migration_tools.attempt_hz_date

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

diff --git a/sql/base/base.sql b/sql/base/base.sql
index 8ea837a..c82ecd1 100644 (file)
--- a/sql/base/base.sql
+++ b/sql/base/base.sql
@@ -410,8 +410,8 @@ CREATE OR REPLACE FUNCTION migration_tools.name_parse_out_last_first_middle_and_
         END IF;
 
         family_name := BTRIM( REGEXP_REPLACE(temp,E'^(\\S+).*$',E'\\1') );
-        first_given_name := BTRIM( REGEXP_REPLACE(temp,E'^\\S+\\s+(\\S+).*$',E'\\1') );
-        second_given_name := BTRIM( REGEXP_REPLACE(temp,E'^\\S+\\s+\\S+\\s*(.*)$',E'\\1') );
+        first_given_name := CASE WHEN temp ~ E'^\\S+$' THEN 'N/A' ELSE BTRIM( REGEXP_REPLACE(temp,E'^\\S+\\s+(\\S+).*$',E'\\1') ) END;
+        second_given_name := CASE WHEN temp ~ E'^\\S+$' THEN '' ELSE BTRIM( REGEXP_REPLACE(temp,E'^\\S+\\s+\\S+\\s*(.*)$',E'\\1') ) END;
 
         RETURN ARRAY[ family_name, prefix, first_given_name, second_given_name, suffix ];
     END;
@@ -747,6 +747,27 @@ CREATE OR REPLACE FUNCTION migration_tools.attempt_timestamptz (TEXT,TEXT) RETUR
     END;
 $$ LANGUAGE PLPGSQL STRICT STABLE;
 
+CREATE OR REPLACE FUNCTION migration_tools.attempt_hz_date (TEXT,TEXT) RETURNS DATE AS $$
+    DECLARE
+        attempt_value ALIAS FOR $1;
+        fail_value ALIAS FOR $2;
+        output DATE;
+    BEGIN
+        FOR output IN
+            EXECUTE E'SELECT (\'1970-01-01\'::date + \'' || attempt_value || E' days\'::interval)::date AS a;'
+        LOOP
+            RETURN output;
+        END LOOP;
+    EXCEPTION
+        WHEN OTHERS THEN
+            FOR output IN
+                EXECUTE 'SELECT ' || quote_literal(fail_value) || '::date AS a;'
+            LOOP
+                RETURN output;
+            END LOOP;
+    END;
+$$ LANGUAGE PLPGSQL STRICT STABLE;
+
 CREATE OR REPLACE FUNCTION migration_tools.attempt_money (TEXT,TEXT) RETURNS NUMERIC(8,2) AS $$
     DECLARE
         attempt_value ALIAS FOR $1;