Hello,
I posted back at the end of July about my RIFE/CRUD application which
maintains a database of photographs, watermarking the images as they are
entered. Until yesterday I thought this was working as expected, but I
now find a problem with new images (i.e. ones that are not already in
the CMF table in their unwatermarked form, with all their attendant text
data also in CMF). The images ARE watermarked, but not with the text I
expect. I want the watermark to contain the name of the photographer
and the year the image was taken, both of which are bean properties
entered elsewhere in RIFE/CRUD's add data form. The relevant constraint
in my bean is:
addConstraint(new ConstrainedProperty("image")
.notNull(true)
.file(true)
.listed(false)
.mimeType(MimeType.IMAGE_JPEG)
.contentAttribute("watermark", this.getPhotographer() + " "
+ DateTimeUtils.datePart(this.getDate(), Calendar.YEAR))
.transformer(WATERMARKER));
where getPhotographer() and getDate() are getters in the current bean.
Unfortunately, the first time I enter an image, the watermark ends up
as:
(c) null 2007
which is because the bean properties aren't accessible or set at the
point when the transform is applied to the image. If I then edit that
record and re-upload the image, it is watermarked correctly, clearly
because the bean has been loaded with existing data from the CMF.
Within my "transform" method in the WatermarkImageTransformer, I see
that the "attr" map does indeed contain a key "watermark" but that it is
has been populated with a null value and default year.
Am I wrong to expect this code to work? Or is there something else I
have to do to ensure the transform is done at a different point in the
data entry process? Or some extra thing I have to do in the "transform"
method to ensure the data is loaded?
Thanks for any help,
David Herbert
British Antarctic Survey.
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