From: Jason Stephenson Date: Fri, 8 Mar 2019 18:54:35 +0000 (-0500) Subject: Lp 712490: Stamping UPgrade Script X-Git-Url: https://old-git.evergreen-ils.org/?a=commitdiff_plain;h=f098f38804e33b4c056290335b3efe39117419d9;p=Evergreen.git Lp 712490: Stamping UPgrade Script Signed-off-by: Jason Stephenson --- diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql index cc481e9fdc..b6f266531c 100644 --- a/Open-ILS/src/sql/Pg/002.schema.config.sql +++ b/Open-ILS/src/sql/Pg/002.schema.config.sql @@ -92,7 +92,7 @@ CREATE TRIGGER no_overlapping_deps BEFORE INSERT OR UPDATE ON config.db_patch_dependencies FOR EACH ROW EXECUTE PROCEDURE evergreen.array_overlap_check ('deprecates'); -INSERT INTO config.upgrade_log (version, applied_to) VALUES ('1156', :eg_version); -- rogan/jvwoolf/csharp +INSERT INTO config.upgrade_log (version, applied_to) VALUES ('1157', :eg_version); -- berick/sandbergja/Dyrcona CREATE TABLE config.bib_source ( id SERIAL PRIMARY KEY, diff --git a/Open-ILS/src/sql/Pg/upgrade/1157.schema.vandelay-replace-field-order.sql b/Open-ILS/src/sql/Pg/upgrade/1157.schema.vandelay-replace-field-order.sql new file mode 100644 index 0000000000..39f59a96e7 --- /dev/null +++ b/Open-ILS/src/sql/Pg/upgrade/1157.schema.vandelay-replace-field-order.sql @@ -0,0 +1,202 @@ +BEGIN; + +SELECT evergreen.upgrade_deps_block_check('1157', :eg_version); + +CREATE OR REPLACE FUNCTION vandelay.replace_field + (target_xml TEXT, source_xml TEXT, field TEXT) RETURNS TEXT AS $_$ + + use strict; + use MARC::Record; + use MARC::Field; + use MARC::File::XML (BinaryEncoding => 'UTF-8'); + use MARC::Charset; + + MARC::Charset->assume_unicode(1); + + my $target_xml = shift; + my $source_xml = shift; + my $field_spec = shift; + + my $target_r = MARC::Record->new_from_xml($target_xml); + my $source_r = MARC::Record->new_from_xml($source_xml); + + return $target_xml unless $target_r && $source_r; + + # Extract the field_spec components into MARC tags, subfields, + # and regex matches. Copied wholesale from vandelay.strip_field() + + my @field_list = split(',', $field_spec); + my %fields; + for my $f (@field_list) { + $f =~ s/^\s*//; $f =~ s/\s*$//; + if ($f =~ /^(.{3})(\w*)(?:\[([^]]*)\])?$/) { + my $field = $1; + $field =~ s/\s+//; + my $sf = $2; + $sf =~ s/\s+//; + my $match = $3; + $match =~ s/^\s*//; $match =~ s/\s*$//; + $fields{$field} = { sf => [ split('', $sf) ] }; + if ($match) { + my ($msf,$mre) = split('~', $match); + if (length($msf) > 0 and length($mre) > 0) { + $msf =~ s/^\s*//; $msf =~ s/\s*$//; + $mre =~ s/^\s*//; $mre =~ s/\s*$//; + $fields{$field}{match} = { sf => $msf, re => qr/$mre/ }; + } + } + } + } + + # Returns a flat list of subfield (code, value, code, value, ...) + # suitable for adding to a MARC::Field. + sub generate_replacement_subfields { + my ($source_field, $target_field, @controlled_subfields) = @_; + + # Performing a wholesale field replacment. + # Use the entire source field as-is. + return map {$_->[0], $_->[1]} $source_field->subfields + unless @controlled_subfields; + + my @new_subfields; + + # Iterate over all target field subfields: + # 1. Keep uncontrolled subfields as is. + # 2. Replace values for controlled subfields when a + # replacement value exists on the source record. + # 3. Delete values for controlled subfields when no + # replacement value exists on the source record. + + for my $target_sf ($target_field->subfields) { + my $subfield = $target_sf->[0]; + my $target_val = $target_sf->[1]; + + if (grep {$_ eq $subfield} @controlled_subfields) { + if (my $source_val = $source_field->subfield($subfield)) { + # We have a replacement value + push(@new_subfields, $subfield, $source_val); + } else { + # no replacement value for controlled subfield, drop it. + } + } else { + # Field is not controlled. Copy it over as-is. + push(@new_subfields, $subfield, $target_val); + } + } + + # Iterate over all subfields in the source field and back-fill + # any values that exist only in the source field. Insert these + # subfields in the same relative position they exist in the + # source field. + + my @seen_subfields; + for my $source_sf ($source_field->subfields) { + my $subfield = $source_sf->[0]; + my $source_val = $source_sf->[1]; + push(@seen_subfields, $subfield); + + # target field already contains this subfield, + # so it would have been addressed above. + next if $target_field->subfield($subfield); + + # Ignore uncontrolled subfields. + next unless grep {$_ eq $subfield} @controlled_subfields; + + # Adding a new subfield. Find its relative position and add + # it to the list under construction. Work backwards from + # the list of already seen subfields to find the best slot. + + my $done = 0; + for my $seen_sf (reverse(@seen_subfields)) { + my $idx = @new_subfields; + for my $new_sf (reverse(@new_subfields)) { + $idx--; + next if $idx % 2 == 1; # sf codes are in the even slots + + if ($new_subfields[$idx] eq $seen_sf) { + splice(@new_subfields, $idx + 2, 0, $subfield, $source_val); + $done = 1; + last; + } + } + last if $done; + } + + # if no slot was found, add to the end of the list. + push(@new_subfields, $subfield, $source_val) unless $done; + } + + return @new_subfields; + } + + # MARC tag loop + for my $f (keys %fields) { + my $tag_idx = -1; + for my $target_field ($target_r->field($f)) { + + # field spec contains a regex for this field. Confirm field on + # target record matches the specified regex before replacing. + if (exists($fields{$f}{match})) { + next unless (grep { $_ =~ $fields{$f}{match}{re} } + $target_field->subfield($fields{$f}{match}{sf})); + } + + my @new_subfields; + my @controlled_subfields = @{$fields{$f}{sf}}; + + # If the target record has multiple matching bib fields, + # replace them from matching fields on the source record + # in a predictable order to avoid replacing with them with + # same source field repeatedly. + my @source_fields = $source_r->field($f); + my $source_field = $source_fields[++$tag_idx]; + + if (!$source_field && @controlled_subfields) { + # When there are more target fields than source fields + # and we are replacing values for subfields and not + # performing wholesale field replacment, use the last + # available source field as the input for all remaining + # target fields. + $source_field = $source_fields[$#source_fields]; + } + + if (!$source_field) { + # No source field exists. Delete all affected target + # data. This is a little bit counterintuitive, but is + # backwards compatible with the previous version of this + # function which first deleted all affected data, then + # replaced values where possible. + if (@controlled_subfields) { + $target_field->delete_subfield($_) for @controlled_subfields; + } else { + $target_r->delete_field($target_field); + } + next; + } + + my @new_subfields = generate_replacement_subfields( + $source_field, $target_field, @controlled_subfields); + + # Build the replacement field from scratch. + my $replacement_field = MARC::Field->new( + $target_field->tag, + $target_field->indicator(1), + $target_field->indicator(2), + @new_subfields + ); + + $target_field->replace_with($replacement_field); + } + } + + $target_xml = $target_r->as_xml_record; + $target_xml =~ s/^<\?.+?\?>$//mo; + $target_xml =~ s/\n//sgo; + $target_xml =~ s/>\s+ 'UTF-8'); - use MARC::Charset; - - MARC::Charset->assume_unicode(1); - - my $target_xml = shift; - my $source_xml = shift; - my $field_spec = shift; - - my $target_r = MARC::Record->new_from_xml($target_xml); - my $source_r = MARC::Record->new_from_xml($source_xml); - - return $target_xml unless $target_r && $source_r; - - # Extract the field_spec components into MARC tags, subfields, - # and regex matches. Copied wholesale from vandelay.strip_field() - - my @field_list = split(',', $field_spec); - my %fields; - for my $f (@field_list) { - $f =~ s/^\s*//; $f =~ s/\s*$//; - if ($f =~ /^(.{3})(\w*)(?:\[([^]]*)\])?$/) { - my $field = $1; - $field =~ s/\s+//; - my $sf = $2; - $sf =~ s/\s+//; - my $match = $3; - $match =~ s/^\s*//; $match =~ s/\s*$//; - $fields{$field} = { sf => [ split('', $sf) ] }; - if ($match) { - my ($msf,$mre) = split('~', $match); - if (length($msf) > 0 and length($mre) > 0) { - $msf =~ s/^\s*//; $msf =~ s/\s*$//; - $mre =~ s/^\s*//; $mre =~ s/\s*$//; - $fields{$field}{match} = { sf => $msf, re => qr/$mre/ }; - } - } - } - } - - # Returns a flat list of subfield (code, value, code, value, ...) - # suitable for adding to a MARC::Field. - sub generate_replacement_subfields { - my ($source_field, $target_field, @controlled_subfields) = @_; - - # Performing a wholesale field replacment. - # Use the entire source field as-is. - return map {$_->[0], $_->[1]} $source_field->subfields - unless @controlled_subfields; - - my @new_subfields; - - # Iterate over all target field subfields: - # 1. Keep uncontrolled subfields as is. - # 2. Replace values for controlled subfields when a - # replacement value exists on the source record. - # 3. Delete values for controlled subfields when no - # replacement value exists on the source record. - - for my $target_sf ($target_field->subfields) { - my $subfield = $target_sf->[0]; - my $target_val = $target_sf->[1]; - - if (grep {$_ eq $subfield} @controlled_subfields) { - if (my $source_val = $source_field->subfield($subfield)) { - # We have a replacement value - push(@new_subfields, $subfield, $source_val); - } else { - # no replacement value for controlled subfield, drop it. - } - } else { - # Field is not controlled. Copy it over as-is. - push(@new_subfields, $subfield, $target_val); - } - } - - # Iterate over all subfields in the source field and back-fill - # any values that exist only in the source field. Insert these - # subfields in the same relative position they exist in the - # source field. - - my @seen_subfields; - for my $source_sf ($source_field->subfields) { - my $subfield = $source_sf->[0]; - my $source_val = $source_sf->[1]; - push(@seen_subfields, $subfield); - - # target field already contains this subfield, - # so it would have been addressed above. - next if $target_field->subfield($subfield); - - # Ignore uncontrolled subfields. - next unless grep {$_ eq $subfield} @controlled_subfields; - - # Adding a new subfield. Find its relative position and add - # it to the list under construction. Work backwards from - # the list of already seen subfields to find the best slot. - - my $done = 0; - for my $seen_sf (reverse(@seen_subfields)) { - my $idx = @new_subfields; - for my $new_sf (reverse(@new_subfields)) { - $idx--; - next if $idx % 2 == 1; # sf codes are in the even slots - - if ($new_subfields[$idx] eq $seen_sf) { - splice(@new_subfields, $idx + 2, 0, $subfield, $source_val); - $done = 1; - last; - } - } - last if $done; - } - - # if no slot was found, add to the end of the list. - push(@new_subfields, $subfield, $source_val) unless $done; - } - - return @new_subfields; - } - - # MARC tag loop - for my $f (keys %fields) { - my $tag_idx = -1; - for my $target_field ($target_r->field($f)) { - - # field spec contains a regex for this field. Confirm field on - # target record matches the specified regex before replacing. - if (exists($fields{$f}{match})) { - next unless (grep { $_ =~ $fields{$f}{match}{re} } - $target_field->subfield($fields{$f}{match}{sf})); - } - - my @new_subfields; - my @controlled_subfields = @{$fields{$f}{sf}}; - - # If the target record has multiple matching bib fields, - # replace them from matching fields on the source record - # in a predictable order to avoid replacing with them with - # same source field repeatedly. - my @source_fields = $source_r->field($f); - my $source_field = $source_fields[++$tag_idx]; - - if (!$source_field && @controlled_subfields) { - # When there are more target fields than source fields - # and we are replacing values for subfields and not - # performing wholesale field replacment, use the last - # available source field as the input for all remaining - # target fields. - $source_field = $source_fields[$#source_fields]; - } - - if (!$source_field) { - # No source field exists. Delete all affected target - # data. This is a little bit counterintuitive, but is - # backwards compatible with the previous version of this - # function which first deleted all affected data, then - # replaced values where possible. - if (@controlled_subfields) { - $target_field->delete_subfield($_) for @controlled_subfields; - } else { - $target_r->delete_field($target_field); - } - next; - } - - my @new_subfields = generate_replacement_subfields( - $source_field, $target_field, @controlled_subfields); - - # Build the replacement field from scratch. - my $replacement_field = MARC::Field->new( - $target_field->tag, - $target_field->indicator(1), - $target_field->indicator(2), - @new_subfields - ); - - $target_field->replace_with($replacement_field); - } - } - - $target_xml = $target_r->as_xml_record; - $target_xml =~ s/^<\?.+?\?>$//mo; - $target_xml =~ s/\n//sgo; - $target_xml =~ s/>\s+