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Lemon Juice
Smarty Pro
Joined: 24 May 2006
Posts: 109
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 Posted: Tue Aug 16, 2011 9:24 pm Post subject: 3.1dev: How do I register cache resource? |
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I'm tempted to try out the new cache resource API but I don't know how I should register my custom cache resource. The examples in the 'demo' folder only show the cache resource classes but I can't find any docs on how to register them. I have tried this:
| Code: |
$smarty->registerCacheResource('mycache', new Smarty_CacheResource_Mycache);
$smarty->setCaching(true);
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This only causes the constructor of Smarty_CacheResource_Mycache to be called but nothing else happens - templates are still cached as files. How do I register cache resources properly? |
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rodneyrehm
Administrator
Joined: 30 Mar 2007
Posts: 674
Location: Germany, border to Switzerland
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| Posted: Tue Aug 16, 2011 10:01 pm Post subject: |
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| Code: | $smarty->registerCacheResource('mycache', new Smarty_CacheResource_Mycache);
$smarty->caching_type = 'mycache';
$smarty->setCaching(true); |
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Lemon Juice
Smarty Pro
Joined: 24 May 2006
Posts: 109
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| Posted: Wed Aug 17, 2011 10:49 am Post subject: |
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Thanks, that seems to recognise my plugin but I think there is a bug because I get this error:
| Quote: | | Warning: Missing argument 6 for Smarty_CacheResource_Mycache::fetch(), called in C:\www\mysite\lib\smarty\sysplugins\smarty_cacheresource_custom.php on line 103 and defined in C:\www\mysite\lib\smarty-custom-plugins\cacheresource.mycache.php on line 49 |
It turns out that line 103 of smarty_cacheresource_custom.php invokes fetch like this:
| Code: | | $this->fetch($cached->filepath, $cached->cache_id, $cached->compile_id, $cached->content, $timestamp); |
which is missing 1 argument according the abstract method definition:
| Code: | | protected abstract function fetch($id, $name, $cache_id, $compile_id, &$content, &$mtime); |
Last edited by Lemon Juice on Wed Aug 17, 2011 11:24 am; edited 1 time in total |
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rodneyrehm
Administrator
Joined: 30 Mar 2007
Posts: 674
Location: Germany, border to Switzerland
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Lemon Juice
Smarty Pro
Joined: 24 May 2006
Posts: 109
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| Posted: Wed Aug 17, 2011 11:19 am Post subject: |
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Thanks for the fix! Now I get another error whenever the $mtime returned by fetch() is less than cache_lifetime:
| Quote: | | Fatal error: Function name must be a string in C:\www\mysite\lib\smarty\sysplugins\smarty_internal_templatebase.php on line 263 |
Global caching is turned off but I include one file with forced caching:
| Code: | | {include file="inc/modules/module.tpl" caching cache_lifetime=30} |
Possibly another bug? |
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rodneyrehm
Administrator
Joined: 30 Mar 2007
Posts: 674
Location: Germany, border to Switzerland
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| Posted: Wed Aug 17, 2011 11:27 am Post subject: |
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| Lemon Juice wrote: | | Quote: | | Fatal error: Function name must be a string in C:\www\mysite\lib\smarty\sysplugins\smarty_internal_templatebase.php on line 263 |
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can you paste the cached template(s) content(s)?
I'm interested in the header part(s)…
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Lemon Juice
Smarty Pro
Joined: 24 May 2006
Posts: 109
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| Posted: Wed Aug 17, 2011 11:31 am Post subject: |
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The is no cached template produced by smarty (yet), there is only one compiled template, here are the headers:
| Code: | <?php /* Smarty version Smarty 3.1-DEV, created on 2011-08-17 13:28:13
compiled from "templates\home.tpl" */ ?>
<?php /*%%SmartyHeaderCode:4064e4ba5cd1d06e1-82825611%%*/if(!defined('SMARTY_DIR')) exit('no direct access allowed');
$_valid = $_smarty_tpl->decodeProperties(array (
'file_dependency' =>
array (
'86f31bea36745d7880a3307675985632e9230a43' =>
array (
0 => 'templates\\home.tpl',
1 => 1310336363,
2 => 'file',
),
'f8ad9b4cfdb19b59011545dccf13a17ae279ecd1' =>
array (
0 => 'templates\\inc\\2sidebars-layout.tpl',
1 => 1312619794,
2 => 'file',
),
'a999362876d6cab6746f6e35997945bcf174f576' =>
array (
0 => 'templates\\inc\\global-layout.tpl',
1 => 1313532182,
2 => 'file',
),
'01ee5cfba0b6171ed95ce8527c6aac27be577787' =>
array (
0 => 'templates\\inc\\analytics-head.tpl',
1 => 1313265014,
2 => 'file',
),
'2380651ad6ef63b57386a57c04abde03710690db' =>
array (
0 => 'templates\\inc\\lubie_to.tpl',
1 => 1310309717,
2 => 'file',
),
'be8f724ae901ca6ed2ad477551202d5f9555520e' =>
array (
0 => 'templates\\inc\\threads.tpl',
1 => 1312627633,
2 => 'file',
),
'374964a99828020f4ad53fa3754c37acf2264ab7' =>
array (
0 => 'templates\\inc\\topic.tpl',
1 => 1313309555,
2 => 'file',
),
'ce14831b7c501e832d7f9664840b71d13350e631' =>
array (
0 => 'templates\\inc\\analytics-body.tpl',
1 => 1313265108,
2 => 'file',
),
),
'nocache_hash' => '4064e4ba5cd1d06e1-82825611',
'function' =>
array (
'picture_margin' =>
array (
'parameter' =>
array (
'crop' => '',
'width' => 0,
),
'compiled' => '',
),
),
'variables' =>
array (
'meta_keywords' => 0,
'meta_description' => 0,
'model' => 0,
'remaining_time' => 0,
'close_to_end_time' => 0,
'site_url' => 0,
'home_page_link' => 0,
'user' => 0,
'is_mod_view' => 0,
'globalMessageText' => 0,
'globalMessageType' => 0,
'globalMessageFormat' => 0,
'winning_topic' => 0,
'lc_topic' => 0,
'pop_post' => 0,
'at' => 0,
),
'has_nocache_code' => false,
'version' => 'Smarty 3.1-DEV',
'unifunc' => 'content_4e4ba5d00309a',
),false); /*/%%SmartyHeaderCode%%*/?>
<?php if ($_valid && !is_callable('content_4e4ba5d00309a')) {function content_4e4ba5d00309a($_smarty_tpl) {?><?php if (!is_callable('smarty_function_avatar')) include 'lib/smarty-custom-plugins\function.avatar.php';
if (!is_callable('smarty_function_cycle')) include 'C:\www\publi\lib\smarty\plugins\function.cycle.php';
if (!is_callable('smarty_modifier_site_datetime_format')) include 'lib/smarty-custom-plugins\modifier.site_datetime_format.php';
if (!is_callable('smarty_modifier_site_date')) include 'lib/smarty-custom-plugins\modifier.site_date.php';
?> |
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rodneyrehm
Administrator
Joined: 30 Mar 2007
Posts: 674
Location: Germany, border to Switzerland
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| Posted: Wed Aug 17, 2011 11:48 am Post subject: |
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If I'm not mistaking, your cache resource tells Smarty that it has a valid cache. Looks like it's returning an acceptable timestamp, but no content… is that possible?
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Lemon Juice
Smarty Pro
Joined: 24 May 2006
Posts: 109
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| Posted: Wed Aug 17, 2011 12:07 pm Post subject: |
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It is returning content and the content is printed to the browser but just after it the error message appears.
My cache resource is very primitive for testing purposes only, but I think it should work anyway. Here is the code:
| Code: | <?php
class Smarty_CacheResource_Mycache extends Smarty_CacheResource_Custom {
public function __construct() {
}
protected function fetch($id, $name, $cache_id, $compile_id, &$content, &$mtime)
{
$content = "MYXXX";
$mtime = time()-20;
}
protected function save($id, $name, $cache_id, $compile_id, $exp_time, $content)
{
return true;
}
protected function delete($name, $cache_id, $compile_id, $exp_time)
{
return 0;
}
}
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Once I get this working I will expand on it and implement some real stuff. |
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rodneyrehm
Administrator
Joined: 30 Mar 2007
Posts: 674
Location: Germany, border to Switzerland
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| Posted: Wed Aug 17, 2011 12:19 pm Post subject: |
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| Code: | | $content = "MYXXX"; |
is where the problem originates…
The template translates to the cache file | Code: | <?php /*%%SmartyHeaderCode:1722775884e49712108b258-44036340%%*/if(!defined('SMARTY_DIR')) exit('no direct access allowed');
$_valid = $_smarty_tpl->decodeProperties(array (
'file_dependency' =>
array (
'bf37987fc941484e7d4636c2c81842b0bbc60e1c' =>
array (
0 => '/Users/rrehm/Projekte/test.dev/htdocs/smarty/smarty3.1/testscripts/templates/dummy.tpl',
1 => 1313441603,
2 => 'file',
),
),
'nocache_hash' => '1722775884e49712108b258-44036340',
'cache_lifetime' => 3600,
'version' => 'Smarty 3.1-DEV',
'unifunc' => 'content_4e4bb1542574a',
'has_nocache_code' => false,
),true); /*/%%SmartyHeaderCode%%*/?>
<?php if ($_valid && !is_callable('content_4e4bb1542574a')) {function content_4e4bb1542574a($_smarty_tpl) {?>foo bar baz
<?php }} ?> |
The header (that decodeProperties() call) is essential to smarty being able to process the cache file.
Long Story short: don't return any garbage to smarty, just give it what it gave you to cache in the first place.
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Lemon Juice
Smarty Pro
Joined: 24 May 2006
Posts: 109
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| Posted: Wed Aug 17, 2011 12:56 pm Post subject: |
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| Okay, I see. Thanks for the explanatioin, I got it to work now! |
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