':
                 $toolName = get_lang('Open');
@@ -125,12 +160,15 @@ class survey_question
                 break;
             case 'yesno':
                 $toolName = get_lang('YesNo');
+                $allowParent = true;
                 break;
             case 'multiplechoice':
                 $toolName = get_lang('UniqueSelect');
+                $allowParent = true;
                 break;
             case 'multipleresponse':
                 $toolName = get_lang('MultipleResponse');
+                $allowParent = true;
                 break;
             case 'selectivedisplay':
                 $toolName = get_lang('SurveyQuestionSelectiveDisplay');
@@ -138,12 +176,15 @@ class survey_question
                 break;
             case 'multiplechoiceother':
                 $toolName = get_lang('SurveyMultipleAnswerWithOther');
-                //$questionComment = get_lang('SurveyQuestionSelectiveDisplayComment');
                 break;
             default:
                 $toolName = get_lang(api_ucfirst($type));
         }
 
+        if (false === api_get_configuration_value('survey_question_dependency')) {
+            $allowParent = false;
+        }
+
         $icon = Display::return_icon(
                 SurveyManager::icon_question($type),
                 $toolName,
@@ -182,6 +223,10 @@ class survey_question
             $form->addCheckBox('is_required', get_lang('IsMandatory'), get_lang('Yes'));
         }
 
+        if ($allowParent) {
+            $this->addParentMenu($formData, $form, $surveyData);
+        }
+
         if ($surveyData['survey_type'] == 1) {
             $table_survey_question_group = Database::get_course_table(TABLE_SURVEY_QUESTION_GROUP);
             $sql = 'SELECT id, name FROM '.$table_survey_question_group.'
@@ -477,6 +522,90 @@ class survey_question
         );
     }
 
+    public static function getJs()
+    {
+        return '
+            <style>
+            .with_parent {
+                display: none;
+            }
+            </style>
+            <script>
+            $(function() {
+            });
+            </script>';
+    }
+
+    public static function getParents($questionId, $list = [])
+    {
+        $courseId = api_get_course_int_id();
+        $questionId = (int) $questionId;
+
+        $table = Database::get_course_table(TABLE_SURVEY_QUESTION);
+        $sql = "SELECT parent_id FROM $table
+                WHERE c_id = $courseId AND question_id = $questionId ";
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result, 'ASSOC');
+        if ($row && !empty($row['parent_id'])) {
+            $list[] = $row['parent_id'];
+            $list = self::getParents($row['parent_id'], $list);
+        }
+
+        return $list;
+    }
+
+    public static function getQuestionJs($question)
+    {
+        $list = self::getDependecy($question);
+        if (empty($list)) {
+            return '';
+        }
+
+        $js = '';
+        $questionId = $question['question_id'];
+        $newList = [];
+        foreach ($list as $child) {
+            $childQuestionId = $child['question_id'];
+            $optionId = $child['parent_option_id'];
+            $newList[$optionId] = $childQuestionId;
+        }
+
+        $js .= '
+            <script>
+            $(function() {
+                var list = '.json_encode($newList).';
+                $("input[name=question'.$questionId.']").on("click", function() {
+                    $.each(list, function(index, value) {
+                        $(".with_parent_" + value).hide();
+                        $(".with_parent_" + value).find("input").prop("checked", false);
+                        $(".with_parent_only_hide_" + value).hide();
+                    });
+
+                    var questionId = $(this).val();
+                    var questionToShow = list[questionId];
+                    $(".with_parent_" + questionToShow).show();
+                });
+            });
+            </script>';
+
+        return $js;
+    }
+
+    public static function getDependecy($question)
+    {
+        $table = Database::get_course_table(TABLE_SURVEY_QUESTION);
+        $questionId = $question['question_id'];
+        $courseId = api_get_course_int_id();
+
+        // Getting the information of the question
+        $sql = "SELECT * FROM $table
+		        WHERE c_id = $courseId AND parent_id = $questionId ";
+        $result = Database::query($sql);
+        $row = Database::store_result($result, 'ASSOC');
+
+        return $row;
+    }
+
     /**
      * @param array $questionData
      * @param array $answers