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https://jira.duraspace.org/browse/DS-883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=22228#comment-22228
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Maureen Walsh commented on DS-883:
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Tim... a note about the traditional uses of the primary bitstream.
The primary bitstream was traditionally used (and continues in JSPUI) to
designate the image displayed as the main thumbnail.
The following was in the docs for 1.2, 1.3, and 1.4, but is not in newer
documentation:
Displaying Image Thumbnails > Browse and Search Results Page Thumbnails
• where the primary bitstream is HTML, no thumbnail is shown;
• where the primary bitstream has a thumbnail, its thumbnail is shown;
• where the primary bitstream is not set, the first thumbnail found by DSpace
will be shown;
• where the user does not have read access to the thumbnail bitstream, no
thumbnail is shown;
• currently, for a thumbnail to display, a JPEG thumbnail under the current
implementation rules must exist (i.e. primary bitstream name with ".jpg"
suffix).
> Artifact preview thumbnail in browse screens does not display primary
> bitstream
> -------------------------------------------------------------------------------
>
> Key: DS-883
> URL: https://jira.duraspace.org/browse/DS-883
> Project: DSpace
> Issue Type: Improvement
> Components: XMLUI
> Affects Versions: 1.5.2, 1.6.0, 1.6.1, 1.6.2, 1.7.0, 1.7.1, 1.7.2, 1.8.0
> Reporter: Samuel Ottenhoff
> Priority: Major
> Fix For: post-1.8.0
>
>
> Steps to replicate in XMLUI:
> 1) Add new DSpace item with one image
> 2) Run filter-media and update your browse index
> 3) View a browse index like Recent Submissions; your thumbnail now displays
> in the the browse
> 4) Go to the item
> 5) Edit this item
> 6) Item Bitstreams
> 7) Upload a new bitstream
> 8) Upload new image -> save
> 9) Click on the new image name
> 10) Make it the Primary bitstream -> Save
> 11) Run filter-media again, update the browse index
> Look at a browse index like Recent Submissions, notice that the primary
> bitstream flag is not being respected. The old image is still the thumbnail
> for this item.
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