add a delimiter paramater, and a variant that returns an array of tags

[migration-tools.git] / sql / base / base.sql

diff --git a/sql/base/base.sql b/sql/base/base.sql
index aa3e990..b786140 100644 (file)
--- a/sql/base/base.sql
+++ b/sql/base/base.sql
@@ -2124,3 +2124,37 @@ CREATE OR REPLACE FUNCTION migration_tools.duplicate_template (INTEGER, INTEGER[
     END;
 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
 
+CREATE OR REPLACE FUNCTION migration_tools.get_marc_tag (TEXT, TEXT, TEXT, TEXT) RETURNS TEXT AS $$
+    my ($marcxml, $tag, $subfield, $delimiter) = @_;
+
+    use MARC::Record;
+    use MARC::File::XML;
+    use MARC::Field;
+
+    my $field;
+    eval {
+        my $marc = MARC::Record->new_from_xml($marcxml, 'UTF-8');
+        $field = $marc->field($tag);
+    };
+    return $field->as_string($subfield,$delimiter);
+$$ LANGUAGE PLPERLU STABLE;
+
+CREATE OR REPLACE FUNCTION migration_tools.get_marc_tags (TEXT, TEXT, TEXT, TEXT) RETURNS TEXT[] AS $$
+    my ($marcxml, $tag, $subfield, $delimiter) = @_;
+
+    use MARC::Record;
+    use MARC::File::XML;
+    use MARC::Field;
+
+    my @fields;
+    eval {
+        my $marc = MARC::Record->new_from_xml($marcxml, 'UTF-8');
+        @fields = $marc->field($tag);
+    };
+    my @texts;
+    foreach my $field (@fields) {
+        push @texts, $field->as_string($subfield,$delimiter);
+    }
+    return \@texts;
+$$ LANGUAGE PLPERLU STABLE;
+