Fix triggered error

htdocs/fourn/class/fournisseur.commande.class.php

@@ -2669,21 +2669,22 @@ class CommandeFournisseur extends CommonOrder
             $sql.= " FROM ".MAIN_DB_PREFIX.'c_input_method';
             $sql.= " WHERE active=1 AND rowid = ".$db->escape($this->methode_commande_id);
 
-            $query = $db->query($sql);
-            if ($query && $db->num_rows($query))
+            $resql = $db->query($sql);
+            if ($resql)
             {
-                $obj = $db->fetch_object($query);
-
-                $string = $langs->trans($obj->code);
-                if ($string == $obj->code)
+                if ($db->num_rows($query))
                 {
-                    $string = $obj->label != '-' ? $obj->label : '';
-                }
-
-                return $string;
+                    $obj = $db->fetch_object($query);
+    
+                    $string = $langs->trans($obj->code);
+                    if ($string == $obj->code)
+                    {
+                        $string = $obj->label != '-' ? $obj->label : '';
+                    }
+                    return $string;
+                }    
             }
-
-            dol_print_error($db);
+            else dol_print_error($db);
         }
 
         return '';