From 1e8e8396130ed97515d77f3f168d6c4628f70b38 Mon Sep 17 00:00:00 2001
From: zPlus <->
Date: Mon, 6 Jun 2016 00:14:51 +0200
Subject: [PATCH] Fix "duplicate key error" when changing to email=''

---
 database.php | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/database.php b/database.php
index 79619677..1ac173dc 100644
--- a/database.php
+++ b/database.php
@@ -824,10 +824,18 @@ class Database
     {
         $query = $this->database->prepare (
             'UPDATE `user`' .
-            'SET `about` = ?, `email` = ? ' .
-            'WHERE `id` = ?');
-            
-        $query->execute (array ($about, $email, $user_id));
+            'SET `about` = :about, `email` = :email ' .
+            'WHERE `id` = :user_id');
+        
+        $query->bindValue (':about', $about, PDO::PARAM_STR);
+        $query->bindValue (':user_id', $user_id, PDO::PARAM_INT);
+        
+        if (NULL == $email || '' == $email)
+            $query->bindValue (':email', NULL, PDO::PARAM_NULL);
+        else
+            $query->bindValue (':email', $email, PDO::PARAM_STR);
+        
+        $query->execute ();
     }
     
     /**