Someone

    //Attunement check
    vector<String> RequiredQuest;
    RequiredItem = 0;
    QuestCompleted = false;
    uint32 qmapid = GetId();
    QueryResult* result = sDatabase.PQuery("SELECT `RequiredQuest`,`RequiredItem` FROM `instance_template`  WHERE `map` = '%d'", qmapid);	
    Field *fields = result->Fetch();
    RequiredQuest = StrSplit(fields[0].GetString(), ";");
    RequiredItem = fields[1].GetUInt32();
    delete result;
    //Check for required quest
    for (int i = 0; i < RequiredQuest.size(); i++) { 
        if (player->GetQuestRewardStatus(atoi(RequiredQuest[i])))
            QuestCompleted = true;
    }
    if (!QuestCompleted && RequiredQuest != NULL && (!player->isGameMaster())) {
        player->GetSession()->SendAreaTriggerMessage("You are not attuned to %s.", GetMapName());
        return(false);
    }

    //Check for required item
    if (!player->HasItemCount(RequiredItem, 1) && RequiredItem != 0 && (!player->isGameMaster())) {
        player->GetSession()->SendAreaTriggerMessage("You do not have the required key for this instance.", GetMapName());
        return(false);
    }