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Start of Decision
author Adam Chlipala <adamc@hcoop.net>
date Mon, 02 Nov 2009 15:48:06 -0500
parents 53a22f46f377
children 5d9f47124c4c
rev   line source
adamc@1022 1 signature INPUT = sig
adamc@1023 2 con paper :: {Type}
adamc@1022 3 constraint [Id, Document] ~ paper
adamc@1022 4
adamc@1022 5 type userId
adamc@1022 6 val userId_inj : sql_injectable_prim userId
adamc@1022 7 table user : {Id : userId, Nam : string, Password : string, Chair : bool, OnPc : bool}
adamc@1022 8 PRIMARY KEY Id,
adamc@1022 9 CONSTRAINT Nam UNIQUE Nam
adamc@1022 10
adamc@1022 11 type paperId
adamc@1022 12 val paperId_inj : sql_injectable_prim paperId
adamc@1023 13 val paperId_show : show paperId
adamc@1023 14 val paperId_read : read paperId
adamc@1025 15 val paperId_eq : eq paperId
adamc@1023 16 table paper : ([Id = paperId, Document = blob] ++ paper)
adamc@1022 17 PRIMARY KEY Id
adamc@1022 18
adamc@1022 19 val checkLogin : transaction (option {Id : userId, Nam : string, Chair : bool, OnPc : bool})
adamc@1022 20 val getLogin : transaction {Id : userId, Nam : string, Chair : bool, OnPc : bool}
adamc@1023 21 val getPcLogin : transaction {Id : userId, Nam : string, Chair : bool}
adamc@1025 22 val checkChair : transaction unit
adamc@1023 23 val summarizePaper : ctx ::: {Unit} -> [[Body] ~ ctx] => $paper -> xml ([Body] ++ ctx) [] []
adamc@1022 24 end
adamc@1022 25
adamc@1022 26 signature OUTPUT = sig
adamc@1023 27 con paper :: {Type}
adamc@1022 28 type userId
adamc@1022 29 type paperId
adamc@1022 30
adamc@1022 31 val linksForPc : xbody
adamc@1025 32 val linksForChair : xbody
adamc@1022 33
adamc@1022 34 con yourPaperTables :: {{Type}}
adamc@1022 35 constraint [Paper] ~ yourPaperTables
adamc@1022 36 val joinYourPaper : tabs ::: {{Type}} -> paper ::: {Type}
adamc@1022 37 -> [[Paper] ~ tabs] => [[Paper] ~ yourPaperTables] => [tabs ~ yourPaperTables] => [[Id] ~ paper] =>
adamc@1027 38 userId
adamc@1027 39 -> sql_from_items ([Paper = [Id = paperId] ++ paper] ++ tabs)
adamc@1022 40 -> sql_from_items (yourPaperTables ++ [Paper = [Id = paperId] ++ paper] ++ tabs)
adamc@1022 41 end
adamc@1022 42
adamc@1004 43 open Meta
adamc@1001 44
adamc@1001 45 functor Make(M : sig
adamc@1003 46 con paper :: {(Type * Type)}
adamc@1010 47 constraint [Id, Document, Authors] ~ paper
adamc@1030 48 val paper : $(map Meta.meta paper)
adamc@1007 49 val paperFolder : folder paper
adamc@1003 50
adamc@1030 51 con paperPrivate :: {Type}
adamc@1030 52 constraint [Id, Document, Authors] ~ paperPrivate
adamc@1030 53 constraint paper ~ paperPrivate
adamc@1030 54 val paperPrivate : $(map Meta.private paperPrivate)
adamc@1030 55 val paperPrivateFolder : folder paperPrivate
adamc@1030 56
adamc@1001 57 con review :: {(Type * Type)}
adamc@1003 58 constraint [Paper, User] ~ review
adamc@1030 59 val review : $(map Meta.meta review)
adamc@1011 60 val reviewFolder : folder review
adamc@1006 61
adamc@1006 62 val submissionDeadline : time
adamc@1030 63 val summarizePaper : ctx ::: {Unit} -> [[Body] ~ ctx] => $(map fst paper ++ paperPrivate)
adamc@1030 64 -> xml ([Body] ++ ctx) [] []
adamc@1022 65
adamc@1030 66 functor Make (M : INPUT where con paper = map fst paper ++ paperPrivate)
adamc@1030 67 : OUTPUT where con paper = map fst paper ++ paperPrivate
adamc@1023 68 where con userId = M.userId
adamc@1022 69 where con paperId = M.paperId
adamc@1001 70 end) = struct
adamc@1001 71
adamc@1003 72 table user : {Id : int, Nam : string, Password : string, Chair : bool, OnPc : bool}
adamc@1003 73 PRIMARY KEY Id,
adamc@1003 74 CONSTRAINT Nam UNIQUE Nam
adamc@1003 75 sequence userId
adamc@1003 76
adamc@1030 77 con paper = [Id = int, Document = blob] ++ map fst M.paper ++ M.paperPrivate
adamc@1003 78 table paper : paper
adamc@1003 79 PRIMARY KEY Id
adamc@1003 80 sequence paperId
adamc@1003 81
adamc@1010 82 table authorship : {Paper : int, User : int}
adamc@1010 83 PRIMARY KEY (Paper, User),
adamc@1011 84 CONSTRAINT Paper FOREIGN KEY Paper REFERENCES paper(Id) ON DELETE CASCADE,
adamc@1010 85 CONSTRAINT User FOREIGN KEY User REFERENCES user(Id)
adamc@1010 86
adamc@1003 87 con review = [Paper = int, User = int] ++ map fst M.review
adamc@1003 88 table review : review
adamc@1003 89 PRIMARY KEY (Paper, User),
adamc@1003 90 CONSTRAINT Paper FOREIGN KEY Paper REFERENCES paper(Id),
adamc@1003 91 CONSTRAINT User FOREIGN KEY User REFERENCES user(Id)
adamc@1003 92 sequence reviewId
adamc@1003 93
adamc@1003 94 cookie login : {Id : int, Password : string}
adamc@1003 95
adamc@1004 96 val checkLogin =
adamc@1003 97 r <- getCookie login;
adamc@1003 98 case r of
adamc@1003 99 None => return None
adamc@1003 100 | Some r =>
adamc@1003 101 oneOrNoRows1 (SELECT user.Id, user.Nam, user.Chair, user.OnPc
adamc@1003 102 FROM user
adamc@1003 103 WHERE user.Id = {[r.Id]}
adamc@1003 104 AND user.Password = {[r.Password]})
adamc@1003 105
adamc@1010 106 val getLogin =
adamc@1010 107 ro <- checkLogin;
adamc@1010 108 case ro of
adamc@1010 109 None => error <xml>You must be logged in to do that.</xml>
adamc@1010 110 | Some r => return r
adamc@1010 111
adamc@1023 112 val getPcLogin =
adamc@1023 113 r <- getLogin;
adamc@1023 114 if r.OnPc then
adamc@1023 115 return (r -- #OnPc)
adamc@1023 116 else
adamc@1023 117 error <xml>You are not on the PC.</xml>
adamc@1023 118
adamc@1025 119 val checkChair =
adamc@1025 120 r <- getLogin;
adamc@1025 121 if r.Chair then
adamc@1025 122 return ()
adamc@1025 123 else
adamc@1025 124 error <xml>You are not a chair.</xml>
adamc@1025 125
adamc@1022 126 structure O = M.Make(struct
adamc@1022 127 val user = user
adamc@1022 128 val paper = paper
adamc@1022 129 val checkLogin = checkLogin
adamc@1022 130 val getLogin = getLogin
adamc@1023 131 val getPcLogin = getPcLogin
adamc@1025 132 val checkChair = checkChair
adamc@1023 133 val summarizePaper = @@M.summarizePaper
adamc@1022 134 end)
adamc@1022 135
adamc@1022 136 val checkOnPc =
adamc@1022 137 r <- getLogin;
adamc@1022 138 if r.OnPc then
adamc@1022 139 return ()
adamc@1022 140 else
adamc@1022 141 error <xml>You aren't authorized to do that.</xml>
adamc@1022 142
adamc@1009 143 fun checkPaper id =
adamc@1010 144 r <- getLogin;
adamc@1010 145 if r.OnPc then
adamc@1009 146 return ()
adamc@1009 147 else
adamc@1010 148 error <xml>You aren't authorized to see that paper.</xml>
adamc@1009 149
adamc@1004 150 structure Users = BulkEdit.Make(struct
adamc@1004 151 con keyName = #Id
adamc@1004 152 val visible = {Nam = string "Name",
adamc@1004 153 Chair = bool "Chair?",
adamc@1004 154 OnPc = bool "On PC?"}
adamc@1004 155
adamc@1004 156 val title = "Users"
adamc@1004 157 val isAllowed =
adamc@1004 158 me <- checkLogin;
adamc@1004 159 return (Option.isSome me)
adamc@1004 160
adamc@1004 161 val t = user
adamc@1004 162 end)
adamc@1004 163
adamc@1003 164 fun doRegister r =
adamc@1003 165 n <- oneRowE1 (SELECT COUNT( * ) AS N
adamc@1003 166 FROM user
adamc@1003 167 WHERE user.Nam = {[r.Nam]});
adamc@1003 168 if n > 0 then
adamc@1003 169 register (Some "Sorry; that username is taken.")
adamc@1003 170 else
adamc@1003 171 id <- nextval userId;
adamc@1003 172 dml (INSERT INTO user (Id, Nam, Password, Chair, OnPc)
adamc@1003 173 VALUES ({[id]}, {[r.Nam]}, {[r.Password]}, FALSE, FALSE));
adamc@1003 174 setCookie login {Id = id, Password = r.Password};
adamc@1003 175 main ()
adamc@1003 176
adamc@1003 177 and register msg = return <xml><body>
adamc@1003 178 <h1>Registering a New Account</h1>
adamc@1003 179
adamc@1003 180 {case msg of
adamc@1003 181 None => <xml/>
adamc@1003 182 | Some msg => <xml><div>{[msg]}</div></xml>}
adamc@1003 183
adamc@1003 184 <form><table>
adamc@1003 185 <tr> <th>Username:</th> <td><textbox{#Nam}/></td> </tr>
adamc@1003 186 <tr> <th>Password:</th> <td><password{#Password}/></td> </tr>
adamc@1003 187 <tr> <th><submit action={doRegister}/></th> </tr>
adamc@1003 188 </table></form>
adamc@1003 189 </body></xml>
adamc@1003 190
adamc@1006 191 and signin r =
adamc@1006 192 ro <- oneOrNoRowsE1 (SELECT user.Id AS N
adamc@1006 193 FROM user
adamc@1006 194 WHERE user.Nam = {[r.Nam]}
adamc@1006 195 AND user.Password = {[r.Password]});
adamc@1006 196 (case ro of
adamc@1006 197 None => return ()
adamc@1006 198 | Some id => setCookie login {Id = id, Password = r.Password});
adamc@1006 199 m <- main' ();
adamc@1006 200 return <xml><body>
adamc@1006 201 {case ro of
adamc@1006 202 None => <xml><div>Invalid username or password.</div></xml>
adamc@1006 203 | _ => <xml/>}
adamc@1006 204
adamc@1006 205 {m}
adamc@1006 206 </body></xml>
adamc@1006 207
adamc@1006 208 and main' () =
adamc@1004 209 me <- checkLogin;
adamc@1006 210 now <- now;
adamc@1006 211 return <xml><ul>
adamc@1003 212 {case me of
adamc@1006 213 None => <xml>
adamc@1006 214 <li><a link={register None}>Register for access</a></li>
adamc@1006 215 <li><b>Log in:</b> <form><table>
adamc@1006 216 <tr> <th>Username:</th> <td><textbox{#Nam}/></td> </tr>
adamc@1006 217 <tr> <th>Password:</th> <td><password{#Password}/></td> </tr>
adamc@1006 218 <tr> <th><submit value="Log in" action={signin}/></th> </tr>
adamc@1006 219 </table></form></li>
adamc@1006 220 </xml>
adamc@1004 221 | Some me => <xml>
adamc@1004 222 <div>Welcome, {[me.Nam]}!</div>
adamc@1004 223
adamc@1004 224 {if me.Chair then
adamc@1025 225 <xml>
adamc@1025 226 <li><a link={Users.main ()}>Manage users</a></li>
adamc@1025 227 {O.linksForChair}
adamc@1025 228 </xml>
adamc@1004 229 else
adamc@1004 230 <xml/>}
adamc@1006 231
adamc@1009 232 {if me.OnPc then
adamc@1022 233 <xml>
adamc@1022 234 <li><a link={all ()}>All papers</a></li>
adamc@1023 235 <li><a link={your ()}>Your papers</a></li>
adamc@1022 236 {O.linksForPc}
adamc@1022 237 </xml>
adamc@1009 238 else
adamc@1009 239 <xml/>}
adamc@1009 240
adamc@1006 241 {if now < M.submissionDeadline then
adamc@1007 242 <xml><li><a link={submit ()}>Submit</a></li></xml>
adamc@1006 243 else
adamc@1006 244 <xml/>}
adamc@1004 245 </xml>}
adamc@1006 246 </ul></xml>
adamc@1006 247
adamc@1006 248 and main () =
adamc@1006 249 m <- main' ();
adamc@1006 250 return <xml><body>{m}</body></xml>
adamc@1001 251
adamc@1008 252 and submit () =
adamc@1008 253 let
adamc@1009 254 fun doSubmit r =
adamc@1010 255 me <- getLogin;
adamc@1010 256 coauthors <- List.mapM (fn name => oneOrNoRowsE1 (SELECT user.Id AS N
adamc@1010 257 FROM user
adamc@1010 258 WHERE user.Nam = {[name.Nam]})) r.Authors;
adamc@1010 259 if List.exists Option.isNone coauthors then
adamc@1010 260 error <xml>At least one of those coauthor usernames isn't registered.</xml>
adamc@1010 261 else
adamc@1010 262 id <- nextval paperId;
adamc@1010 263 dml (insert paper ({Id = sql_inject id, Document = sql_inject (fileData r.Document)}
adamc@1030 264 ++ ensql M.paper (r -- #Authors -- #Document) M.paperFolder
adamc@1030 265 ++ initialize M.paperPrivate M.paperPrivateFolder));
adamc@1010 266 List.app (fn uid =>
adamc@1010 267 case uid of
adamc@1010 268 None => error <xml>Impossible empty uid!</xml>
adamc@1010 269 | Some uid => dml (INSERT INTO authorship (Paper, User)
adamc@1010 270 VALUES ({[id]}, {[uid]})))
adamc@1010 271 (Some me.Id :: coauthors);
adamc@1010 272 return <xml><body>
adamc@1010 273 Thanks for submitting!
adamc@1010 274 </body></xml>
adamc@1008 275 in
adamc@1010 276 me <- getLogin;
adamc@1015 277 numAuthors <- Dnat.zero;
adamc@1010 278
adamc@1008 279 return <xml><body>
adamc@1008 280 <h1>Submit a Paper</h1>
adamc@1008 281
adamc@1008 282 <form>
adamc@1010 283 <b>Author:</b> {[me.Nam]}<br/>
adamc@1010 284 <subforms{#Authors}>
adamc@1015 285 {Dnat.render <xml><entry><b>Author:</b> <textbox{#Nam}/><br/></entry></xml> numAuthors}
adamc@1010 286 </subforms>
adamc@1015 287 <button value="Add author" onclick={Dnat.inc numAuthors}/><br/>
adamc@1015 288 <button value="Remove author" onclick={Dnat.dec numAuthors}/><br/>
adamc@1010 289 <br/>
adamc@1010 290
adamc@1010 291 {useMore (allWidgets M.paper M.paperFolder)}
adamc@1008 292 <b>Paper:</b> <upload{#Document}/><br/>
adamc@1008 293 <submit value="Submit" action={doSubmit}/>
adamc@1008 294 </form>
adamc@1008 295 </body></xml>
adamc@1008 296 end
adamc@1007 297
adamc@1030 298 and listPapers [tabs] [[Paper] ~ tabs]
adamc@1030 299 (q : sql_query ([Paper = [Id = int] ++ map fst M.paper ++ M.paperPrivate] ++ tabs) []) =
adamc@1022 300 checkOnPc;
adamc@1022 301 ps <- queryX q
adamc@1030 302 (fn r => <xml><li><a link={one r.Paper.Id}>{M.summarizePaper (r.Paper -- #Id)}</a>
adamc@1030 303 </li></xml>);
adamc@1009 304 return <xml><body>
adamc@1009 305 <h1>All Papers</h1>
adamc@1022 306
adamc@1009 307 <ul>
adamc@1009 308 {ps}
adamc@1009 309 </ul>
adamc@1009 310 </body></xml>
adamc@1009 311
adamc@1022 312 and all () =
adamc@1022 313 checkOnPc;
adamc@1030 314 listPapers (SELECT paper.Id, paper.{{map fst M.paper ++ M.paperPrivate}} FROM paper)
adamc@1022 315
adamc@1022 316 and your () =
adamc@1022 317 me <- getLogin;
adamc@1022 318 listPapers (sql_query {Rows = sql_query1 {Distinct = False,
adamc@1027 319 From = O.joinYourPaper me.Id (sql_from_table [#Paper] paper),
adamc@1022 320 Where = (WHERE TRUE),
adamc@1022 321 GroupBy = sql_subset_all [_],
adamc@1022 322 Having = (WHERE TRUE),
adamc@1030 323 SelectFields = sql_subset [[Paper =
adamc@1030 324 ([Id = _]
adamc@1030 325 ++ map fst M.paper
adamc@1030 326 ++ M.paperPrivate, _)]
adamc@1022 327 ++ map (fn ts => ([], ts))
adamc@1022 328 O.yourPaperTables],
adamc@1022 329 SelectExps = {}},
adamc@1022 330 OrderBy = sql_order_by_Nil [_],
adamc@1022 331 Limit = sql_no_limit,
adamc@1022 332 Offset = sql_no_offset})
adamc@1022 333
adamc@1009 334 and one id =
adamc@1012 335 let
adamc@1012 336 fun newReview r =
adamc@1012 337 me <- getLogin;
adamc@1012 338 checkPaper id;
adamc@1012 339 dml (insert review ({Paper = sql_inject id, User = sql_inject me.Id}
adamc@1012 340 ++ ensql M.review r M.reviewFolder));
adamc@1012 341 one id
adamc@1009 342
adamc@1012 343 fun saveReview r =
adamc@1012 344 me <- getLogin;
adamc@1012 345 checkPaper id;
adamc@1012 346 dml (update [map fst M.review] ! (ensql M.review r M.reviewFolder)
adamc@1012 347 review (WHERE T.Paper = {[id]} AND T.User = {[me.Id]}));
adamc@1012 348 one id
adamc@1012 349 in
adamc@1012 350 me <- getLogin;
adamc@1012 351 checkPaper id;
adamc@1012 352 ro <- oneOrNoRows (SELECT paper.{{map fst M.paper}}, octet_length(paper.Document) AS N
adamc@1012 353 FROM paper
adamc@1012 354 WHERE paper.Id = {[id]});
adamc@1012 355 authors <- queryX (SELECT user.Nam
adamc@1012 356 FROM authorship
adamc@1012 357 JOIN user ON authorship.User = user.Id
adamc@1012 358 WHERE authorship.Paper = {[id]})
adamc@1012 359 (fn r => <xml><li>{[r.User.Nam]}</li></xml>);
adamc@1012 360 myReview <- oneOrNoRows1 (SELECT review.{{map fst M.review}}
adamc@1012 361 FROM review
adamc@1012 362 WHERE review.User = {[me.Id]}
adamc@1012 363 AND review.Paper = {[id]});
adamc@1029 364 otherReviews <- queryX (SELECT user.Nam, review.{{map fst M.review}}
adamc@1029 365 FROM review JOIN user ON review.User = user.Id
adamc@1029 366 WHERE review.Paper = {[id]}
adamc@1029 367 AND review.User <> {[me.Id]})
adamc@1029 368 (fn r => <xml>
adamc@1029 369 <hr/>
adamc@1029 370 <b>User:</b> {[r.User.Nam]}<br/>
adamc@1029 371 {allContent M.review r.Review M.reviewFolder}
adamc@1029 372 </xml>);
adamc@1029 373
adamc@1012 374 case ro of
adamc@1012 375 None => error <xml>Paper not found!</xml>
adamc@1012 376 | Some r => return <xml><body>
adamc@1012 377 <h1>Paper #{[id]}</h1>
adamc@1010 378
adamc@1012 379 <h3>Authors:</h3>
adamc@1012 380 <ul>
adamc@1012 381 {authors}
adamc@1012 382 </ul>
adamc@1009 383
adamc@1012 384 {allContent M.paper r.Paper M.paperFolder}<br/>
adamc@1011 385
adamc@1012 386 {if r.N = 0 then
adamc@1012 387 <xml><div>No paper uploaded yet.</div></xml>
adamc@1012 388 else
adamc@1012 389 <xml><a link={download id}>Download paper</a> ({[r.N]} bytes)</xml>}
adamc@1011 390
adamc@1012 391 <hr/>
adamc@1011 392
adamc@1012 393 {case myReview of
adamc@1012 394 None => <xml>
adamc@1012 395 <h2>Add Your Review</h2>
adamc@1012 396
adamc@1012 397 <form>
adamc@1012 398 {allWidgets M.review M.reviewFolder}
adamc@1012 399 <submit value="Add" action={newReview}/>
adamc@1012 400 </form>
adamc@1012 401 </xml>
adamc@1012 402 | Some myReview => <xml>
adamc@1012 403 <h2>Edit Your Review</h2>
adamc@1012 404
adamc@1012 405 <form>
adamc@1012 406 {allPopulated M.review myReview M.reviewFolder}
adamc@1012 407 <submit value="Save" action={saveReview}/>
adamc@1012 408 </form>
adamc@1012 409 </xml>}
adamc@1029 410
adamc@1029 411 <hr/>
adamc@1029 412 <h2>Other reviews</h2>
adamc@1029 413
adamc@1029 414 {otherReviews}
adamc@1012 415 </body></xml>
adamc@1012 416 end
adamc@1009 417
adamc@1009 418 and download id =
adamc@1009 419 checkPaper id;
adamc@1009 420 ro <- oneOrNoRows (SELECT paper.Document
adamc@1009 421 FROM paper
adamc@1009 422 WHERE paper.Id = {[id]});
adamc@1009 423 case ro of
adamc@1009 424 None => error <xml>Paper not found!</xml>
adamc@1009 425 | Some r => returnBlob r.Paper.Document (blessMime "application/pdf")
adamc@1009 426
adamc@1001 427 end
adamc@1030 428
adamc@1030 429
adamc@1030 430 functor Join(M : sig
adamc@1030 431 structure O1 : OUTPUT
adamc@1030 432
adamc@1030 433 structure O2 : OUTPUT where con paper = O1.paper
adamc@1030 434 where con userId = O1.userId
adamc@1030 435 where con paperId = O1.paperId
adamc@1030 436
adamc@1030 437 constraint O1.yourPaperTables ~ O2.yourPaperTables
adamc@1030 438 end)
adamc@1030 439 = struct
adamc@1030 440 open M
adamc@1030 441 open O1
adamc@1030 442
adamc@1030 443 val linksForPc = <xml>{O1.linksForPc}{O2.linksForPc}</xml>
adamc@1030 444 val linksForChair = <xml>{O1.linksForChair}{O2.linksForChair}</xml>
adamc@1030 445
adamc@1030 446 con yourPaperTables = O1.yourPaperTables ++ O2.yourPaperTables
adamc@1030 447 constraint [Paper] ~ yourPaperTables
adamc@1030 448
adamc@1030 449 fun joinYourPaper [tabs] [paper] [[Paper] ~ tabs] [[Paper] ~ _] [tabs ~ yourPaperTables] [[Id] ~ paper]
adamc@1030 450 uid (fi : sql_from_items ([Paper = [Id = paperId] ++ paper] ++ tabs)) =
adamc@1030 451 O2.joinYourPaper uid (O1.joinYourPaper uid fi)
adamc@1030 452 end