store room map in database
[toast/confclerk.git] / src / sql / sqlengine.cpp
index faed167..c87ce2b 100644 (file)
@@ -1,3 +1,21 @@
+/*
+ * Copyright (C) 2010 Ixonos Plc.
+ *
+ * This file is part of fosdem-schedule.
+ *
+ * fosdem-schedule is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * fosdem-schedule is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * fosdem-schedule.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
 #include <QSqlError>
 #include <QSqlQuery>
@@ -6,7 +24,6 @@
 #include <QDateTime>
 
 #include <QDir>
-#include <appsettings.h>
 #include "sqlengine.h"
 #include <track.h>
 #include <conference.h>
@@ -33,18 +50,20 @@ QString SqlEngine::login(const QString &aDatabaseType, const QString &aDatabaseN
     bool result = false;
     if(!QFile::exists(aDatabaseName)) // the DB (tables) doesn't exists, and so we have to create one
     {
-        // creating empty DB + tables
-        // ??? what is the best way of creating new empty DB ???
-        // we can either:
-        //  - create new DB + tables by issuing corresponding queries (used solution)
-        //  - create new DB from resource, which contains empty DB with tables
-        result = createTables(database);
+        // copy conference Db from resource, instead of creating
+        // empty tables and then parsing the schedule
+        QFile dbFile(aDatabaseName);
+        QFile(":/fosdem.sqlite").copy(aDatabaseName);
+        dbFile.setPermissions(QFile::ReadOwner | QFile::WriteOwner | QFile::ReadGroup | QFile::WriteGroup);
+        database.open();
     }
     else
     {
         database.open();
     }
 
+    checkConferenceMap(database);
+
     //LOG_INFO(QString("Opening '%1' database '%2'").arg(aDatabaseType).arg(aDatabaseName));
 
     return result ? QString() : database.lastError().text();
@@ -84,23 +103,21 @@ void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference)
 
         if(!confId) // conference 'aConference' isn't in the table => insert
         {
-            QString values = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7', '%8', '%9'") \
-                             .arg(aConference["title"]) \
-                             .arg(aConference["subtitle"]) \
-                             .arg(aConference["venue"]) \
-                             .arg(aConference["city"]) \
-                             .arg(QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()) \
-                             .arg(QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()) \
-                             .arg(aConference["days"]) \
-                             .arg(-QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0))) \
-                             .arg(-QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
-
-            QString query = QString("INSERT INTO CONFERENCE (title,subtitle,venue,city,start,end,days,day_change,timeslot_duration) VALUES (%1)").arg(values);
-            QSqlQuery result (query, db);
-            aConference["id"] = result.lastInsertId().toString(); // 'id' is assigned automatically
-
-            if(!AppSettings::confId()) // default conf Id isn't set yet => set it up
-                AppSettings::setConfId(confId);
+            QSqlQuery query(db);
+            query.prepare("INSERT INTO CONFERENCE (title,url,subtitle,venue,city,start,end,days,"
+                                                    "day_change,timeslot_duration,active) "
+                            " VALUES (:title,:url,:subtitle,:venue,:city,:start,:end,:days,"
+                                                    ":day_change,:timeslot_duration,:active)");
+            foreach (QString prop_name, (QList<QString>() << "title" << "url" << "subtitle" << "venue" << "city" << "days")) {
+                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(":day_change", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
+            query.bindValue(":active", confsList.count() > 0 ? 0 : 1);
+            query.exec();
+            aConference["id"] = query.lastInsertId().toString(); // 'id' is assigned automatically
         }
     }
 }
@@ -128,34 +145,65 @@ void SqlEngine::addEventToDB(QHash<QString,QString> &aEvent)
             trackId = track.insert();
             /*qDebug() << QString("DEBUG: Track %1 added to DB").arg(name);*/
         }
-        QDateTime startDateTime = QDateTime(QDate::fromString(aEvent["date"],DATE_FORMAT),QTime::fromString(aEvent["start"],TIME_FORMAT));
-        QString values = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7', ? , ? , ? , ? , ? , '%8', '%9'") \
-                         .arg(aEvent["conference_id"]) \
-                         .arg(aEvent["id"]) \
-                         .arg(QString::number(startDateTime.toTime_t())) \
-                         .arg(-QTime::fromString(aEvent["duration"],TIME_FORMAT).secsTo(QTime(0,0))) \
-                         .arg(trackId) \
-                         .arg(aEvent["type"]) \
-                         .arg(aEvent["language"]) \
-                         .arg("0") \
-                         .arg("0");
-
-        QString query =
-            QString("INSERT INTO EVENT (xid_conference, id, start, duration, xid_track, type, language, tag, title, subtitle, abstract, description, favourite, alarm) VALUES (%1)")
-            .arg(values);
+        QDateTime startDateTime;
+        startDateTime.setTimeSpec(Qt::UTC);
+        startDateTime = QDateTime(QDate::fromString(aEvent["date"],DATE_FORMAT),QTime::fromString(aEvent["start"],TIME_FORMAT),Qt::UTC);
+        qDebug() << "startDateTime: " << startDateTime.toString();
+
+        bool event_exists = false;
+        {
+            QSqlQuery check_event_query;
+            check_event_query.prepare("SELECT * FROM EVENT WHERE xid_conference = :xid_conference AND id = :id");
+            check_event_query.bindValue(":xid_conference", aEvent["conference_id"]);
+            check_event_query.bindValue(":id", aEvent["id"]);
+            if (!check_event_query.exec()) {
+                qWarning() << "check event failed, conference id:" << aEvent["xid_conference"]
+                        << "event id:" << aEvent["id"]
+                        << "error:" << check_event_query.lastError()
+                        ;
+                return;
+            }
+            if (check_event_query.isActive() and check_event_query.isSelect() and check_event_query.next()) {
+                event_exists = true;
+            }
+        }
 
         QSqlQuery result;
-        result.prepare(query);
-        result.bindValue(0,aEvent["tag"]);
-        result.bindValue(1,aEvent["title"]);
-        result.bindValue(2,aEvent["subtitle"]);
-        result.bindValue(3,aEvent["abstract"]);
-        result.bindValue(4,aEvent["description"]);
-        result.exec();
+        if (event_exists) {
+            result.prepare("UPDATE EVENT SET"
+                            " start = :start"
+                            ", duration = :duration"
+                            ", xid_track = :xid_track"
+                            ", type = :type"
+                            ", language = :language"
+                            ", tag = :tag"
+                            ", title = :title"
+                            ", subtitle = :subtitle"
+                            ", abstract = :abstract"
+                            ", description = :description"
+                                " WHERE id = :id AND xid_conference = :xid_conference");
+        } else {
+            result.prepare("INSERT INTO EVENT "
+                            " (xid_conference, id, start, duration, xid_track, type, "
+                                " language, tag, title, subtitle, abstract, description) "
+                            " VALUES (:xid_conference, :id, :start, :duration, :xid_track, :type, "
+                                ":language, :tag, :title, :subtitle, :abstract, :description)");
+        }
+        result.bindValue(":xid_conference", aEvent["conference_id"]);
+        result.bindValue(":start", QString::number(startDateTime.toTime_t()));
+        result.bindValue(":duration", -QTime::fromString(aEvent["duration"],TIME_FORMAT).secsTo(QTime(0,0)));
+        result.bindValue(":xid_track", trackId);
+        static const QList<QString> props = QList<QString>()
+            << "id" << "type" << "language" << "tag" << "title" << "subtitle" << "abstract" << "description";
+        foreach (QString prop_name, props) {
+            result.bindValue(QString(":") + prop_name, aEvent[prop_name]);
+        }
+        if (!result.exec()) {
+            qWarning() << "event insert/update failed:" << result.lastError();
+        }
     }
 }
 
-
 void SqlEngine::addPersonToDB(QHash<QString,QString> &aPerson)
 {
     QSqlDatabase db = QSqlDatabase::database();
@@ -222,93 +270,6 @@ void SqlEngine::addLinkToDB(QHash<QString,QString> &aLink)
     }
 }
 
-bool SqlEngine::createTables(QSqlDatabase &aDatabase)
-{
-    bool result = aDatabase.open();
-
-    if (aDatabase.isValid() && aDatabase.isOpen())
-    {
-        QSqlQuery query(aDatabase);
-
-        query.exec("CREATE TABLE CONFERENCE ( "
-            "id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL, "
-            "title VARCHAR UNIQUE NOT NULL, "
-            "subtitle VARCHAR, "
-            "venue VARCHAR, "
-            "city VARCHAR NOT NULL, "
-            "start INTEGER NOT NULL, "
-            "end INTEGER NOT NULL, "
-            "days INTEGER, "
-            "day_change INTEGER, "
-            "timeslot_duration INTEGER);");
-
-        query.exec("CREATE TABLE TRACK ( "
-            "id INTEGER  PRIMARY KEY AUTOINCREMENT  NOT NULL, "
-            "name VARCHAR UNIQUE NOT NULL );");
-
-        query.exec("CREATE TABLE ROOM ( "
-            "id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL, "
-            "name VARCHAR UNIQUE NOT NULL, "
-            "picture VARCHAR NOT NULL);");
-
-        query.exec("CREATE TABLE PERSON ( "
-            "id INTEGER PRIMARY KEY  NOT NULL, "
-            "name VARCHAR UNIQUE NOT NULL);");
-
-        query.exec("CREATE TABLE EVENT ( "
-            "xid_conference INTEGER  NOT NULL, "
-            "id INTEGER NOT NULL, "
-            "start INTEGER NOT NULL, "
-            "duration INTEGER NOT NULL, "
-            "xid_track INTEGER NOT NULL REFERENCES TRACK(id), "
-            "type VARCHAR, "
-            "language VARCHAR, "
-            "tag VARCHAR,title VARCHAR NOT NULL, "
-            "subtitle VARCHAR, "
-            "abstract VARCHAR, "
-            "description VARCHAR, "
-            "favourite INTEGER DEFAULT 0, "
-            "alarm INTEGER DEFAULT 0, "
-            "PRIMARY KEY (xid_conference,id), "
-            "FOREIGN KEY(xid_conference) REFERENCES CONFERENCE(id), "
-            "FOREIGN KEY(xid_track) REFERENCES TRACK(id));");
-
-        query.exec("CREATE TABLE EVENT_PERSON ( "
-            "xid_conference INTEGER NOT NULL, "
-            "xid_event INTEGER NOT NULL, "
-            "xid_person INTEGER NOT NULL, "
-            "UNIQUE ( xid_conference, xid_event, xid_person ) ON CONFLICT IGNORE, "
-            "FOREIGN KEY(xid_conference) REFERENCES CONFERENCE(id), "
-            "FOREIGN KEY(xid_event) REFERENCES EVENT(id), "
-            "FOREIGN KEY(xid_person) REFERENCES PERSON(id));");
-
-        query.exec("CREATE TABLE EVENT_ROOM ( "
-            "xid_conference INTEGER NOT NULL, "
-            "xid_event INTEGER NOT NULL, "
-            "xid_room INTEGER NOT NULL, "
-            "UNIQUE ( xid_conference, xid_event, xid_room ) ON CONFLICT IGNORE, "
-            "FOREIGN KEY(xid_conference) REFERENCES CONFERENCE(id), "
-            "FOREIGN KEY(xid_event) REFERENCES EVENT(id), "
-            "FOREIGN KEY(xid_room) REFERENCES ROOM(id));");
-
-        query.exec("CREATE TABLE LINK ( "
-            "id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
-            "xid_conference INTEGER NOT NULL, "
-            "xid_event INTEGER NOT NULL, "
-            "name VARCHAR, "
-            "url VARCHAR NOT NULL, "
-            "UNIQUE ( xid_conference, xid_event, url ) ON CONFLICT IGNORE, "
-            "FOREIGN KEY(xid_conference) REFERENCES CONFERENCE(id), "
-            "FOREIGN KEY(xid_event) REFERENCES EVENT(id));");
-    }
-    else
-    {
-        //LOG_WARNING("Database is not opened");
-    }
-
-    return result;
-}
-
 int SqlEngine::searchEvent(int aConferenceId, const QHash<QString,QString> &aColumns, const QString &aKeyword)
 {
     QSqlDatabase db = QSqlDatabase::database();
@@ -322,14 +283,14 @@ int SqlEngine::searchEvent(int aConferenceId, const QHash<QString,QString> &aCol
     // CREATE
     execQuery( db, "CREATE TEMP TABLE SEARCH_EVENT ( xid_conference INTEGER  NOT NULL, id INTEGER NOT NULL );");
     // INSERT
-    QString query = QString("INSERT INTO SEARCH_EVENT ( xid_conference, id) "
+    QString query = QString("INSERT INTO SEARCH_EVENT ( xid_conference, id ) "
                 "SELECT EVENT.xid_conference, EVENT.id FROM EVENT ");
     if( aColumns.contains("ROOM") ){
-        query += "INNER JOIN EVENT_ROOM ON (EVENT.xid_conference = EVENT_ROOM.xid_conference AND EVENT.id = EVENT_ROOM.xid_event ) ";
+        query += "INNER JOIN EVENT_ROOM ON ( EVENT.xid_conference = EVENT_ROOM.xid_conference AND EVENT.id = EVENT_ROOM.xid_event ) ";
         query += "INNER JOIN ROOM ON ( EVENT_ROOM.xid_room = ROOM.id ) ";
     }
     if( aColumns.contains("PERSON") ){
-        query += "INNER JOIN EVENT_PERSON ON (EVENT.xid_conference = EVENT_PERSON.xid_conference AND EVENT.id = EVENT_PERSON.xid_event ) ";
+        query += "INNER JOIN EVENT_PERSON ON ( EVENT.xid_conference = EVENT_PERSON.xid_conference AND EVENT.id = EVENT_PERSON.xid_event ) ";
         query += "INNER JOIN PERSON ON ( EVENT_PERSON.xid_person = PERSON.id ) ";
     }
     query += QString("WHERE EVENT.xid_conference = %1 AND (").arg( aConferenceId );
@@ -344,13 +305,49 @@ int SqlEngine::searchEvent(int aConferenceId, const QHash<QString,QString> &aCol
 
     execQuery( db, query );
 
-    //TODO: retun number of rows from SEARCH_EVENT
     return 1;
 }
 
+bool SqlEngine::beginTransaction()
+{
+    QSqlDatabase db = QSqlDatabase::database();
+
+    return execQuery(db, "BEGIN IMMEDIATE TRANSACTION");
+}
+
+bool SqlEngine::commitTransaction()
+{
+    QSqlDatabase db = QSqlDatabase::database();
+
+    return execQuery(db, "COMMIT");
+}
+
+void SqlEngine::deleteConference(int id)
+{
+    QSqlDatabase db = QSqlDatabase::database();
+
+    if ( !db.isValid() || !db.isOpen()) {
+        return;
+    }
+
+    beginTransaction();
+
+    QHash<QString, QVariant> params;
+    params["xid_conference"] = id;
+    execQueryWithParameter(db, "DELETE FROM LINK WHERE xid_conference = :xid_conference", params);
+    execQueryWithParameter(db, "DELETE FROM EVENT_ROOM WHERE xid_conference = :xid_conference", params);
+    execQueryWithParameter(db, "DELETE FROM EVENT_PERSON WHERE xid_conference = :xid_conference", params);
+    execQueryWithParameter(db, "DELETE FROM EVENT WHERE xid_conference = :xid_conference", params);
+    execQueryWithParameter(db, "DELETE FROM CONFERENCE WHERE id = :xid_conference", params);
+    execQuery(db, "DELETE FROM ROOM WHERE NOT EXISTS(SELECT * FROM EVENT_ROOM WHERE xid_room = ROOM.id)");
+    execQuery(db, "DELETE FROM PERSON WHERE NOT EXISTS(SELECT * FROM EVENT_PERSON WHERE xid_person = PERSON.id)");
+
+    commitTransaction();
+}
+
 bool SqlEngine::execQuery(QSqlDatabase &aDatabase, const QString &aQuery)
 {
-    qDebug() << "\nSQL: " << aQuery;
+    //qDebug() << "\nSQL: " << aQuery;
 
     QSqlQuery sqlQuery(aDatabase);
     if( !sqlQuery.exec(aQuery) ){
@@ -358,7 +355,37 @@ bool SqlEngine::execQuery(QSqlDatabase &aDatabase, const QString &aQuery)
        return false;
     }
     else{
-       qDebug() << "SQL OK.\n";
+       //qDebug() << "SQL OK.\n";
+       return true;
+    }
+}
+
+bool SqlEngine::execQueryWithParameter(QSqlDatabase &aDatabase, const QString &aQuery, const QHash<QString, QVariant>& params)
+{
+    qDebug() << "SQL:" << aQuery << "params:" << params;
+
+    QSqlQuery sqlQuery(aDatabase);
+    sqlQuery.prepare(aQuery);
+    foreach (QString param_key, params.keys()) {
+        sqlQuery.bindValue(param_key, params[param_key]);
+    }
+    if( !sqlQuery.exec() ){
+       qDebug() << "SQL ERR: " << sqlQuery.lastError().number() << ", " << sqlQuery.lastError().text();
+       return false;
+    }
+    else{
+       //qDebug() << "SQL OK.\n";
        return true;
     }
 }
+
+void SqlEngine::checkConferenceMap(QSqlDatabase &aDatabase)
+{
+    QSqlQuery sqlQuery(aDatabase);
+    sqlQuery.prepare("SELECT map FROM conference");
+    if (!sqlQuery.exec()) {
+        qWarning() << "column conference.map is missing; adding";
+        execQuery(aDatabase, "ALTER TABLE conference ADD COLUMN map VARCHAR")
+         and execQuery(aDatabase, "UPDATE conference SET map = ':/maps/campus.png' WHERE title = 'FOSDEM 2010'");
+    }
+}