src/sql/schedulexmlparser.cpp

   1 /*
   2  * Copyright (C) 2010 Ixonos Plc.
   3  * Copyright (C) 2011 Philipp Spitzer, gregor herrmann
   4  *
   5  * This file is part of ConfClerk.
   6  *
   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)
  10  * any later version.
  11  *
  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
  15  * more details.
  16  *
  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/>.
  19  */
  20
  21 #include <QDomDocument>
  22 #include <QHash>
  23
  24 #include "schedulexmlparser.h"
  25 #include "sqlengine.h"
  26 #include "../gui/errormessage.h"
  27
  28 #include <QDebug>
  29
  30 ScheduleXmlParser::ScheduleXmlParser(QObject *aParent)
  31     : QObject(aParent)
  32 {
  33 }
  34
  35 void ScheduleXmlParser::parseData(const QByteArray &aData, const QString& url)
  36 {
  37     QDomDocument document;
  38     QString xml_error;
  39     if (!document.setContent (aData, false, &xml_error)) {
  40         error_message("Could not parse schedule: " + xml_error);
  41         return;
  42     }
  43
  44     QDomElement scheduleElement = document.firstChildElement("schedule");
  45
  46     SqlEngine::beginTransaction();
  47
  48     int confId = 0;
  49     QString conference_title;
  50     if (!scheduleElement.isNull())
  51     {
  52         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
  53         if (!conferenceElement.isNull())
  54         {
  55             QHash<QString,QString> conference;
  56             conference["id"] = QString::number(0); // conference ID is assigned automatically, or obtained from the DB
  57             conference["title"] = conferenceElement.firstChildElement("title").text();
  58             conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
  59             conference["venue"] = conferenceElement.firstChildElement("venue").text();
  60             conference["city"] = conferenceElement.firstChildElement("city").text();
  61             conference["start"] = conferenceElement.firstChildElement("start").text(); // date
  62             conference["end"] = conferenceElement.firstChildElement("end").text(); // date
  63             conference["days"] = conferenceElement.firstChildElement("days").text(); // int
  64             conference["day_change"] = conferenceElement.firstChildElement("day_change").text(); // time
  65             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
  66             conference["url"] = url;
  67             SqlEngine::addConferenceToDB(conference);
  68             confId = conference["id"].toInt();
  69             conference_title = conference["title"];
  70             emit(parsingScheduleBegin());
  71         }
  72
  73         // we need to get count of all events in order to emit 'progressStatus' signal
  74         int totalEventsCount = scheduleElement.elementsByTagName("event").count();
  75
  76         // parsing day elements
  77         int currentEvent = 0; // hold global idx of processed event
  78         QDomNodeList dayList = scheduleElement.elementsByTagName("day");
  79         for (int i=0; i<dayList.count(); i++)
  80         {
  81             QDomElement dayElement = dayList.at(i).toElement();
  82             //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
  83             //int dayIndex = dayElement.attribute("index").toInt();
  84
  85             // parsing room elements
  86             QDomNodeList roomList = dayElement.elementsByTagName("room");
  87             for (int i=0; i<roomList.count(); i++)
  88             {
  89                 QDomElement roomElement = roomList.at(i).toElement();
  90                 // roomElement has to be 'Element' and it has to have 'name' attribute
  91                 // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
  92                 if(roomElement.hasAttribute("name"))
  93                 {
  94                     // parsing event elements
  95                     QDomNodeList eventList = roomElement.elementsByTagName("event");
  96                     for (int i=0; i<eventList.count(); i++)
  97                     {
  98                         currentEvent++;
  99                         QDomElement eventElement = eventList.at(i).toElement();
 100
 101                         // now we have all info to create ROOM/EVENT_ROOM record(s)
 102                         QHash<QString,QString> room;
 103                         room["name"] = roomElement.attribute("name");
 104                         room["event_id"] = eventElement.attribute("id");
 105                         room["conference_id"] = QString::number(confId,10);
 106                         room["picture"] = ""; // TODO: implement some mapping to assign correct picture to specified room_name
 107                         SqlEngine::addRoomToDB(room);
 108
 109                         // process event's nodes
 110                         QHash<QString,QString> event;
 111                         event["id"] = eventElement.attribute("id");;
 112                         event["conference_id"] = QString::number(confId, 10);
 113                         event["start"] = eventElement.firstChildElement("start").text(); // time eg. 10:00
 114                         event["date"] = dayElement.attribute("date"); // date eg. 2009-02-07
 115                         event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
 116                         event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
 117                         event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
 118                         event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
 119                         event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
 120                         event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
 121                         event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
 122                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
 123                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
 124                         event["description"] = eventElement.firstChildElement("description").text(); // string
 125                         SqlEngine::addEventToDB(event);
 126                         // process persons' nodes
 127                         QList<QString> persons;
 128                         QDomElement personsElement = eventElement.firstChildElement("persons");
 129                         QDomNodeList personList = personsElement.elementsByTagName("person");
 130                         for(int i = 0;i < personList.count();i++){
 131                             QHash<QString,QString> person;
 132                             person["id"] = personList.at(i).toElement().attribute("id");
 133                             person["name"] = personList.at(i).toElement().text();
 134                             person["event_id"] = eventElement.attribute("id");
 135                             person["conference_id"] = QString::number(confId, 10);
 136                             //qDebug() << "adding Person: " << person["name"];
 137                             SqlEngine::addPersonToDB(person);
 138                         }
 139                         // process links' nodes
 140                         QDomElement linksElement = eventElement.firstChildElement("links");
 141                         QDomNodeList linkList = linksElement.elementsByTagName("link");
 142                         for(int i = 0;i < linkList.count();i++){
 143                             QHash<QString,QString> link;
 144                             link["name"] = linkList.at(i).toElement().text();
 145                             link["url"] = linkList.at(i).toElement().attribute("href");
 146                             link["event_id"] = eventElement.attribute("id");
 147                             link["conference_id"] = QString::number(confId, 10);
 148                             SqlEngine::addLinkToDB(link);
 149                         }
 150                         // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
 151                         int status = currentEvent * 100 / totalEventsCount;
 152                         progressStatus(status);
 153                     } // parsing event elements
 154                 }
 155             } // parsing room elements
 156         } // parsing day elements
 157     } // schedule element
 158     SqlEngine::commitTransaction();
 159     if (!conference_title.isNull()) {
 160         emit parsingScheduleEnd(conference_title);
 161     } else {
 162         error_message("Could not parse schedule");
 163     }
 164 }
 165