source: src/sql/sqlengine.cpp @ 72f6fe4

qt5
Last change on this file since 72f6fe4 was 72f6fe4, checked in by pavelpa <pavelpa@…>, 13 years ago

implemented xml parser

  • parsing Schedule
  • Property mode set to 100644
File size: 10.2 KB
Line 
1
2#include <QSqlError>
3#include <QSqlQuery>
4#include <QSqlRecord>
5#include <QVariant>
6#include <QDateTime>
7
8#include <QDir>
9#include "sqlengine.h"
10
11#include <QDebug>
12
13const QString DATE_FORMAT ("yyyy-MM-dd");
14const QString TIME_FORMAT ("hh:mm");
15
16SqlEngine::SqlEngine(QObject *aParent)
17    : QObject(aParent)
18{
19}
20
21SqlEngine::~SqlEngine()
22{
23}
24
25QString SqlEngine::login(const QString &aDatabaseType, const QString &aDatabaseName)
26{
27    QSqlDatabase database = QSqlDatabase::addDatabase(aDatabaseType);
28    database.setDatabaseName(aDatabaseName);
29
30    bool result = false;
31    if(!QFile::exists(aDatabaseName)) // the DB (tables) doesn't exists, and so we have to create one
32    {
33        // creating empty DB + tables
34        // ??? what is the best way of creating new empty DB ???
35        // we can either:
36        //  - create new DB + tables by issuing corresponding queries (used solution)
37        //  - create new DB from resource, which contains empty DB with tables
38        result = createTables(database);
39    }
40
41    database.open();
42
43    //LOG_INFO(QString("Opening '%1' database '%2'").arg(aDatabaseType).arg(aDatabaseName));
44
45    return result ? QString() : database.lastError().text();
46}
47
48void SqlEngine::initialize()
49{
50    QString databaseName;
51    if(!QDir::home().exists(".fosdem"))
52        QDir::home().mkdir(".fosdem");
53    databaseName = QDir::homePath() + "/.fosdem/" + "fosdem.sqlite";
54
55    login("QSQLITE",databaseName);
56}
57
58void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference)
59{
60    QSqlDatabase db = QSqlDatabase::database();
61
62    if (db.isValid() && db.isOpen())
63    {
64        QString values = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7', '%8', '%9', '%10'") \
65                         .arg(aConference["id"]) \
66                         .arg(aConference["title"]) \
67                         .arg(aConference["subtitle"]) \
68                         .arg(aConference["venue"]) \
69                         .arg(aConference["city"]) \
70                         .arg(aConference["start"]) \
71                         .arg(aConference["end"]) \
72                         .arg(aConference["days"]) \
73                         .arg(aConference["day_change"]) \
74                         .arg(aConference["timeslot_duration"]);
75
76        QString query = QString("INSERT INTO CONFERENCE (id,title,subtitle,venue,city,start,end,days,day_change,timeslot_duration) VALUES (%1)").arg(values);
77        QSqlQuery result (query, db);
78        //LOG_AUTOTEST(query);
79    }
80}
81
82void SqlEngine::addEventToDB(QHash<QString,QString> &aEvent)
83{
84    //LOG_DEBUG(QString("Adding event '%1' to DB").arg(*aEvent));
85
86    QSqlDatabase db = QSqlDatabase::database();
87
88    if (db.isValid() && db.isOpen())
89    {
90        // The items of the Event are divided into the two tables EVENT and VIRTUAL_EVENT
91        // VIRTUAL_EVENT is for Full-Text-Serach Support
92        QTime duration = QTime::fromString(aEvent["duration"],TIME_FORMAT);
93        QDateTime startDateTime = QDateTime(QDate::fromString(aEvent["date"],DATE_FORMAT),QTime::fromString(aEvent["start"],TIME_FORMAT));
94        QString values = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7'") \
95                         .arg(aEvent["conference_id"]) \
96                         .arg(aEvent["id"]) \
97                         .arg(QString::number(startDateTime.toTime_t())) \
98                         .arg(QString::number(duration.hour()*3600 + duration.minute()*60 + duration.second())) \
99                         .arg("123456") \
100                         .arg(aEvent["type"]) \
101                         .arg(aEvent["language"]);
102
103        QString query = QString("INSERT INTO EVENT (xid_conference, id, start, duration, xid_activity, type, language) VALUES (%1)").arg(values);
104        QSqlQuery result (query, db);
105        //LOG_AUTOTEST(query);
106
107        // add some(text related) Event's items to VIRTUAL_EVENT table
108        QString values2 = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7'") \
109                          .arg(aEvent["conference_id"]) \
110                          .arg(aEvent["id"]) \
111                          .arg(aEvent["tag"]) \
112                          .arg(aEvent["title"]) \
113                          .arg(aEvent["subtitle"]) \
114                          .arg(aEvent["abstract"]) \
115                          .arg(aEvent["description"]);
116
117        QString query2 = QString("INSERT INTO VIRTUAL_EVENT (xid_conference, id, tag, title, subtitle, abstract, description) VALUES (%1)").arg(values2);
118        QSqlQuery result2 (query2, db);
119        //LOG_AUTOTEST(query2);
120    }
121}
122
123void SqlEngine::addPersonToDB(QHash<QString,QString> &aPerson)
124{
125    QSqlDatabase db = QSqlDatabase::database();
126
127    //TODO: check if the person doesn't exist before inserting
128    if (db.isValid() && db.isOpen())
129    {
130        QString values = QString("'%1', '%2'").arg(aPerson["id"],aPerson["name"]);
131        QString query = QString("INSERT INTO PERSON (id,name) VALUES (%1)").arg(values);
132        QSqlQuery result (query, db);
133        //LOG_AUTOTEST(query);
134
135        values = QString("'%1', '%2', '%3'").arg(aPerson["conference_id"],aPerson["event_id"],aPerson["id"]);
136        query = QString("INSERT INTO EVENT_PERSON (xid_conference,xid_event,xid_person) VALUES (%1)").arg(values);
137        QSqlQuery resultEventPerson (query, db);
138        //LOG_AUTOTEST(query);
139    }
140}
141
142void SqlEngine::addRoomToDB(QHash<QString,QString> &aRoom)
143{
144    QSqlDatabase db = QSqlDatabase::database();
145
146    if (db.isValid() && db.isOpen())
147    {
148        QString queryExist = QString("SELECT id FROM ROOM WHERE name='%1'").arg(aRoom["name"]);
149        QSqlQuery resultExist(queryExist,db);
150        // now we have to check whether ROOM record with 'name' exists or not,
151        // - if it doesn't exist yet, then we have to add that record to 'ROOM' table
152        //   and assign autoincremented 'id' to aRoom
153        // - if it exists, then we need to get its 'id' and assign it to aRoom
154        int roomId = -1;
155        if(resultExist.next()) // ROOM record with 'name' already exists: we need to get its 'id'
156        {
157            roomId = resultExist.value(0).toInt();
158        }
159        else // ROOM record doesn't exist yet, need to create it
160        {
161            QString values = QString("'%1', '%2'").arg(aRoom["name"],aRoom["picture"]);
162            QString query = QString("INSERT INTO ROOM (name,picture) VALUES (%1)").arg(values);
163            QSqlQuery result (query, db);
164            roomId = result.lastInsertId().toInt(); // 'id' is assigned automatically
165            //LOG_AUTOTEST(query);
166        }
167
168        QString values = QString("'%1', '%2', '%3'").arg(aRoom["conference_id"],aRoom["event_id"],QString::number(roomId));
169        QString query = QString("INSERT INTO EVENT_ROOM (xid_conference,xid_event,xid_room) VALUES (%1)").arg(values);
170        QSqlQuery result (query, db);
171        //LOG_AUTOTEST(query);
172    }
173}
174
175void SqlEngine::addLinkToDB(QHash<QString,QString> &aLink)
176{
177    QSqlDatabase db = QSqlDatabase::database();
178
179    //TODO: check if the link doesn't exist before inserting
180    if (db.isValid() && db.isOpen())
181    {
182        QString values = QString("'%1', '%2', '%3', '%4'").arg(aLink["event_id"],aLink["conference_id"],aLink["name"],aLink["url"]);
183        QString query = QString("INSERT INTO LINK (xid_event, xid_conference, name, url) VALUES (%1)").arg(values);
184        QSqlQuery result(query, db);
185        //LOG_AUTOTEST(query);
186    }
187}
188
189bool SqlEngine::createTables(QSqlDatabase &aDatabase)
190{
191    bool result = aDatabase.open();
192
193    if (aDatabase.isValid() && aDatabase.isOpen())
194    {
195        QSqlQuery query(aDatabase);
196
197        query.exec("CREATE TABLE CONFERENCE ( \
198            id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL , \
199            title VARCHAR NOT NULL , \
200            subtitle VARCHAR, \
201            venue VARCHAR, \
202            city VARCHAR NOT NULL , \
203            start DATETIME NOT NULL , \
204            end DATETIME NOT NULL , \
205            days INTEGER, \
206            day_change DATETIME, \
207            timeslot_duration DATETIME)");
208
209        query.exec("CREATE TABLE ACTIVITY ( \
210            id INTEGER  PRIMARY KEY AUTOINCREMENT  NOT NULL , \
211            name VARCHAR NOT NULL )");
212
213        query.exec("CREATE TABLE ROOM ( \
214            id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL , \
215            name VARCHAR NOT NULL , \
216            picture VARCHAR NOT NULL)");
217
218        query.exec("CREATE TABLE PERSON ( \
219            id INTEGER PRIMARY KEY  NOT NULL , \
220            name VARCHAR NOT NULL)");
221
222        query.exec("CREATE TABLE EVENT ( \
223            xid_conference INTEGER  NOT NULL, \
224            id INTEGER NOT NULL , \
225            start INTEGER NOT NULL , \
226            duration INTEGER NOT NULL , \
227            xid_activity INTEGER NOT NULL REFERENCES ACTIVITY(id), \
228            type VARCHAR, \
229            language VARCHAR, \
230            PRIMARY KEY (xid_conference,id), \
231            FOREIGN KEY(xid_conference) REFERENCES CONFERENCE(id) \
232            FOREIGN KEY(xid_activity) REFERENCES ACTIVITY(id))");
233
234        query.exec("CREATE VIRTUAL TABLE VIRTUAL_EVENT using fts3 ( \
235            xid_conference INTEGER  NOT NULL, \
236            id INTEGER NOT NULL , \
237            tag VARCHAR,title VARCHAR NOT NULL , \
238            subtitle VARCHAR, \
239            abstract VARCHAR, \
240            description VARCHAR, \
241            PRIMARY KEY (xid_conference,id))");
242
243        query.exec("CREATE TABLE EVENT_PERSON ( \
244            xid_conference INTEGER NOT NULL , \
245            xid_event INTEGER NOT NULL , \
246            xid_person INTEGER NOT NULL, \
247            FOREIGN KEY(xid_conference, xid_event) REFERENCES EVENT(xid_conference, id), \
248            FOREIGN KEY(xid_person) REFERENCES PERSON(id))");
249
250        query.exec("CREATE TABLE EVENT_ROOM ( \
251            xid_conference INTEGER NOT NULL , \
252            xid_event INTEGER NOT NULL , \
253            xid_room INTEGER NOT NULL, \
254            FOREIGN KEY(xid_conference, xid_event) REFERENCES EVENT(xid_conference, id), \
255            FOREIGN KEY(xid_room) REFERENCES ROOM(id))");
256
257        query.exec("CREATE TABLE LINK ( \
258            id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL, \
259            xid_conference INTEGER NOT NULL, \
260            xid_event INTEGER NOT NULL, \
261            name VARCHAR, \
262            url VARCHAR NOT NULL, \
263            FOREIGN KEY(xid_conference, xid_event) REFERENCES EVENT(xid_conference, id))");
264    }
265    else
266    {
267        //LOG_WARNING("Database is not opened");
268    }
269
270    return result;
271}
272
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