Ur/Web: tests/policy.ur annotate

WHERE-dependent checking

author	Adam Chlipala <adamc@hcoop.net>
date	Sun, 04 Apr 2010 17:18:41 -0400
parents	7af5e2af64f4
children	772760df4c4c

rev	line source
adamc@1204	1 type fruit = int
adamc@1204	2 table fruit : { Id : fruit, Nam : string, Weight : float, Secret : string }
adamc@1204	3 PRIMARY KEY Id,
adamc@1204	4 CONSTRAINT Nam UNIQUE Nam
adamc@1204	5
adamc@1204	6 type order = int
adamc@1204	7 table order : { Id : order, Fruit : fruit, Qty : int, Code : int }
adamc@1204	8 PRIMARY KEY Id,
adamc@1204	9 CONSTRAINT Fruit FOREIGN KEY Fruit REFERENCES fruit(Id)
adamc@1199	10
adamc@1205	11 policy query_policy (SELECT fruit.Id, fruit.Nam, fruit.Weight
adamc@1205	12 FROM fruit)
adamc@1205	13 policy query_policy (SELECT order.Id, order.Fruit, order.Qty
adamc@1205	14 FROM order, fruit
adamc@1205	15 WHERE order.Fruit = fruit.Id)
adamc@1200	16
adamc@1200	17 fun main () =
adamc@1204	18 x1 <- queryX (SELECT fruit.Id, fruit.Nam
adamc@1204	19 FROM fruit)
adamc@1204	20 (fn x => <xml><li>{[x.Fruit.Id]}: {[x.Fruit.Nam]}</li></xml>);
adamc@1204	21
adamc@1204	22 x2 <- queryX (SELECT fruit.Nam, order.Qty
adamc@1204	23 FROM fruit, order
adamc@1205	24 WHERE fruit.Id = order.Fruit)
adamc@1204	25 (fn x => <xml><li>{[x.Fruit.Nam]}: {[x.Order.Qty]}</li></xml>);
adamc@1200	26
adamc@1200	27 return <xml><body>
adamc@1204	28 <ul>{x1}</ul>
adamc@1204	29 <ul>{x2}</ul>
adamc@1200	30 </body></xml>

Mercurial > urweb