Subquery support in UPDATE/INSERT

MysqliDb.php

@@ -579,7 +579,9 @@ class MysqliDb
                 if ($isUpdate !== false)
                     $this->_query .= "`" . $column . "` = ";
 
-                if (!is_array ($value)) {
+                if (is_object ($value)) {
+                    $this->_query .= $this->_buildPair ("", $value) . ", ";
+                } else if (!is_array ($value)) {
                     $this->_bindParam ($value);
                     $this->_query .= '?, ';
                 } else {

readme.md

@@ -218,11 +218,8 @@ print_r ($products);
 
 ### Subqueries
 ```php
-$db->where("id", $db->subQuery()
-                    ->where("qty", 2, ">")
-                    ->get("products",null,"userId"),
-            'in');
-
+$ids = $db->subQuery()->where("qty", 2, ">")->get("products", null, "userId");
+$db->where("id", $ids, 'in');
 $res = $db->get ("users");
 // Gives SELECT * FROM users WHERE id IN (SELECT userId FROM products WHERE qty > 2)
 ```