]> ToastFreeware Gitweb - toast/confclerk.git/blobdiff - src/sql/sqlengine.cpp
Stale events are deleted now after reloading conference.
[toast/confclerk.git] / src / sql / sqlengine.cpp
index 536ed6364e97df5ff9ff5f6395aac20595bc1a4e..2d8672c61e9aa111edde6f7fc354d7303630511c 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2010 Ixonos Plc.
- * Copyright (C) 2011-2017 Philipp Spitzer, gregor herrmann, Stefan Stahl
+ * Copyright (C) 2011-2021 Philipp Spitzer, gregor herrmann, Stefan Stahl
  *
  * This file is part of ConfClerk.
  *
 #include <QSqlRecord>
 #include <QVariant>
 #include <QDateTime>
+#include "qglobal.h"
+#if QT_VERSION >= 0x050000
+#include <QStandardPaths>
+#else
+#include <QDesktopServices>
+#endif
 
 #include <QDir>
-#include <QDesktopServices>
 #include "sqlengine.h"
 #include "track.h"
 #include "conference.h"
 
 #include <QDebug>
 
-const QString DATE_FORMAT ("yyyy-MM-dd");
-const QString TIME_FORMAT ("hh:mm");
-
-SqlEngine::SqlEngine(QObject *aParent): QObject(aParent) {
+SqlEngine::SqlEngine(QObject *aParent): QObject(aParent), DATE_FORMAT("yyyy-MM-dd"), TIME_FORMAT("hh:mm") {
+#if QT_VERSION >= 0x050000
+    QDir dbPath(QStandardPaths::writableLocation(QStandardPaths::DataLocation));
+#else
     QDir dbPath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
+#endif
     dbFilename = dbPath.absoluteFilePath("ConfClerk.sqlite");
 }
 
@@ -85,8 +91,13 @@ bool SqlEngine::updateDbSchemaVersion000To001() {
 }
 
 
+bool SqlEngine::updateDbSchemaVersion001To002() {
+    return applySqlFile(":/dbschema001to002.sql");
+}
+
+
 bool SqlEngine::createCurrentDbSchema() {
-    return applySqlFile(":/dbschema001.sql");
+    return applySqlFile(":/dbschema002.sql");
 }
 
 
@@ -103,6 +114,9 @@ bool SqlEngine::createOrUpdateDbSchema() {
         // db schema version 0
         return updateDbSchemaVersion000To001();
     case 1:
+        // db schema version 1
+        return updateDbSchemaVersion001To002();
+    case 2:
         // current schema
         return true;
     default:
@@ -130,42 +144,51 @@ bool SqlEngine::applySqlFile(const QString sqlFile) {
 }
 
 
-void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference, int conferenceId) {
+QDateTime parseDateIgnoreTime(QString dateStr) {
+    QDateTime dateTime = QDateTime::fromString(dateStr, Qt::DateFormat::ISODate);
+    dateTime.setOffsetFromUtc(0);
+    return dateTime;
+}
+
+
+void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference, int conferenceId, bool omit_display_time_shift) {
     QSqlQuery query(db);
-    if (conferenceId <= 0) // insert conference
-    {
+    bool insert = conferenceId <= 0;
+    if (insert) { // insert conference
         query.prepare("INSERT INTO CONFERENCE (title,url,subtitle,venue,city,start,end,"
-                                                "day_change,timeslot_duration,active) "
+                                                "day_change,timeslot_duration,utc_offset,display_time_shift,active) "
                         " VALUES (:title,:url,:subtitle,:venue,:city,:start,:end,"
-                                                ":day_change,:timeslot_duration,:active)");
-        foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city")) {
-            query.bindValue(QString(":") + prop_name, aConference[prop_name]);
-        }
-        query.bindValue(":start", QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t());
-        query.bindValue(":end", QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t());
-        query.bindValue(":day_change", -QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0)));
-        query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
-        query.bindValue(":active", 1);
-        query.exec();
-        emitSqlQueryError(query);
-        aConference["id"] = query.lastInsertId().toString(); // 'id' is assigned automatically
+                                                ":day_change,:timeslot_duration,:utc_offset,:display_time_shift,:active)");
+    } else { // update conference
+        QString update = "UPDATE CONFERENCE set title=:title, url=:url, subtitle=:subtitle, venue=:venue, city=:city, start=:start, end=:end, "
+                         "day_change=:day_change, timeslot_duration=:timeslot_duration, utc_offset=:utc_offset";
+        if (!omit_display_time_shift) update += ", display_time_shift=:display_time_shift";
+        update += ", active=:active WHERE id=:id";
+        query.prepare(update);
     }
-    else // update conference
-    {
-        query.prepare("UPDATE CONFERENCE set title=:title, url=:url, subtitle=:subtitle, venue=:venue, city=:city, start=:start, end=:end,"
-                                            "day_change=:day_change, timeslot_duration=:timeslot_duration, active=:active "
-                      "WHERE id=:id");
-        foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city")) {
-            query.bindValue(QString(":") + prop_name, aConference[prop_name]);
-        }
-        query.bindValue(":start", QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t());
-        query.bindValue(":end", QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t());
-        query.bindValue(":day_change", -QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0)));
-        query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
-        query.bindValue(":active", 1);
-        query.bindValue(":id", conferenceId);
-        query.exec();
-        emitSqlQueryError(query);
+    foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city")) {
+        query.bindValue(QString(":") + prop_name, aConference[prop_name]);
+    }
+    query.bindValue(":start", parseDateIgnoreTime(aConference["start"]).toTime_t());
+    query.bindValue(":end", parseDateIgnoreTime(aConference["end"]).toTime_t());
+    QTime dayChange = QTime::fromString(aConference["day_change"].left(TIME_FORMAT.size()), TIME_FORMAT);
+    query.bindValue(":day_change", QTime(0, 0).secsTo(dayChange));
+    query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
+    QVariant utc_offset;
+    if (!aConference.value("utc_offset").isEmpty()) utc_offset = aConference["utc_offset"].toInt();
+    query.bindValue(":utc_offset", utc_offset);
+    if (!omit_display_time_shift) {
+        QVariant display_time_shift;
+        if (!aConference.value("display_time_shift").isEmpty()) display_time_shift = aConference["display_time_shift"].toInt();
+        query.bindValue(":display_time_shift", display_time_shift);
+    }
+    query.bindValue(":active", 1);
+    if (!insert) query.bindValue(":id", conferenceId);
+    query.exec();
+    emitSqlQueryError(query);
+    if (insert) {
+        aConference["id"] = query.lastInsertId().toString(); // 'id' is assigned automatically
+    } else {
         aConference["id"] = QVariant(conferenceId).toString();
     }
 }
@@ -192,8 +215,6 @@ void SqlEngine::addEventToDB(QHash<QString,QString> &aEvent) {
     }
     QDate startDate = QDate::fromString(aEvent["date"], DATE_FORMAT);
     QTime startTime = QTime::fromString(aEvent["start"], TIME_FORMAT);
-    // 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)
-    if (startTime < conference.dayChangeTime()) startDate = startDate.addDays(1);
     QDateTime startDateTime;
     startDateTime.setTimeSpec(Qt::UTC);
     startDateTime = QDateTime(startDate, startTime, Qt::UTC);
@@ -330,7 +351,7 @@ void SqlEngine::addLinkToDB(QHash<QString,QString> &aLink) {
 }
 
 
-bool SqlEngine::searchEvent(int aConferenceId, const QHash<QString,QString> &aColumns, const QString &aKeyword) {
+bool SqlEngine::searchEvent(int aConferenceId, const QMultiHash<QString,QString> &aColumns, const QString &aKeyword) {
     if (aColumns.empty()) return false;
 
     // DROP
@@ -401,6 +422,14 @@ bool SqlEngine::commitTransaction() {
 }
 
 
+bool SqlEngine::rollbackTransaction() {
+    QSqlQuery query(db);
+    bool success = query.exec("ROLLBACK");
+    emitSqlQueryError(query);
+    return success;
+}
+
+
 bool SqlEngine::deleteConference(int id) {
     QSqlQuery query(db);
     bool success = query.exec("BEGIN IMMEDIATE TRANSACTION");
@@ -430,9 +459,44 @@ bool SqlEngine::deleteConference(int id) {
 }
 
 
+bool SqlEngine::deleteStaleEvents(int conferenceId, QSet<QString> eventIdsToKeep) {
+    QSqlQuery query(db);
+
+    // get all event IDs from conference
+    query.prepare("SELECT id FROM event WHERE xid_conference = ?");
+    query.bindValue(0, conferenceId);
+    bool success = query.exec();
+    emitSqlQueryError(query);
+    if (!success) return false;
+    QSet<QString> existingEventIds;
+    while (query.next()) existingEventIds.insert(query.value(0).toString());
+
+    // determine events that are not existing anymore
+    QSet<QString> eventIdsToRemove = existingEventIds.subtract(eventIdsToKeep);
+
+    // delete events including entries from referencing tables
+    QList<QString> tables = {"link", "event_room", "event_person"};
+    for(const QString& eventId: eventIdsToRemove) {
+        for(const QString& table: tables) {
+            query.prepare(QString("DELETE FROM %1 WHERE xid_conference = ? AND xid_event = ?").arg(table));
+            query.bindValue(0, conferenceId);
+            query.bindValue(1, eventId);
+            success &= query.exec();
+            emitSqlQueryError(query);
+        }
+        query.prepare("DELETE FROM event WHERE xid_conference = ? AND id = ?");
+        query.bindValue(0, conferenceId);
+        query.bindValue(1, eventId);
+        success &= query.exec();
+        emitSqlQueryError(query);
+    }
+
+    return success;
+}
+
+
 void SqlEngine::emitSqlQueryError(const QSqlQuery &query) {
     QSqlError error = query.lastError();
     if (error.type() == QSqlError::NoError) return;
     emit dbError(error.text());
 }
-