If you wish to add an option to the OPAC search dropdown e.g. “Barcode”, you can achieve it with a single line of jquery. There is absolutely NO need to edit masthead.inc as suggested in BUG #8302 – http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=8302.This jquery one-liner does the job rather well, simply place it inside your
OPACUserJS system preference.
If you wish to know how I set the value to bc, I suggest you take a dive into this file
ccl.properties in your Koha installation.
P.S. You can also search as
bc: <your barcode number> in the search box. That works too, even without adding the option to the drop-down as you are directly passing a CCL query option back to the Koha search module.
This post is based on an earlier Facebook post published here https://www.facebook.com/l2c2technologies/posts/775648639191038 on Feb 23, 2015.