Fixing group import when there are categories see BT#7682

main/group/example.csv

@@ -0,0 +1,5 @@
+"category";"group";"description";"announcements_state";"calendar_state";"chat_state";"doc_state";"forum_state";"work_state";"wiki_state";"max_student";"self_reg_allowed";"self_unreg_allowed";"groups_per_user";
+"Category 1";"";"This is a category";"2";"2";"2";"2";"2";"2";"2";"0";"0";"0";"0";
+"";"This is a group with no category";"";"2";"2";"2";"2";"2";"2";"2";"0";"0";"0"
+"Category 1";"This is a group in a Category 1";"";"2";"2";"2";"2";"2";"2";"2";"0";"0";"0"
+

main/group/import.php

@@ -2,7 +2,7 @@
 /* For licensing terms, see /license.txt */
 
 // Name of the language file that needs to be included
-$language_file = 'group';
+$language_file = array('group', 'admin', 'registration');
 
 require_once '../inc/global.inc.php';
 $this_section = SECTION_COURSES;
@@ -31,6 +31,7 @@ $form->addElement('header', get_lang('ImportGroups'));
 $form->addElement('file', 'file', get_lang('File'));
 $form->addRule('file', get_lang('ThisFieldIsRequired'), 'required');
 $form->addElement('checkbox', 'delete_not_in_file', null, get_lang('DeleteItemsNotInFile'));
+$form->addElement('label', null, Display::url(get_lang('ExampleCSVFile'), api_get_path(WEB_CODE_PATH).'group/example.csv'));
 $form->addElement('button', 'submit', get_lang('Import'));
 
 if ($form->validate()) {
@@ -42,7 +43,6 @@ if ($form->validate()) {
         if (!empty($result)) {
             $html = null;
             foreach ($result as $status => $data) {
-
                 if (empty($data['category']) && empty($data['group'])) {
                     continue;
                 }
@@ -66,6 +66,7 @@ if ($form->validate()) {
         }
     }
 }
+
 $form->display();
 
 Display::display_footer();

main/inc/lib/groupmanager.lib.php

@@ -2153,6 +2153,8 @@ class GroupManager
             'groups' => array()
         );
 
+        $groupCategories = GroupManager :: get_categories();
+
         foreach ($groupData as $data) {
             $isCategory = empty($data['group']) ? true : false;
 
@@ -2209,9 +2211,15 @@ class GroupManager
 
                 if (empty($groupInfo)) {
                     $categoryInfo = self::getCategoryByTitle($data['category']);
+
                     $categoryId = null;
                     if (!empty($categoryInfo)) {
                         $categoryId = $categoryInfo['id'];
+                    } else {
+                        if (!empty($groupCategories) && isset($groupCategories[0])) {
+                            $defaultGroupCategory = $groupCategories[0];
+                            $categoryId = $defaultGroupCategory['id'];
+                        }
                     }
 
                     // Add