Hi,
I am having problem with @Persist(Flash) and StreamResponse.. I am using the
latest 5.0.6 release.
Here is my setup:
- I have two pages, page A is for uploading an image, and page B is for
previewing an image.
- Page A injects Page B, and Page B has a @Persist("flash") on a
"imageFilename" attribute.
- Page A's onSuccess method is called when an image file is uploaded (using
tapestry-upload), then it will call Page B's setImageFilename method to pass
on the filename being uploaded, then Page B is returned.
- Page B will use the StreamResponse approach to return the image file
(because the image file is stored in a location not directly accessible from
Internet), following the tapestry howto's instruction
(http://wiki.apache.org/tapestry/Tapestry5HowToCreatePieChartsInAPage). Page
B injects a ComponentResource for creating an action link, which in return
will be inserted in the template.. see the howto's for more detail.
And here is the problem, inside that "StreamResponse onImageFileURL()"
function, the "imageFilename" attribute is null (and as a result I cannot
read that file of course), but on Page B's template I am able to display the
value ${imageFilename}. There may have something to do which come first (the
onImageFileURL is called first before the imageFilename is set?).
Is it an issue and is there any workaround? Or just I am doing it the wrong
way?
thx!
Ronald
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