From 6ef538b365d06a7096fcb2d04a8ea65fbbf61afd Mon Sep 17 00:00:00 2001
From: Martin Ambrus <martin@martinambrus.com>
Date: Wed, 8 Nov 2017 18:00:14 +0100
Subject: [PATCH] fix: undefined indexes

---
 Templates/Build/17.tpl | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Templates/Build/17.tpl b/Templates/Build/17.tpl
index ce2c6b00..b2896692 100644
--- a/Templates/Build/17.tpl
+++ b/Templates/Build/17.tpl
@@ -14,16 +14,21 @@ var carry = <?php echo $market->maxcarry; ?>;
 //-->
 </script>
 <?php
+for ($a = 1; $a <= 4; $a++) {
+    if (!isset($_POST['r'.$a])) {
+        $_POST['r'.$a] = 0;
+    }
+}
 $allres = (int) $_POST['r1'] + (int) $_POST['r2'] + (int) $_POST['r3'] + (int) $_POST['r4'];
-if($_POST['x']!="" && $_POST['y']!="" && is_numeric($_POST['x']) && is_numeric($_POST['y'])){
+if(!empty($_POST['x']) && !empty($_POST['y']) && is_numeric($_POST['x']) && is_numeric($_POST['y'])){
 	$getwref = $database->getVilWref($_POST['x'],$_POST['y']);
 	$checkexist = $database->checkVilExist($getwref);
 }
-else if($_POST['dname']!=""){
+else if(!empty($_POST['dname'])){
 	$getwref = $database->getVillageByName($_POST['dname']);
 	$checkexist = $database->checkVilExist($getwref);
 }
-if($checkexist){
+if(isset($checkexist) && $checkexist){
 $villageOwner = $database->getVillageField($getwref,'owner');
 $userAccess = $database->getUserField($villageOwner,'access',0);
 }