6101 - add paint_prices table (#416)

migrations/000.497.sql

@@ -0,0 +1,23 @@
+-- Change so paint price is per bucket size instead of per liter
+ALTER TABLE prices_other_products DROP COLUMN IF EXISTS paint_price_per_liter;
+
+DROP TABLE IF EXISTS paint_prices;
+
+CREATE TABLE paint_prices (
+    liters           NUMERIC NOT NULL,
+    market_id        INT REFERENCES markets (id) NOT NULL,
+    price            NUMERIC NOT NULL CHECK (price > 0),
+    created          timestamp with time zone NOT NULL DEFAULT now(),
+    updated          timestamp with time zone DEFAULT NULL,
+    PRIMARY KEY (liters, market_id)
+);
+
+CREATE TRIGGER updated_timestamp BEFORE UPDATE ON paint_prices FOR EACH ROW EXECUTE PROCEDURE updated_timestamp();
+
+-- for each market in markets, add a row for each paint size
+INSERT INTO paint_prices (liters, market_id, price)
+  SELECT liters, markets.id, 19 FROM paint_primer_sizes CROSS JOIN markets WHERE paint_primer_id=1 ORDER BY markets.id, liters;
+
+-- set some made up prices for the different paint sizes
+UPDATE paint_prices SET price = 99 WHERE liters = 0.9;
+UPDATE paint_prices SET price = 199 WHERE liters = 2.7;