path: custom/modules/Agreements/

sum.php

<?php

class SumAgreementsHook
{
    protected static $sum = 0;

    /**
     * Called as process_record logic hook on the Opportunities module
     */
    public function sumTotalFromEachRow($bean, $event, $arguments)
    {
        self::$sum += $bean->hourly_rate_c;
    }

    /**
     * Called as a after_ui_frame logic hook on the Opportunities module
     */
    public function displaySumTotal($event, $arguments)
    {
        if ($GLOBALS['action'] == 'index' || $GLOBALS['action'] == 'ListView') {
            $sum = currency_format_number(self::$sum);
            echo <<<EOHTML
<script type="text/javascript">
<!--
$('<p>Total Hours Rate is {$sum}</p>').insertAfter('.moduleTitle');
-->
</script>
EOHTML;
        }
    }
}
?>