Cache-block subtree expiration - how deep does it check?

Monday 09 April 2007 5:38:33 am

Hi,

I have now spent over a week trying to figure out subtree_expiry parameter of cache-block function. Unfortunately, no effects...I've gone through every piece of information of this forum and documentation that seemed to be relevant, tried every combination that seemed logical... Basically - it does not work and took me to draw one conclusion - subtree_expiry only works, when a child node directly one level below the block is expired, two or more do not matter... But then what would be the purpose of it?

The task seems simple. I have the following structure:

+ vehicles
++ cars
+++ bmw
+++ peugeot
++ motorcycles
+++ honda

When in 'vehicles' node, I fetch all the sub-nodes to output a list of vehicle groups (lev2) and their brands (lev3). How do I force the cache to be expired in case something on level3 changes?

Thanks for any suggestions.

--
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Monday 09 April 2007 11:50:36 pm

Hello Kristof,

I can show you what my best guesses were, but it would be difficult to remember all the combinations I have gone through, it took hours... :) Here we go:

design:full/my_vehicles_class.tpl (level1)

{* a *}{cache-block keys=$node.node_id subtree_expiry=$node.path_identification_string}
{* b *}{cache-block subtree_expiry=$node.path_identification_string}

{* fetch('content','list/tree', ...) *}
{* display level2 and level3 elements *}

{/cache-block}

I tried two scenarios as well, with level2 and level3 elemenents being published via administration interface and self-prepared 'add group/add brand' content action forms.

--
Company: mediaSELF Sp. z o.o., http://www.mediaself.pl
eZ references: http://ez.no/partners/worldwide_partners/mediaself
eZ certified developer: http://ez.no/certification/verify/272585
eZ blog: http://ez.ryba.eu

Tuesday 10 April 2007 4:44:54 am

Nothing changes, except for the fact that there's a debug error:

Error: eZTemplateCacheFunction::subtreeExpiryCacheDir()
Could not find path_string for 'subtree_expiry' node.

What exactly would be the purpose of it? Should I expect any special characters in the url_alias attribute that may affect the function? In that case, wouldn't it be better to trim its value instead? Otherwise, what would be the point? Just curious :)

--
Company: mediaSELF Sp. z o.o., http://www.mediaself.pl
eZ references: http://ez.no/partners/worldwide_partners/mediaself
eZ certified developer: http://ez.no/certification/verify/272585
eZ blog: http://ez.ryba.eu

Tuesday 10 April 2007 6:39:05 am

That's right, now I remember some former posts concerned with subree_expiry syntax and the slashes. I think I have even tried concatenating the path and the slash... but it didn't work either as far as I remember... :)

I'll let know as soon as I check your latest suggestions. Thanks.

--
Company: mediaSELF Sp. z o.o., http://www.mediaself.pl
eZ references: http://ez.no/partners/worldwide_partners/mediaself
eZ certified developer: http://ez.no/certification/verify/272585
eZ blog: http://ez.ryba.eu