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comparison tests/crud.ur @ 329:eec65c11d3e2

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foldTR2
author Adam Chlipala <adamc@hcoop.net>
date Sat, 13 Sep 2008 10:30:45 -0400
parents 3a57f3b3a3f8
children 02d15d81ae9b
comparison
equal deleted inserted replaced
328:58f1260f293f 329:eec65c11d3e2
1 con colMeta = fn cols :: {Type} => $(Top.mapTT (fn t => {Show : t -> xbody}) cols) 1 con colMeta' = fn t :: Type => {Show : t -> xbody}
2 con colMeta = fn cols :: {Type} => $(Top.mapTT colMeta' cols)
2 3
3 functor Make(M : sig 4 functor Make(M : sig
4 con cols :: {Type} 5 con cols :: {Type}
5 constraint [Id] ~ cols 6 constraint [Id] ~ cols
6 val tab : sql_table ([Id = int] ++ cols) 7 val tab : sql_table ([Id = int] ++ cols)
13 open constraints M 14 open constraints M
14 val tab = M.tab 15 val tab = M.tab
15 16
16 fun list () = 17 fun list () =
17 rows <- query (SELECT * FROM tab AS T) 18 rows <- query (SELECT * FROM tab AS T)
18 (fn fs acc => return <body> 19 (fn (fs : {T : $([Id = int] ++ M.cols)}) acc => return <body>
19 {acc} 20 {acc}
20 <tr> 21 <tr>
21 <td>{txt _ fs.T.Id}</td> 22 <td>{txt _ fs.T.Id}</td>
22 {fold [fn cols :: {Type} => $cols -> colMeta cols -> xtr] 23 {foldTR2 [idT] [colMeta'] [fn _ => xtr]
23 (fn (nm :: Name) (t :: Type) (rest :: {Type}) acc => 24 (fn (nm :: Name) (t :: Type) (rest :: {Type}) =>
24 [[nm] ~ rest] => 25 [[nm] ~ rest] =>
25 fn r cols => 26 fn v funcs acc =>
26 <tr> 27 <tr>
27 <td>{cols.nm.Show r.nm}</td> 28 <td>{funcs.Show v}</td>
28 {acc (r -- nm) (cols -- nm)} 29 {acc}
29 </tr>) 30 </tr>)
30 (fn _ _ => <tr></tr>) 31 <tr></tr>
31 [M.cols] (fs.T -- #Id) M.cols} 32 [M.cols] (fs.T -- #Id) M.cols}
32 </tr> 33 </tr>
33 </body>) <body></body>; 34 </body>) <body></body>;
34 return <html><head> 35 return <html><head>
35 <title>List</title> 36 <title>List</title>