[Furniture]

To make it easier here is the code that I added from the above:

Mob* tradee = entity_list.GetMob(msg->to_mob_id);



if (tradee && tradee->IsClient()) {
char *query = 0;
MYSQL_RES *result;
MYSQL_ROW row;
char errbuf[MYSQL_ERRMSG_SIZE];
int myExpansion = -1;
int tradeeExpansion = -2;

MakeAnyLenString(&query, "SELECT expansion FROM character_vars WHERE character_id = %i", CharacterID());
if (database.RunQuery(query, strlen(query), errbuf, &result))
{
safe_delete_array(query);
row = mysql_fetch_row(result);
mysql_free_result(result);
myExpansion = (atoi(row[0]));
}

MakeAnyLenString(&query, "SELECT expansion FROM character_vars WHERE character_id = %i", CharacterID());
if (database.RunQuery(query, strlen(query), errbuf, &result))
{
safe_delete_array(query);
row = mysql_fetch_row(result);
mysql_free_result(result);
tradeeExpansion = (atoi(row[0]));
}

if (myExpansion != tradeeExpansion)
{
return;
}