use transactions to make import faster
[toast/confclerk.git] / src / sql / schedulexmlparser.cpp
index 01ddeb5..8ce0a68 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 <QDomDocument>
 #include <QHash>
 
 #include <QDomDocument>
 #include <QHash>
@@ -12,18 +30,18 @@ ScheduleXmlParser::ScheduleXmlParser(QObject *aParent)
 {
 }
 
 {
 }
 
-void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
+int ScheduleXmlParser::parseData(const QByteArray &aData)
 {
 {
-    Q_ASSERT(NULL != aDBEngine);
-
     QDomDocument document;
     document.setContent (aData, false);
 
     QDomElement scheduleElement = document.firstChildElement("schedule");
 
     QDomDocument document;
     document.setContent (aData, false);
 
     QDomElement scheduleElement = document.firstChildElement("schedule");
 
+    SqlEngine::beginTransaction();
+
+    int confId = 0;
     if (!scheduleElement.isNull())
     {
     if (!scheduleElement.isNull())
     {
-        int confId = 0;
         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
         if (!conferenceElement.isNull())
         {
         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
         if (!conferenceElement.isNull())
         {
@@ -38,7 +56,7 @@ void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
             conference["days"] = conferenceElement.firstChildElement("days").text(); // int
             conference["day_change"] = conferenceElement.firstChildElement("day_change").text(); // time
             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
             conference["days"] = conferenceElement.firstChildElement("days").text(); // int
             conference["day_change"] = conferenceElement.firstChildElement("day_change").text(); // time
             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
-            aDBEngine->addConferenceToDB(conference);
+            SqlEngine::addConferenceToDB(conference);
             confId = conference["id"].toInt();
             emit(parsingSchedule(conference["title"]));
         }
             confId = conference["id"].toInt();
             emit(parsingSchedule(conference["title"]));
         }
@@ -77,7 +95,7 @@ void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
                         room["event_id"] = eventElement.attribute("id");
                         room["conference_id"] = QString::number(confId,10);
                         room["picture"] = "NOT DEFINED YET"; // TODO: implement some mapping to assign correct picture to specified room_name
                         room["event_id"] = eventElement.attribute("id");
                         room["conference_id"] = QString::number(confId,10);
                         room["picture"] = "NOT DEFINED YET"; // TODO: implement some mapping to assign correct picture to specified room_name
-                        aDBEngine->addRoomToDB(room);
+                        SqlEngine::addRoomToDB(room);
 
                         // process event's nodes
                         QHash<QString,QString> event;
 
                         // process event's nodes
                         QHash<QString,QString> event;
@@ -95,7 +113,7 @@ void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
                         event["description"] = eventElement.firstChildElement("description").text(); // string
                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
                         event["description"] = eventElement.firstChildElement("description").text(); // string
-                        aDBEngine->addEventToDB(event);
+                        SqlEngine::addEventToDB(event);
                         // process persons' nodes
                         QList<QString> persons;
                         QDomElement personsElement = eventElement.firstChildElement("persons");
                         // process persons' nodes
                         QList<QString> persons;
                         QDomElement personsElement = eventElement.firstChildElement("persons");
@@ -107,7 +125,7 @@ void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
                             person["event_id"] = eventElement.attribute("id");
                             person["conference_id"] = QString::number(confId, 10);
                             //qDebug() << "adding Person: " << person["name"];
                             person["event_id"] = eventElement.attribute("id");
                             person["conference_id"] = QString::number(confId, 10);
                             //qDebug() << "adding Person: " << person["name"];
-                            aDBEngine->addPersonToDB(person);
+                            SqlEngine::addPersonToDB(person);
                         }
                         // process links' nodes
                         QDomElement linksElement = eventElement.firstChildElement("links");
                         }
                         // process links' nodes
                         QDomElement linksElement = eventElement.firstChildElement("links");
@@ -118,7 +136,7 @@ void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
                             link["url"] = linkList.at(i).toElement().attribute("href");
                             link["event_id"] = eventElement.attribute("id");
                             link["conference_id"] = QString::number(confId, 10);
                             link["url"] = linkList.at(i).toElement().attribute("href");
                             link["event_id"] = eventElement.attribute("id");
                             link["conference_id"] = QString::number(confId, 10);
-                            aDBEngine->addLinkToDB(link);
+                            SqlEngine::addLinkToDB(link);
                         }
                         // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
                         int status = currentEvent * 100 / totalEventsCount;
                         }
                         // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
                         int status = currentEvent * 100 / totalEventsCount;
@@ -128,5 +146,8 @@ void ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
             } // parsing room elements
         } // parsing day elements
     } // schedule element
             } // parsing room elements
         } // parsing day elements
     } // schedule element
+    SqlEngine::commitTransaction();
+
+    return confId;
 }
 
 }