How to add virtual EZproxy prefix to relevant 856 tags

Question

We have a set of bibliographic records with 856 tags linking to certain provider. Can we add the EZproxy prefix virtually based on url server name?

Answer

Yes. There are 3 ways how a proxy prefix can be added to 856 tags, subfield u:

• manually, when cataloging
• globally, with Global Changes batch procedure - see more details in the relevant article
• virtually, which is described below

The advantage of virtual approach is that the proxy prefix is added on-the-fly when the record is displayed in OPAC and the prefix can be easily changed without any need to correct relevant bib records.

STEP 1

Create a custom fix procedure located under xxx01/tab/import, e.g. xxx01/tab/import/ezproxy.fix

The following example is adding the prefix to www.jstor.org links only:

!-!!!!!-!!-!-!!!-!!!-!!!!!-!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!-!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...
1 856##                    CHANGE-SECOND-IND-MATCH        #,X,www.jstor.org
1 856#X                    REPLACE-STRING                 $$u,$$uhttp://ezproxy.my.edu?url=
1 856#X                    CHANGE-SECOND-IND              X,

STEP 2

To activate the custom fix procedure, add the following line to xxx01/tab/tab_expand, section BUF-Z403:

BUF-Z403   fix_doc_do_file_08             ezproxy.fix

STEP 3

To put both changes alive, you need to restart Aleph WWW server and check on the relevant example in your OPAC.

• Article last edited: 07-Feb-2019