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comparison tests/crud.ur @ 339:075b36dbb1a4

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Crud supports INSERT
author Adam Chlipala <adamc@hcoop.net>
date Sun, 14 Sep 2008 15:10:04 -0400
parents 18d5affa790d
children 389399d65331
comparison
equal deleted inserted replaced
338:e976b187d73a 339:075b36dbb1a4
1 con colMeta' = fn t :: Type => {Nam : string, Show : t -> xbody} 1 con colMeta = fn t_formT :: (Type * Type) => {
2 con colMeta = fn cols :: {Type} => $(Top.mapTT colMeta' cols) 2 Nam : string,
3 Show : t_formT.1 -> xbody,
4 Widget : nm :: Name -> xml form [] [nm = t_formT.2],
5 Parse : t_formT.2 -> t_formT.1,
6 Inject : sql_injectable t_formT.1
7 }
8 con colsMeta = fn cols :: {(Type * Type)} => $(Top.mapT2T colMeta cols)
3 9
4 functor Make(M : sig 10 functor Make(M : sig
5 con cols :: {Type} 11 con cols :: {(Type * Type)}
6 constraint [Id] ~ cols 12 constraint [Id] ~ cols
7 val tab : sql_table ([Id = int] ++ cols) 13 val tab : sql_table ([Id = int] ++ mapT2T fstTT cols)
8 14
9 val title : string 15 val title : string
10 16
11 val cols : colMeta cols 17 val cols : colsMeta cols
12 end) = struct 18 end) = struct
13 19
14 open constraints M 20 open constraints M
15 val tab = M.tab 21 val tab = M.tab
22
23 sequence seq
24
25 fun create (inputs : $(mapT2T sndTT M.cols)) =
26 id <- nextval seq;
27 () <- dml (insert tab (foldT2R2 [sndTT] [colMeta]
28 [fn cols => $(mapT2T (fn t :: (Type * Type) =>
29 sql_exp [T = [Id = int] ++ mapT2T fstTT M.cols] [] [] t.1) cols)]
30 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) =>
31 [[nm] ~ rest] =>
32 fn input col acc => acc with nm = sql_inject col.Inject (col.Parse input))
33 {} [M.cols] inputs M.cols
34 with #Id = (SQL {id})));
35 return <html><body>
36 Inserted with ID {txt _ id}.
37 </body></html>
16 38
17 fun delete (id : int) = 39 fun delete (id : int) =
18 () <- dml (DELETE FROM tab WHERE Id = {id}); 40 () <- dml (DELETE FROM tab WHERE Id = {id});
19 return <html><body> 41 return <html><body>
20 The deed is done. 42 The deed is done.
26 <p><a link={delete id}>I was born sure!</a></p> 48 <p><a link={delete id}>I was born sure!</a></p>
27 </body></html> 49 </body></html>
28 50
29 fun main () : transaction page = 51 fun main () : transaction page =
30 rows <- queryX (SELECT * FROM tab AS T) 52 rows <- queryX (SELECT * FROM tab AS T)
31 (fn (fs : {T : $([Id = int] ++ M.cols)}) => <body> 53 (fn (fs : {T : $([Id = int] ++ mapT2T fstTT M.cols)}) => <body>
32 <tr> 54 <tr>
33 <td>{txt _ fs.T.Id}</td> 55 <td>{txt _ fs.T.Id}</td>
34 {foldTRX2 [idT] [colMeta'] [tr] 56 {foldT2RX2 [fstTT] [colMeta] [tr]
35 (fn (nm :: Name) (t :: Type) (rest :: {Type}) => 57 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) =>
36 [[nm] ~ rest] => 58 [[nm] ~ rest] =>
37 fn v col => <tr> 59 fn v col => <tr>
38 <td>{col.Show v}</td> 60 <td>{col.Show v}</td>
39 </tr>) 61 </tr>)
40 [M.cols] (fs.T -- #Id) M.cols} 62 [M.cols] (fs.T -- #Id) M.cols}
49 <h1>{cdata M.title}</h1> 71 <h1>{cdata M.title}</h1>
50 72
51 <table border={1}> 73 <table border={1}>
52 <tr> 74 <tr>
53 <th>ID</th> 75 <th>ID</th>
54 {foldTRX [colMeta'] [tr] 76 {foldT2RX [colMeta] [tr]
55 (fn (nm :: Name) (t :: Type) (rest :: {Type}) => 77 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) =>
56 [[nm] ~ rest] => 78 [[nm] ~ rest] =>
57 fn col => <tr> 79 fn col => <tr>
58 <th>{cdata col.Nam}</th> 80 <th>{cdata col.Nam}</th>
59 </tr>) 81 </tr>)
60 [M.cols] M.cols} 82 [M.cols] M.cols}
61 </tr> 83 </tr>
62 {rows} 84 {rows}
63 </table> 85 </table>
86
87 <br/>
88
89 <lform>
90 {foldT2R [colMeta] [fn cols :: {(Type * Type)} => xml form [] (mapT2T sndTT cols)]
91 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) =>
92 [[nm] ~ rest] =>
93 fn (col : colMeta t) (acc : xml form [] (mapT2T sndTT rest)) => <lform>
94 <li> {cdata col.Nam}: {col.Widget [nm]}</li>
95 {useMore acc}
96 </lform>)
97 <lform></lform>
98 [M.cols] M.cols}
99
100 <submit action={create}/>
101 </lform>
64 </body></html> 102 </body></html>
65 103
66 end 104 end