It is sorting using the 'Title' index. Look at the URL in the OPAC, it contains sort_by=title_az. Then look for title_az on C4/Search.pm. You will notice it does: $sort_by .= "1=4 <i "; and then if you look at bib1.att, you will see: att 4 Title So that's it. Hope it helps. 2015-05-29 4:51 GMT-03:00 Tajoli Zeno <z.tajoli@cineca.it>:

Hi,

reading from etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml I see that from 245 $a are crerated two indexes: Title and Title-cover:

<index_subfields tag="245" subfields="a"> <target_index>Title-cover:w</target_index> <target_index>Title-cover:p</target_index> <target_index>Title-cover:s</target_index> <target_index>Title:w</target_index> <target_index>Title:p</target_index> <target_index>Title:s</target_index> </index_subfields>

Sort by title (A-Z) and (Z-A) in opac are based only on 'Title' Zebra index or also on Title-cover ? It is not clear for me.

Bye Zeno Tajoli _______________________________________________ Koha-devel mailing list Koha-devel@lists.koha-community.org http://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-devel website : http://www.koha-community.org/ git : http://git.koha-community.org/ bugs : http://bugs.koha-community.org/

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