Subversion-Projekte lars-tiefland.laravel_shop

Cache Groups {#caching.groups}

============

You can do more elaborate grouping by setting up `$cache_id` groups.

This is accomplished by separating each sub-group with a vertical bar

`|` in the `$cache_id` value. You can have as many sub-groups as you

like.

-   You can think of cache groups like a directory hierarchy. For

    instance, a cache group of `'a|b|c'` could be thought of as the

    directory structure `'/a/b/c/'`.

-   `clearCache(null,'a|b|c')` would be like removing the files

    `'/a/b/c/*'`. `clearCache(null,'a|b')` would be like removing the

    files `'/a/b/*'`.

-   If you specify a [`$compile_id`](#variable.compile.id) such as

    `clearCache(null,'a|b','foo')` it is treated as an appended cache

    group `'/a/b/c/foo/'`.

-   If you specify a template name such as

    `clearCache('foo.tpl','a|b|c')` then Smarty will attempt to remove

    `'/a/b/c/foo.tpl'`.

-   You CANNOT remove a specified template name under multiple cache

    groups such as `'/a/b/*/foo.tpl'`, the cache grouping works

    left-to-right ONLY. You will need to group your templates under a

    single cache group hierarchy to be able to clear them as a group.

Cache grouping should not be confused with your template directory

hierarchy, the cache grouping has no knowledge of how your templates are

structured. So for example, if you have a template structure like

`themes/blue/index.tpl` and you want to be able to clear all the cache

files for the "blue" theme, you will need to create a cache group

structure that mimics your template file structure, such as

`display('themes/blue/index.tpl','themes|blue')`, then clear them with

`clearCache(null,'themes|blue')`.

    <?php

    require('Smarty.class.php');

    $smarty = new Smarty;

    $smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);

    // clear all caches with 'sports|basketball' as the first two cache_id groups

    $smarty->clearCache(null,'sports|basketball');

    // clear all caches with "sports" as the first cache_id group. This would

    // include "sports|basketball", or "sports|(anything)|(anything)|(anything)|..."

    $smarty->clearCache(null,'sports');

    // clear the foo.tpl cache file with "sports|basketball" as the cache_id

    $smarty->clearCache('foo.tpl','sports|basketball');

    $smarty->display('index.tpl','sports|basketball');

    ?>