condition_user_frequency.inc

<?php
require_once SQ_CORE_PACKAGE_PATH.'/system/conditions/condition/condition.inc';

class Condition_User_Frequency extends Condition
{


    function __construct($assetid=0)
    {
        parent::__construct($assetid);

    }//end constructor


    public static function evaluate(Asset $asset, Array $condition_data)
    {
        $result = FALSE;

        // Retrieve the cookie or initialise it
        if (isset($_COOKIE['user_frequency_cond_'.$condition_data['id_name']]) && (FALSE !== strpos($_COOKIE['user_frequency_cond_'.$condition_data['id_name']], '__'))) {
            $data = Array();
            list($data['value'], $data['last_date']) = explode('__', $_COOKIE['user_frequency_cond_'.$condition_data['id_name']]);
        } else {
            $data = Array(
                        'value'     => 1,
                        'last_date' => time(),
                    );
        }

        // time difference between now and last update in days
        $difference = (time() - $data['last_date']) / 86400;
        // EVERY X HITS
        // Condition evaluates to TRUE every x hits, for example when
        // x is 20, it will return TRUE on hit 20, 40, 60... etc
        if ($condition_data['units'] == 'hits') {
            $hits = (int) $condition_data['value'];
            // if the current counter divides evenly into condition return TRUE
            if (($hits != 0) && (($data['value'] % $hits) == 0)) {
                $result = TRUE;
            } else {
                $result = FALSE;
            }
            $data['value']++;
        }

        // EVERY X HITS LIMIT 1 PER DAY
        // same as above limit 1 hit per day
        if ($condition_data['units'] == 'session') {
            $hits = (int) $condition_data['value'];

            // if the current counter divides evenly into condition return TRUE
            if (($data['value'] % $hits) == 0) {
                $result = TRUE;
            } else {
                $result = FALSE;
            }

            // we only increment the count if a day has passed
            if ((int) $difference) $data['value']++;
        }

        // EVERY X TIME PERIOD UNITS
        // Condition evaluates TRUE every x period of time
        // for example when x is 3 days, condition will be TRUE
        // if more than 3 days have passed since last check
        if ($condition_data['units'] == 'days' || $condition_data['units'] == 'hours' || $condition_data['units'] == 'minutes') {
            if ($condition_data['units'] == 'hours') {
                $difference *= 60;
            }

            if ($condition_data['units'] == 'minutes') {
                $difference *= 3600;
            }

            // if more units have passed than the required difference
            if (((int) $difference) > $condition_data['value']) {
                $result = TRUE;
            } else {
                $result = FALSE;
            }
        }
        // update the time, and set the cookie
        $data['last_date'] = time();
        $root_url = str_replace(Array('http://', 'https://'), '', sq_web_path('root_url'));
        $domain = $root_url;
        $path = '/';
        if (FALSE !== ($slashpos = strpos($root_url, '/'))) {
            $domain = substr($root_url, 0, $slashpos);
            $path = substr($root_url, $slashpos);
        }
        setcookie('user_frequency_cond_'.$condition_data['id_name'], $data['value'].'__'.$data['last_date'], strtotime('+3 months'), $path, $domain);

        return $result;

    }//end evaluate()


}//end class

?>