From 45c3fa5999cd8a429c708a6f38a2f1d3301ddfbb Mon Sep 17 00:00:00 2001
From: yurabakhtin <yurybakh@gmail.com>
Date: Mon, 28 Dec 2020 15:32:01 +0300
Subject: [PATCH] Fix saving a group without Default Space

---
 .../humhub/modules/user/models/forms/EditGroupForm.php | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/protected/humhub/modules/user/models/forms/EditGroupForm.php b/protected/humhub/modules/user/models/forms/EditGroupForm.php
index 8189a4f14c..4654b32b38 100644
--- a/protected/humhub/modules/user/models/forms/EditGroupForm.php
+++ b/protected/humhub/modules/user/models/forms/EditGroupForm.php
@@ -52,10 +52,12 @@ class EditGroupForm extends Group
 
         $existingSpaceIds = GroupSpace::find()->where(['group_id' => $this->id])->select('space_id')->column();
         $newSpaceIds = [];
-        foreach ($this->defaultSpaceGuid as $spaceGuid) {
-            $space = Space::findOne(['guid' => $spaceGuid]);
-            if ($space !== null) {
-                $newSpaceIds[] = $space->id;
+        if (is_array($this->defaultSpaceGuid)) {
+            foreach ($this->defaultSpaceGuid as $spaceGuid) {
+                $space = Space::findOne(['guid' => $spaceGuid]);
+                if ($space !== null) {
+                    $newSpaceIds[] = $space->id;
+                }
             }
         }