custom caching from within an extension

Thursday 11 March 2010 10:28:26 am - 4 replies

4 replies

Author	Message
Gaetano Giunta	Thursday 11 March 2010 1:04:43 pm - create a template fetch function that does the ws calls - put cache blocks around those calls in the template Principal Consultant International Business Member of the Community Project Board
Matthew Carroll	Thursday 11 March 2010 2:09:52 pm Thanks! That was the nudge I needed to see the problem from a new angle. Currently it does all three external fetches within the one operator function, but if I extract some of the logic out to the ez template instead, and put the second and third lookups in a separate function, it will be more efficient overall. I was trying to imagine taking the caching into the php of the extension, when what I need to do is bring a small portion of the extension logic out to the ez template. I just wasn't thinking about the problem the right way (isn't that always the challenge!) http://carroll.org.uk
Matthew Carroll	Thursday 11 March 2010 7:48:41 pm Unfortunately the approach I thought would work doesn't seem to. I took out the second two external website lookups and put them into a template fetch function, but I need to be able to access the result of that fetch as a variable later on. If I do this: {cache-block expiry=86400} {def $mylist=fetch( 'mplookup', 'list', hash())} {/cache-block} ...it doesn't work the second time, as the variable $mylist doesn't exist once that block is cached. Does that make sense? I want to cache the result of the fetch, but still be able to access the variable next time that template is used (with a different view parameter). Am I missing something obvious here? Thanks Matthew http://carroll.org.uk
Gaetano Giunta	Friday 12 March 2010 12:29:13 am No, it is the way cache-blocks work: the actual html is stored in the file on disk, no template-level variable. Workarounds: - move the display of the results within the cache-block (nb: cache-blocks can be nested) - let the cache-block save data into a js variable and use it later down the page for display Principal Consultant International Business Member of the Community Project Board

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