/**
* constructor
* @param string $column_name
* @param string $alias
* @param bool $click_count
* @return void
*/
function __construct($column_name, $alias = NULL, $click_count = false)
{
parent::__construct($column_name, $alias);
if (!is_bool($click_count)) {
// error_log("Click_count value for $column_name was not boolean", 0);
$this->click_count = false;
}
$this->click_count = $click_count;
}
/**
* constructor, set the column to asterisk
* @return void
*/
function __construct()
{
parent::__construct("*");
}
