Course categories: Add show courses button BT#18812

main/admin/course_category.php

@@ -92,6 +92,33 @@ if (!empty($action)) {
         exit();
     }
 }
+$htmlHeadXtra[] = '
+<script>
+    function showCourses(button, categoryId) {
+        event.preventDefault();
+        let url = button.getAttribute("href");
+        let tableId = "cat_" + categoryId;
+        let exists = button.parentNode.parentNode.parentNode.querySelector("#" + tableId);
+        if (exists !== null) {
+            button.parentNode.parentNode.parentNode.removeChild(exists);
+            return ;
+        }
+
+        $.ajax({
+            url: url,
+            type: "GET",
+            success: function(result) {
+                let row = document.createElement("tr");
+                row.setAttribute("id", tableId);
+                let cell = document.createElement("td");
+                cell.setAttribute("colspan", "4");
+                cell.innerHTML= result;
+                row.appendChild(cell);
+                button.parentNode.parentNode.parentNode.insertBefore(row, button.parentNode.parentNode.nextSibling);
+            }
+        });
+    }
+</script>';
 
 $tool_name = get_lang('AdminCategories');
 $interbreadcrumb[] = [

main/inc/ajax/course_category.ajax.php

@@ -0,0 +1,42 @@
+<?php
+
+/* For licensing terms, see /license.txt */
+
+/**
+ * Responses to AJAX calls.
+ */
+require_once __DIR__.'/../global.inc.php';
+
+api_protect_admin_script();
+
+$action = $_REQUEST['a'];
+
+switch ($action) {
+    case 'show_courses':
+        $categoryId = (int) $_REQUEST['id'];
+        $categoryInfo = CourseCategory::getCategoryById($categoryId);
+        if (!empty($categoryInfo)) {
+            $courses = CourseCategory::getCoursesInCategory($categoryInfo['code']);
+
+            $table = new HTML_Table(['class' => 'table table-hover table-striped data_table']);
+            $headers = [
+                get_lang('Name'),
+            ];
+            $row = 0;
+            $column = 0;
+            foreach ($headers as $header) {
+                $table->setHeaderContents($row, $column, $header);
+                $column++;
+            }
+            $result = '';
+            foreach ($courses as $course) {
+                $row++;
+                $table->setCellContents($row, 0, $course['title']);
+            }
+
+            echo $table->toHtml();
+            exit;
+        }
+        break;
+}
+exit;

main/inc/lib/course_category.lib.php

@@ -477,14 +477,14 @@ class CourseCategory
             }
             $row++;
             $mainUrl = api_get_path(WEB_CODE_PATH).'admin/course_category.php?category='.$categorySource;
-
+            $ajaxUrl = api_get_path(WEB_AJAX_PATH).'course_category.ajax.php';
             $editIcon = Display::return_icon(
                 'edit.png',
                 get_lang('EditNode'),
                 null,
                 ICON_SIZE_SMALL
             );
-            $exportIcon = Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), '');
+            $exportIcon = Display::return_icon('export_csv.png', get_lang('ExportAsCSV'));
 
             $deleteIcon = Display::return_icon(
                 'delete.png',
@@ -499,15 +499,29 @@ class CourseCategory
                 ICON_SIZE_SMALL
             );
 
+            $showCoursesIcon = Display::return_icon(
+                'course.png',
+                get_lang('Courses'),
+                null,
+                ICON_SIZE_SMALL
+            );
+
             $urlId = api_get_current_access_url_id();
             foreach ($categories as $category) {
+                $categoryId = $category['id'];
                 $editUrl = $mainUrl.'&id='.$category['code'].'&action=edit';
                 $moveUrl = $mainUrl.'&id='.$category['code'].'&action=moveUp&tree_pos='.$category['tree_pos'];
                 $deleteUrl = $mainUrl.'&id='.$category['code'].'&action=delete';
-                $exportUrl = $mainUrl.'&id='.$category['id'].'&action=export';
+                $exportUrl = $mainUrl.'&id='.$categoryId.'&action=export';
+                $showCoursesUrl = $ajaxUrl.'?id='.$categoryId.'&a=show_courses';
 
                 $actions = [];
                 if ($urlId == $category['access_url_id']) {
+                    $actions[] = Display::url(
+                        $showCoursesIcon,
+                        $showCoursesUrl,
+                        ['onclick' => 'showCourses(this, '.$categoryId.')']
+                    );
                     $actions[] = Display::url($editIcon, $editUrl);
                     $actions[] = Display::url($moveIcon, $moveUrl);
                     $actions[] = Display::url($exportIcon, $exportUrl);