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(-)a/Koha/Biblio.pm (-2 / +14 lines)
Lines 979-985 sub custom_cover_image_url { Link Here
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        $url =~ s|{isbn}|$isbn|g;
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        $url =~ s|{isbn}|$isbn|g;
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    }
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    }
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    if ( $url =~ m|{normalized_isbn}| ) {
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    if ( $url =~ m|{normalized_isbn}| ) {
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        my $normalized_isbn = C4::Koha::GetNormalizedISBN($self->biblioitem->isbn);
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        my $normalized_isbn = $self->normalized_isbn;
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        return unless $normalized_isbn;
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        return unless $normalized_isbn;
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        $url =~ s|{normalized_isbn}|$normalized_isbn|g;
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        $url =~ s|{normalized_isbn}|$normalized_isbn|g;
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    }
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    }
Lines 1249-1254 sub get_marc_authors { Link Here
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    return [@first_authors, @other_authors];
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    return [@first_authors, @other_authors];
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}
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}
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=head3 normalized_isbn
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    my $normalized_isbn = $biblio->normalized_isbn
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Normalizes and returns the first valid ISBN found in the record.
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ISBN13 are converted into ISBN10. This is required to get some book cover images.
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=cut
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sub normalized_isbn {
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    my ( $self) = @_;
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    return C4::Koha::GetNormalizedISBN($self->biblioitem->isbn);
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}
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=head3 to_api
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=head3 to_api
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