Re: Caching

Use sessions to store your navigation data / parameters and call the
appropriate method?

On May 31, 1:44 pm, Jeremy Burns <jeremybu...@classoutfit.com> wrote:
> I've raised a similar question before but got no responses, so I'll
> try something more specific.
>
> I have an application that is pretty dynamic. With no caching turned
> on there is a lag of around 2 seconds before anything happens, and
> then it all zips in really quickly. If I blanket enable view caching
> (enabling cache in core.php, adding the Cache helper to app_controller
> and setting cacheAction to +1hour) the lag disappears, response is
> fantastic but the results are (understandably) terrible as nothing is
> dynamic.
>
> If I move the cache setting from app_controller into specific actions
> I start to get better results. It's a pretty big app, so that's going
> to take a lot of time and testing to do correctly. However, I have a
> particular problem that I need to solve before I put in the effort.
>
> I have a navigation component that reads $this->params, sets up some
> variables that are passed through the controller and rendered in an
> element (that also has a nested element):
>
> function beforeRender() {
>             $this->set('menus', $this->Navigation->menus($this->params));
>
> I have placed <cake:nocache></cake:nocache> blocks in the elements.
>
> Reading the Cake on line book:
> "It should be noted that once an action is cached, the controller
> method for the action will not be called - otherwise what would be the
> point of caching the page. Therefore, it is not possible to wrap
> <cake:nocache> </cake:nocache> around variables which are set from the
> controller as they will be null."
>
> As every page contains the navigation code, it would seem that I
> cannot pass the menus variable down. Subsequent rendering of the
> navigation (when the contents have changed) delivers lots of
> 'Undefined index' errors as the variables are indeed missing. This is
> especially so when a user logs in and then logs, which generates
> different menu content.
>
> Can anyone suggest a work around for this?

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