Is there a way to clear egroupware’s cache programmatically

vishakha · Mar '22

I know we can clear egroupware’s cache from admin, but can it also be cleared programmatically

StefanU · Mar '22

Why?

Stefan

RalfBecker · Mar '22

Sure, question is from what environment.

For an EGroupware app you can do what we do in our sources, when you call it in Admin:

github.com

EGroupware/egroupware/blob/master/admin/inc/class.admin_hooks.inc.php#L170




	/**
	 * Clears instance cache (and thereby also refreshes hooks)
	 */
	function ajax_clear_cache()
	{
		if ($GLOBALS['egw']->acl->check('applications_acc',16,'admin'))
		{
			$GLOBALS['egw']->redirect_link('/index.php');
		}
		Api\Cache::flush(Api\Cache::INSTANCE, !empty($_GET['errored']) ? "all" : null);


		Api\Image::invalidate();


		if (method_exists($GLOBALS['egw'],'invalidate_session_cache'))	// Egw object in setup is limited
		{
			$GLOBALS['egw']->invalidate_session_cache();	// in case with cache the egw_info array in the session
		}
		// allow apps to hook into "Admin >> Clear cache and register hooks"
		Api\Hooks::process('clear_cache', array(), true);
	}

From a shell script you can send a signal to the FPM process:

[docker exec -it egroupware] kill -s usr2 1

Ralf

vishakha · Mar '22

Hi Ralf

I’d like to do it from a custom application in egroupware

RalfBecker · Mar '22

Ok, see my answer above

Ralf

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