ZF-3508: API to get metadate for a given id

Issue Type: Improvement Created: 2008-06-25T01:35:02.000+0000 Last Updated: 2008-11-13T14:10:15.000+0000 Status: Resolved Fix version(s): - 1.7.0 (17/Nov/08)

Reporter: Lukas Smith (lsmith) Assignee: Fabien MARTY (fab) Tags: - Zend_Cache

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It would be nice to have an API to read the meta data of a given cache entry (when was the item cached, what tags does the item have or maybe custom metadata).

Here is an example scenario: An application that displays financial data should be updated every minute. However if updated financial data is not available, the existing data should still be used for up to 4 hours along with a timestamp in red to display the time when the data was last updated.

For implement this, the cache TTL would be set to 4 hours. In the code the metadata would first be read to determine if the data is older than 1 minute. If so a request is made and the cache is updated if new data is available. Otherwise the current data will be read.

Ideally there would even be a way to write some more custom metadata like "lastchecked" so that the check if the data is older than 1 minute is only done every 30 seconds at most.


Posted by Fabien MARTY (fab) on 2008-07-05T05:45:02.000+0000

the test() method is a good solution for mtime

for other things, it requires big changes (but i agree with you)

Posted by Fabien MARTY (fab) on 2008-08-29T12:55:54.000+0000

just commited into SVN trunk new methods "touch($id, $extendedLifetime) or getMetadatas($id)" (for File and Apc backend only, for the moment)

can you try it ?


Posted by Fabien MARTY (fab) on 2008-09-06T09:45:59.000+0000

fixed in SVN trunk

Posted by Wil Sinclair (wil) on 2008-11-13T14:10:15.000+0000

Changing issues in preparation for the 1.7.0 release.

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