[dokuwiki] Re: Content-dependent Purge/Cache
- From: Samuele Tognini <samuele@xxxxxxxxxxxxxxx>
- To: dokuwiki@xxxxxxxxxxxxx
- Date: Thu, 11 Jan 2007 16:01:12 +0100
Chris Smith ha scritto:
You need to update to devonly release (or a nightly). If you check back
through mailing list you'll see a discussion on persistent/volatile
metadata either in Nov or Dec[1]. iirc the last message will say when
the patch to implement went into the dev version.
Yes, i saw it but when i've read Todd's mail i've hoped there was a
trick with the stable release.
About updating, since i'm releasing a plugin i'd prefer that it's
compatible with the stable release.
My syntax plugin uses p_set_metatada to write the value (it was you who
give me this tips, do you remember? :) ), and for what i've understand
the support for metada rendering in syntax mode is not in the stable
release.
So at this point my stupid question is:
When users will upgrade from 2006-11-06 to current devonly, will those
already created plugin metadata values be delete in pages that do not
contain my plugin instructions anymore using a no-persistent parameter?
Thanks again,
Samuele
I think some parts of the change are documented in splitbrain. Search
on metadata. p_set_metadata now has an extra parameter, which defaults
to persistent.
**IMPORTANT**
If you have a syntax mode that needs to set metadata of the current
page, you should *NOT* use p_set_metadata, but add support for metadata
rendering to your plugins render() method. Combined with the patch in
devonly DW, this will properly handle the removal of metadata when your
syntax no longer appears on the page.
Deleting the metadata file will cause a loss of the persistent
information that is stored in there, irregardless of where it is done.
Cheers,
Chris
[1] Be careful if updating to this. There is a bug that will affect you
if your wiki files don't already have metadata (pre 2006-11-06 version)
and you use "display first headings". You can get around the bug by
turning off "display first headings". You need to leave the setting off
until DW has managed to create metadata files for all pages. Spidering
your wiki once should accomplish that.
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