Ur/Web: tests/subforms.ur annotate

Allow subqueries to reference aggregate-only columns of free tables; treat non-COUNT aggregate functions as possibly returning NULL

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 15 Jan 2011 14:53:13 -0500
parents	16b34dc2e29c
children

rev	line source
adamc@758	1 fun handler' ls =
adamc@758	2 case ls of
adamc@758	3 Nil => <xml/>
adamc@761	4 \| Cons (r, ls) => <xml><li>{[r.Nam]}, {[r.A]}, {[r.B]}, {[r.Sub]}</li>{handler' ls}</xml>
adamc@758	5
adamc@758	6 fun handler r = return <xml><body>
adamc@759	7 {[r.A]}<br/>
adamc@759	8 {handler' r.Sub}
adamc@759	9 {[r.C]}
adamc@758	10 </body></xml>
adamc@758	11
adamc@758	12 fun main () = return <xml><body>
adamc@758	13 <form>
adamc@758	14 <textbox{#A}/><br/>
adamc@758	15 <subforms{#Sub}>
adamc@758	16 <entry>
adamc@761	17 <hidden{#Nam} value="Sparky"/>
adamc@758	18 <textbox{#A}/><br/>
adamc@758	19 <textbox{#B}/><br/>
adamc@758	20 <textbox{#Sub}/><br/>
adamc@758	21 </entry>
adamc@759	22
adamc@759	23 <entry>
adamc@761	24 <hidden{#Nam} value="Snarky"/>
adamc@759	25 <textbox{#A}/><br/>
adamc@759	26 <textbox{#B}/><br/>
adamc@759	27 <textbox{#Sub}/><br/>
adamc@759	28 </entry>
adamc@758	29 </subforms>
adamc@758	30 <textbox{#C}/><br/>
adamc@758	31 <submit action={handler}/>
adamc@758	32 </form>
adamc@758	33 </body></xml>

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