Purge post by ID on demand

I am trying to integrate the plugin on my theme so that i can purge a specific post (or array of posts) on an event invoked by an action in my theme.

Depends on the action.

I’m assuming you read about https://github.com/Ipstenu/varnish-http-purge/wiki/Custom-Filters#add-event-to-force-a-purge already

If you’re flushing the exact same pages every time, that function would be what you want. Add in the event, and then in your function tell it to flush.

All you really have to do is:

1. Collect the posts you want to flush
2. On that action from your theme, tell it to flush those posts

I personally do it with a weirdly complex “If a post in post-type A is being edited, trigger a flush on all related posts in post-type B.”

But the specifics depend on .. well .. the specifics ??

Thanks for the reply Mika. I am actually trying to purge all custom posts that have a specific term in a custom tax when the the term changes.

tell it to flush those posts

So here is where you instantiate the plugin’s class and call the purge_post function right?

• This reply was modified 2 years, 2 months ago by tolisp.

Sorry for the delay, I’m getting over Covid.

I am actually trying to purge all custom posts that have a specific term in a custom tax when the the term changes.

Ah, that’s not terribly hard.

You want to hook into the term editor or just say “Any time a term is edited, flush the site”

The latter is ‘faster’ to code:

function my_varnish_purge_events( $actions ) {
	$myactions = array(
		'edit_term',	// When a term is edited
	);
	array_merge( $actions, $myactions ) ;
	return $actions;
}
add_filter( 'varnish_http_purge_events', 'my_varnish_purge_events' );
add_filter( 'varnish_http_purge_events_full', 'my_varnish_purge_events' );

The double filters are because I had to put in some odd redundancy.

The former would mean hooking into edit_term :

function my_term_edit( $term_id, $tt_id, $taxonomy ){
    // do some stuff
}
add_action( 'edit_term', 'my_term_edit', 10, 3 );

And then having code that

1. Gets a list of all posts in that term
2. Add all the posts by URL to be purged

That second step is probably going to be the biggest headache. If you look at the wp-cli code for the plugin – https://github.com/Ipstenu/varnish-http-purge/blob/trunk/wp-cli.php – you’ll see there’s a __construct() to create a connection to VarnishPurger(), and that allows you to call things like:

$this->varnish_purge->purge_url( $url );

More or less that’ll be what you want to duplicate.

Oh sorry to hear that, hope you get over it fast ??
Thanks for the help, i appreciate it!