From 93f74c1adbda89848a7cec46e20b591cbf14de3a Mon Sep 17 00:00:00 2001
From: Rochet2 <tqbattlenet@gmail.com>
Date: Sat, 19 Nov 2016 19:57:48 +0200
Subject: [PATCH] Make error more verbose

---
 ElunaQueryMethods.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ElunaQueryMethods.h b/ElunaQueryMethods.h
index 9f76edb..07e8b33 100644
--- a/ElunaQueryMethods.h
+++ b/ElunaQueryMethods.h
@@ -24,8 +24,14 @@ namespace LuaQuery
 {
     static void CheckFields(lua_State* L, ElunaQuery* result)
     {
-        if (Eluna::CHECKVAL<uint32>(L, 2) >= RESULT->GetFieldCount())
-            luaL_argerror(L, 2, "invalid field index");
+        uint32 field = Eluna::CHECKVAL<uint32>(L, 2);
+        uint32 count = RESULT->GetFieldCount();
+        if (field >= count)
+        {
+            char arr[256];
+            sprintf(arr, "trying to access invalid field index %u. There are %u fields available and the indexes start from 0", field, count);
+            luaL_argerror(L, 2, arr);
+        }
     }
 
     /**