[cache_info]
Description
This tag returns a map of information about the specified cache, including its id, type, content, and last refresh date. Returns null if the specified cache is not found. The map elements are: content, stat_fetch, type, id, stat_store, and date. Useful if you need to know when a cache was created, vs. when it will expire.
Parameters
-session
string, optional
The name of the session in which the cache is stored.
-useglobal
boolean, optional
Whether the cache is global. Defaults to true.
Sample Usage
cache_info('mycache')->find('date');
-> 2008-04-08 14:12:44
Source Code
Click the "Download" button below to retrieve a copy of this tag,
including the complete documentation and sample usage shown
on this page. Place the downloaded ".inc" file in your
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tag immediately.
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define_tag(
'info',
-namespace='cache_',
-req='name', -copy,
-opt='session',
-opt='useglobal',
-priority='replace',
-description='Returns information about the specified cache.'
);
// cache storage mechanism changed as of 8.5.6
if(!lasso_tagexists('cache_maintenance'));
// map elements: content, stat_fetch, type, id, stat_store, date
// add the server name to the cache name if host-specific caches is enabled
cache_preferences->find('_cache_host') == 'Y' ? #name += '|' + server_name;
// return null if there are no caches or the specified cache does not exist
!global_defined('_Cache_Storage') || $_Cache_Storage->find(#name) == '' ? return;
// return a reference to the specified cache
return(@$_Cache_Storage->find(#name));
else;
!local_defined('useglobal') ? local('useglobal') = true;
\cache_internal->eval;
if(#useglobal);
thread_atomic(globals->find(#c_prefix + 'fetch'));
globals->insert((#c_prefix + 'fetch') = integer(globals->find(#c_prefix + 'fetch')) + 1);
local('fetch') = globals->find(#c_prefix + 'fetch');
local('content') = globals->find(#c_prefix + 'content');
local('date') = globals->find(#c_prefix + 'date');
local('store') = @globals->find(#c_prefix + 'store');
/thread_atomic;
else;
vars->insert((#c_prefix + 'fetch') = integer(vars->find(#c_prefix + 'fetch')) + 1);
local('fetch') = vars->find(#c_prefix + 'fetch');
local('content') = vars->find(#c_prefix + 'content');
local('date') = vars->find(#c_prefix + 'date');
local('store') = @vars->find(#c_prefix + 'store');
/if;
local('out') = map(
'content' = #content,
'stat_fetch' = #fetch,
'type' = #c_type,
'id' = null,
'stat_store' = #store,
'date' = #date
);
return(#out);
/if;
/define_tag;
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Updated for 8.5.6.
Contains a quick'n'dirty fix for the changes in Lasso's caching system introduced in 8.5.6.