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Is it possible, in XSLT, to check if an image physically exists? This is just in a folder on the website, it is not in the Media Library or attached to a node.
Or is the only option to write an XSLT extension?
Hi Gordon,
Say hello again to our good friend uComponents... we have an extension in our IO methods for checking if a File (or Directory) exists:
http://ucomponents.codeplex.com/wikipage?title=IO
You'll need to specify the full path to the file, so we've got a Server.MapPath extension in there too.
<xsl:if test="ucomponents.io:FileExists(ucomponents.io:GetServerMapPath(umbracoFile))">
Cheers, Lee.
OK - I added this to
<ext assembly="uComponents.Core" type="uComponents.Core.XsltExtensions.IO" alias="ucomponents.io" />
xsltExtension.config.
I added
xmlns:ucomponents.io="urn:ucomponents.io"
to the XSLT, as well as
ucomponents.io
to the exclusions list.
I then added an IF like this
<xsl:if test="ucomponents.io:FileExists(ucomponents.io:GetServerMapPath($img1))">
where $img1 is something like "/folder/imagename.jpg"
but it doesn't work? It thinks the image is there, but it most definitely isn't.
Ran a test on my dev install... which *appears* to be working fine... (I literally copy-n-pasted your IF query).
Wondering where the value of "$img1" comes from? Is it a property or string built up from elsewhere?
Is "/folder/imagename.jpg" an accurate example? Does it definitely have a leading slash?
Thanks, Lee.
Umm, odd! I made a change to test the value of the $img1 variable and now it works ... !?!
Curious how/why the test would change the outcome... Still glad that you got it working!
is working on a reply...
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Check if image exists
Is it possible, in XSLT, to check if an image physically exists? This is just in a folder on the website, it is not in the Media Library or attached to a node.
Or is the only option to write an XSLT extension?
Hi Gordon,
Say hello again to our good friend uComponents... we have an extension in our IO methods for checking if a File (or Directory) exists:
http://ucomponents.codeplex.com/wikipage?title=IO
You'll need to specify the full path to the file, so we've got a Server.MapPath extension in there too.
Cheers, Lee.
OK - I added this to
xsltExtension.config.
I added
to the XSLT, as well as
ucomponents.ioto the exclusions list.
I then added an IF like this
where $img1 is something like "/folder/imagename.jpg"
but it doesn't work? It thinks the image is there, but it most definitely isn't.
Hi Gordon,
Ran a test on my dev install... which *appears* to be working fine... (I literally copy-n-pasted your IF query).
Wondering where the value of "$img1" comes from? Is it a property or string built up from elsewhere?
Is "/folder/imagename.jpg" an accurate example? Does it definitely have a leading slash?
Thanks, Lee.
Umm, odd! I made a change to test the value of the $img1 variable and now it works ... !?!
Curious how/why the test would change the outcome... Still glad that you got it working!
is working on a reply...