[Koha-bugs] [Bug 6381] New: New script needed to populate 856$q field based on contents of 856$u

[bugzilla-daemon at bugs.koha-community.org]

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=6381

             Bug #: 6381
           Summary: New script needed to populate 856$q field based on
                    contents of 856$u
    Classification: Unclassified
 Change sponsored?: ---
           Product: Koha
           Version: master
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: Command-line Utilities
        AssignedTo: gmcharlt at gmail.com
        ReportedBy: dearden at sarsf.org
         QAContact: koha-bugs at lists.koha-community.org


One of the new features implemented in the 3.4 release is the ability to use
the 856$u field to store a URI that points to an image file, and display the
image rather than standard or optional link text (see bug 5738).  This feature
is turned on by a system preference, but is also controlled at the record level
by the contents of the corresponding 856$q field.  If the 856$q field is empty
or does not have a valid MIME type entered in it the corresponding 856$u field
will not be displayed as an image regardless of the system preference setting.

A script is needed that will read the contents of each of the 856$u fields
looking for one of the valid MIME type extensions at the end of the file name
(bmp, cod, gif, ief, jpe, jpeg, jpg, jfif, png, svg, tif, tiff, ras, cmx, ico,
pnm, pbm, pgm, ppm, rgb, xbm, xpm, xwd), check to see if there is a
corresponding 856$q field, and populate it accordingly or create a new 856$q
field if one doesn’t exist.   Options passed to the script should allow for the
856$q field to be left unchanged if it is not empty, or to be overwritten
regardless of content if a valid MIME extension is found in the corresponding
856$u field. 

I have been working on this script but find myself out of my depth, and have
other commitments I must turn my attention to.  If any of you experienced Koha
perl coders is willing to do this I will be happy to do the testing and sign
off work.

Thanks - Doug

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