Disclaimer: not sure I grasped the 'extra field as a date' idea.
Anyway, if you want to publish the End Publishing date, there's a clean way to do it:
Joomal output override
.
Because the
publish_down field is generally* available in CP result records, it's easy to display it, without hacking the component and while keeping compatibility in case of updates to the component.
(* some content types don't have such field, but standard Joomla articles do)
In case you are not familiar with override, here's the basic steps:
1) create [tt]html/com_customproperties/show[/tt] directory into your template folder
2) copy [tt]components/com_customproperties/views/show/tmpl/default.php[/tt] into the directory created with step 1)
3) modify the file
You would add at around row 327-350 something like:
Code:
if(isset($row->publish_down)){
echo $row->publish_down != '0000-00-00 00:00:00' ? JHTML::_('date', $row->publish_down, '%Y-%m-%d') : 'Never' ;
}
The actual position depends by the view you chose in CP config.
