(no commit message)

diff --git a/sql/base/base_migration_schema_procs.sql b/sql/base/base_migration_schema_procs.sql
new file mode 100644 (file)
index 0000000..662eaf7
--- /dev/null
+++ b/sql/base/base_migration_schema_procs.sql
@@ -0,0 +1,137 @@
+--------------------------------------------------------------------------
+-- An example of how to use:
+-- 
+-- DROP SCHEMA foo CASCADE; CREATE SCHEMA foo; 
+-- \i base_migration_schema_procs.sql
+-- SELECT migration_tools.build_default_base_staging_tables('foo');
+-- SELECT * FROM migration_tools.fields_requiring_mapping;
+-- \d foo.actor_usr
+-- create some incoming ILS specific staging tables, like CREATE foo.legacy_items ( l_barcode TEXT, .. ) INHERITS foo.asset_copy;
+-- Do some mapping, like UPDATE foo.legacy_items SET barcode = TRIM(BOTH ' ' FROM l_barcode);
+-- Then, to move into production, do: select migration_tools.insert_default_into_production('foo')
+
+CREATE SCHEMA migration_tools;
+
+CREATE TABLE migration_tools.config (
+    key TEXT UNIQUE,
+    value TEXT
+);
+
+INSERT INTO migration_tools.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' );
+
+CREATE OR REPLACE FUNCTION migration_tools.production_tables () RETURNS TEXT[] AS $$
+    SELECT string_to_array(value,',') FROM migration_tools.config WHERE key = 'production_tables';
+$$ LANGUAGE SQL STRICT STABLE;
+
+-- This table is informational; feel free to modify etc.
+DROP TABLE IF EXISTS migration_tools.fields_requiring_mapping;
+CREATE TABLE migration_tools.fields_requiring_mapping(
+    table_schema TEXT, 
+    table_name TEXT, 
+    column_name TEXT, 
+    data_type TEXT
+);
+
+CREATE OR REPLACE FUNCTION migration_tools.build_default_base_staging_tables (TEXT) RETURNS VOID AS $$
+    DECLARE
+        migration_schema ALIAS FOR $1;
+        production_tables TEXT[];
+    BEGIN
+        --RAISE INFO 'In migration_tools.build_default_base_staging_tables(%)', migration_schema;
+        SELECT migration_tools.production_tables() INTO STRICT production_tables;
+        EXECUTE migration_tools.build_base_staging_tables(migration_schema,production_tables);
+    END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+
+CREATE OR REPLACE FUNCTION migration_tools.build_base_staging_tables (TEXT,TEXT[]) RETURNS VOID AS $$
+    DECLARE
+        migration_schema ALIAS FOR $1;
+        production_tables ALIAS FOR $2;
+    BEGIN
+        --RAISE INFO 'In migration_tools.build_base_staging_tables(%,%)', migration_schema, production_tables;
+        FOR i IN array_lower(production_tables,1) .. array_upper(production_tables,1) LOOP
+            EXECUTE migration_tools.build_specific_base_staging_table(migration_schema,production_tables[i]);
+        END LOOP;
+    END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+
+CREATE OR REPLACE FUNCTION migration_tools.build_specific_base_staging_table (TEXT,TEXT) RETURNS VOID AS $$
+    DECLARE
+        migration_schema ALIAS FOR $1;
+        production_table ALIAS FOR $2;
+        base_staging_table TEXT;
+        columns RECORD;
+    BEGIN
+        base_staging_table = REPLACE( production_table, '.', '_' );
+        --RAISE INFO 'In migration_tools.build_specific_base_staging_table(%,%) -> %', migration_schema, production_table, base_staging_table;
+        EXECUTE 'CREATE TABLE ' || migration_schema || '.' || base_staging_table || ' ( like ' || production_table || ' including defaults excluding constraints );';
+        INSERT INTO migration_tools.fields_requiring_mapping
+            SELECT table_schema, table_name, column_name, data_type
+            FROM information_schema.columns 
+            WHERE table_schema = migration_schema AND table_name = base_staging_table AND is_nullable = 'NO' AND column_default IS NULL;
+        FOR columns IN 
+            SELECT table_schema, table_name, column_name, data_type
+            FROM information_schema.columns 
+            WHERE table_schema = migration_schema AND table_name = base_staging_table AND is_nullable = 'NO' AND column_default IS NULL
+        LOOP
+            EXECUTE 'ALTER TABLE ' || columns.table_schema || '.' || columns.table_name || ' ALTER COLUMN ' || columns.column_name || ' DROP NOT NULL;';
+        END LOOP;
+    END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+
+CREATE OR REPLACE FUNCTION migration_tools.insert_default_into_production (TEXT) RETURNS VOID AS $$
+    DECLARE
+        migration_schema ALIAS FOR $1;
+        production_tables TEXT[];
+    BEGIN
+        --RAISE INFO 'In migration_tools.insert_into_production(%)', migration_schema;
+        SELECT migration_tools.production_tables() INTO STRICT production_tables;
+        FOR i IN array_lower(production_tables,1) .. array_upper(production_tables,1) LOOP
+            EXECUTE migration_tools.insert_into_production(migration_schema,production_tables[i]);
+        END LOOP;
+    END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+
+CREATE OR REPLACE FUNCTION migration_tools.insert_into_production (TEXT,TEXT) RETURNS VOID AS $$
+    DECLARE
+        migration_schema ALIAS FOR $1;
+        production_table ALIAS FOR $2;
+        base_staging_table TEXT;
+        columns RECORD;
+    BEGIN
+        base_staging_table = REPLACE( production_table, '.', '_' );
+        --RAISE INFO 'In migration_tools.insert_into_production(%,%) -> %', migration_schema, production_table, base_staging_table;
+        EXECUTE 'INSERT INTO ' || production_table || ' SELECT * FROM ' || migration_schema || '.' || base_staging_table || ';';
+    END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+
+CREATE OR REPLACE FUNCTION migration_tools.address_parse_out_citystatezip (TEXT) RETURNS TEXT[] AS $$
+    DECLARE
+        city_state_zip TEXT := $1;
+        city TEXT := '';
+        state TEXT := '';
+        zip TEXT := '';
+    BEGIN
+        zip := CASE WHEN city_state_zip ~ E'\\d\\d\\d\\d\\d' THEN REGEXP_REPLACE( city_state_zip, E'^.*(\\d\\d\\d\\d\\d-?\\d*).*$', E'\\1' ) ELSE '' END;
+        city_state_zip := REGEXP_REPLACE( city_state_zip, E'^(.*)\\d\\d\\d\\d\\d-?\\d*(.*)$', E'\\1\\2');
+        IF city_state_zip ~ ',' THEN
+            state := REGEXP_REPLACE( city_state_zip, E'^(.*),(.*)$', E'\\2');
+            city := REGEXP_REPLACE( city_state_zip, E'^(.*),(.*)$', E'\\1');
+        ELSE
+            IF city_state_zip ~ E'\\s+[A-Z][A-Z]\\s*' THEN
+                state := REGEXP_REPLACE( city_state_zip, E'^.*,?\\s+([A-Z][A-Z])\\s*.*$', E'\\1' );
+                city := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s+[A-Z][A-Z](\\s*.*)$', E'\\1\\2' );
+            ELSE
+                IF city_state_zip ~ E'^\\S+$'  THEN
+                    city := city_state_zip;
+                    state := 'N/A';
+                ELSE
+                    state := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s*(\\S+)\\s*$', E'\\2');
+                    city := REGEXP_REPLACE( city_state_zip, E'^(.*?),?\\s*(\\S+)\\s*$', E'\\1');
+                END IF;
+            END IF;
+        END IF;
+        RETURN ARRAY[ TRIM(BOTH ' ' FROM city), TRIM(BOTH ' ' FROM state), TRIM(BOTH ' ' FROM zip) ];
+    END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+