sub update_admin_message {
    my ( $self, $data_hash ) = @_;
    my ( $fields, $values ) = $self->_format_update_data( $data_hash );
    my $sql = "UPDATE adminMessage SET $fields";
    my $data = $self->_update_database( $sql, $values );
    $self->{ _dbh }->commit if ! $self->{ _error };
}