{if $params|@current eq 'today'}
    Today
{elseif $params|@current eq 'yesterday'}
    Yesterday
{else}
    {assign var = 'date_format' value = $column.format|default:'%m/%d/%Y %l:%M %p'}
    {$params|@current|date_format:$date_format|default:$column.emptyText}
{/if}