Extensions settings and Joomla's cache

[amazeika]

When Joomla's cache is enabled, extension setting changes get saved BUT Joomla's cache is not renewed. This is most likely because when we save settings, these are updated using a model entity instead of the Joomla API for this matter.

We should take a closer look at this and at the very least attempt to invalidate the config cache after updating the extension settings.

Support tickets

• _ https://secure.helpscout.net/conversation/2674379314/17581?folderId=1665363

[jebbdomingo]

@amazeika We can clean the system cache after editing the config.

$this->addCommandCallback('after.edit',   '_clearCache');

protected function _clearCache()
{
      JFactory::getCache('_system', 'output')->clean();
}

and also in the installer helper

protected function _clearCache()
{
      ...
      JFactory::getCache('_system', 'output')->clean();
      ...
}