2 * Copyright (C) 2010 Ixonos Plc.
3 * Copyright (C) 2011-2021 Philipp Spitzer, gregor herrmann, Stefan Stahl
5 * This file is part of ConfClerk.
7 * ConfClerk is free software: you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation, either version 2 of the License, or (at your option)
12 * ConfClerk is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * ConfClerk. If not, see <http://www.gnu.org/licenses/>.
27 #if QT_VERSION >= 0x050000
28 #include <QStandardPaths>
30 #include <QDesktopServices>
34 #include "sqlengine.h"
36 #include "conference.h"
40 SqlEngine::SqlEngine(QObject *aParent): QObject(aParent), DATE_FORMAT("yyyy-MM-dd"), TIME_FORMAT("hh:mm") {
41 #if QT_VERSION >= 0x050000
42 QDir dbPath(QStandardPaths::writableLocation(QStandardPaths::DataLocation));
44 QDir dbPath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
46 dbFilename = dbPath.absoluteFilePath("ConfClerk.sqlite");
50 SqlEngine::~SqlEngine() {
54 void SqlEngine::open() {
55 // we may have to create the directory of the database
56 QFileInfo dbFilenameInfo(dbFilename);
58 cwd.mkpath(dbFilenameInfo.absolutePath());
59 // We don't have to handle errors because in worst case, opening the database will fail
60 // and db.isOpen() returns false.
61 db = QSqlDatabase::addDatabase("QSQLITE");
62 db.setDatabaseName(dbFilename);
67 int SqlEngine::dbSchemaVersion() {
69 if (!query.exec("PRAGMA user_version")) {
70 emitSqlQueryError(query);
74 int version = query.value(0).toInt();
76 // check whether the tables are existing
77 if (!query.exec("select count(*) from sqlite_master where name='CONFERENCE'")) {
78 emitSqlQueryError(query);
82 if (query.value(0).toInt() == 1) return 0; // tables are existing
83 return -1; // database seems to be empty (or has other tables)
89 bool SqlEngine::updateDbSchemaVersion000To001() {
90 return applySqlFile(":/dbschema000to001.sql");
94 bool SqlEngine::updateDbSchemaVersion001To002() {
95 return applySqlFile(":/dbschema001to002.sql");
99 bool SqlEngine::createCurrentDbSchema() {
100 return applySqlFile(":/dbschema002.sql");
104 bool SqlEngine::createOrUpdateDbSchema() {
105 int version = dbSchemaVersion();
108 // the error has already been emitted by the previous function
112 return createCurrentDbSchema();
114 // db schema version 0
115 return updateDbSchemaVersion000To001();
117 // db schema version 1
118 return updateDbSchemaVersion001To002();
123 // unsupported schema
124 emit dbError(tr("Unsupported database schema version %1.").arg(version));
130 bool SqlEngine::applySqlFile(const QString sqlFile) {
132 file.open(QIODevice::ReadOnly | QIODevice::Text);
133 QString allSqlStatements = file.readAll();
135 foreach(QString sql, allSqlStatements.split(";")) {
136 if (sql.trimmed().isEmpty()) // do not execute empty queries like the last character from create_tables.sql
138 if (!query.exec(sql)) {
139 emitSqlQueryError(query);
147 void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference, int conferenceId, bool omit_display_time_shift) {
149 bool insert = conferenceId <= 0;
150 if (insert) { // insert conference
151 query.prepare("INSERT INTO CONFERENCE (title,url,subtitle,venue,city,start,end,"
152 "day_change,timeslot_duration,utc_offset,display_time_shift,active) "
153 " VALUES (:title,:url,:subtitle,:venue,:city,:start,:end,"
154 ":day_change,:timeslot_duration,:utc_offset,:display_time_shift,:active)");
155 } else { // update conference
156 QString update = "UPDATE CONFERENCE set title=:title, url=:url, subtitle=:subtitle, venue=:venue, city=:city, start=:start, end=:end, "
157 "day_change=:day_change, timeslot_duration=:timeslot_duration, utc_offset=:utc_offset";
158 if (!omit_display_time_shift) update += ", display_time_shift=:display_time_shift";
159 update += ", active=:active WHERE id=:id";
160 query.prepare(update);
162 foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city")) {
163 query.bindValue(QString(":") + prop_name, aConference[prop_name]);
165 query.bindValue(":start", QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t());
166 query.bindValue(":end", QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t());
167 QTime dayChange = QTime::fromString(aConference["day_change"].left(TIME_FORMAT.size()), TIME_FORMAT);
168 query.bindValue(":day_change", QTime(0, 0).secsTo(dayChange));
169 query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
171 if (!aConference.value("utc_offset").isEmpty()) utc_offset = aConference["utc_offset"].toInt();
172 query.bindValue(":utc_offset", utc_offset);
173 if (!omit_display_time_shift) {
174 QVariant display_time_shift;
175 if (!aConference.value("display_time_shift").isEmpty()) display_time_shift = aConference["display_time_shift"].toInt();
176 query.bindValue(":display_time_shift", display_time_shift);
178 query.bindValue(":active", 1);
179 if (!insert) query.bindValue(":id", conferenceId);
181 emitSqlQueryError(query);
183 aConference["id"] = query.lastInsertId().toString(); // 'id' is assigned automatically
185 aConference["id"] = QVariant(conferenceId).toString();
190 void SqlEngine::addEventToDB(QHash<QString,QString> &aEvent) {
191 int conferenceId = aEvent["conference_id"].toInt();
192 Conference conference = Conference::getById(conferenceId);
194 // insert event track to table and get track id
197 QString trackName = aEvent["track"];
198 if (trackName.isEmpty()) trackName = tr("No track");
201 track = Track::retrieveByName(conferenceId, trackName);
202 trackId = track.id();
204 catch (OrmNoObjectException &e) {
205 track.setConference(conferenceId);
206 track.setName(trackName);
207 trackId = track.insert();
209 QDate startDate = QDate::fromString(aEvent["date"], DATE_FORMAT);
210 QTime startTime = QTime::fromString(aEvent["start"], TIME_FORMAT);
211 QDateTime startDateTime;
212 startDateTime.setTimeSpec(Qt::UTC);
213 startDateTime = QDateTime(startDate, startTime, Qt::UTC);
215 bool event_exists = false;
217 QSqlQuery check_event_query;
218 check_event_query.prepare("SELECT * FROM EVENT WHERE xid_conference = :xid_conference AND id = :id");
219 check_event_query.bindValue(":xid_conference", aEvent["conference_id"]);
220 check_event_query.bindValue(":id", aEvent["id"]);
221 if (!check_event_query.exec()) {
222 qWarning() << "check event failed, conference id:" << aEvent["xid_conference"]
223 << "event id:" << aEvent["id"]
224 << "error:" << check_event_query.lastError()
228 if (check_event_query.isActive() and check_event_query.isSelect() and check_event_query.next()) {
235 result.prepare("UPDATE EVENT SET"
237 ", duration = :duration"
238 ", xid_track = :xid_track"
240 ", language = :language"
243 ", subtitle = :subtitle"
244 ", abstract = :abstract"
245 ", description = :description"
246 " WHERE id = :id AND xid_conference = :xid_conference");
248 result.prepare("INSERT INTO EVENT "
249 " (xid_conference, id, start, duration, xid_track, type, "
250 " language, tag, title, subtitle, abstract, description) "
251 " VALUES (:xid_conference, :id, :start, :duration, :xid_track, :type, "
252 ":language, :tag, :title, :subtitle, :abstract, :description)");
254 result.bindValue(":xid_conference", aEvent["conference_id"]);
255 result.bindValue(":start", QString::number(startDateTime.toTime_t()));
256 result.bindValue(":duration", -QTime::fromString(aEvent["duration"],TIME_FORMAT).secsTo(QTime(0,0)));
257 result.bindValue(":xid_track", trackId);
258 static const QList<QString> props = QList<QString>()
259 << "id" << "type" << "language" << "tag" << "title" << "subtitle" << "abstract" << "description";
260 foreach (QString prop_name, props) {
261 result.bindValue(QString(":") + prop_name, aEvent[prop_name]);
263 if (!result.exec()) {
264 qWarning() << "event insert/update failed:" << result.lastError();
269 void SqlEngine::addPersonToDB(QHash<QString,QString> &aPerson) {
271 query.prepare("INSERT INTO PERSON (xid_conference,id,name) VALUES (:xid_conference, :id, :name)");
272 query.bindValue(":xid_conference", aPerson["conference_id"]);
273 query.bindValue(":id", aPerson["id"]);
274 query.bindValue(":name", aPerson["name"]);
275 query.exec(); // TODO some queries fail due to the unique key constraint
276 // if (!query.exec()) qDebug() << "SQL query 'insert into person' failed: " << query.lastError();
278 query = QSqlQuery(db);
279 query.prepare("INSERT INTO EVENT_PERSON (xid_conference,xid_event,xid_person) VALUES (:xid_conference, :xid_event, :xid_person)");
280 query.bindValue(":xid_conference", aPerson["conference_id"]);
281 query.bindValue(":xid_event", aPerson["event_id"]);
282 query.bindValue(":xid_person", aPerson["id"]);
283 query.exec(); // TODO some queries fail due to the unique key constraint
284 // if (!query.exec()) qDebug() << "SQL query 'insert into event_person' failed: " << query.lastError();
288 void SqlEngine::addRoomToDB(QHash<QString,QString> &aRoom) {
290 query.prepare("SELECT id FROM ROOM WHERE xid_conference=:conference_id and name=:name");
291 query.bindValue(":conference_id", aRoom["conference_id"]);
292 query.bindValue(":name", aRoom["name"]);
294 emitSqlQueryError(query);
295 // now we have to check whether ROOM record with 'name' exists or not,
296 // - if it doesn't exist yet, then we have to add that record to 'ROOM' table
297 // and assign autoincremented 'id' to aRoom
298 // - if it exists, then we need to get its 'id' and assign it to aRoom
300 if(query.next()) // ROOM record with 'name' already exists: we need to get its 'id'
302 aRoom["id"] = query.value(0).toString();
304 else // ROOM record doesn't exist yet, need to create it
306 query = QSqlQuery(db);
307 query.prepare("INSERT INTO ROOM (xid_conference,name) VALUES (:xid_conference, :name)");
308 query.bindValue(":xid_conference", aRoom["conference_id"]);
309 query.bindValue(":name", aRoom["name"]);
311 emitSqlQueryError(query);
312 aRoom["id"]= query.lastInsertId().toString(); // 'id' is assigned automatically
313 //LOG_AUTOTEST(query);
316 // remove previous conference/room records; room names might have changed
317 query = QSqlQuery(db);
318 query.prepare("DELETE FROM EVENT_ROOM WHERE xid_conference=:conference_id AND xid_event=:event_id");
319 query.bindValue(":conference_id", aRoom["conference_id"]);
320 query.bindValue(":event_id", aRoom["event_id"]);
322 emitSqlQueryError(query);
323 // and insert new ones
324 query = QSqlQuery(db);
325 query.prepare("INSERT INTO EVENT_ROOM (xid_conference,xid_event,xid_room) VALUES (:conference_id, :event_id, :room_id)");
326 query.bindValue(":conference_id", aRoom["conference_id"]);
327 query.bindValue(":event_id", aRoom["event_id"]);
328 query.bindValue(":room_id", aRoom["id"]);
330 emitSqlQueryError(query);
334 void SqlEngine::addLinkToDB(QHash<QString,QString> &aLink) {
335 //TODO: check if the link doesn't exist before inserting
337 query.prepare("INSERT INTO LINK (xid_event, xid_conference, name, url) VALUES (:xid_event, :xid_conference, :name, :url)");
338 query.bindValue(":xid_event", aLink["event_id"]);
339 query.bindValue(":xid_conference", aLink["conference_id"]);
340 query.bindValue(":name", aLink["name"]);
341 query.bindValue(":url", aLink["url"]);
343 emitSqlQueryError(query);
347 bool SqlEngine::searchEvent(int aConferenceId, const QMultiHash<QString,QString> &aColumns, const QString &aKeyword) {
348 if (aColumns.empty()) return false;
352 query.exec("DROP TABLE IF EXISTS SEARCH_EVENT");
353 emitSqlQueryError(query);
356 query.exec("CREATE TEMP TABLE SEARCH_EVENT ( xid_conference INTEGER NOT NULL, id INTEGER NOT NULL )");
357 emitSqlQueryError(query);
360 QString sql = QString("INSERT INTO SEARCH_EVENT ( xid_conference, id ) "
361 "SELECT DISTINCT EVENT.xid_conference, EVENT.id FROM EVENT ");
362 if( aColumns.contains("ROOM") ){
363 sql += "LEFT JOIN EVENT_ROOM ON ( EVENT.xid_conference = EVENT_ROOM.xid_conference AND EVENT.id = EVENT_ROOM.xid_event ) ";
364 sql += "LEFT JOIN ROOM ON ( EVENT_ROOM.xid_room = ROOM.id ) ";
366 if( aColumns.contains("PERSON") ){
367 sql += "LEFT JOIN EVENT_PERSON ON ( EVENT.xid_conference = EVENT_PERSON.xid_conference AND EVENT.id = EVENT_PERSON.xid_event ) ";
368 sql += "LEFT JOIN PERSON ON ( EVENT_PERSON.xid_person = PERSON.id ) ";
370 sql += QString("WHERE EVENT.xid_conference = %1 AND (").arg( aConferenceId );
372 QStringList searchKeywords = aKeyword.trimmed().split(QRegExp("\\s+"));
373 QStringList whereAnd;
374 for (int i=0; i < searchKeywords.count(); i++) {
376 foreach (QString table, aColumns.uniqueKeys()) {
377 foreach (QString column, aColumns.values(table)){
378 whereOr.append(QString("%1.%2 LIKE '\%' || :%1%2%3 || '\%'").arg(table).arg(column).arg(i));
381 whereAnd.append(whereOr.join(" OR "));
383 sql += whereAnd.join(") AND (");
387 for (int i = 0; i != searchKeywords.size(); ++i) {
388 QString keyword = searchKeywords[i];
389 foreach (QString table, aColumns.uniqueKeys()) {
390 foreach (QString column, aColumns.values(table)) {
391 query.bindValue(QString(":%1%2%3").arg(table).arg(column).arg(i), keyword );
396 bool success = query.exec();
397 emitSqlQueryError(query);
402 bool SqlEngine::beginTransaction() {
404 bool success = query.exec("BEGIN IMMEDIATE TRANSACTION");
405 emitSqlQueryError(query);
410 bool SqlEngine::commitTransaction() {
412 bool success = query.exec("COMMIT");
413 emitSqlQueryError(query);
418 bool SqlEngine::rollbackTransaction() {
420 bool success = query.exec("ROLLBACK");
421 emitSqlQueryError(query);
426 bool SqlEngine::deleteConference(int id) {
428 bool success = query.exec("BEGIN IMMEDIATE TRANSACTION");
429 emitSqlQueryError(query);
432 sqlList << "DELETE FROM LINK WHERE xid_conference = ?"
433 << "DELETE FROM EVENT_ROOM WHERE xid_conference = ?"
434 << "DELETE FROM EVENT_PERSON WHERE xid_conference = ?"
435 << "DELETE FROM EVENT WHERE xid_conference = ?"
436 << "DELETE FROM ROOM WHERE xid_conference = ?"
437 << "DELETE FROM PERSON WHERE xid_conference = ?"
438 << "DELETE FROM TRACK WHERE xid_conference = ?"
439 << "DELETE FROM CONFERENCE WHERE id = ?";
441 foreach (const QString& sql, sqlList) {
443 query.bindValue(0, id);
444 success &= query.exec();
445 emitSqlQueryError(query);
448 success &= query.exec("COMMIT");
449 emitSqlQueryError(query);
455 void SqlEngine::emitSqlQueryError(const QSqlQuery &query) {
456 QSqlError error = query.lastError();
457 if (error.type() == QSqlError::NoError) return;
458 emit dbError(error.text());