Disable caching when snippet is present

1

I have a snippet which displays upcoming events. Past events disappear automatically when the current date has passed. It would be handy if I could disable the page cache then within the snippet. How could I achieve this?

2

That won’t work. By the time you reach the snippet, the page is already rendered from cache.

Is there a way to know when the snippet is used? Like loaded by some page field setting?

3

It actually is a block snippet. And the block element can be used on different templates. I could add a hidden field to this block. But how to check for it in the cache config ignore setting for example?

4

Within the cache.ignore config option, you can check if the page contains the given block type.

So something like

 'ignore' => function ($page) {
        return $page->text()->toBlocks()->has('blockTypeThatShouldPreventCaching');
      }
5

Ah yes, this is a great solution. Unfortunately I have nested blocks in my case. So sometimes the “uncacheable” block is on the second level, which makes it harder to identify. I now thought about a dirty workaround: just including $kirby->session() inside my snippet, which prevents the page from being cached. Maybe a core method like $page->disableCache() could be better for this. What do you think?

6

I mean in theory you should be able to do $kirby->response()->cache(false);

7

Thanks. Yes this works and seems to be the most flexible and comprehensible solution in my case.