function lhg_get_guid_from_uid($uid)
{
    $guid = lhg_get_guid($uid);
    return $guid;
}
function lhg_update_donation_settings()
{
    global $lang;
    global $lhg_price_db;
    error_log("Update settings");
    //echo "Found??: ".$_POST['lhg_user_donation_target'];
    if (!isset($_POST['lhg_user_donation_target'])) {
        return;
    }
    //validate submitted value otherwise set to default
    $user_donation_target = $_POST['lhg_user_donation_target'];
    // get user id
    // check if own or other user's profile is edited
    $user_id = get_current_user_id();
    $edituser = $_POST['user_id'];
    if ($edituser > 0 && $edituser != $user_id) {
        #error_log("Editing of other user: "******"UID settings to be conged for  changed: $user_id - $guid");
    }
    // first add to history DB before value is overwritten
    $timestamp = time();
    // check if old value exists, if not, store for history reasons
    $sql = "SELECT id FROM `lhgtransverse_donations` WHERE guid = \"" . $guid . "\" ";
    $result = $lhg_price_db->get_var($sql);
    if ($result == "") {
        # old value was not stored. Entry needed. First get old value
        #error_log("No entry found for $guid");
        $sql = "SELECT *  FROM `lhgtransverse_users` WHERE id = \"" . $guid . "\" ";
        $results = $lhg_price_db->get_results($sql);
        #var_dump($results);
        #error_log("DB res: ".$results[0]->donation_target_com);
        #error_log("DB res: ".$results[0]->donation_target_de);
        if ($results[0]->donation_target_com != "" && $results[0]->donation_target_date_com > $results[0]->donation_target_date_de) {
            # found an old and valid com value
            $sql = "INSERT INTO lhgtransverse_donations (guid, timestamp, donation_target) VALUES (%s, %s, %s) ";
            $safe_sql = $lhg_price_db->prepare($sql, $guid, $timestamp - 1, $results[0]->donation_target_com);
            $result = $lhg_price_db->query($safe_sql);
        } elseif ($results[0]->donation_target_d != "" && $results[0]->donation_target_date_de > $results[0]->donation_target_date_com) {
            # found an old and valid de value
            $sql = "INSERT INTO lhgtransverse_donations (guid, timestamp, donation_target) VALUES (%s, %s, %s) ";
            $safe_sql = $lhg_price_db->prepare($sql, $guid, $timestamp - 1, $results[0]->donation_target_de);
            $result = $lhg_price_db->query($safe_sql);
        } else {
            #nothing found, fallback value used
            # found an old and valid de value
            $sql = "INSERT INTO lhgtransverse_donations (guid, timestamp, donation_target) VALUES (%s, %s, %s) ";
            $safe_sql = $lhg_price_db->prepare($sql, $guid, $timestamp - 1, 1);
            $result = $lhg_price_db->query($safe_sql);
        }
    }
    #write new settings to DB
    $sql = "INSERT INTO lhgtransverse_donations (guid, timestamp, donation_target) VALUES (%s, %s, %s) ";
    $safe_sql = $lhg_price_db->prepare($sql, $guid, $timestamp, $user_donation_target);
    $result = $lhg_price_db->query($safe_sql);
    //afterwards, modify user entires (locally and in transverse DB)
    update_user_meta($user_id, 'user_donation_target', $user_donation_target);
    //also store in priceDB
    if ($lang != "de") {
        lhg_update_userdb_by_uid("donation_target_com", $user_id, $user_donation_target);
    }
    if ($lang == "de") {
        lhg_update_userdb_by_uid("donation_target_de", $user_id, $user_donation_target);
    }
    if ($lang != "de") {
        lhg_update_userdb_by_uid("donation_target_date_com", $user_id, time());
    }
    if ($lang == "de") {
        lhg_update_userdb_by_uid("donation_target_date_de", $user_id, time());
    }
}
function lhg_donation_testing($attr, $content)
{
    global $lang;
    $uid = get_current_user_id();
    $guid = lhg_get_guid($uid);
    # user accounts are currently hard coded. Will be removed after beta testing
    if ($lang != "de" and $uid == 24294 or $guid == 1 or $uid == 1) {
        return do_shortcode($content);
    }
    return;
}