add lastUpdate as option for graphQL

api/queries/products.php

@@ -13,6 +13,7 @@ $product = new ObjectType([
         "amount" => Type::int(),
         "position" => Type::string(),
         "positionid" => Type::int(),
+        "lastUpdate" => Type::int(),
     ]
 ]);
 
@@ -20,7 +21,7 @@ function products($conn, $limit = -1, $offset = 0)
 {
     $limit = $conn->real_escape_string($limit);
     $offset = $conn->real_escape_string($offset);
-    $query = "SELECT products.id, manufacturer.name AS manufacturer, manufacturer.id AS manufacturerid, products.name, amount, position.name AS position, position.id AS positionid FROM products INNER JOIN position ON products.position = position.id INNER JOIN manufacturer ON products.manufacturer = manufacturer.id";
+    $query = "SELECT products.id, manufacturer.name AS manufacturer, manufacturer.id AS manufacturerid, products.name, amount, position.name AS position, position.id AS positionid, lastUpdate FROM products INNER JOIN position ON products.position = position.id INNER JOIN manufacturer ON products.manufacturer = manufacturer.id";
     if ($limit > 0) {
         $query .= " LIMIT $limit OFFSET $offset";
     }