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open Dbgrid
table t1 : {Id : int, A : string}
PRIMARY KEY Id
sequence s
table t : {Id : int, A : int, B : string, C : bool, D : int}
PRIMARY KEY Id,
CONSTRAINT Foreign FOREIGN KEY (D) REFERENCES t1(Id) ON DELETE CASCADE
fun page (n, s) = return <xml>A = {[n]}, B = {[s]}</xml>
open Make(struct
val tab = t
con key = [Id = _]
val raw = {Id = {New = nextval s,
Inj = _},
A = {New = return 0,
Inj = _},
B = {New = return "",
Inj = _},
C = {New = return False,
Inj = _},
D = {New = return 0,
Inj = _}}
structure F = Direct.Foreign(struct
con nm = #Id
val tab = t1
fun render r = r.A
end)
val cols = {Id = Direct.readOnly [#Id] ! "Id" Direct.int,
A = Direct.editable [#A] ! "A" Direct.int,
B = Direct.editable [#B] ! "B" Direct.string,
C = Direct.editable [#C] ! "C" Direct.bool,
D = Direct.editable [#D] ! "D" F.meta,
DA = computed "2A" (fn r => 2 * r.A),
Link = computedHtml "Link" (fn r => <xml><a link={page (r.A, r.B)}>Go</a></xml>)}
end)
fun main () =
grid <- grid;
return <xml>
<head>
<link rel="stylesheet" type="text/css" href="/defun/grid.css"/>
</head>
<body onload={sync grid}>
{render grid}
</body>
</xml>
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