if (isset($_POST['save_blooddonor'])) {
    if ($_REQUEST['action'] == 'edit') {
        $result = $obj_bloodbank->hmgt_add_blood_donor($_POST);
        if ($result) {
            wp_redirect(admin_url() . 'admin.php?page=hmgt_bloodbank&tab=blooddonorlist&message=2');
        }
    } else {
        $result = $obj_bloodbank->hmgt_add_blood_donor($_POST);
        if ($result) {
            wp_redirect(admin_url() . 'admin.php?page=hmgt_bloodbank&tab=blooddonorlist&message=1');
        }
    }
}
if (isset($_POST['save_bloodgroup'])) {
    if ($_REQUEST['action'] == 'edit') {
        $result = $obj_bloodbank->add_blood_group($_POST);
        if ($result) {
            wp_redirect(admin_url() . 'admin.php?page=hmgt_bloodbank&tab=bloodbanklist&message=2');
        }
    } else {
        $result = $obj_bloodbank->add_blood_group($_POST);
        if ($result) {
            wp_redirect(admin_url() . 'admin.php?page=hmgt_bloodbank&tab=bloodbanklist&message=1');
        }
    }
}
if (isset($_REQUEST['action']) && $_REQUEST['action'] == 'delete') {
    if (isset($_REQUEST['blooddonor_id'])) {
        $result = $obj_bloodbank->delete_blooddonor($_REQUEST['blooddonor_id']);
        wp_redirect(admin_url() . 'admin.php?page=hmgt_bloodbank&tab=blooddonorlist&message=success');
    }