Fixes in migrations

deploy/db_migrations/basket-svc/0001_create_base_tables.up.sql

@@ -7,28 +7,41 @@ CREATE TABLE IF NOT EXISTS basket.basket
     PRIMARY KEY (id)
 );
 
+ALTER TABLE IF EXISTS basket.basket OWNER to egommerce;
+
 CREATE TABLE IF NOT EXISTS basket.basket_item
 (
     id uuid NOT NULL DEFAULT gen_random_uuid(),
     basket_id uuid NOT NULL,
-    product_id integer NOT NULL,
+    product_id uuid NOT NULL,
     quantity integer NOT NULL DEFAULT 1,
     price double precision NOT NULL DEFAULT 0.00,
     created_at timestamp without time zone NOT NULL DEFAULT now(),
     updated_at timestamp without time zone,
-    PRIMARY KEY (id)
+    PRIMARY KEY (id),
+    CONSTRAINT basket_item_basket_fkey FOREIGN KEY (basket_id)
+        REFERENCES basket.basket (id) MATCH SIMPLE
+        ON UPDATE NO ACTION
+        ON DELETE NO ACTION
+        NOT VALID
 );
 
-ALTER TABLE IF EXISTS basket.basket_item
-    ADD CONSTRAINT basket_item_basket_fkey FOREIGN KEY (basket_id)
-    REFERENCES basket.basket (id) MATCH SIMPLE
-    ON UPDATE NO ACTION
-    ON DELETE NO ACTION
-    NOT VALID;
+ALTER TABLE IF EXISTS basket.basket_item OWNER to egommerce;
 
-ALTER TABLE IF EXISTS basket.basket
-    OWNER to postgres;
+CREATE FUNCTION basket.update_basket_timestamp()
+    RETURNS trigger
+    LANGUAGE 'plpgsql'
+    VOLATILE
+AS $BODY$
+BEGIN
+    UPDATE basket.basket SET updated_at = NOW() WHERE id = NEW.basket_id;
+    RETURN NEW;
+END;
+$BODY$;
 
-ALTER TABLE IF EXISTS basket.basket_item
-    OWNER to postgres;
--- TODO ^^ PRIVILEGES...
+ALTER FUNCTION basket.update_basket_timestamp() OWNER TO egommerce;
+
+CREATE TRIGGER trigger_update_basket_timestamp
+    AFTER INSERT OR UPDATE OR DELETE ON basket.basket_item
+    FOR EACH ROW
+    EXECUTE FUNCTION basket.update_basket_timestamp();