Check if user exists

Author: Mariusz08

forum/qa-plugin/send-pw-on-register/qa-pw-admin.php

@@ -7,11 +7,24 @@ public function admin_form(&$qa_content)
         $isSaved = false;
 
         if (qa_clicked('sendPwMessageOnRegister_save')) {
-            qa_opt('sendPwMessageOnRegister_messageContent', qa_post_text('messageContent'));
-            qa_opt('sendPwMessageOnRegister_enabled', (bool) qa_post_text('enablePlugin'));
-            qa_opt('sendPwMessageOnRegister_botId', qa_post_text('botId'));
+            $canSave = (bool) qa_post_text('enablePlugin');
 
-            $isSaved = true;
+            if (empty(qa_post_text('messageContent'))) {
+                $canSave = false;
+            }
+            
+            require_once QA_INCLUDE_DIR . 'db/users.php';
+            
+            if ([] === qa_db_user_get_userid_handles(qa_post_text('botId'))) {
+                $canSave = false;
+            }
+            
+            if ($canSave) {
+                qa_opt('sendPwMessageOnRegister_messageContent', qa_post_text('messageContent'));
+                qa_opt('sendPwMessageOnRegister_enabled', (bool) qa_post_text('enablePlugin'));
+                qa_opt('sendPwMessageOnRegister_botId', qa_post_text('botId'));
+                $isSaved = true;
+            }
         }
 
         return $this->prepareAdminForm($isSaved);