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(-)a/C4/Heading.pm (-17 lines)
Lines 151-172 sub authorities { Link Here
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    return $results;
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    return $results;
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}
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}
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=head2 preferred_authorities
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  my $preferred_authorities = $heading->preferred_authorities;
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Return a list of authority records for headings
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that are a preferred form of the heading.
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=cut
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sub preferred_authorities {
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    my $self = shift;
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    my $skipmetadata = shift || undef;
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    my ( $results, $total ) = _search( 'see-from', $skipmetadata );
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    return $results;
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}
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=head2 valid_heading_subfield
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=head2 valid_heading_subfield
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    if (C4::Heading::valid_heading_subfield('100', 'e', '')) ...
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    if (C4::Heading::valid_heading_subfield('100', 'e', '')) ...
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- 

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