[ca90cb1] | 1 | /* |
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| 2 | * Copyright (C) 2010 Ixonos Plc. |
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[de5d0f1] | 3 | * Copyright (C) 2011-2017 Philipp Spitzer, gregor herrmann, Stefan Stahl |
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[ca90cb1] | 4 | * |
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[6df32f2] | 5 | * This file is part of ConfClerk. |
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[ca90cb1] | 6 | * |
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[6df32f2] | 7 | * ConfClerk is free software: you can redistribute it and/or modify it |
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[ca90cb1] | 8 | * under the terms of the GNU General Public License as published by the Free |
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| 9 | * Software Foundation, either version 2 of the License, or (at your option) |
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| 10 | * any later version. |
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| 11 | * |
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[6df32f2] | 12 | * ConfClerk is distributed in the hope that it will be useful, but |
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[ca90cb1] | 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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| 14 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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| 15 | * more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU General Public License along with |
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[6df32f2] | 18 | * ConfClerk. If not, see <http://www.gnu.org/licenses/>. |
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[ca90cb1] | 19 | */ |
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[72f6fe4] | 20 | |
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| 21 | #include <QSqlError> |
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| 22 | #include <QSqlQuery> |
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| 23 | #include <QSqlRecord> |
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| 24 | #include <QVariant> |
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| 25 | #include <QDateTime> |
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[4b6ae6b] | 26 | #include <QStandardPaths> |
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[72f6fe4] | 27 | |
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| 28 | #include <QDir> |
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| 29 | #include "sqlengine.h" |
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[8d6798d] | 30 | #include "track.h" |
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| 31 | #include "conference.h" |
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[72f6fe4] | 32 | |
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| 33 | #include <QDebug> |
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| 34 | |
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| 35 | const QString DATE_FORMAT ("yyyy-MM-dd"); |
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| 36 | const QString TIME_FORMAT ("hh:mm"); |
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| 37 | |
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[61346c9] | 38 | SqlEngine::SqlEngine(QObject *aParent): QObject(aParent) { |
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[4b6ae6b] | 39 | QDir dbPath(QStandardPaths::writableLocation(QStandardPaths::DataLocation)); |
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[61346c9] | 40 | dbFilename = dbPath.absoluteFilePath("ConfClerk.sqlite"); |
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[72f6fe4] | 41 | } |
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| 42 | |
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[61346c9] | 43 | |
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| 44 | SqlEngine::~SqlEngine() { |
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[72f6fe4] | 45 | } |
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| 46 | |
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| 47 | |
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[61346c9] | 48 | void SqlEngine::open() { |
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[9b5a80ff] | 49 | // we may have to create the directory of the database |
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[61346c9] | 50 | QFileInfo dbFilenameInfo(dbFilename); |
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[a8f8b5d] | 51 | QDir cwd; |
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| 52 | cwd.mkpath(dbFilenameInfo.absolutePath()); |
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[9b5a80ff] | 53 | // We don't have to handle errors because in worst case, opening the database will fail |
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| 54 | // and db.isOpen() returns false. |
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[61346c9] | 55 | db = QSqlDatabase::addDatabase("QSQLITE"); |
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| 56 | db.setDatabaseName(dbFilename); |
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| 57 | db.open(); |
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| 58 | } |
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| 59 | |
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| 60 | |
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| 61 | int SqlEngine::dbSchemaVersion() { |
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| 62 | QSqlQuery query(db); |
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| 63 | if (!query.exec("PRAGMA user_version")) { |
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| 64 | emitSqlQueryError(query); |
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| 65 | return -2; |
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[72f6fe4] | 66 | } |
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[61346c9] | 67 | query.first(); |
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| 68 | int version = query.value(0).toInt(); |
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| 69 | if (version == 0) { |
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| 70 | // check whether the tables are existing |
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| 71 | if (!query.exec("select count(*) from sqlite_master where name='CONFERENCE'")) { |
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| 72 | emitSqlQueryError(query); |
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| 73 | return -2; |
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| 74 | } |
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| 75 | query.first(); |
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| 76 | if (query.value(0).toInt() == 1) return 0; // tables are existing |
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| 77 | return -1; // database seems to be empty (or has other tables) |
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[e662750] | 78 | } |
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[61346c9] | 79 | return version; |
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| 80 | } |
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[72f6fe4] | 81 | |
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| 82 | |
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[61346c9] | 83 | bool SqlEngine::updateDbSchemaVersion000To001() { |
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[f1826af] | 84 | return applySqlFile(":/dbschema000to001.sql"); |
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[72f6fe4] | 85 | } |
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| 86 | |
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[61346c9] | 87 | |
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| 88 | bool SqlEngine::createCurrentDbSchema() { |
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[f1826af] | 89 | return applySqlFile(":/dbschema001.sql"); |
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[61346c9] | 90 | } |
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| 91 | |
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| 92 | |
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| 93 | bool SqlEngine::createOrUpdateDbSchema() { |
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| 94 | int version = dbSchemaVersion(); |
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| 95 | switch (version) { |
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| 96 | case -2: |
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| 97 | // the error has already been emitted by the previous function |
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| 98 | return false; |
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| 99 | case -1: |
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| 100 | // empty database |
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| 101 | return createCurrentDbSchema(); |
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| 102 | case 0: |
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| 103 | // db schema version 0 |
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| 104 | return updateDbSchemaVersion000To001(); |
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| 105 | case 1: |
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| 106 | // current schema |
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| 107 | return true; |
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| 108 | default: |
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| 109 | // unsupported schema |
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| 110 | emit dbError(tr("Unsupported database schema version %1.").arg(version)); |
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| 111 | } |
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| 112 | return false; |
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[72f6fe4] | 113 | } |
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| 114 | |
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| 115 | |
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[f1826af] | 116 | bool SqlEngine::applySqlFile(const QString sqlFile) { |
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| 117 | QFile file(sqlFile); |
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| 118 | file.open(QIODevice::ReadOnly | QIODevice::Text); |
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| 119 | QString allSqlStatements = file.readAll(); |
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| 120 | QSqlQuery query(db); |
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| 121 | foreach(QString sql, allSqlStatements.split(";")) { |
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| 122 | if (sql.trimmed().isEmpty()) // do not execute empty queries like the last character from create_tables.sql |
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| 123 | continue; |
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| 124 | if (!query.exec(sql)) { |
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| 125 | emitSqlQueryError(query); |
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| 126 | return false; |
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| 127 | } |
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| 128 | } |
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| 129 | return true; |
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| 130 | } |
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| 131 | |
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| 132 | |
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[61346c9] | 133 | void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference, int conferenceId) { |
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| 134 | QSqlQuery query(db); |
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| 135 | if (conferenceId <= 0) // insert conference |
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[72f6fe4] | 136 | { |
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[5293ef0] | 137 | query.prepare("INSERT INTO CONFERENCE (title,url,subtitle,venue,city,start,end," |
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[61346c9] | 138 | "day_change,timeslot_duration,active) " |
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[5293ef0] | 139 | " VALUES (:title,:url,:subtitle,:venue,:city,:start,:end," |
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[61346c9] | 140 | ":day_change,:timeslot_duration,:active)"); |
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[5293ef0] | 141 | foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city")) { |
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[61346c9] | 142 | query.bindValue(QString(":") + prop_name, aConference[prop_name]); |
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[1735f55] | 143 | } |
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[61346c9] | 144 | query.bindValue(":start", QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()); |
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| 145 | query.bindValue(":end", QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()); |
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| 146 | query.bindValue(":day_change", -QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0))); |
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| 147 | query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0))); |
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| 148 | query.bindValue(":active", 1); |
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[5e50875] | 149 | query.exec(); |
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[61346c9] | 150 | emitSqlQueryError(query); |
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| 151 | aConference["id"] = query.lastInsertId().toString(); // 'id' is assigned automatically |
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| 152 | } |
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| 153 | else // update conference |
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| 154 | { |
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[5293ef0] | 155 | query.prepare("UPDATE CONFERENCE set title=:title, url=:url, subtitle=:subtitle, venue=:venue, city=:city, start=:start, end=:end," |
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[61346c9] | 156 | "day_change=:day_change, timeslot_duration=:timeslot_duration, active=:active " |
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| 157 | "WHERE id=:id"); |
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[5293ef0] | 158 | foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city")) { |
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[61346c9] | 159 | query.bindValue(QString(":") + prop_name, aConference[prop_name]); |
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[2dffed3] | 160 | } |
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[61346c9] | 161 | query.bindValue(":start", QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()); |
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| 162 | query.bindValue(":end", QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()); |
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| 163 | query.bindValue(":day_change", -QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0))); |
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| 164 | query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0))); |
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| 165 | query.bindValue(":active", 1); |
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| 166 | query.bindValue(":id", conferenceId); |
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[5e50875] | 167 | query.exec(); |
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[61346c9] | 168 | emitSqlQueryError(query); |
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[e2c612c] | 169 | aConference["id"] = QVariant(conferenceId).toString(); |
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[72f6fe4] | 170 | } |
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| 171 | } |
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| 172 | |
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| 173 | |
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[61346c9] | 174 | void SqlEngine::addEventToDB(QHash<QString,QString> &aEvent) { |
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[41c4ceb] | 175 | int conferenceId = aEvent["conference_id"].toInt(); |
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| 176 | Conference conference = Conference::getById(conferenceId); |
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| 177 | |
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| 178 | // insert event track to table and get track id |
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[61346c9] | 179 | Track track; |
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| 180 | int trackId; |
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[41c4ceb] | 181 | QString trackName = aEvent["track"]; |
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[e27a3f5] | 182 | if (trackName.isEmpty()) trackName = tr("No track"); |
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[61346c9] | 183 | try |
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[72f6fe4] | 184 | { |
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[41c4ceb] | 185 | track = Track::retrieveByName(conferenceId, trackName); |
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[61346c9] | 186 | trackId = track.id(); |
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| 187 | } |
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| 188 | catch (OrmNoObjectException &e) { |
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[41c4ceb] | 189 | track.setConference(conferenceId); |
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| 190 | track.setName(trackName); |
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[61346c9] | 191 | trackId = track.insert(); |
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| 192 | } |
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[41c4ceb] | 193 | QDate startDate = QDate::fromString(aEvent["date"], DATE_FORMAT); |
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| 194 | QTime startTime = QTime::fromString(aEvent["start"], TIME_FORMAT); |
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| 195 | // consider day_change (note that if day_change is e.g. at 04:00 AM, an event starting at 02:00 AM has the previous date in the XML file) |
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| 196 | if (startTime < conference.dayChangeTime()) startDate = startDate.addDays(1); |
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[61346c9] | 197 | QDateTime startDateTime; |
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| 198 | startDateTime.setTimeSpec(Qt::UTC); |
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[41c4ceb] | 199 | startDateTime = QDateTime(startDate, startTime, Qt::UTC); |
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[f548c17] | 200 | |
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[61346c9] | 201 | bool event_exists = false; |
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| 202 | { |
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| 203 | QSqlQuery check_event_query; |
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| 204 | check_event_query.prepare("SELECT * FROM EVENT WHERE xid_conference = :xid_conference AND id = :id"); |
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| 205 | check_event_query.bindValue(":xid_conference", aEvent["conference_id"]); |
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| 206 | check_event_query.bindValue(":id", aEvent["id"]); |
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| 207 | if (!check_event_query.exec()) { |
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| 208 | qWarning() << "check event failed, conference id:" << aEvent["xid_conference"] |
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| 209 | << "event id:" << aEvent["id"] |
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| 210 | << "error:" << check_event_query.lastError() |
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| 211 | ; |
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| 212 | return; |
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[f548c17] | 213 | } |
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[61346c9] | 214 | if (check_event_query.isActive() and check_event_query.isSelect() and check_event_query.next()) { |
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| 215 | event_exists = true; |
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[c129da26] | 216 | } |
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[72f6fe4] | 217 | } |
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| 218 | |
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[61346c9] | 219 | QSqlQuery result; |
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| 220 | if (event_exists) { |
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| 221 | result.prepare("UPDATE EVENT SET" |
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| 222 | " start = :start" |
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| 223 | ", duration = :duration" |
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| 224 | ", xid_track = :xid_track" |
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| 225 | ", type = :type" |
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| 226 | ", language = :language" |
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| 227 | ", tag = :tag" |
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| 228 | ", title = :title" |
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| 229 | ", subtitle = :subtitle" |
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| 230 | ", abstract = :abstract" |
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| 231 | ", description = :description" |
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| 232 | " WHERE id = :id AND xid_conference = :xid_conference"); |
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| 233 | } else { |
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| 234 | result.prepare("INSERT INTO EVENT " |
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| 235 | " (xid_conference, id, start, duration, xid_track, type, " |
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| 236 | " language, tag, title, subtitle, abstract, description) " |
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| 237 | " VALUES (:xid_conference, :id, :start, :duration, :xid_track, :type, " |
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| 238 | ":language, :tag, :title, :subtitle, :abstract, :description)"); |
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| 239 | } |
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| 240 | result.bindValue(":xid_conference", aEvent["conference_id"]); |
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| 241 | result.bindValue(":start", QString::number(startDateTime.toTime_t())); |
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| 242 | result.bindValue(":duration", -QTime::fromString(aEvent["duration"],TIME_FORMAT).secsTo(QTime(0,0))); |
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| 243 | result.bindValue(":xid_track", trackId); |
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| 244 | static const QList<QString> props = QList<QString>() |
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| 245 | << "id" << "type" << "language" << "tag" << "title" << "subtitle" << "abstract" << "description"; |
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| 246 | foreach (QString prop_name, props) { |
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| 247 | result.bindValue(QString(":") + prop_name, aEvent[prop_name]); |
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| 248 | } |
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| 249 | if (!result.exec()) { |
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| 250 | qWarning() << "event insert/update failed:" << result.lastError(); |
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| 251 | } |
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| 252 | } |
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[72f6fe4] | 253 | |
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[dcefa71] | 254 | |
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[61346c9] | 255 | void SqlEngine::addPersonToDB(QHash<QString,QString> &aPerson) { |
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| 256 | QSqlQuery query(db); |
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| 257 | query.prepare("INSERT INTO PERSON (xid_conference,id,name) VALUES (:xid_conference, :id, :name)"); |
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| 258 | query.bindValue(":xid_conference", aPerson["conference_id"]); |
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| 259 | query.bindValue(":id", aPerson["id"]); |
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| 260 | query.bindValue(":name", aPerson["name"]); |
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| 261 | query.exec(); // TODO some queries fail due to the unique key constraint |
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| 262 | // if (!query.exec()) qDebug() << "SQL query 'insert into person' failed: " << query.lastError(); |
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| 263 | |
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| 264 | query = QSqlQuery(db); |
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| 265 | query.prepare("INSERT INTO EVENT_PERSON (xid_conference,xid_event,xid_person) VALUES (:xid_conference, :xid_event, :xid_person)"); |
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| 266 | query.bindValue(":xid_conference", aPerson["conference_id"]); |
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| 267 | query.bindValue(":xid_event", aPerson["event_id"]); |
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| 268 | query.bindValue(":xid_person", aPerson["id"]); |
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| 269 | query.exec(); // TODO some queries fail due to the unique key constraint |
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| 270 | // if (!query.exec()) qDebug() << "SQL query 'insert into event_person' failed: " << query.lastError(); |
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[72f6fe4] | 271 | } |
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| 272 | |
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| 273 | |
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[61346c9] | 274 | void SqlEngine::addRoomToDB(QHash<QString,QString> &aRoom) { |
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| 275 | QSqlQuery query(db); |
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| 276 | query.prepare("SELECT id FROM ROOM WHERE xid_conference=:conference_id and name=:name"); |
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| 277 | query.bindValue(":conference_id", aRoom["conference_id"]); |
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| 278 | query.bindValue(":name", aRoom["name"]); |
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[5e50875] | 279 | query.exec(); |
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[61346c9] | 280 | emitSqlQueryError(query); |
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| 281 | // now we have to check whether ROOM record with 'name' exists or not, |
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| 282 | // - if it doesn't exist yet, then we have to add that record to 'ROOM' table |
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| 283 | // and assign autoincremented 'id' to aRoom |
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| 284 | // - if it exists, then we need to get its 'id' and assign it to aRoom |
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| 285 | aRoom["id"] = ""; |
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| 286 | if(query.next()) // ROOM record with 'name' already exists: we need to get its 'id' |
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| 287 | { |
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| 288 | aRoom["id"] = query.value(0).toString(); |
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| 289 | } |
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| 290 | else // ROOM record doesn't exist yet, need to create it |
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[72f6fe4] | 291 | { |
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[63b2343] | 292 | query = QSqlQuery(db); |
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[0ba2b59] | 293 | query.prepare("INSERT INTO ROOM (xid_conference,name) VALUES (:xid_conference, :name)"); |
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[61346c9] | 294 | query.bindValue(":xid_conference", aRoom["conference_id"]); |
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[d942dc3] | 295 | query.bindValue(":name", aRoom["name"]); |
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[5e50875] | 296 | query.exec(); |
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[61346c9] | 297 | emitSqlQueryError(query); |
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| 298 | aRoom["id"]= query.lastInsertId().toString(); // 'id' is assigned automatically |
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| 299 | //LOG_AUTOTEST(query); |
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[72f6fe4] | 300 | } |
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[61346c9] | 301 | |
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| 302 | // remove previous conference/room records; room names might have changed |
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| 303 | query = QSqlQuery(db); |
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| 304 | query.prepare("DELETE FROM EVENT_ROOM WHERE xid_conference=:conference_id AND xid_event=:event_id"); |
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| 305 | query.bindValue(":conference_id", aRoom["conference_id"]); |
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| 306 | query.bindValue(":event_id", aRoom["event_id"]); |
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[5e50875] | 307 | query.exec(); |
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[61346c9] | 308 | emitSqlQueryError(query); |
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| 309 | // and insert new ones |
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| 310 | query = QSqlQuery(db); |
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| 311 | query.prepare("INSERT INTO EVENT_ROOM (xid_conference,xid_event,xid_room) VALUES (:conference_id, :event_id, :room_id)"); |
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| 312 | query.bindValue(":conference_id", aRoom["conference_id"]); |
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| 313 | query.bindValue(":event_id", aRoom["event_id"]); |
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| 314 | query.bindValue(":room_id", aRoom["id"]); |
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[5e50875] | 315 | query.exec(); |
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[61346c9] | 316 | emitSqlQueryError(query); |
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[72f6fe4] | 317 | } |
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| 318 | |
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| 319 | |
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[61346c9] | 320 | void SqlEngine::addLinkToDB(QHash<QString,QString> &aLink) { |
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[72f6fe4] | 321 | //TODO: check if the link doesn't exist before inserting |
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[61346c9] | 322 | QSqlQuery query(db); |
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| 323 | query.prepare("INSERT INTO LINK (xid_event, xid_conference, name, url) VALUES (:xid_event, :xid_conference, :name, :url)"); |
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| 324 | query.bindValue(":xid_event", aLink["event_id"]); |
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| 325 | query.bindValue(":xid_conference", aLink["conference_id"]); |
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| 326 | query.bindValue(":name", aLink["name"]); |
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| 327 | query.bindValue(":url", aLink["url"]); |
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[5e50875] | 328 | query.exec(); |
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[61346c9] | 329 | emitSqlQueryError(query); |
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[72f6fe4] | 330 | } |
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| 331 | |
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[990afd5] | 332 | |
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[61346c9] | 333 | bool SqlEngine::searchEvent(int aConferenceId, const QHash<QString,QString> &aColumns, const QString &aKeyword) { |
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| 334 | if (aColumns.empty()) return false; |
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[990afd5] | 335 | |
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[e662750] | 336 | // DROP |
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[61346c9] | 337 | QSqlQuery query(db); |
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| 338 | query.exec("DROP TABLE IF EXISTS SEARCH_EVENT"); |
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| 339 | emitSqlQueryError(query); |
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| 340 | |
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[e662750] | 341 | // CREATE |
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[61346c9] | 342 | query.exec("CREATE TEMP TABLE SEARCH_EVENT ( xid_conference INTEGER NOT NULL, id INTEGER NOT NULL )"); |
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| 343 | emitSqlQueryError(query); |
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| 344 | |
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[e662750] | 345 | // INSERT |
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[a55781e] | 346 | QString sql = QString("INSERT INTO SEARCH_EVENT ( xid_conference, id ) " |
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[66698a6] | 347 | "SELECT DISTINCT EVENT.xid_conference, EVENT.id FROM EVENT "); |
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[c7b58d4] | 348 | if( aColumns.contains("ROOM") ){ |
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[71c3eb6] | 349 | sql += "LEFT JOIN EVENT_ROOM ON ( EVENT.xid_conference = EVENT_ROOM.xid_conference AND EVENT.id = EVENT_ROOM.xid_event ) "; |
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| 350 | sql += "LEFT JOIN ROOM ON ( EVENT_ROOM.xid_room = ROOM.id ) "; |
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[c7b58d4] | 351 | } |
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| 352 | if( aColumns.contains("PERSON") ){ |
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[71c3eb6] | 353 | sql += "LEFT JOIN EVENT_PERSON ON ( EVENT.xid_conference = EVENT_PERSON.xid_conference AND EVENT.id = EVENT_PERSON.xid_event ) "; |
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| 354 | sql += "LEFT JOIN PERSON ON ( EVENT_PERSON.xid_person = PERSON.id ) "; |
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[c7b58d4] | 355 | } |
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[a55781e] | 356 | sql += QString("WHERE EVENT.xid_conference = %1 AND (").arg( aConferenceId ); |
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[c7b58d4] | 357 | |
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[525e2e2] | 358 | QStringList searchKeywords = aKeyword.trimmed().split(QRegExp("\\s+")); |
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| 359 | QStringList whereAnd; |
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| 360 | for (int i=0; i < searchKeywords.count(); i++) { |
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| 361 | QStringList whereOr; |
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| 362 | foreach (QString table, aColumns.uniqueKeys()) { |
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| 363 | foreach (QString column, aColumns.values(table)){ |
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| 364 | whereOr.append(QString("%1.%2 LIKE '\%' || :%1%2%3 || '\%'").arg(table).arg(column).arg(i)); |
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[47eda2b] | 365 | } |
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[c7b58d4] | 366 | } |
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[525e2e2] | 367 | whereAnd.append(whereOr.join(" OR ")); |
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[990afd5] | 368 | } |
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[525e2e2] | 369 | sql += whereAnd.join(") AND ("); |
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[a55781e] | 370 | sql += QString(")"); |
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[990afd5] | 371 | |
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[a55781e] | 372 | query.prepare(sql); |
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[525e2e2] | 373 | for (int i = 0; i != searchKeywords.size(); ++i) { |
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| 374 | QString keyword = searchKeywords[i]; |
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| 375 | foreach (QString table, aColumns.uniqueKeys()) { |
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| 376 | foreach (QString column, aColumns.values(table)) { |
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[53effcb] | 377 | query.bindValue(QString(":%1%2%3").arg(table).arg(column).arg(i), keyword ); |
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[47eda2b] | 378 | } |
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[a55781e] | 379 | } |
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| 380 | } |
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| 381 | |
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[61346c9] | 382 | bool success = query.exec(); |
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| 383 | emitSqlQueryError(query); |
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| 384 | return success; |
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[e662750] | 385 | } |
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| 386 | |
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[1bad318] | 387 | |
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[61346c9] | 388 | bool SqlEngine::beginTransaction() { |
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| 389 | QSqlQuery query(db); |
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| 390 | bool success = query.exec("BEGIN IMMEDIATE TRANSACTION"); |
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| 391 | emitSqlQueryError(query); |
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| 392 | return success; |
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[1bad318] | 393 | } |
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| 394 | |
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| 395 | |
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[61346c9] | 396 | bool SqlEngine::commitTransaction() { |
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| 397 | QSqlQuery query(db); |
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| 398 | bool success = query.exec("COMMIT"); |
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| 399 | emitSqlQueryError(query); |
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| 400 | return success; |
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[1bad318] | 401 | } |
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| 402 | |
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[d97bcab] | 403 | |
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[61346c9] | 404 | bool SqlEngine::deleteConference(int id) { |
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| 405 | QSqlQuery query(db); |
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| 406 | bool success = query.exec("BEGIN IMMEDIATE TRANSACTION"); |
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| 407 | emitSqlQueryError(query); |
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| 408 | |
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| 409 | QStringList sqlList; |
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| 410 | sqlList << "DELETE FROM LINK WHERE xid_conference = ?" |
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| 411 | << "DELETE FROM EVENT_ROOM WHERE xid_conference = ?" |
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| 412 | << "DELETE FROM EVENT_PERSON WHERE xid_conference = ?" |
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| 413 | << "DELETE FROM EVENT WHERE xid_conference = ?" |
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| 414 | << "DELETE FROM ROOM WHERE xid_conference = ?" |
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| 415 | << "DELETE FROM PERSON WHERE xid_conference = ?" |
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| 416 | << "DELETE FROM TRACK WHERE xid_conference = ?" |
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| 417 | << "DELETE FROM CONFERENCE WHERE id = ?"; |
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| 418 | |
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| 419 | foreach (const QString& sql, sqlList) { |
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| 420 | query.prepare(sql); |
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| 421 | query.bindValue(0, id); |
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| 422 | success &= query.exec(); |
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| 423 | emitSqlQueryError(query); |
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[d97bcab] | 424 | } |
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| 425 | |
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[61346c9] | 426 | success &= query.exec("COMMIT"); |
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| 427 | emitSqlQueryError(query); |
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[d97bcab] | 428 | |
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[61346c9] | 429 | return success; |
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[d97bcab] | 430 | } |
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| 431 | |
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[9f367eb] | 432 | |
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[61346c9] | 433 | void SqlEngine::emitSqlQueryError(const QSqlQuery &query) { |
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| 434 | QSqlError error = query.lastError(); |
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| 435 | if (error.type() == QSqlError::NoError) return; |
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| 436 | emit dbError(error.text()); |
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[d97bcab] | 437 | } |
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[61346c9] | 438 | |
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