fix: empty values are allowed

ajax/backend/customer/instantSave.php

@@ -25,21 +25,27 @@ function ($userId, $data) {
             $Address = $User->addAddress([]);
         }
 
-        if (!empty($data['username'])) {
+        if (isset($data['username'])) {
             $User->setAttribute('username', $data['username']);
         }
 
-        if (!empty($data['firstname'])) {
+        if (isset($data['firstname'])) {
             $User->setAttribute('firstname', $data['firstname']);
             $Address->setAttribute('firstname', $data['firstname']);
         }
 
-        if (!empty($data['lastname'])) {
+        if (isset($data['lastname'])) {
             $User->setAttribute('lastname', $data['lastname']);
             $Address->setAttribute('lastname', $data['lastname']);
         }
 
-        if (!empty($data['email'])) {
+        if (isset($data['email'])) {
+            if (empty($data['email'])) {
+                throw new QUI\Exception(
+                    QUI::getLocale()->get('quiqqer/customer', 'exception.empty.mail.not.allowed')
+                );
+            }
+
             $User->setAttribute('email', $data['email']);
             $Address->editMail(0, $data['email']);
         }

bin/backend/controls/Administration.js

@@ -239,8 +239,8 @@ define('package/quiqqer/customer/bin/backend/controls/Administration', [
                 dataIndex: 'lastname',
                 dataType : 'string',
                 width    : 150,
-                editable : editable,
-                className: editable ? 'clickable' : ''
+                editable : true,
+                className: 'clickable'
             });
 
             columnModel.push({
@@ -248,16 +248,16 @@ define('package/quiqqer/customer/bin/backend/controls/Administration', [
                 dataIndex: 'email',
                 dataType : 'string',
                 width    : 150,
-                editable : editable,
-                className: editable ? 'clickable' : ''
+                editable : true,
+                className: 'clickable'
             });
 
             columnModel.push({
                 header   : QUILocale.get('quiqqer/quiqqer', 'group'),
                 dataIndex: 'usergroup_display',
                 dataType : 'string',
-                width    : 150,
-                className: editable ? 'clickable' : ''
+                editable : true,
+                className: 'clickable'
             });
 
             columnModel.push({

locale.xml

@@ -210,6 +210,11 @@ Best regards
 </p>
 ]]></en>
         </locale>
+
+        <locale name="exception.empty.mail.not.allowed">
+            <de><![CDATA[Eine leere E-Mail Adresse ist nicht erlaubt.]]></de>
+            <en><![CDATA[A blank email address is not allowed.]]></en>
+        </locale>
     </groups>
 
     <groups name="quiqqer/customer" datatype="js">