1 --------------------------------------------------------------------------
2 -- An example of how to use:
4 -- DROP SCHEMA foo CASCADE; CREATE SCHEMA foo;
6 -- SELECT migration_tools.init('foo');
7 -- SELECT migration_tools.build_default_base_staging_tables('foo');
8 -- SELECT * FROM foo.fields_requiring_mapping;
10 -- create some incoming ILS specific staging tables, like CREATE foo.legacy_items ( l_barcode TEXT, .. ) INHERITS foo.asset_copy;
11 -- Do some mapping, like UPDATE foo.legacy_items SET barcode = TRIM(BOTH ' ' FROM l_barcode);
12 -- Then, to move into production, do: select migration_tools.insert_default_into_production('foo')
14 CREATE SCHEMA migration_tools;
16 CREATE OR REPLACE FUNCTION migration_tools.production_tables (TEXT) RETURNS TEXT[] AS $$
18 migration_schema ALIAS FOR $1;
22 EXECUTE 'SELECT string_to_array(value,'','') AS tables FROM ' || migration_schema || '.config WHERE key = ''production_tables'';'
27 $$ LANGUAGE PLPGSQL STRICT STABLE;
29 CREATE OR REPLACE FUNCTION migration_tools.init (TEXT) RETURNS VOID AS $$
31 migration_schema ALIAS FOR $1;
33 EXECUTE 'CREATE SCHEMA ' || migration_schema || ';';
34 EXECUTE 'CREATE TABLE ' || migration_schema || '.config ( key TEXT UNIQUE, value TEXT);';
35 EXECUTE 'INSERT INTO ' || migration_schema || '.config (key,value) VALUES ( ''production_tables'', ''asset.call_number,asset.copy_location,asset.copy,asset.stat_cat,asset.stat_cat_entry,asset.stat_cat_entry_copy_map,asset.copy_note,actor.usr,actor.card,actor.usr_address,actor.stat_cat,actor.stat_cat_entry,actor.stat_cat_entry_usr_map,actor.usr_note,action.circulation,action.hold_request,money.grocery,money.billing,money.cash_payment,money.forgive_payment'' );';
36 EXECUTE 'DROP TABLE IF EXISTS ' || migration_schema || '.fields_requiring_mapping;';
37 EXECUTE 'CREATE TABLE ' || migration_schema || '.fields_requiring_mapping( table_schema TEXT, table_name TEXT, column_name TEXT, data_type TEXT);';
39 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
41 CREATE OR REPLACE FUNCTION migration_tools.build_default_base_staging_tables (TEXT) RETURNS VOID AS $$
43 migration_schema ALIAS FOR $1;
44 production_tables TEXT[];
46 --RAISE INFO 'In migration_tools.build_default_base_staging_tables(%)', migration_schema;
47 SELECT migration_tools.production_tables(migration_schema) INTO STRICT production_tables;
48 EXECUTE migration_tools.build_base_staging_tables(migration_schema,production_tables);
50 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
52 CREATE OR REPLACE FUNCTION migration_tools.build_base_staging_tables (TEXT,TEXT[]) RETURNS VOID AS $$
54 migration_schema ALIAS FOR $1;
55 production_tables ALIAS FOR $2;
57 --RAISE INFO 'In migration_tools.build_base_staging_tables(%,%)', migration_schema, production_tables;
58 FOR i IN array_lower(production_tables,1) .. array_upper(production_tables,1) LOOP
59 EXECUTE migration_tools.build_specific_base_staging_table(migration_schema,production_tables[i]);
62 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
64 CREATE OR REPLACE FUNCTION migration_tools.build_specific_base_staging_table (TEXT,TEXT) RETURNS VOID AS $$
66 migration_schema ALIAS FOR $1;
67 production_table ALIAS FOR $2;
68 base_staging_table TEXT;
71 base_staging_table = REPLACE( production_table, '.', '_' );
72 --RAISE INFO 'In migration_tools.build_specific_base_staging_table(%,%) -> %', migration_schema, production_table, base_staging_table;
73 EXECUTE 'CREATE TABLE ' || migration_schema || '.' || base_staging_table || ' ( like ' || production_table || ' including defaults excluding constraints );';
75 INSERT INTO ' || migration_schema || '.fields_requiring_mapping
76 SELECT table_schema, table_name, column_name, data_type
77 FROM information_schema.columns
78 WHERE table_schema = ''' || migration_schema || ''' AND table_name = ''' || base_staging_table || ''' AND is_nullable = ''NO'' AND column_default IS NULL;
81 SELECT table_schema, table_name, column_name, data_type
82 FROM information_schema.columns
83 WHERE table_schema = migration_schema AND table_name = base_staging_table AND is_nullable = 'NO' AND column_default IS NULL
85 EXECUTE 'ALTER TABLE ' || columns.table_schema || '.' || columns.table_name || ' ALTER COLUMN ' || columns.column_name || ' DROP NOT NULL;';
88 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
90 CREATE OR REPLACE FUNCTION migration_tools.insert_default_into_production (TEXT) RETURNS VOID AS $$
92 migration_schema ALIAS FOR $1;
93 production_tables TEXT[];
95 --RAISE INFO 'In migration_tools.insert_into_production(%)', migration_schema;
96 SELECT migration_tools.production_tables(migration_schema) INTO STRICT production_tables;
97 FOR i IN array_lower(production_tables,1) .. array_upper(production_tables,1) LOOP
98 EXECUTE migration_tools.insert_into_production(migration_schema,production_tables[i]);
101 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
103 CREATE OR REPLACE FUNCTION migration_tools.insert_into_production (TEXT,TEXT) RETURNS VOID AS $$
105 migration_schema ALIAS FOR $1;
106 production_table ALIAS FOR $2;
107 base_staging_table TEXT;
110 base_staging_table = REPLACE( production_table, '.', '_' );
111 --RAISE INFO 'In migration_tools.insert_into_production(%,%) -> %', migration_schema, production_table, base_staging_table;
112 EXECUTE 'INSERT INTO ' || production_table || ' SELECT * FROM ' || migration_schema || '.' || base_staging_table || ';';
114 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
116 CREATE OR REPLACE FUNCTION migration_tools.address_parse_out_citystatezip (TEXT) RETURNS TEXT[] AS $$
118 city_state_zip TEXT := $1;
123 zip := CASE WHEN city_state_zip ~ E'\\d\\d\\d\\d\\d' THEN REGEXP_REPLACE( city_state_zip, E'^.*(\\d\\d\\d\\d\\d-?\\d*).*$', E'\\1' ) ELSE '' END;
124 city_state_zip := REGEXP_REPLACE( city_state_zip, E'^(.*)\\d\\d\\d\\d\\d-?\\d*(.*)$', E'\\1\\2');
125 IF city_state_zip ~ ',' THEN
126 state := REGEXP_REPLACE( city_state_zip, E'^(.*),(.*)$', E'\\2');
127 city := REGEXP_REPLACE( city_state_zip, E'^(.*),(.*)$', E'\\1');
129 IF city_state_zip ~ E'\\s+[A-Z][A-Z]\\s*' THEN
130 state := REGEXP_REPLACE( city_state_zip, E'^.*,?\\s+([A-Z][A-Z])\\s*.*$', E'\\1' );
131 city := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s+[A-Z][A-Z](\\s*.*)$', E'\\1\\2' );
133 IF city_state_zip ~ E'^\\S+$' THEN
134 city := city_state_zip;
137 state := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s*(\\S+)\\s*$', E'\\2');
138 city := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s*(\\S+)\\s*$', E'\\1');
142 RETURN ARRAY[ TRIM(BOTH ' ' FROM city), TRIM(BOTH ' ' FROM state), TRIM(BOTH ' ' FROM zip) ];
144 $$ LANGUAGE PLPGSQL STRICT VOLATILE;