[Koha] Barcode display in opac:koha 17.11

[Michael Kuhn]

Hi Vikram

 > I could not find setting in administration, could you guide me?

Indeed the Koha 18.05 manual says there is a system preference named 
"OPACShowBarcode", but no further information is given. The preference 
actually doesn't seem to exist anymore in Koha 18.05...
however table "systempreferences" in my demo installation of Koha 18.05 
does NOT contain the variable "OPACShowBarcode" anymore...

https://koha-community.org/manual/18.05/cs/html/12_opac.html

In Koha 17.11 the manual entry was still there:

https://koha-community.org/manual/17.11/en/html/02_administration.html#opacshowbarcode

In Bugzilla I found issue 
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19038 (Bug 
19038 - Remove OPACShowBarcode syspref).

As it turns out the new Koha menu "Administration > Columns settings > 
OPAC" was introduced with Koha 17.11 where column "item_barcode" is 
deactivated by default. But you can turn it on there, see

http://koha.adminkuhn.ch/cgi-bin/koha/opac-detail.pl?biblionumber=467

Best wishes: Michael
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