db_conn_sqlite_new.rs 58.7 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *                                                                             *
 *        WARNING                                                              *
 *                                                                             *
 * This file is auto generated by ./generate_connectors.sh                     *
 *                                                                             *
 * Do not edit this file directly. Instead edit one of the corresponding       *
 * .header.rs oder .base.rs files.                                             *
 *                                                                             *
 *                                                                             *
 *                                                                             *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

14
#![cfg(feature = "rusqlite")]
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

extern crate rusqlite;

use rusqlite::Connection;
use time;
use time::Duration;

use db_conn::{MedalConnection, MedalObject};
use db_objects::*;
use helpers;

trait Queryable {
    fn query_map_one<T, F>(&self, sql: &str, params: &[&dyn rusqlite::types::ToSql], f: F)
                           -> rusqlite::Result<Option<T>>
        where F: FnOnce(&rusqlite::Row) -> T;
    fn query_map_many<T, F>(&self, sql: &str, params: &[&dyn rusqlite::types::ToSql], f: F) -> rusqlite::Result<Vec<T>>
        where F: FnMut(&rusqlite::Row) -> T;
    fn exists(&self, sql: &str, params: &[&dyn rusqlite::types::ToSql]) -> bool;
    fn get_last_id(&self) -> Option<i32>;
}

impl Queryable for Connection {
    fn query_map_one<T, F>(&self, sql: &str, params: &[&dyn rusqlite::types::ToSql], f: F)
                           -> rusqlite::Result<Option<T>>
        where F: FnOnce(&rusqlite::Row) -> T {
        let mut stmt = self.prepare(sql)?;
        let mut rows = stmt.query(params)?;
        match rows.next() {
            None => Ok(None),
            Some(Err(e)) => Err(e),
            Some(Ok(row)) => Ok(Some(f(&row))),
        }
    }

    fn query_map_many<T, F>(&self, sql: &str, params: &[&dyn rusqlite::types::ToSql], f: F) -> rusqlite::Result<Vec<T>>
        where F: FnMut(&rusqlite::Row) -> T {
        let mut stmt = self.prepare(sql)?;
        let rows = stmt.query_map(params, f)?;
        Ok(rows.map(|x| x.unwrap()).collect())
    }

    fn exists(&self, sql: &str, params: &[&dyn rusqlite::types::ToSql]) -> bool {
        let mut stmt = self.prepare(sql).unwrap();
        stmt.exists(params).unwrap()
    }

    fn get_last_id(&self) -> Option<i32> { self.query_row("SELECT last_insert_rowid()", &[], |row| row.get(0)).ok() }
}

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
91
92
impl MedalObject<Connection> for Submission {
    fn save(&mut self, conn: &Connection) {
        match self.get_id() {
            Some(_id) => unimplemented!(),
            None => {
                let query = "INSERT INTO submission (task, session, grade, validated, nonvalidated_grade,
                                                     subtask_identifier, value, date, needs_validation)
                             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)";
                conn.execute(query,
                             &[&self.task,
                               &self.session_user,
                               &self.grade,
                               &self.validated,
                               &self.nonvalidated_grade,
                               &self.subtask_identifier,
                               &self.value,
                               &self.date,
                               &self.needs_validation])
                    .unwrap();
                self.set_id(conn.get_last_id().unwrap());
            }
        }
    }
}

impl MedalObject<Connection> for Grade {
    fn save(&mut self, conn: &Connection) {
        let query = "INSERT OR REPLACE INTO grade (taskgroup, session, grade, validated)
                     VALUES (?1, ?2, ?3, ?4)";
93

94
95
96
97
98
99
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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
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
204
205
206
207
208
209
        conn.execute(query, &[&self.taskgroup, &self.user, &self.grade, &self.validated]).unwrap();
    }
}
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
                             SET contest = ?1, name = ?2, positionalnumber = ?3
                             WHERE id = ?4";
                conn.execute(query, &[&self.contest, &self.name, &self.positionalnumber, &id]).unwrap();
                id
            }
            None => {
                let query = "INSERT INTO taskgroup (contest, name, positionalnumber)
                             VALUES (?1, ?2, ?3)";
                conn.execute(query, &[&self.contest, &self.name, &self.positionalnumber]).unwrap();
                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
210
                             SET location = ?1,filename = ?2, name = ?3, duration = ?4, public = ?5, start_date = ?6,
211
212
                                 end_date = ?7, min_grade = ?8, max_grade = ?9, positionalnumber = ?10
                             WHERE id = ?11";
213
214
215
216
217
218
219
220
                conn.execute(query,
                             &[&self.location,
                               &self.filename,
                               &self.name,
                               &self.duration,
                               &self.public,
                               &self.start,
                               &self.end,
221
222
                               &self.min_grade,
                               &self.max_grade,
223
                               &self.positionalnumber,
224
225
226
227
228
                               &id])
                    .unwrap();
                id
            }
            None => {
229
                let query = "INSERT INTO contest (location, filename, name, duration, public, start_date, end_date,
230
231
                                                  min_grade, max_grade, positionalnumber)
                             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10)";
232
233
234
235
236
237
238
                conn.execute(query,
                             &[&self.location,
                               &self.filename,
                               &self.name,
                               &self.duration,
                               &self.public,
                               &self.start,
239
240
                               &self.end,
                               &self.min_grade,
241
242
                               &self.max_grade,
                               &self.positionalnumber])
243
244
245
246
247
248
249
250
251
252
253
254
                    .unwrap();
                conn.get_last_id().unwrap()
            }
        };
        self.set_id(id);
        for mut taskgroup in &mut self.taskgroups {
            taskgroup.contest = id;
            taskgroup.save(conn);
        }
    }
}

255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
impl MedalConnection for Connection {
    fn dbtype(&self) -> &'static str { "sqlite_v2" }

    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.execute_batch(&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> {
        let query = "SELECT id, csrf_token, last_login, last_activity, permanent_login, username, password, logincode,
                            email, email_unconfirmed, email_confirmationcode, firstname, lastname, street, zip, city,
283
                            nation, grade, sex, is_teacher, managed_by, oauth_provider, oauth_foreign_id, salt
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
                     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),
                                                                             salt: row.get(22),
                                                                             logincode: row.get(7),
                                                                             email: row.get(8),
                                                                             email_unconfirmed: row.get(9),
                                                                             email_confirmationcode: row.get(10),

                                                                             firstname: row.get(11),
                                                                             lastname: row.get(12),
                                                                             street: row.get(13),
                                                                             zip: row.get(14),
                                                                             city: row.get(15),
                                                                             nation: row.get(16),
                                                                             grade: row.get(17),
308
                                                                             sex: row.get(18),
309

310
311
                                                                             is_teacher: row.get(19),
                                                                             managed_by: row.get(20),
312

313
314
                                                                             oauth_provider: row.get(21),
                                                                             oauth_foreign_id: row.get(22) })
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
                          .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) {
338
339
340
341
342
343
344
345
346
347
348
349
350
351
        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,
                          is_teacher = ?12
                      WHERE id = ?13",
352
353
354
355
356
357
358
359
360
361
                     &[&session.username,
                       &session.password,
                       &session.salt,
                       &session.logincode,
                       &session.firstname,
                       &session.lastname,
                       &session.street,
                       &session.zip,
                       &session.city,
                       &session.grade,
362
                       &session.sex,
363
364
365
366
367
368
369
370
                       &session.is_teacher,
                       &session.id])
            .unwrap();
    }
    fn new_session(&self, session_token: &str) -> SessionUser {
        let csrf_token = helpers::make_csrf_token();

        let now = time::get_time();
371
        let query = "INSERT INTO session (session_token, csrf_token, last_activity, permanent_login, grade, sex,
372
                                          is_teacher)
373
374
                     VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7)";
        self.execute(query, &[&session_token, &csrf_token, &now, &false, &0, &None::<i32>, &false]).unwrap();
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394

        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,
                            logincode, email, email_unconfirmed, email_confirmationcode, firstname, lastname, street,
395
396
                            zip, city, nation, grade, sex, is_teacher, managed_by, oauth_provider, oauth_foreign_id,
                            salt
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
                     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),
                                                                   salt: row.get(22),
                                                                   logincode: row.get(7),
                                                                   email: row.get(8),
                                                                   email_unconfirmed: row.get(9),
                                                                   email_confirmationcode: row.get(10),

                                                                   firstname: row.get(11),
                                                                   lastname: row.get(12),
                                                                   street: row.get(13),
                                                                   zip: row.get(14),
                                                                   city: row.get(15),
                                                                   nation: row.get(16),
                                                                   grade: row.get(17),
421
                                                                   sex: row.get(18),
422

423
424
                                                                   is_teacher: row.get(19),
                                                                   managed_by: row.get(20),
425

426
427
                                                                   oauth_provider: row.get(21),
                                                                   oauth_foreign_id: row.get(22) })
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
            .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,
                                            &salt.expect("salt from database empty"),
                                            &password_hash.expect("password from database empty"))
                {
                    // TODO: fail more pleasantly
                    // Login okay, update session now!

                    let session_token = helpers::make_session_token();
473
                    let csrf_token = helpers::make_csrf_token();
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
                    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, ()> {
492
493
494
        let query = "SELECT id
                     FROM session
                     WHERE logincode = ?1";
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
        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
515
516
    fn login_foreign(&self, _session: Option<&str>, provider_id: &str, foreign_id: &str, is_teacher: bool,
                     firstname: &str, lastname: &str)
517
518
519
520
521
522
523
524
                     -> 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
525
526
527
                     WHERE oauth_foreign_id = ?1
                           AND oauth_provider = ?2";
        match self.query_map_one(query, &[&foreign_id, &provider_id], |row| -> i32 { row.get(0) }) {
528
529
530
531
532
533
534
535
536
537
538
            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,
539
                                                  permanent_login, grade, sex, is_teacher, oauth_foreign_id,
540
                                                  oauth_provider, firstname, lastname)
541
                             VALUES (?1, ?2, ?3, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)";
542
543
544
545
546
                self.execute(query,
                             &[&session_token,
                               &csrf_token,
                               &now,
                               &false,
547
                               &(if is_teacher { 255 } else { 0 }),
548
                               &None::<i32>,
549
550
                               &is_teacher,
                               &foreign_id,
551
                               &provider_id,
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
                               &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,
576
577
578
579
580
581
582
583
584
585
586
587
588
589
                                          logincode, grade, sex, is_teacher, managed_by)
                     VALUES (?1, ?2, ?3, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10)";
        self.execute(query,
                     &[&session_token,
                       &csrf_token,
                       &now,
                       &now,
                       &false,
                       &login_code,
                       &0,
                       &None::<i32>,
                       &false,
                       &group_id])
            .unwrap();
590
591
592
593
594
595
596
597
598
599
600
601

        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

602
            let query = "INSERT INTO session (firstname, lastname, csrf_token, permanent_login, logincode, grade, sex,
603
                                              is_teacher, managed_by)
604
                         VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)";
605
606
607
608
609
610
611
            self.execute(query,
                         &[&user.firstname,
                           &user.lastname,
                           &csrf_token,
                           &false,
                           &login_code,
                           &user.grade,
612
                           &None::<i32>,
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
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
                           &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";
688
689
690
691
692
693
694
        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
695
696
697
                         FROM submission
                         JOIN task ON task.id = submission.task
                         WHERE submission.id = ?1";
698
699
700
701
702
703
704
                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?
            })
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
    }

    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
                     ORDER BY id ASC";
        let tasknames: Vec<(i32, String)> =
            self.query_map_many(query, &[&contest_id], |row| (row.get(0), row.get(1))).unwrap();

        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);
        }

723
724
725
726
727
728
729
730
731
732
733
734
        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,
                            student.firstname, student.lastname
                     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
                     ORDER BY usergroup.id, student.id, taskgroup.id ASC";
        let gradeinfo =
            self.query_map_many(query, &[&session_id, &contest_id], |row| {
735
736
737
738
739
740
741
742
743
744
745
746
747
748
                    (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),
                                lastname: row.get(12) })
                })
                .unwrap();
749
        let mut gradeinfo_iter = gradeinfo.iter();
750
751

        if let Some(t /*Ok((grade, mut group, mut userinfo))*/) = gradeinfo_iter.next() {
752
            let (grade, mut group, mut userinfo) = t.clone();
753
754
755
756
757
758

            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;
759
            grades[taskindex[&index]] = grade;
760
761

            for ggu in gradeinfo_iter {
762
763
                let (g, gr, ui) = ggu;
                if gr.id != group.id {
764
765
                    users.push((userinfo, grades));
                    userinfo = ui.clone();
766
767
                    grades = vec![Default::default(); n_tasks];

768
769
                    groups.push((group, users));
                    group = gr.clone();
770
771
                    users = Vec::new();
                } else if ui.id != userinfo.id {
772
773
                    users.push((userinfo, grades));
                    userinfo = ui.clone();
774
                    grades = vec![Default::default(); n_tasks];
775
                }
776
777
                let index = g.taskgroup;
                grades[taskindex[&index]] = *g;
778
            }
779
780
            users.push((userinfo, grades));
            groups.push((group, users));
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800

            (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
                     ORDER BY id ASC";
        let tasknames: Vec<(i32, String)> =
            self.query_map_many(query, &[&contest_id], |row| (row.get(0), row.get(1))).unwrap();
        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);
        }

801
802
803
804
805
806
807
808
809
810
811
812
813
814
        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
                     ORDER BY taskgroup.id ASC";
        let gradeinfo =
            self.query_map_many(query, &[&session_token, &contest_id], |row| Grade { taskgroup: row.get(0),
                                                                                     user: row.get(1),
                                                                                     grade: row.get(2),
                                                                                     validated: row.get(3) })
                .unwrap();
        let gradeinfo_iter = gradeinfo.iter();
815
816
817
818
819

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

        for g in gradeinfo_iter {
            let index = g.taskgroup;
820
            grades[taskindex[&index]] = *g;
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
        }

        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> {
841
842
        let query = "SELECT id, location, filename, name, duration, public, start_date, end_date, min_grade, max_grade,
                            positionalnumber
843
                     FROM contest
844
                     ORDER BY positionalnumber";
845
846
847
848
849
850
851
852
        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),
853
854
                                                        min_grade: row.get(8),
                                                        max_grade: row.get(9),
855
                                                        positionalnumber: row.get(10),
856
857
858
859
860
                                                        taskgroups: Vec::new() })
            .unwrap()
    }

    fn get_contest_by_id(&self, contest_id: i32) -> Contest {
861
        let query = "SELECT location, filename, name, duration, public, start_date, end_date, min_grade, max_grade
862
863
864
865
866
867
868
869
870
871
                     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),
872
873
                                                                  min_grade: row.get(7),
                                                                  max_grade: row.get(8),
874
                                                                  positionalnumber: None,
875
876
877
878
879
880
881
                                                                  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,
882
883
                            contest.start_date, contest.end_date, contest.min_grade, contest.max_grade, taskgroup.id,
                            taskgroup.name, task.id, task.location, task.stars
884
885
886
                     FROM contest
                     JOIN taskgroup ON contest.id = taskgroup.contest
                     JOIN task ON taskgroup.id = task.taskgroup
887
                     WHERE contest.id = ?1
888
                     ORDER BY taskgroup.positionalnumber";
889
890
        let taskgroupcontest =
            self.query_map_many(query, &[&contest_id], |row| {
891
892
893
894
895
896
897
898
                    (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),
899
900
                               min_grade: row.get(7),
                               max_grade: row.get(8),
901
                               positionalnumber: None,
902
                               taskgroups: Vec::new() },
903
                     Taskgroup { id: Some(row.get(9)),
904
                                 contest: contest_id,
905
                                 name: row.get(10),
906
907
                                 positionalnumber: None,
                                 tasks: Vec::new() },
908
                     Task { id: Some(row.get(11)), taskgroup: row.get(9), location: row.get(12), stars: row.get(13) })
909
910
                })
                .unwrap();
911
        let mut taskgroupcontest_iter = taskgroupcontest.into_iter();
912

913
        let (mut contest, mut taskgroup, task) = taskgroupcontest_iter.next().unwrap();
914
915
        taskgroup.tasks.push(task);
        for tgc in taskgroupcontest_iter {
916
917
918
919
            let (_, tg, t) = tgc;
            if tg.id != taskgroup.id {
                contest.taskgroups.push(taskgroup);
                taskgroup = tg;
920
            }
921
            taskgroup.tasks.push(t);
922
923
924
925
926
927
928
        }
        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,
929
930
                            contest.start_date, contest.end_date, contest.min_grade, contest.max_grade, taskgroup.id,
                            taskgroup.name
931
932
933
                     FROM contest
                     JOIN taskgroup ON contest.id = taskgroup.contest
                     WHERE contest.id = ?1";
934
935
936
937
938
939
940
941
942
        let taskgroupcontest = self.query_map_many(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),
943
944
                                                  min_grade: row.get(7),
                                                  max_grade: row.get(8),
945
                                                  positionalnumber: None,
946
                                                  taskgroups: Vec::new() },
947
                                        Taskgroup { id: Some(row.get(9)),
948
                                                    contest: contest_id,
949
                                                    name: row.get(10),
950
951
952
953
                                                    positionalnumber: None,
                                                    tasks: Vec::new() })
                                   })
                                   .unwrap();
954
        let mut taskgroupcontest_iter = taskgroupcontest.into_iter();
955

956
        let (mut contest, taskgroup) = taskgroupcontest_iter.next().unwrap();
957
958
        contest.taskgroups.push(taskgroup);
        for tgc in taskgroupcontest_iter {
959
960
            let (_, tg) = tgc;
            contest.taskgroups.push(tg);
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
        }
        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) {
        let query = "SELECT task.location, task.stars, taskgroup.id, taskgroup.name, contest.id, contest.location,
                            contest.filename, contest.name, contest.duration, contest.public, contest.start_date,
1011
                            contest.end_date, contest.min_grade, contest.max_grade
1012
1013
1014
1015
1016
1017
                     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) },
1018
1019
1020
1021
1022
                 Taskgroup { id: Some(row.get(2)),
                             contest: row.get(4),
                             name: row.get(3),
                             positionalnumber: None,
                             tasks: Vec::new() },
1023
1024
1025
1026
1027
1028
1029
1030
                 Contest { id: Some(row.get(4)),
                           location: row.get(5),
                           filename: row.get(6),
                           name: row.get(7),
                           duration: row.get(8),
                           public: row.get(9),
                           start: row.get(10),
                           end: row.get(11),
1031
1032
                           min_grade: row.get(12),
                           max_grade: row.get(13),
1033
                           positionalnumber: None,
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
1067
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
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
                           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,
1114
                            street, zip, city, nation, grade, sex, is_teacher, oauth_provider, oauth_foreign_id, salt
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
                     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),
1140
                                                                                     sex: row.get(19),
1141

1142
                                                                                     is_teacher: row.get(20),
1143
1144
                                                                                     managed_by: Some(group_id),

1145
1146
                                                                                     oauth_provider: row.get(21),
                                                                                     oauth_foreign_id: row.get(22) })
1147
1148
1149
                            .unwrap();
        Some(group)
    }
1150

1151
1152
1153
1154
1155
1156
1157
1158
    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;";
1159
        let n_asession: i64 = self.query_map_one(query, &[&then], |row| row.get(0)).unwrap().unwrap();
1160
1161
1162
1163

        let query = "SELECT count(*)
                     FROM participation
                     WHERE start_date > ?1;";
1164
        let n_apart: i64 = self.query_map_one(query, &[&then], |row| row.get(0)).unwrap().unwrap();
1165
1166
1167

        let query = "SELECT count(*)
                     FROM session;";
1168
        let n_session: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1169
1170
1171

        let query = "SELECT count(*)
                     FROM session
1172
1173
                     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();
1174
1175
1176

        let query = "SELECT count(*)
                     FROM session
1177
1178
                     WHERE oauth_foreign_id IS NOT NULL;";
        let n_pmsuser: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1179
1180
1181
1182

        let query = "SELECT count(*)
                     FROM session
                     WHERE is_teacher = ?1;";
1183
        let n_teacher: i64 = self.query_map_one(query, &[&true], |row| row.get(0)).unwrap().unwrap();
1184
1185
1186

        let query = "SELECT count(*)
                     FROM participation;";
1187
        let n_part: i64 = self.query_map_one(query, &[], |row| row.get(0)).unwrap().unwrap();
1188
1189
1190

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

1193
1194
        format!(
                "{{
Robert Czechowski's avatar
Robert Czechowski committed
1195
  'timestamp': {},
1196
1197
1198
1199
1200
1201
1202
1203
  'active_sessions': {},
  'active_participations': {},
  'sessions': {},
  'users': {},
  'pms_users': {},
  'teachers': {},
  'participations': {},
  'submissions': {}
1204
1205
}}
",
Robert Czechowski's avatar
Robert Czechowski committed
1206
                now.sec, n_asession, n_apart, n_session, n_user, n_pmsuser, n_teacher, n_part, n_sub
1207
        )
1208
1209
    }

1210
    fn reset_all_contest_visibilities(&self) { self.execute("UPDATE contest SET public = ?1", &[&false]).unwrap(); }
1211
}