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('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_base_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.log (TEXT,TEXT,INTEGER) RETURNS VOID AS $$
31 migration_schema ALIAS FOR $1;
35 EXECUTE 'INSERT INTO ' || migration_schema || '.sql_log ( sql, row_count ) VALUES ( ' || quote_literal(sql) || ', ' || nrows || ' );';
37 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
39 CREATE OR REPLACE FUNCTION migration_tools.exec (TEXT,TEXT) RETURNS VOID AS $$
41 migration_schema ALIAS FOR $1;
45 EXECUTE 'UPDATE ' || migration_schema || '.sql_current SET sql = ' || quote_literal(sql) || ';';
47 GET DIAGNOSTICS nrows = ROW_COUNT;
48 PERFORM migration_tools.log(migration_schema,sql,nrows);
51 RAISE EXCEPTION '!!!!!!!!!!! state = %, msg = %, sql = %', SQLSTATE, SQLERRM, sql;
53 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
55 CREATE OR REPLACE FUNCTION migration_tools.init (TEXT) RETURNS VOID AS $$
57 migration_schema ALIAS FOR $1;
60 EXECUTE 'DROP TABLE IF EXISTS ' || migration_schema || '.sql_current;';
61 EXECUTE 'CREATE TABLE ' || migration_schema || '.sql_current ( sql TEXT);';
62 EXECUTE 'INSERT INTO ' || migration_schema || '.sql_current ( sql ) VALUES ( '''' );';
64 SELECT 'CREATE TABLE ' || migration_schema || '.sql_log ( time TIMESTAMP NOT NULL DEFAULT NOW(), row_count INTEGER, sql TEXT );' INTO STRICT sql;
68 RAISE INFO '!!!!!!!!!!! state = %, msg = %, sql = %', SQLSTATE, SQLERRM, sql;
70 PERFORM migration_tools.exec( $1, 'DROP TABLE IF EXISTS ' || migration_schema || '.config;' );
71 PERFORM migration_tools.exec( $1, 'CREATE TABLE ' || migration_schema || '.config ( key TEXT UNIQUE, value TEXT);' );
72 PERFORM migration_tools.exec( $1, 'INSERT INTO ' || migration_schema || '.config (key,value) VALUES ( ''production_tables'', ''asset.call_number,asset.copy_location,asset.copy,asset.stat_cat,asset.stat_cat_entry,asset.stat_cat_entry_copy_map,asset.copy_note,actor.usr,actor.card,actor.usr_address,actor.stat_cat,actor.stat_cat_entry,actor.stat_cat_entry_usr_map,actor.usr_note,action.circulation,action.hold_request,money.grocery,money.billing,money.cash_payment,money.forgive_payment'' );' );
73 PERFORM migration_tools.exec( $1, 'DROP TABLE IF EXISTS ' || migration_schema || '.fields_requiring_mapping;' );
74 PERFORM migration_tools.exec( $1, 'CREATE TABLE ' || migration_schema || '.fields_requiring_mapping( table_schema TEXT, table_name TEXT, column_name TEXT, data_type TEXT);' );
76 PERFORM migration_tools.exec( $1, 'INSERT INTO ' || migration_schema || '.config (key,value) VALUES ( ''last_init'', now() );' );
78 WHEN OTHERS THEN PERFORM migration_tools.exec( $1, 'UPDATE ' || migration_schema || '.config SET value = now() WHERE key = ''last_init'';' );
81 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
83 CREATE OR REPLACE FUNCTION migration_tools.build (TEXT) RETURNS VOID AS $$
85 migration_schema ALIAS FOR $1;
86 production_tables TEXT[];
88 --RAISE INFO 'In migration_tools.build(%)', migration_schema;
89 SELECT migration_tools.production_tables(migration_schema) INTO STRICT production_tables;
90 PERFORM migration_tools.build_base_staging_tables(migration_schema,production_tables);
92 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
94 CREATE OR REPLACE FUNCTION migration_tools.build_base_staging_tables (TEXT,TEXT[]) RETURNS VOID AS $$
96 migration_schema ALIAS FOR $1;
97 production_tables ALIAS FOR $2;
99 --RAISE INFO 'In migration_tools.build_base_staging_tables(%,%)', migration_schema, production_tables;
100 FOR i IN array_lower(production_tables,1) .. array_upper(production_tables,1) LOOP
101 PERFORM migration_tools.build_specific_base_staging_table(migration_schema,production_tables[i]);
104 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
106 CREATE OR REPLACE FUNCTION migration_tools.build_specific_base_staging_table (TEXT,TEXT) RETURNS VOID AS $$
108 migration_schema ALIAS FOR $1;
109 production_table ALIAS FOR $2;
110 base_staging_table TEXT;
113 base_staging_table = REPLACE( production_table, '.', '_' );
114 --RAISE INFO 'In migration_tools.build_specific_base_staging_table(%,%) -> %', migration_schema, production_table, base_staging_table;
115 PERFORM migration_tools.exec( $1, 'CREATE TABLE ' || migration_schema || '.' || base_staging_table || ' ( LIKE ' || production_table || ' INCLUDING DEFAULTS EXCLUDING CONSTRAINTS );' );
116 PERFORM migration_tools.exec( $1, '
117 INSERT INTO ' || migration_schema || '.fields_requiring_mapping
118 SELECT table_schema, table_name, column_name, data_type
119 FROM information_schema.columns
120 WHERE table_schema = ''' || migration_schema || ''' AND table_name = ''' || base_staging_table || ''' AND is_nullable = ''NO'' AND column_default IS NULL;
123 SELECT table_schema, table_name, column_name, data_type
124 FROM information_schema.columns
125 WHERE table_schema = migration_schema AND table_name = base_staging_table AND is_nullable = 'NO' AND column_default IS NULL
127 PERFORM migration_tools.exec( $1, 'ALTER TABLE ' || columns.table_schema || '.' || columns.table_name || ' ALTER COLUMN ' || columns.column_name || ' DROP NOT NULL;' );
130 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
132 CREATE OR REPLACE FUNCTION migration_tools.insert_base_into_production (TEXT) RETURNS VOID AS $$
134 migration_schema ALIAS FOR $1;
135 production_tables TEXT[];
137 --RAISE INFO 'In migration_tools.insert_into_production(%)', migration_schema;
138 SELECT migration_tools.production_tables(migration_schema) INTO STRICT production_tables;
139 FOR i IN array_lower(production_tables,1) .. array_upper(production_tables,1) LOOP
140 PERFORM migration_tools.insert_into_production(migration_schema,production_tables[i]);
143 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
145 CREATE OR REPLACE FUNCTION migration_tools.insert_into_production (TEXT,TEXT) RETURNS VOID AS $$
147 migration_schema ALIAS FOR $1;
148 production_table ALIAS FOR $2;
149 base_staging_table TEXT;
152 base_staging_table = REPLACE( production_table, '.', '_' );
153 --RAISE INFO 'In migration_tools.insert_into_production(%,%) -> %', migration_schema, production_table, base_staging_table;
154 PERFORM migration_tools.exec( $1, 'INSERT INTO ' || production_table || ' SELECT * FROM ' || migration_schema || '.' || base_staging_table || ';' );
156 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
158 CREATE OR REPLACE FUNCTION migration_tools.address_parse_out_citystatezip (TEXT) RETURNS TEXT[] AS $$
160 city_state_zip TEXT := $1;
165 zip := CASE WHEN city_state_zip ~ E'\\d\\d\\d\\d\\d' THEN REGEXP_REPLACE( city_state_zip, E'^.*(\\d\\d\\d\\d\\d-?\\d*).*$', E'\\1' ) ELSE '' END;
166 city_state_zip := REGEXP_REPLACE( city_state_zip, E'^(.*)\\d\\d\\d\\d\\d-?\\d*(.*)$', E'\\1\\2');
167 IF city_state_zip ~ ',' THEN
168 state := REGEXP_REPLACE( city_state_zip, E'^(.*),(.*)$', E'\\2');
169 city := REGEXP_REPLACE( city_state_zip, E'^(.*),(.*)$', E'\\1');
171 IF city_state_zip ~ E'\\s+[A-Z][A-Z]\\s*' THEN
172 state := REGEXP_REPLACE( city_state_zip, E'^.*,?\\s+([A-Z][A-Z])\\s*.*$', E'\\1' );
173 city := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s+[A-Z][A-Z](\\s*.*)$', E'\\1\\2' );
175 IF city_state_zip ~ E'^\\S+$' THEN
176 city := city_state_zip;
179 state := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s*(\\S+)\\s*$', E'\\2');
180 city := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s*(\\S+)\\s*$', E'\\1');
184 RETURN ARRAY[ TRIM(BOTH ' ' FROM city), TRIM(BOTH ' ' FROM state), TRIM(BOTH ' ' FROM zip) ];
186 $$ LANGUAGE PLPGSQL STRICT VOLATILE;
188 CREATE OR REPLACE FUNCTION migration_tools.rebarcode (o TEXT, t BIGINT) RETURNS TEXT AS $$
192 IF o ~ E'^\\d+$' AND o !~ E'^0' THEN
193 IF o::BIGINT < t THEN
200 $$ LANGUAGE PLPGSQL STRICT IMMUTABLE;