52bf429a01
Updated calls to current Smarty API (register_function()/register_modifier()/register_block() -> registerPlugin(); assign_by_ref() -> assignByRef()). Fixed file includes in templates with quotes. Removed SmartyValidate.class.php includes. Still work in progress as some errors still appear!
61 lines
2.3 KiB
Markdown
61 lines
2.3 KiB
Markdown
Cache Groups {#caching.groups}
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============
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You can do more elaborate grouping by setting up `$cache_id` groups.
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This is accomplished by separating each sub-group with a vertical bar
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`|` in the `$cache_id` value. You can have as many sub-groups as you
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like.
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- You can think of cache groups like a directory hierarchy. For
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instance, a cache group of `'a|b|c'` could be thought of as the
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directory structure `'/a/b/c/'`.
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- `clearCache(null,'a|b|c')` would be like removing the files
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`'/a/b/c/*'`. `clearCache(null,'a|b')` would be like removing the
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files `'/a/b/*'`.
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- If you specify a [`$compile_id`](#variable.compile.id) such as
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`clearCache(null,'a|b','foo')` it is treated as an appended cache
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group `'/a/b/c/foo/'`.
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- If you specify a template name such as
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`clearCache('foo.tpl','a|b|c')` then Smarty will attempt to remove
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`'/a/b/c/foo.tpl'`.
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- You CANNOT remove a specified template name under multiple cache
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groups such as `'/a/b/*/foo.tpl'`, the cache grouping works
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left-to-right ONLY. You will need to group your templates under a
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single cache group heirarchy to be able to clear them as a group.
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Cache grouping should not be confused with your template directory
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heirarchy, the cache grouping has no knowledge of how your templates are
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structured. So for example, if you have a template structure like
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`themes/blue/index.tpl` and you want to be able to clear all the cache
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files for the "blue" theme, you will need to create a cache group
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structure that mimics your template file structure, such as
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`display('themes/blue/index.tpl','themes|blue')`, then clear them with
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`clearCache(null,'themes|blue')`.
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<?php
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require('Smarty.class.php');
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$smarty = new Smarty;
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$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
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// clear all caches with 'sports|basketball' as the first two cache_id groups
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$smarty->clearCache(null,'sports|basketball');
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// clear all caches with "sports" as the first cache_id group. This would
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// include "sports|basketball", or "sports|(anything)|(anything)|(anything)|..."
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$smarty->clearCache(null,'sports');
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// clear the foo.tpl cache file with "sports|basketball" as the cache_id
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$smarty->clearCache('foo.tpl','sports|basketball');
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$smarty->display('index.tpl','sports|basketball');
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?>
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