Location Mask

This is a very interesting idea. I can see how it would be very useful. I’ll have to think about how I might be able to generalize this for other users. But at the very least I could add another hook at this point in the logic, so you could have this code in your theme or a separate plugin and not need to modify ICS Calendar itself.

That would be great. I’m not going to be supporting the site for long, so I don’t want to leave code that’s a hacked version of the plugin itself!

I can see a generalised mask might be useful.

Thanks!

OK, I’m not sure when/if I’ll be able to incorporate this kind of functionality directly in the plugin, but I went ahead and added the filter.

In version 5.8.1, out now, there is a filter called r34ics_display_calendar_exclude_event that occurs right at the beginning of the foreach loop, where you had added your conditional.

I’ve added some documentation to the plugin’s admin page explaining how this works, under the Developer tab. Let me know if you have any additional questions.

Thanks for this.

I’ve put the following into my theme’s functions.php and not much seems to happen. Am I doing something wrong?

function calendar_exclude_event_callback( $event, $args ) {
    // make your code do something with the arguments and return something
   	if (stristr(@$event->location, 'Hall') == false) {
		return false;
	} else {
		return true;
	}
}

// now hook the callback function to the 'example_filter'
add_filter( 'r34ics_display_calendar_exclude_event', 'calendar_exclude_event_callback', 10, 2 );

Thanks

You may need to add reload="true" to your shortcode temporarily to force the transient data to clear. Once that’s happened you can remove that from the shortcode again.

Oh, wait, one more thing… you have to have three parameters. The first should be the boolean value $exclude, then $event and $args as the second and third. (The first parameter in a filter is always the pass-through return value.)

Great – that works! My code looks like this:

function calendar_exclude_event_callback($exclude, $event, $args) {
    // make your code do something with the arguments and return something
	$result = stristr(@$event->location, 'Church Hall');
   	if ($result == false) {
		return true;
	} else {
		return false;
	}
}

// now hook the callback function to the 'example_filter'
add_filter( 'r34ics_display_calendar_exclude_event', 'calendar_exclude_event_callback', 10, 3 );

It seems that if the function returns ‘true’ then the event is included, and when ‘false’ the event is excluded.

I worked on the assumption that a filter hook called ‘exclude_event’ should exclude the event when the function returns ‘true’. Is that just me?!

Thanks for your help.

Yeah, it’s supposed to exclude the event if the function returns true.

In your scenario, as it’s configured here, it should be showing only “Church Hall” events. (That is, it should be excluding any events that don’t contain “Church Hall”.) Is it not doing that?

Duh. I’m being stupid. It’s working exactly as expected. Thanks!

?? No worries. Let me know if you run into any problems or have any other suggestions!