-- User Basket (Product Link)



SELECT CONCAT('WARNING: Table ', TABLE_NAME, ' already exists.') AS msg_warning FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Shop_User_Basket';

CREATE TABLE IF NOT EXISTS Shop_User_Basket (
	id_item INTEGER NOT NULL PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
	id_user INTEGER,
	CONSTRAINT FK_Shop_User_Basket_id_user
		FOREIGN KEY (id_user)
		REFERENCES Shop_User(id_user)
		ON UPDATE RESTRICT,
	id_product INTEGER NOT NULL,
	CONSTRAINT FK_Shop_User_Basket_id_product
		FOREIGN KEY (id_product)
		REFERENCES Shop_Product(id_product)
		ON UPDATE RESTRICT,
	id_permutation INTEGER,
	CONSTRAINT FK_Shop_User_Basket_id_permutation
		FOREIGN KEY (id_permutation)
		REFERENCES Shop_Product_Permutation(id_permutation)
		ON UPDATE RESTRICT,
	quantity INTEGER NOT NULL,
	active BOOLEAN NOT NULL DEFAULT TRUE,
	created_on TIMESTAMP,
	created_by INT,
	id_change_set_user INTEGER,
	CONSTRAINT FK_Shop_User_Basket_id_change_set_user
		FOREIGN KEY (id_change_set_user)
		REFERENCES Shop_User_Change_Set(id_change_set)
        /*
	id_change_set_product INTEGER,
	CONSTRAINT FK_Shop_User_Basket_id_change_set_product
		FOREIGN KEY (id_change_set_product)
		REFERENCES Shop_Product_Change_Set(id_change_set)
        */
);