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.. _valuebuilder-label:

Cataloguing plugins (value builders)
===============================================================================

With value builders you can enhance your cataloguing with additional features 
like validation, link creation, auto-generation of numbers etc.

A value builder is a perl script that, within a MARC framework, is linked to a 
certain subfield in bibliographic records, authority records or items. 

.. Note::

   Cataloguing plugins are not to be confused with 
   :ref:`Koha plugins <plugin-system-label>`

.. _setup-valuebuilder-label:

Set up
-------------------------------------------------------------------------------

*Get there:* Administration > MARC bibliographic framework

To use a value builder in your MARC framework, navigate to Administration > 
MARC bibliographic framework and then to the MARC structure of the desired 
framework.

Search for or browse to a field, and choose 'Edit subfields' from its 'Actions' 
menu. Go to the subfield's tab, and choose the relevant entry from the drop down
list at "plugin".

Example
-------------------------------------------------------------------------------

Adding the call number browser to the items editor:

#. In your MARC framework, go to field 952 and edit subfield o.
#. Choose cn_browser.pl from the 'Plugin' list.
#. Save your changes.

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