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annotate tests/crud.ur @ 368:b6be16792584

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Removed handling of <,> as operators, for now
author Adam Chlipala <adamc@hcoop.net>
date Thu, 16 Oct 2008 14:17:55 -0400
parents 28d3d7210687
children 226c977faa9c
rev   line source
adamc@339 1 con colMeta = fn t_formT :: (Type * Type) => {
adamc@339 2 Nam : string,
adamc@339 3 Show : t_formT.1 -> xbody,
adamc@339 4 Widget : nm :: Name -> xml form [] [nm = t_formT.2],
adamc@341 5 WidgetPopulated : nm :: Name -> t_formT.1 -> xml form [] [nm = t_formT.2],
adamc@339 6 Parse : t_formT.2 -> t_formT.1,
adamc@339 7 Inject : sql_injectable t_formT.1
adamc@339 8 }
adamc@339 9 con colsMeta = fn cols :: {(Type * Type)} => $(Top.mapT2T colMeta cols)
adamc@326 10
adamc@362 11 fun default (t ::: Type) (sh : show t) (rd : read t) (inj : sql_injectable t)
adamc@362 12 name : colMeta (t, string) =
adamc@362 13 {Nam = name,
adamc@362 14 Show = txt _,
adamc@368 15 Widget = fn nm :: Name => (<xml><textbox{nm}/></xml>),
adamc@362 16 WidgetPopulated = fn (nm :: Name) n =>
adamc@368 17 (<xml><textbox{nm} value={show _ n}/></xml>),
adamc@368 18 Parse = readError _,e
adamc@362 19 Inject = _}
adamc@362 20
adamc@362 21 val int = default _ _ _
adamc@362 22 val float = default _ _ _
adamc@362 23 val string = default _ _ _
adamc@362 24
adamc@362 25 fun bool name = {Nam = name,
adamc@362 26 Show = txt _,
adamc@368 27 Widget = fn nm :: Name => (<xml><checkbox{nm}/></xml>),
adamc@362 28 WidgetPopulated = fn (nm :: Name) b =>
adamc@368 29 (<xml><checkbox{nm} checked={b}/></xml>),
adamc@362 30 Parse = fn x => x,
adamc@362 31 Inject = _}
adamc@362 32
adamc@325 33 functor Make(M : sig
adamc@339 34 con cols :: {(Type * Type)}
adamc@325 35 constraint [Id] ~ cols
adamc@339 36 val tab : sql_table ([Id = int] ++ mapT2T fstTT cols)
adamc@325 37
adamc@325 38 val title : string
adamc@325 39
adamc@339 40 val cols : colsMeta cols
adamc@325 41 end) = struct
adamc@325 42
adamc@325 43 open constraints M
adamc@325 44 val tab = M.tab
adamc@325 45
adamc@339 46 sequence seq
adamc@339 47
adamc@339 48 fun create (inputs : $(mapT2T sndTT M.cols)) =
adamc@367 49 id <- nextval seq;
adamc@367 50 () <- dml (insert tab
adamc@367 51 (foldT2R2 [sndTT] [colMeta]
adamc@367 52 [fn cols => $(mapT2T (fn t :: (Type * Type) =>
adamc@367 53 sql_exp [] [] [] t.1) cols)]
adamc@367 54 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@367 55 [[nm] ~ rest] =>
adamc@367 56 fn input col acc => acc with nm = sql_inject col.Inject (col.Parse input))
adamc@367 57 {} [M.cols] inputs M.cols
adamc@367 58 with #Id = (SQL {id})));
adamc@367 59 return <xml><body>
adamc@367 60 Inserted with ID {txt _ id}.
adamc@367 61 </body></xml>
adamc@339 62
adamc@342 63 fun save (id : int) (inputs : $(mapT2T sndTT M.cols)) =
adamc@367 64 () <- dml (update [mapT2T fstTT M.cols]
adamc@367 65 (foldT2R2 [sndTT] [colMeta]
adamc@367 66 [fn cols => $(mapT2T (fn t :: (Type * Type) =>
adamc@367 67 sql_exp [T = [Id = int] ++ mapT2T fstTT M.cols] [] [] t.1) cols)]
adamc@367 68 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@367 69 [[nm] ~ rest] =>
adamc@367 70 fn input col acc => acc with nm = sql_inject col.Inject (col.Parse input))
adamc@367 71 {} [M.cols] inputs M.cols)
adamc@367 72 tab (WHERE T.Id = {id}));
adamc@367 73 return <xml><body>
adamc@367 74 Saved!
adamc@367 75 </body></xml>
adamc@341 76
adamc@341 77 fun update (id : int) =
adamc@367 78 fso <- oneOrNoRows (SELECT tab.{{mapT2T fstTT M.cols}} FROM tab WHERE tab.Id = {id});
adamc@367 79 case fso : (Basis.option {Tab : $(mapT2T fstTT M.cols)}) of
adamc@367 80 None => return <xml><body>Not found!</body></xml>
adamc@367 81 | Some fs => return <xml><body><form>
adamc@367 82 {foldT2R2 [fstTT] [colMeta] [fn cols :: {(Type * Type)} => xml form [] (mapT2T sndTT cols)]
adamc@367 83 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@367 84 [[nm] ~ rest] (v : t.1) (col : colMeta t)
adamc@367 85 (acc : xml form [] (mapT2T sndTT rest)) =>
adamc@367 86 <xml>
adamc@367 87 <li> {cdata col.Nam}: {col.WidgetPopulated [nm] v}</li>
adamc@367 88 {useMore acc}
adamc@367 89 </xml>)
adamc@367 90 <xml/>
adamc@367 91 [M.cols] fs.Tab M.cols}
adamc@341 92
adamc@367 93 <submit action={save id}/>
adamc@367 94 </form></body></xml>
adamc@341 95
adamc@337 96 fun delete (id : int) =
adamc@367 97 () <- dml (DELETE FROM tab WHERE Id = {id});
adamc@367 98 return <xml><body>
adamc@368 99 The deed is done.
adamc@367 100 </body></xml>
adamc@337 101
adamc@360 102 fun confirm (id : int) = return <xml><body>
adamc@367 103 <p>Are you sure you want to delete ID #{txt _ id}?</p>
adamc@367 104
adamc@367 105 <p><a link={delete id}>I was born sure!</a></p>
adamc@360 106 </body></xml>
adamc@337 107
adamc@346 108 fun main () =
adamc@367 109 rows <- queryX (SELECT * FROM tab AS T)
adamc@367 110 (fn (fs : {T : $([Id = int] ++ mapT2T fstTT M.cols)}) => <xml>
adamc@367 111 <tr>
adamc@367 112 <td>{txt _ fs.T.Id}</td>
adamc@367 113 {foldT2RX2 [fstTT] [colMeta] [tr]
adamc@367 114 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@367 115 [[nm] ~ rest] v col => <xml>
adamc@367 116 <td>{col.Show v}</td>
adamc@367 117 </xml>)
adamc@367 118 [M.cols] (fs.T -- #Id) M.cols}
adamc@367 119 <td><a link={update fs.T.Id}>[Update]</a> <a link={confirm fs.T.Id}>[Delete]</a></td>
adamc@367 120 </tr>
adamc@367 121 </xml>);
adamc@367 122 return <xml><head>
adamc@367 123 <title>{cdata M.title}</title>
adamc@325 124
adamc@367 125 </head><body>
adamc@325 126
adamc@367 127 <h1>{cdata M.title}</h1>
adamc@325 128
adamc@367 129 <table border={1}>
adamc@367 130 <tr>
adamc@367 131 <th>ID</th>
adamc@367 132 {foldT2RX [colMeta] [tr]
adamc@367 133 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@367 134 [[nm] ~ rest] col => <xml>
adamc@367 135 <th>{cdata col.Nam}</th>
adamc@367 136 </xml>)
adamc@367 137 [M.cols] M.cols}
adamc@367 138 </tr>
adamc@367 139 {rows}
adamc@367 140 </table>
adamc@339 141
adamc@367 142 <br/>
adamc@339 143
adamc@367 144 <form>
adamc@367 145 {foldT2R [colMeta] [fn cols :: {(Type * Type)} => xml form [] (mapT2T sndTT cols)]
adamc@367 146 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@367 147 [[nm] ~ rest] (col : colMeta t) (acc : xml form [] (mapT2T sndTT rest)) => <xml>
adamc@367 148 <li> {cdata col.Nam}: {col.Widget [nm]}</li>
adamc@367 149 {useMore acc}
adamc@367 150 </xml>)
adamc@367 151 <xml/>
adamc@367 152 [M.cols] M.cols}
adamc@339 153
adamc@367 154 <submit action={create}/>
adamc@367 155 </form>
adamc@367 156 </body></xml>
adamc@325 157
adamc@325 158 end