Koha::Filter::MARC::EmbedSeeFromHeadings - embeds see from headings into MARC for indexing
Filter to embed see from headings into MARC records.
my $newrecord = $filter->filter($record);
my $newrecords = $filter->filter(\@records);
Embed see from headings into the specified record(s) and return the result. In order to differentiate added headings from actual headings, a 'z' is put in the first indicator.
my @fields = $filter->fields($record);
Retrieve the fields that would be embedded if the record were processed by the filter. Used during Elasticsearch indexing to give special treatment to these field (i.e. don't include in facets, sorting, or suggestion fields)