db_conn.base.rs 62 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
/*  medal                                                                                                            *\
 *  Copyright (C) 2020  Bundesweite Informatikwettbewerbe                                                            *
 *                                                                                                                   *
 *  This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero        *
 *  General Public License as published  by the Free Software Foundation, either version 3 of the License, or (at    *
 *  your option) any later version.                                                                                  *
 *                                                                                                                   *
 *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the       *
 *  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public      *
 *  License for more details.                                                                                        *
 *                                                                                                                   *
 *  You should have received a copy of the GNU Affero General Public License along with this program.  If not, see   *
\*  <http://www.gnu.org/licenses/>.                                                                                  */

15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
impl MedalObject<Connection> for Participation {
    fn save(&mut self, conn: &Connection) {
        let query = "INSERT INTO participation (contest, session, start_date)
                     VALUES ($1, $2, $3)";
        conn.execute(query, &[&self.contest, &self.user, &self.start]).unwrap();
    }
}

impl MedalObject<Connection> for Group {
    fn save(&mut self, conn: &Connection) {
        match self.get_id() {
            Some(_id) => unimplemented!(),
            None => {
                let query = "INSERT INTO usergroup (name, groupcode, tag, admin)
                             VALUES ($1, $2, $3, $4)";
                conn.execute(query, &[&self.name, &self.groupcode, &self.tag, &self.admin]).unwrap();
                self.set_id(conn.get_last_id().unwrap());
            }
        }
    }
}

impl MedalObject<Connection> for Task {
    fn save(&mut self, conn: &Connection) {
        let query = "SELECT id
                     FROM task
                     WHERE taskgroup = $1
                     AND location = $2";
        conn.query_map_one(query, &[&self.taskgroup, &self.location], |row| row.get(0))
            .unwrap_or(None)
            .and_then(|id| {
                self.set_id(id);
                Some(())
            })
            .unwrap_or(()); // Err means no entry yet and is expected result

        let id = match self.get_id() {
            Some(id) => {
                let query = "UPDATE task
                             SET taskgroup = $1, location = $2, stars = $3
                             WHERE id = $4";
                conn.execute(query, &[&self.taskgroup, &self.location, &self.stars, &id]).unwrap();
                id
            }
            None => {
                let query = "INSERT INTO task (taskgroup, location, stars)
                             VALUES ($1, $2, $3)";
                conn.execute(query, &[&self.taskgroup, &self.location, &self.stars]).unwrap();
                conn.get_last_id().unwrap()
            }
        };
        self.set_id(id);
    }
}

impl MedalObject<Connection> for Taskgroup {
    fn save(&mut self, conn: &Connection) {
        if let Some(first_task) = self.tasks.get(0) {
            let query = "SELECT taskgroup.id
                         FROM taskgroup
                         JOIN task
                         ON task.taskgroup = taskgroup.id
                         WHERE contest = $1
                         AND task.location = $2";
            conn.query_map_one(query, &[&self.contest, &first_task.location], |row| row.get(0))
                .unwrap_or(None)
                .and_then(|id| {
                    self.set_id(id);
                    Some(())
                })
                .unwrap_or(()); // Err means no entry yet and is expected result
        }

        let id = match self.get_id() {
            Some(id) => {
                let query = "UPDATE taskgroup
91
92
93
                             SET contest = $1, name = $2, active = $3, positionalnumber = $4
                             WHERE id = $5";
                conn.execute(query, &[&self.contest, &self.name, &self.active, &self.positionalnumber, &id]).unwrap();
94
95
96
                id
            }
            None => {
97
98
99
                let query = "INSERT INTO taskgroup (contest, name, active, positionalnumber)
                             VALUES ($1, $2, $3, $4)";
                conn.execute(query, &[&self.contest, &self.name, &self.active, &self.positionalnumber]).unwrap();
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
                conn.get_last_id().unwrap()
            }
        };
        self.set_id(id);
        for mut task in &mut self.tasks {
            task.taskgroup = id;
            task.save(conn);
        }
    }
}

impl MedalObject<Connection> for Contest {
    fn save(&mut self, conn: &Connection) {
        let query = "SELECT id
                     FROM contest
                     WHERE location = $1
                     AND filename = $2";
        conn.query_map_one(query, &[&self.location, &self.filename], |row| row.get(0))
            .unwrap_or(None)
            .and_then(|id| {
                self.set_id(id);
                Some(())
            })
            .unwrap_or(()); // Err means no entry yet and is expected result

        let id = match self.get_id() {
            Some(id) => {
                let query = "UPDATE contest
128
129
130
131
                             SET location = $2,filename = $3, name = $4, duration = $5, public = $6, start_date = $7,
                                 end_date = $8, min_grade = $9, max_grade = $10, positionalnumber = $11,
                                 requires_login = $12, secret = $13
                             WHERE id = $1";
132
                conn.execute(query,
133
134
                             &[&id,
                               &self.location,
135
136
137
138
139
140
                               &self.filename,
                               &self.name,
                               &self.duration,
                               &self.public,
                               &self.start,
                               &self.end,
141
142
                               &self.min_grade,
                               &self.max_grade,
143
                               &self.positionalnumber,
144
145
                               &self.requires_login,
                               &self.secret])
146
147
148
149
                    .unwrap();
                id
            }
            None => {
150
                let query = "INSERT INTO contest (location, filename, name, duration, public, start_date, end_date,
151
152
                                                  min_grade, max_grade, positionalnumber, requires_login, secret)
                             VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)";
153
154
155
156
157
158
159
                conn.execute(query,
                             &[&self.location,
                               &self.filename,
                               &self.name,
                               &self.duration,
                               &self.public,
                               &self.start,
160
161
                               &self.end,
                               &self.min_grade,
162
                               &self.max_grade,
163
164
165
                               &self.positionalnumber,
                               &self.requires_login,
                               &self.secret])
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
                    .unwrap();
                conn.get_last_id().unwrap()
            }
        };
        self.set_id(id);
        for mut taskgroup in &mut self.taskgroups {
            taskgroup.contest = id;
            taskgroup.save(conn);
        }
    }
}

impl MedalConnection for Connection {
    fn dbtype(&self) -> &'static str { "postgres" }

    fn migration_already_applied(&self, name: &str) -> bool {
        let create_string = "CREATE TABLE IF NOT EXISTS migrations (name TEXT PRIMARY KEY);";
        self.execute(create_string, &[]).unwrap();

        let query = "SELECT name FROM migrations WHERE name = $1";
        self.exists(query, &[&name])
    }

    fn apply_migration(&mut self, name: &str, contents: &str) {
        print!("Applying migration `{}` … ", name);

        let tx = self.transaction().unwrap();

        tx.batch_execute(&contents).unwrap();
        tx.execute("INSERT INTO migrations (name) VALUES ($1)", &[&name]).unwrap();

        tx.commit().unwrap();

        println!("OK.");
    }

    // fn get_session<T: ToSql>(&self, key: T, keyname: &str) -> Option<SessionUser> {
    fn get_session(&self, key: &str) -> Option<SessionUser> {
204
205
        let query = "SELECT id, csrf_token, last_login, last_activity, permanent_login, username, password, salt,
                            logincode, email, email_unconfirmed, email_confirmationcode, firstname, lastname, street,
206
                            zip, city, nation, grade, sex, is_admin, is_teacher, managed_by, oauth_provider, oauth_foreign_id
207
208
209
210
211
212
213
214
215
216
217
                     FROM session
                     WHERE session_token = $1";
        let session = self.query_map_one(query, &[&key], |row| SessionUser { id: row.get(0),
                                                                             session_token: Some(key.to_string()),
                                                                             csrf_token: row.get(1),
                                                                             last_login: row.get(2),
                                                                             last_activity: row.get(3),
                                                                             permanent_login: row.get(4),

                                                                             username: row.get(5),
                                                                             password: row.get(6),
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
                                                                             salt: row.get(7),
                                                                             logincode: row.get(8),
                                                                             email: row.get(9),
                                                                             email_unconfirmed: row.get(10),
                                                                             email_confirmationcode: row.get(11),

                                                                             firstname: row.get(12),
                                                                             lastname: row.get(13),
                                                                             street: row.get(14),
                                                                             zip: row.get(15),
                                                                             city: row.get(16),
                                                                             nation: row.get(17),
                                                                             grade: row.get(18),
                                                                             sex: row.get(19),

233
234
235
                                                                             is_admin: row.get(20),
                                                                             is_teacher: row.get(21),
                                                                             managed_by: row.get(22),
236

237
238
                                                                             oauth_provider: row.get(23),
                                                                             oauth_foreign_id: row.get(24) })
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
                          .ok()??;

        let duration = if session.permanent_login { Duration::days(90) } else { Duration::minutes(90) };
        let now = time::get_time();

        if let Some(last_activity) = session.last_activity {
            if now - last_activity < duration {
                let query = "UPDATE session
                             SET last_activity = $1
                             WHERE id = $2";
                self.execute(query, &[&now, &session.id]).unwrap();
                return Some(session);
            } else {
                // Session timed out
                // Should remove session token from session
                return None;
            }
        }
        // last_activity undefined
        // TODO: What should happen here?
        None
    }
    fn save_session(&self, session: SessionUser) {
262
263
264
265
266
267
268
269
270
271
272
273
        self.execute("UPDATE session
                      SET username = $1,
                          password = $2,
                          salt = $3,
                          logincode = $4,
                          firstname = $5,
                          lastname = $6,
                          street = $7,
                          zip = $8,
                          city = $9,
                          grade = $10,
                          sex = $11,
274
275
276
277
                          is_admin = $12,
                          is_teacher = $13,
                          permanent_login = $14
                      WHERE id = $15",
278
279
280
281
282
283
284
285
286
287
                     &[&session.username,
                       &session.password,
                       &session.salt,
                       &session.logincode,
                       &session.firstname,
                       &session.lastname,
                       &session.street,
                       &session.zip,
                       &session.city,
                       &session.grade,
288
                       &session.sex,
289
                       &session.is_admin,
290
                       &session.is_teacher,
291
                       &session.permanent_login,
292
293
294
295
296
297
298
                       &session.id])
            .unwrap();
    }
    fn new_session(&self, session_token: &str) -> SessionUser {
        let csrf_token = helpers::make_csrf_token();

        let now = time::get_time();
299
        let query = "INSERT INTO session (session_token, csrf_token, last_activity, permanent_login, grade, sex,
300
                                          is_teacher)
301
302
                     VALUES ($1, $2, $3, $4, $5, $6, $7)";
        self.execute(query, &[&session_token, &csrf_token, &now, &false, &0, &None::<i32>, &false]).unwrap();
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321

        let id = self.get_last_id().expect("Expected to get last row id");

        SessionUser::minimal(id, session_token.to_owned(), csrf_token)
    }
    fn get_session_or_new(&self, key: &str) -> SessionUser {
        let query = "UPDATE session
                     SET session_token = $1
                     WHERE session_token = $2";
        self.get_session(&key).ensure_alive().unwrap_or_else(|| {
                                                 // TODO: Factor this out in own function
                                                 // TODO: Should a new session key be generated every time?
                                                 self.execute(query, &[&Option::<String>::None, &key]).unwrap();
                                                 self.new_session(&key)
                                             })
    }

    fn get_user_by_id(&self, user_id: i32) -> Option<SessionUser> {
        let query = "SELECT session_token, csrf_token, last_login, last_activity, permanent_login, username, password,
322
                            salt, logincode, email, email_unconfirmed, email_confirmationcode, firstname, lastname,
323
                            street, zip, city, nation, grade, sex, is_admin, is_teacher, managed_by, oauth_provider,
324
                            oauth_foreign_id
325
326
327
328
329
330
331
332
333
334
335
                     FROM session
                     WHERE id = $1";
        self.query_map_one(query, &[&user_id], |row| SessionUser { id: user_id,
                                                                   session_token: row.get(0),
                                                                   csrf_token: row.get(1),
                                                                   last_login: row.get(2),
                                                                   last_activity: row.get(3),
                                                                   permanent_login: row.get(4),

                                                                   username: row.get(5),
                                                                   password: row.get(6),
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
                                                                   salt: row.get(7),
                                                                   logincode: row.get(8),
                                                                   email: row.get(9),
                                                                   email_unconfirmed: row.get(10),
                                                                   email_confirmationcode: row.get(11),

                                                                   firstname: row.get(12),
                                                                   lastname: row.get(13),
                                                                   street: row.get(14),
                                                                   zip: row.get(15),
                                                                   city: row.get(16),
                                                                   nation: row.get(17),
                                                                   grade: row.get(18),
                                                                   sex: row.get(19),

351
352
353
                                                                   is_admin: row.get(20),
                                                                   is_teacher: row.get(21),
                                                                   managed_by: row.get(22),
354

355
356
                                                                   oauth_provider: row.get(23),
                                                                   oauth_foreign_id: row.get(24) })
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
            .ok()?
    }

    fn get_user_and_group_by_id(&self, user_id: i32) -> Option<(SessionUser, Option<Group>)> {
        let session = self.get_user_by_id(user_id)?;

        let group_id = match session.managed_by {
            Some(id) => id,
            None => return Some((session, None)),
        };

        let query = "SELECT name, groupcode, tag, admin
                     FROM usergroup
                     WHERE id = $1";
        let res = self.query_map_one(query, &[&group_id], |row| Group { id: Some(group_id),
                                                                        name: row.get(0),
                                                                        groupcode: row.get(1),
                                                                        tag: row.get(2),
                                                                        admin: row.get(3),
                                                                        members: Vec::new() })
                      .ok()?;
        match res {
            Some(group) => Some((session, Some(group))),
            _ => Some((session, None)),
        }
    }

    //TODO: use session
    fn login(&self, _session: Option<&str>, username: &str, password: &str) -> Result<String, ()> {
        let query = "SELECT id, password, salt
                     FROM session
                     WHERE username = $1";
        self.query_map_one(query, &[&username], |row| {
                let (id, password_hash, salt): (i32, Option<String>, Option<String>) =
                    (row.get(0), row.get(1), row.get(2));

                //password_hash ist das, was in der Datenbank steht
                if helpers::verify_password(&password,
395
396
                                            &salt.ok_or_else(|| println!("salt from database empty"))?,
                                            &password_hash.ok_or_else(|| println!("password from database empty"))?)
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
                {
                    // TODO: fail more pleasantly
                    // Login okay, update session now!

                    let session_token = helpers::make_session_token();
                    let csrf_token = helpers::make_csrf_token();
                    let now = time::get_time();

                    let query = "UPDATE session
                                 SET session_token = $1, csrf_token = $2, last_login = $3, last_activity = $3
                                 WHERE id = $4";
                    self.execute(query, &[&session_token, &csrf_token, &now, &id]).unwrap();

                    Ok(session_token)
                } else {
                    Err(())
                }
            })
            .map_err(|_| ())?
            .ok_or(())?
    }

    //TODO: use session
    fn login_with_code(&self, _session: Option<&str>, logincode: &str) -> Result<String, ()> {
        let query = "SELECT id
                     FROM session
                     WHERE logincode = $1";
        self.query_map_one(query, &[&logincode], |row| {
                // Login okay, update session now!
                let id: i32 = row.get(0);

                let session_token = helpers::make_session_token();
                let csrf_token = helpers::make_csrf_token();
                let now = time::get_time();

                let query = "UPDATE session
                             SET session_token = $1, csrf_token = $2, last_login = $3, last_activity = $3
                             WHERE id = $4";
                self.execute(query, &[&session_token, &csrf_token, &now, &id]).unwrap();

                session_token
            })
            .map_err(|_| ())?
            .ok_or(())
    }

    //TODO: use session
444
445
    fn login_foreign(&self, _session: Option<&str>, provider_id: &str, foreign_id: &str, is_teacher: bool,
                     firstname: &str, lastname: &str)
446
447
448
449
450
451
452
453
                     -> Result<String, ()>
    {
        let session_token = helpers::make_session_token();
        let csrf_token = helpers::make_csrf_token();
        let now = time::get_time();

        let query = "SELECT id
                     FROM session
454
455
456
                     WHERE oauth_foreign_id = $1
                           AND oauth_provider = $2";
        match self.query_map_one(query, &[&foreign_id, &provider_id], |row| -> i32 { row.get(0) }) {
457
458
459
460
461
462
463
464
465
466
467
            Ok(Some(id)) => {
                let query = "UPDATE session
                             SET session_token = $1, csrf_token = $2, last_login = $3, last_activity = $3
                             WHERE id = $4";
                self.execute(query, &[&session_token, &csrf_token, &now, &id]).unwrap();

                Ok(session_token)
            }
            // Add!
            _ => {
                let query = "INSERT INTO session (session_token, csrf_token, last_login, last_activity,
468
                                                  permanent_login, grade, sex, is_teacher, oauth_foreign_id,
469
                                                  oauth_provider, firstname, lastname)
470
                             VALUES ($1, $2, $3, $3, $4, $5, $6, $7, $8, $9, $10, $11)";
471
472
473
474
475
                self.execute(query,
                             &[&session_token,
                               &csrf_token,
                               &now,
                               &false,
476
                               &(if is_teacher { 255 } else { 0 }),
477
                               &None::<i32>,
478
479
                               &is_teacher,
                               &foreign_id,
480
                               &provider_id,
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
                               &firstname,
                               &lastname])
                    .unwrap();

                Ok(session_token)
            }
        }
    }

    //TODO: use session
    fn create_user_with_groupcode(&self, _session: Option<&str>, groupcode: &str) -> Result<String, ()> {
        let query = "SELECT id
                     FROM usergroup
                     WHERE groupcode = $1";
        let group_id =
            self.query_map_one(query, &[&groupcode], |row| -> i32 { row.get(0) }).map_err(|_| ())?.ok_or(())?;

        // Login okay, create session!
        let session_token = helpers::make_session_token();
        let csrf_token = helpers::make_csrf_token();
        let login_code = helpers::make_login_code(); // TODO: check for collisions
        let now = time::get_time();

        let query = "INSERT INTO session (session_token, csrf_token, last_login, last_activity, permanent_login,
505
                                          logincode, grade, sex, is_teacher, managed_by)
506
                     VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)";
507
508
509
510
511
512
513
514
515
516
517
518
        self.execute(query,
                     &[&session_token,
                       &csrf_token,
                       &now,
                       &now,
                       &false,
                       &login_code,
                       &0,
                       &None::<i32>,
                       &false,
                       &group_id])
            .unwrap();
519
520
521
522
523
524
525
526
527
528
529
530

        Ok(session_token)
    }

    fn create_group_with_users(&self, mut group: Group) {
        // Generate group ID:
        group.save(self);

        for user in group.members {
            let csrf_token = helpers::make_csrf_token();
            let login_code = helpers::make_login_code(); // TODO: check for collisions

531
            let query = "INSERT INTO session (firstname, lastname, csrf_token, permanent_login, logincode, grade, sex,
532
                                              is_teacher, managed_by)
533
                         VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)";
534
535
536
537
538
539
540
            self.execute(query,
                         &[&user.firstname,
                           &user.lastname,
                           &csrf_token,
                           &false,
                           &login_code,
                           &user.grade,
541
                           &None::<i32>,
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
                           &false,
                           &group.id])
                .unwrap();
        }
    }

    fn logout(&self, session: &str) {
        let query = "UPDATE session
                     SET session_token = NULL
                     WHERE session_token = $1";
        self.execute(query, &[&session]).unwrap();
    }

    fn load_submission(&self, session: &SessionUser, task: i32, subtask: Option<&str>) -> Option<Submission> {
        match subtask {
            None => {
                let query = "SELECT id, grade, validated, nonvalidated_grade, value, date, needs_validation
                             FROM submission
                             WHERE task = $1
                             AND session = $2
                             ORDER BY id DESC
                             LIMIT 1";
                self.query_map_one(query, &[&task, &session.id], |row| Submission { id: Some(row.get(0)),
                                                                                    task: task,
                                                                                    session_user: session.id,
                                                                                    grade: row.get(1),
                                                                                    validated: row.get(2),
                                                                                    nonvalidated_grade: row.get(3),
                                                                                    subtask_identifier: None,
                                                                                    value: row.get(4),
                                                                                    date: row.get(5),
                                                                                    needs_validation: row.get(6) })
                    .ok()?
            }
            Some(subtask_id) => {
                let query = "SELECT id, grade, validated, nonvalidated_grade, value, date, needs_validation
                             FROM submission
                             WHERE task = $1
                             AND session = $2
                             AND subtask_identifier = $3
                             ORDER BY id DESC
                             LIMIT 1";
                self.query_map_one(query, &[&task, &session.id, &subtask_id], |row| {
                        Submission { id: Some(row.get(0)),
                                     task: task,
                                     session_user: session.id,
                                     grade: row.get(1),
                                     validated: row.get(2),
                                     nonvalidated_grade: row.get(3),
                                     subtask_identifier: Some(subtask_id.to_string()),
                                     value: row.get(4),
                                     date: row.get(5),
                                     needs_validation: row.get(6) }
                    })
                    .ok()?
            }
        }
    }
    fn submit_submission(&self, mut submission: Submission) {
        submission.save(self);

        let mut grade = self.get_grade_by_submission(submission.id.unwrap());
        if grade.grade.is_none() || submission.grade > grade.grade.unwrap() {
            grade.grade = Some(submission.grade);
            grade.validated = false;
            grade.save(self);
        }
    }
    fn get_grade_by_submission(&self, submission_id: i32) -> Grade {
        let query = "SELECT grade.taskgroup, grade.session, grade.grade, grade.validated
                     FROM grade
                     JOIN task ON grade.taskgroup = task.taskgroup
                     JOIN submission ON task.id = submission.task
                     AND grade.session = submission.session
                     WHERE submission.id = $1";
        self.query_map_one(query, &[&submission_id], |row| Grade { taskgroup: row.get(0),
                                                                   user: row.get(1),
                                                                   grade: row.get(2),
                                                                   validated: row.get(3) })
            .unwrap_or(None)
            .unwrap_or_else(|| {
                let query = "SELECT task.taskgroup, submission.session
                         FROM submission
                         JOIN task ON task.id = submission.task
                         WHERE submission.id = $1";
                self.query_map_one(query, &[&submission_id], |row| Grade { taskgroup: row.get(0),
                                                                           user: row.get(1),
                                                                           grade: None,
                                                                           validated: false })
                    .unwrap()
                    .unwrap() // should this unwrap?
            })
    }

    fn get_contest_groups_grades(&self, session_id: i32, contest_id: i32)
                                 -> (Vec<String>, Vec<(Group, Vec<(UserInfo, Vec<Grade>)>)>) {
        let query = "SELECT id, name
                     FROM taskgroup
                     WHERE contest = $1
641
642
                     AND active = $2
                     ORDER BY positionalnumber";
643
        let tasknames: Vec<(i32, String)> =
644
            self.query_map_many(query, &[&contest_id, &true], |row| (row.get(0), row.get(1))).unwrap();
645
646
647
648
649
650
651
652
653
654

        let mut taskindex: ::std::collections::BTreeMap<i32, usize> = ::std::collections::BTreeMap::new();

        let n_tasks = tasknames.len();
        for (index, (i, _)) in tasknames.iter().enumerate() {
            taskindex.insert(*i, index);
        }

        let query = "SELECT grade.taskgroup, grade.session, grade.grade, grade.validated, usergroup.id, usergroup.name,
                            usergroup.groupcode, usergroup.tag, student.id, student.username, student.logincode,
655
                            student.firstname, student.lastname, student.grade AS sgrade
656
657
658
659
660
661
                     FROM grade
                     JOIN taskgroup ON grade.taskgroup = taskgroup.id
                     JOIN session AS student ON grade.session = student.id
                     JOIN usergroup ON student.managed_by = usergroup.id
                     WHERE usergroup.admin = $1
                     AND taskgroup.contest = $2
662
                     AND taskgroup.active = $3
663
664
                     ORDER BY usergroup.id, sgrade, student.lastname, student.firstname, student.id,
                              taskgroup.positionalnumber";
665
        let gradeinfo =
666
            self.query_map_many(query, &[&session_id, &contest_id, &true], |row| {
667
668
669
670
671
672
673
674
675
676
677
                    (Grade { taskgroup: row.get(0), user: row.get(1), grade: row.get(2), validated: row.get(3) },
                     Group { id: Some(row.get(4)),
                             name: row.get(5),
                             groupcode: row.get(6),
                             tag: row.get(7),
                             admin: session_id,
                             members: Vec::new() },
                     UserInfo { id: row.get(8),
                                username: row.get(9),
                                logincode: row.get(10),
                                firstname: row.get(11),
678
                                lastname: row.get(12),
Robert Czechowski's avatar
Robert Czechowski committed
679
                                grade: row.get(13) })
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
                })
                .unwrap();
        let mut gradeinfo_iter = gradeinfo.iter();

        if let Some(t /*Ok((grade, mut group, mut userinfo))*/) = gradeinfo_iter.next() {
            let (grade, mut group, mut userinfo) = t.clone();

            let mut grades: Vec<Grade> = vec![Default::default(); n_tasks];
            let mut users: Vec<(UserInfo, Vec<Grade>)> = Vec::new();
            let mut groups: Vec<(Group, Vec<(UserInfo, Vec<Grade>)>)> = Vec::new();

            let index = grade.taskgroup;
            grades[taskindex[&index]] = grade;

            for ggu in gradeinfo_iter {
                let (g, gr, ui) = ggu;
                if gr.id != group.id {
                    users.push((userinfo, grades));
                    userinfo = ui.clone();
                    grades = vec![Default::default(); n_tasks];

                    groups.push((group, users));
                    group = gr.clone();
                    users = Vec::new();
                } else if ui.id != userinfo.id {
                    users.push((userinfo, grades));
                    userinfo = ui.clone();
                    grades = vec![Default::default(); n_tasks];
                }
                let index = g.taskgroup;
                grades[taskindex[&index]] = *g;
            }
            users.push((userinfo, grades));
            groups.push((group, users));

            (tasknames.iter().map(|(_, name)| name.clone()).collect(), groups)
        } else {
            (Vec::new(), Vec::new()) // should those be default filled?
        }
    }
    fn get_contest_user_grades(&self, session_token: &str, contest_id: i32) -> Vec<Grade> {
        let query = "SELECT id, name
                     FROM taskgroup
                     WHERE contest = $1
724
725
                     AND active = $2
                     ORDER BY positionalnumber";
726
        let tasknames: Vec<(i32, String)> =
727
            self.query_map_many(query, &[&contest_id, &true], |row| (row.get(0), row.get(1))).unwrap();
728
729
730
731
732
733
734
735
736
737
738
739
740
        let mut taskindex: ::std::collections::BTreeMap<i32, usize> = ::std::collections::BTreeMap::new();

        let n_tasks = tasknames.len();
        for (index, (i, _)) in tasknames.iter().enumerate() {
            taskindex.insert(*i, index);
        }

        let query = "SELECT grade.taskgroup, grade.session, grade.grade, grade.validated
                     FROM grade
                     JOIN taskgroup ON grade.taskgroup = taskgroup.id
                     JOIN session ON session.id = grade.session
                     WHERE session.session_token = $1
                     AND taskgroup.contest = $2
741
742
                     AND taskgroup.active = $3
                     ORDER BY taskgroup.positionalnumber";
743
        let gradeinfo =
744
            self.query_map_many(query, &[&session_token, &contest_id, &true], |row| Grade { taskgroup: row.get(0),
Robert Czechowski's avatar
Robert Czechowski committed
745
746
747
                                                                                            user: row.get(1),
                                                                                            grade: row.get(2),
                                                                                            validated: row.get(3) })
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
                .unwrap();
        let gradeinfo_iter = gradeinfo.iter();

        let mut grades: Vec<Grade> = vec![Default::default(); n_tasks];

        for g in gradeinfo_iter {
            let index = g.taskgroup;
            grades[taskindex[&index]] = *g;
        }

        grades
    }

    fn get_taskgroup_user_grade(&self, session_token: &str, taskgroup_id: i32) -> Grade {
        let query = "SELECT grade.taskgroup, grade.session, grade.grade, grade.validated
                     FROM grade
                     JOIN session ON session.id = grade.session
                     WHERE session.session_token = $1
                     AND grade.taskgroup = $2";
        self.query_map_one(query, &[&session_token, &taskgroup_id], |row| Grade { taskgroup: row.get(0),
                                                                                  user: row.get(1),
                                                                                  grade: row.get(2),
                                                                                  validated: row.get(3) })
            .unwrap_or(None)
            .unwrap_or_default()
    }

    fn get_contest_list(&self) -> Vec<Contest> {
776
        let query = "SELECT id, location, filename, name, duration, public, start_date, end_date, min_grade, max_grade,
777
                            positionalnumber, requires_login, secret
778
                     FROM contest
779
                     ORDER BY positionalnumber";
780
781
782
783
784
785
786
787
788
789
        self.query_map_many(query, &[], |row| Contest { id: Some(row.get(0)),
                                                        location: row.get(1),
                                                        filename: row.get(2),
                                                        name: row.get(3),
                                                        duration: row.get(4),
                                                        public: row.get(5),
                                                        start: row.get(6),
                                                        end: row.get(7),
                                                        min_grade: row.get(8),
                                                        max_grade: row.get(9),
790
                                                        positionalnumber: row.get(10),
791
792
                                                        requires_login: row.get(11),
                                                        secret: row.get(12),
793
794
795
796
797
                                                        taskgroups: Vec::new() })
            .unwrap()
    }

    fn get_contest_by_id(&self, contest_id: i32) -> Contest {
798
799
        let query = "SELECT location, filename, name, duration, public, start_date, end_date, min_grade, max_grade,
                            requires_login, secret
800
801
802
803
804
805
806
807
808
809
810
811
                     FROM contest
                     WHERE id = $1";
        self.query_map_one(query, &[&contest_id], |row| Contest { id: Some(contest_id),
                                                                  location: row.get(0),
                                                                  filename: row.get(1),
                                                                  name: row.get(2),
                                                                  duration: row.get(3),
                                                                  public: row.get(4),
                                                                  start: row.get(5),
                                                                  end: row.get(6),
                                                                  min_grade: row.get(7),
                                                                  max_grade: row.get(8),
812
                                                                  positionalnumber: None,
813
814
                                                                  requires_login: row.get(9),
                                                                  secret: row.get(10),
815
816
817
818
819
820
821
                                                                  taskgroups: Vec::new() })
            .unwrap()
            .unwrap() // TODO: Should return Option?
    }

    fn get_contest_by_id_complete(&self, contest_id: i32) -> Contest {
        let query = "SELECT contest.location, contest.filename, contest.name, contest.duration, contest.public,
822
823
824
                            contest.start_date, contest.end_date, contest.min_grade, contest.max_grade,
                            contest.requires_login, contest.secret, taskgroup.id, taskgroup.name, task.id,
                            task.location, task.stars
825
826
827
828
                     FROM contest
                     JOIN taskgroup ON contest.id = taskgroup.contest
                     JOIN task ON taskgroup.id = task.taskgroup
                     WHERE contest.id = $1
829
                     AND taskgroup.active = $2
830
831
                     ORDER BY taskgroup.positionalnumber";
        let taskgroupcontest =
832
            self.query_map_many(query, &[&contest_id, &true], |row| {
833
834
835
836
837
838
839
840
841
842
                    (Contest { id: Some(contest_id),
                               location: row.get(0),
                               filename: row.get(1),
                               name: row.get(2),
                               duration: row.get(3),
                               public: row.get(4),
                               start: row.get(5),
                               end: row.get(6),
                               min_grade: row.get(7),
                               max_grade: row.get(8),
843
                               positionalnumber: None,
844
845
                               requires_login: row.get(9),
                               secret: row.get(10),
846
                               taskgroups: Vec::new() },
847
                     Taskgroup { id: Some(row.get(11)),
848
                                 contest: contest_id,
849
                                 name: row.get(12),
850
                                 active: true,
851
852
                                 positionalnumber: None,
                                 tasks: Vec::new() },
853
                     Task { id: Some(row.get(13)), taskgroup: row.get(11), location: row.get(14), stars: row.get(15) })
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
                })
                .unwrap();
        let mut taskgroupcontest_iter = taskgroupcontest.into_iter();

        let (mut contest, mut taskgroup, task) = taskgroupcontest_iter.next().unwrap();
        taskgroup.tasks.push(task);
        for tgc in taskgroupcontest_iter {
            let (_, tg, t) = tgc;
            if tg.id != taskgroup.id {
                contest.taskgroups.push(taskgroup);
                taskgroup = tg;
            }
            taskgroup.tasks.push(t);
        }
        contest.taskgroups.push(taskgroup);
        contest
    }

    fn get_contest_by_id_partial(&self, contest_id: i32) -> Contest {
        let query = "SELECT contest.location, contest.filename, contest.name, contest.duration, contest.public,
874
875
                            contest.start_date, contest.end_date, contest.min_grade, contest.max_grade,
                            contest.requires_login, contest_secret, taskgroup.id, taskgroup.name
876
877
                     FROM contest
                     JOIN taskgroup ON contest.id = taskgroup.contest
878
879
880
                     WHERE contest.id = $1
                     AND taskgroup.active = $2";
        let taskgroupcontest = self.query_map_many(query, &[&contest_id, &true], |row| {
881
882
883
884
885
886
887
888
889
890
                                       (Contest { id: Some(contest_id),
                                                  location: row.get(0),
                                                  filename: row.get(1),
                                                  name: row.get(2),
                                                  duration: row.get(3),
                                                  public: row.get(4),
                                                  start: row.get(5),
                                                  end: row.get(6),
                                                  min_grade: row.get(7),
                                                  max_grade: row.get(8),
891
                                                  positionalnumber: None,
892
893
                                                  requires_login: row.get(9),
                                                  secret: row.get(10),
894
                                                  taskgroups: Vec::new() },
895
                                        Taskgroup { id: Some(row.get(11)),
896
                                                    contest: contest_id,
897
                                                    name: row.get(12),
898
                                                    active: true,
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
                                                    positionalnumber: None,
                                                    tasks: Vec::new() })
                                   })
                                   .unwrap();
        let mut taskgroupcontest_iter = taskgroupcontest.into_iter();

        let (mut contest, taskgroup) = taskgroupcontest_iter.next().unwrap();
        contest.taskgroups.push(taskgroup);
        for tgc in taskgroupcontest_iter {
            let (_, tg) = tgc;
            contest.taskgroups.push(tg);
        }
        contest
    }

    fn get_participation(&self, session: &str, contest_id: i32) -> Option<Participation> {
        let query = "SELECT session, start_date
                     FROM participation
                     JOIN session ON session.id = session
                     WHERE session.session_token = $1
                     AND contest = $2";
        self.query_map_one(query, &[&session, &contest_id], |row| Participation { contest: contest_id,
                                                                                  user: row.get(0),
                                                                                  start: row.get(1) })
            .ok()?
    }
    fn new_participation(&self, session: &str, contest_id: i32) -> Result<Participation, ()> {
        let query = "SELECT session, start_date
                     FROM participation
                     JOIN session ON session.id = session
                     WHERE session.session_token = $1
                     AND contest = $2";
        match self.query_map_one(query, &[&session, &contest_id], |_| {}).map_err(|_| ())? {
            Some(()) => Err(()),
            None => {
                let now = time::get_time();
                self.execute(
                             "INSERT INTO participation (contest, session, start_date)
                     SELECT $1, id, $2 FROM session WHERE session_token = $3",
                             &[&contest_id, &now, &session],
                )
                    .unwrap();

                Ok(self.get_participation(session, contest_id).unwrap()) // TODO: This errors if not logged in …
            }
        }
    }
    fn get_task_by_id(&self, task_id: i32) -> Task {
        let query = "SELECT location, stars, taskgroup
                     FROM task
                     WHERE id = $1";
        self.query_map_one(query, &[&task_id], |row| Task { id: Some(task_id),
                                                            taskgroup: row.get(2),
                                                            location: row.get(0),
                                                            stars: row.get(1) })
            .unwrap()
            .unwrap()
    }
    fn get_task_by_id_complete(&self, task_id: i32) -> (Task, Taskgroup, Contest) {
958
959
        let query = "SELECT task.location, task.stars, taskgroup.id, taskgroup.name, taskgroup.active, contest.id,
                            contest.location, contest.filename, contest.name, contest.duration, contest.public,
960
961
                            contest.start_date, contest.end_date, contest.min_grade, contest.max_grade,
                            contest.requires_login, contest.secret
962
963
964
965
966
967
968
                     FROM contest
                     JOIN taskgroup ON taskgroup.contest = contest.id
                     JOIN task ON task.taskgroup = taskgroup.id
                     WHERE task.id = $1";
        self.query_map_one(query, &[&task_id], |row| {
                (Task { id: Some(task_id), taskgroup: row.get(2), location: row.get(0), stars: row.get(1) },
                 Taskgroup { id: Some(row.get(2)),
969
                             contest: row.get(5),
970
                             name: row.get(3),
971
                             active: row.get(4),
972
973
                             positionalnumber: None,
                             tasks: Vec::new() },
974
975
976
977
978
979
980
981
982
983
                 Contest { id: Some(row.get(5)),
                           location: row.get(6),
                           filename: row.get(7),
                           name: row.get(8),
                           duration: row.get(9),
                           public: row.get(10),
                           start: row.get(11),
                           end: row.get(12),
                           min_grade: row.get(13),
                           max_grade: row.get(14),
984
                           positionalnumber: None,
985
986
                           requires_login: row.get(15),
                           secret: row.get(16),
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
                           taskgroups: Vec::new() })
            })
            .unwrap()
            .unwrap()
    }

    fn get_submission_to_validate(&self, tasklocation: &str, subtask: Option<&str>) -> i32 {
        match subtask {
            Some(st) => {
                let query = "SELECT id
                             FROM submission
                             JOIN task ON submission.task = task.id
                             WHERE task.location = $1
                             AND subtask_identifier = $2
                             AND needs_validation = 1
                             LIMIT 1";
                self.query_map_one(query, &[&tasklocation, &st], |row| row.get(0)).unwrap().unwrap()
            }
            None => {
                let query = "SELECT id
                             FROM submission
                             JOIN task ON submission.task = task.id
                             WHERE task.location = $1
                             AND needs_validation = 1
                             LIMIT 1";
                self.query_map_one(query, &[&tasklocation], |row| row.get(0)).unwrap().unwrap()
            }
        }
    }

    fn find_next_submission_to_validate(&self, userid: i32, taskgroupid: i32) {
        let query = "SELECT id, validated
                     FROM submission
                     JOIN task ON submission.task = task.id
                     WHERE task.taskgroup = $1
                     AND submission.session = $2
                     ORDER BY value DESC id DESC
                     LIMIT 1";
        let (id, validated): (i32, bool) =
            self.query_map_one(query, &[&taskgroupid, &userid], |row| (row.get(0), row.get(1))).unwrap().unwrap();
        if !validated {
            let query = "UPDATE submission
                         SET needs_validation = 1
                         WHERE id = $1";
            self.execute(query, &[&id]).unwrap();
        }
    }

    fn add_group(&self, group: &mut Group) { group.save(self); }

    fn get_groups(&self, session_id: i32) -> Vec<Group> {
        let query = "SELECT id, name, groupcode, tag
                     FROM usergroup
                     WHERE admin = $1";
        self.query_map_many(query, &[&session_id], |row| Group { id: Some(row.get(0)),
                                                                 name: row.get(1),
                                                                 groupcode: row.get(2),
                                                                 tag: row.get(3),
                                                                 admin: session_id,
                                                                 members: Vec::new() })
            .unwrap()
    }
    fn get_groups_complete(&self, _session_id: i32) -> Vec<Group> {
        unimplemented!();
    }
    fn get_group_complete(&self, group_id: i32) -> Option<Group> {
        let query = "SELECT name, groupcode, tag, admin
                     FROM usergroup
                     WHERE id  = $1";
        let mut group = self.query_map_one(query, &[&group_id], |row| Group { id: Some(group_id),
                                                                              name: row.get(0),
                                                                              groupcode: row.get(1),
                                                                              tag: row.get(2),
                                                                              admin: row.get(3),
                                                                              members: Vec::new() })
                            .unwrap()
                            .unwrap(); // TODO handle error

        let query = "SELECT id, session_token, csrf_token, last_login, last_activity, permanent_login, username,
                            password, logincode, email, email_unconfirmed, email_confirmationcode, firstname, lastname,
1067
                            street, zip, city, nation, grade, sex, is_admin, is_teacher, oauth_provider, oauth_foreign_id, salt
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
                     FROM session
                     WHERE managed_by = $1";
        group.members = self.query_map_many(query, &[&group_id], |row| SessionUser { id: row.get(0),
                                                                                     session_token: row.get(1),
                                                                                     csrf_token: row.get(2),
                                                                                     last_login: row.get(3),
                                                                                     last_activity: row.get(4),
                                                                                     permanent_login: row.get(5),

                                                                                     username: row.get(6),
                                                                                     password: row.get(7),
                                                                                     salt: row.get(22),
                                                                                     logincode: row.get(8),
                                                                                     email: row.get(9),
                                                                                     email_unconfirmed: row.get(10),
                                                                                     email_confirmationcode:
                                                                                         row.get(11),

                                                                                     firstname: row.get(12),
                                                                                     lastname: row.get(13),
                                                                                     street: row.get(14),
                                                                                     zip: row.get(15),
                                                                                     city: row.get(16),
                                                                                     nation: row.get(17),
                                                                                     grade: row.get(18),
1093
                                                                                     sex: row.get(19),
1094

1095
1096
                                                                                     is_admin: row.get(20),
                                                                                     is_teacher: row.get(21),
1097
1098
                                                                                     managed_by: Some(group_id),

1099
1100
                                                                                     oauth_provider: row.get(22),
                                                                                     oauth_foreign_id: row.get(23) })
1101
1102
1103
                            .unwrap();
        Some(group)
    }
1104
    fn get_search_users(&self,
1105
1106
                        (s_id, s_firstname, s_lastname, s_logincode, s_groupcode, s_pms_id): (Option<i32>,
                         Option<String>,
1107
1108
1109
1110
                         Option<String>,
                         Option<String>,
                         Option<String>,
                         Option<String>))
1111
                        -> Result<Vec<(i32, String, String)>, Vec<(i32, String, String)>>
1112
1113
1114
1115
1116
1117
    {
        if let Some(id) = s_id {
            let query = "SELECT id, firstname, lastname
                         FROM session
                         WHERE id = $1
                         LIMIT 30";
1118
            Ok(self.query_map_many(query, &[&id], |row| (row.get(0), row.get(1), row.get(2))).unwrap())
1119
1120
1121
1122
1123
        } else if let Some(logincode) = s_logincode {
            let query = "SELECT id, firstname, lastname
                         FROM session
                         WHERE logincode = $1
                         LIMIT 30";
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
            Ok(self.query_map_many(query, &[&logincode], |row| (row.get(0), row.get(1), row.get(2))).unwrap())
        } else if let Some(groupcode) = s_groupcode {
            let query = "SELECT id, name, tag
                         FROM usergroup
                         WHERE groupcode = $1
                         LIMIT 30";
            Err(self.query_map_many(query, &[&groupcode], |row| {
                        (row.get(0),
                         format!("Gruppe: {}", row.get::<_, String>(1)),
                         format!("(Marker: {})", row.get::<_, String>(2)))
                    })
                    .unwrap())
1136
1137
1138
1139
1140
        } else if let Some(pms_id) = s_pms_id {
            let query = "SELECT id, firstname, lastname
                         FROM session
                         WHERE oauth_foreign_id = $1
                         LIMIT 30";
1141
            Ok(self.query_map_many(query, &[&pms_id], |row| (row.get(0), row.get(1), row.get(2))).unwrap())
1142
1143
1144
1145
1146
1147
        } else if let (Some(firstname), Some(lastname)) = (s_firstname, s_lastname) {
            let query = "SELECT id, firstname, lastname
                         FROM session
                         WHERE firstname LIKE $1
                         AND lastname LIKE $2
                         LIMIT 30";
1148
1149
            Ok(self.query_map_many(query, &[&firstname, &lastname], |row| (row.get(0), row.get(1), row.get(2)))
                   .unwrap())
1150
        } else {
1151
            Ok(Vec::new())
1152
1153
        }
    }
1154

1155
1156
1157
1158
1159
1160
1161
1162
    fn get_debug_information(&self) -> String {
        let duration = Duration::minutes(60);
        let now = time::get_time();
        let then = now - duration;

        let query = "SELECT count(*)
                     FROM session
                     WHERE last_activity > $1;";
1163
        let n_asession: i64 = self.query_map_one(query, &[&then], |row| row.get(0)).unwrap().unwrap();
1164
1165
1166
1167

        let query = "SELECT count(*)
                     FROM participation
                     WHERE start_date > $1;";
1168
        let n_apart: i64 = self.query_map_one(query, &[&then], |row| row.get(0)).unwrap().unwrap();
1169
1170
1171

        let query = "SELECT count(*)
                     FROM session;";
1172
        let n_session: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1173

1174
1175
        let query = "SELECT count(*)
                     FROM session
1176
1177
                     WHERE oauth_foreign_id IS NOT NULL OR logincode IS NOT NULL;";
        let n_user: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1178
1179
1180

        let query = "SELECT count(*)
                     FROM session
1181
1182
                     WHERE oauth_foreign_id IS NOT NULL;";
        let n_pmsuser: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1183
1184
1185
1186

        let query = "SELECT count(*)
                     FROM session
                     WHERE is_teacher = $1;";
1187
        let n_teacher: i64 = self.query_map_one(query, &[&true], |row| row.get(0)).unwrap().unwrap();
1188
1189
1190

        let query = "SELECT count(*)
                     FROM participation;";
1191
        let n_part: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1192
1193
1194

        let query = "SELECT count(*)
                     FROM submission;";
1195
        let n_sub: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1196

1197
        let query = "SELECT contest, count(*)
1198
1199
1200
                     FROM participation
                     GROUP BY contest
                     ORDER BY contest DESC;";
1201
1202
        let n_participations_by_id: Vec<(i32, i64)> =
            self.query_map_many(query, &[], |row| (row.get(0), row.get(1))).unwrap();
1203

1204
1205
        format!(
                "{{
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
  \"timestamp\": {},
  \"active_sessions\": {},
  \"active_participations\": {},
  \"sessions\": {},
  \"users\": {},
  \"pms_users\": {},
  \"teachers\": {},
  \"participations\": {},
  \"submissions\": {},
  \"participations_by_contest_id\": {{
    {}
  }}
1218
1219
}}
",
Robert Czechowski's avatar
Robert Czechowski committed
1220
1221
1222
1223
1224
1225
1226
1227
1228
                now.sec,
                n_asession,
                n_apart,
                n_session,
                n_user,
                n_pmsuser,
                n_teacher,
                n_part,
                n_sub,
1229
                n_participations_by_id.iter()
Robert Czechowski's avatar
Robert Czechowski committed
1230
1231
                                      .map(|(x, y)| -> String { format!("\"{}\": {}", x, y) })
                                      .collect::<Vec<String>>()
1232
                                      .join(",\n    ")
1233
        )
1234
1235
    }

1236
    fn reset_all_contest_visibilities(&self) { self.execute("UPDATE contest SET public = $1", &[&false]).unwrap(); }
1237
    fn reset_all_taskgroup_visibilities(&self) { self.execute("UPDATE taskgroup SET active = $1", &[&false]).unwrap(); }
1238
}