I’m showing a list of events on pretty much every page. Is there a way to auto-expire the cache after a day? Currently past events are shown because of the cache, and my client manually flushes the cache.
I have a few sites with similar requirement. My solution was to schedule a cron job to clean the cache folder on the desired interval. A simple command like this on the cronjob will do it:
rm /home/example.com/site/cache/*
Digital Ocean has a great tutorial on setting up cron jobs.
2 Likes
Unfortunately the hosting does not provide any way of setting up a cron job. So I might have to use a poor man’s cron job instead. 
I have no experience with them, but what about using external cron job services?
One option would be setup a simple “webhook” consisted of a Kirby route which flushes the cache. You could setup a cronjob on any other computer to ping the Kirby site on that URL using cURL, for example.
Another idea I just had is to run a simple check on every request:
<?php // site.php on the root
$kirby = kirby();
/**
* Flush the cache daily
*/
// Creates an empty hidden file to store cache's last flush time
$cacheFile = __DIR__ . DS . '.cache';
if (! file_exists($cacheFile)) file_put_contents($cacheFile, '');
// Checks if the file was updated before midnight
$midnight = strtotime('today midnight');
if (filemtime($cacheFile) < $midnight) {
// If so…
// Flushes the cache
kirby()->cache()->flush();
// Updates the cache file modification time
touch($cacheFile);
}
Place this code in a site.php file on the site’s root (this file is loaded by Kirby automatically when present, create it if it doesn’t exist already):
Consider this a quick working proof-of-concept. Feel free to improve it, wrap it inside a function, whatever.
3 Likes
That’ll work! Thanks 
External cron job (like https://www.easycron.com) is the easiest way to create cron job, you just need to click to choose some settings to complete an complex cron job configuration.