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(-)a/Koha/SearchEngine/Elasticsearch.pm (-1 / +2 lines)
Lines 691-696 sub marc_records_to_documents { Link Here
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                if ($field =~ /__sort$/) {
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                if ($field =~ /__sort$/) {
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                    # Make sure to keep the sort field length sensible. 255 was chosen as a nice round value.
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                    # Make sure to keep the sort field length sensible. 255 was chosen as a nice round value.
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                    $record_document->{$field} = [substr(join(' ', @{$record_document->{$field}}), 0, 255)];
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                    $record_document->{$field} = [substr(join(' ', @{$record_document->{$field}}), 0, 255)];
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                    # Strip any initial non-word characters which don't make much sense to sort on
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                    $record_document->{$field} = [map { s/^\W+//u; $_ } @{$record_document->{$field}}];
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                }
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                }
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            }
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            }
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        }
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        }
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