Thumbnails do not show up in browse list

[George Kozak]

Hi,

I am having an odd problem with some certain records in our DSpace instance.  These records have either PPTX or DOCX files, so I am manually generating thumbnails (with Photoshop) for them and uploading the thumbnail bitstreams.  I have had no problem with this in the past, but what I am seeing is that while the thumbnails display in the item view, they do not display in the item list view (either browse or recent items).   Only certain records are affected, and I have checked authorizations.  I am using DSPACE 6.3 with a modified Mirage 2 theme, but I have tried it with the JSPUI interface and different themes and see the same result.

I can't figure out what's happening, and I am wondering if anyone else has anything seen like this before, and can offer some suggestions.  Thanks! 

--

***************************
George Kozak
Digital Library Specialist
Cornell University Library - IT
218 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924

gs...@cornell.edu

[George Kozak]

Hi, Everyone:

So, I found a pattern to my problem of thumbnails not showing up in the browse list.  It turns out that if a submitter marks a bitstream as "primary", and I manually upload a thumbnail because the bitstream is not a PDF or image, then the thumbnail will not display in the item list BUT will display on the item view list.  Very strange.  That's only if the a thumbnail cannot be be auto generated by the filter-media and the bitstream marked primary is not a PDF or image.  Is this a bug or a feature?  ☺

George Kozak

Cornell University

[Anne Lawrence]

George,

Thank you for the clue about the primary bitstream. As reported in https://github.com/VTUL/vtechworks/issues/662, we have some items that have only the text "Thumbnail" in Browse, rather than the thumbnail, itself. However the thumbnail does appear correctly in Simple Item View for these items. I tried changing these files to 'primary' and that made the thumbnail appear correctly in Browse. I then changed them back to 'not primary' and the thumbnail still appeared correctly in Browse. We have thousands of items that are primary and not primary and their thumbnails appear correctly in Browse. Why these got this way, I don't understand but I do appreciate your help toward a fix.

Thanks,

Anne