Caching

Rendering a page is an intensive process that involves fetching data from the database, and rendering every element recursively through its template.

Thankfully, alahup! fully supports .

This is how caching is implemented by default. It takes place in alahup/_main.php:

alahup/_main.php :
/* Activate the cache exclusively for the published version of the site, and
make sure to leave it off if the session is passed in the url (probably
because the visitor doesn't accept cookies) : otherwise the cache would be saved
with links containing "sid=..." */
 if ( AH_STATUS == 'published' && !array_key_exists('sid', $_GET) )
 {
    $alahup->smarty->caching = true; // activates the cache
    $alahup->smarty->cache_lifetime = -1; // -1 means the cache never expires
 }
/* AH_HREF is a constant which contains the href of the page
("en/products/alahup" for example). Smarty will thus cache a special version
of the template 'main.tpl' for each rendered page.
The 'alahup|' prefix makes the cache part of the 'alahup' group, which is
automatically cleared when a new version is published */
 $alahup->smarty->display('main.tpl', 'alahup|'.AH_HREF);

What about dynamic content ?

Of course, if some of your templates embed dynamic content such as a date and time display, you don't want to cache them.

  • In your templates, surround the parts that you don't want to be static with {dynamic} ... {/dynamic} and the generated cache will "know" that this portion of the template is dynamic and should be executed!

    example :
    Page cached : {"0"|date_format:"%D %H:%M:%S"}.
    Now is : {dynamic}{"0"|date_format:"%D %H:%M:%S"}{/dynamic}

  • If you developed your own Smarty plug-in, keep in mind that you can .

  • As for modules developed with alahup! API, they are not cached, so you don't have to worry about them!