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images query params for caching / build scripts
Is there any way to have textpattern add query params to when listing images for caching purposes? e.g. <img src=”/images/13.png?v1 />” in case I’ve replaced the image?
On a related note, does anybody have some sort of build script that works with textpattern that e.g. autmatically adds a query param to css files and such when they push a new iteration of a site live?
Curious to know what you guys use…
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Re: images query params for caching / build scripts
JanDW wrote:
Is there any way to have textpattern add query params to when listing images for caching purposes? e.g. <img src=”/images/13.png?v1 />” in case I’ve replaced the image?
I’ve used a pretty standard technique in smd_thumbnail which appends the file’s modification timestamp on the end. Thus when the file is updated a new query string is generated and (in theory) the browser will not use the cache for that first request.
But you’ll probably have to build the entire thing in PHP as I don’t know if it can (easily) be done by adding stuff after the fact:
<txp:images category="some-cat">
<txp:php>
global $path_to_site, $img_dir;
$impath = $path_to_site.DS.$img_dir.DS.image_info(array('type' => 'id')).image_info(array('type' => 'ext'));
$uDate = '?'.filemtime($impath);
echo '<img src="' . image_url(array()).$uDate. '" />';
</txp:php>
</txp:images>Something like that anyway.
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