source: src/sql/sqlengine.cpp @ 990afd5

qt5
Last change on this file since 990afd5 was 990afd5, checked in by timkoma <timkoma@…>, 12 years ago

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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    login("QSQLITE",databaseName);
55}
56
57void SqlEngine::addConferenceToDB(QHash<QString,QString> &aConference)
58{
59    QSqlDatabase db = QSqlDatabase::database();
60
61    if (db.isValid() && db.isOpen())
62    {
63        QString values = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7', '%8', '%9', '%10'") \
64                         .arg(aConference["id"]) \
65                         .arg(aConference["title"]) \
66                         .arg(aConference["subtitle"]) \
67                         .arg(aConference["venue"]) \
68                         .arg(aConference["city"]) \
69                         .arg(QDateTime(QDate::fromString(aConference["start"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()) \
70                         .arg(QDateTime(QDate::fromString(aConference["end"],DATE_FORMAT),QTime(0,0),Qt::UTC).toTime_t()) \
71                         .arg(aConference["days"]) \
72                         .arg(-QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0))) \
73                         .arg(-QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
74
75        QString query = QString("INSERT INTO CONFERENCE (id,title,subtitle,venue,city,start,end,days,day_change,timeslot_duration) VALUES (%1)").arg(values);
76        QSqlQuery result (query, db);
77        //LOG_AUTOTEST(query);
78    }
79}
80
81void SqlEngine::addEventToDB(QHash<QString,QString> &aEvent)
82{
83    //LOG_DEBUG(QString("Adding event '%1' to DB").arg(*aEvent));
84
85    QSqlDatabase db = QSqlDatabase::database();
86
87    if (db.isValid() && db.isOpen())
88    {
89        // The items of the Event are divided into the two tables EVENT and VIRTUAL_EVENT
90        // VIRTUAL_EVENT is for Full-Text-Serach Support
91        QDateTime startDateTime = QDateTime(QDate::fromString(aEvent["date"],DATE_FORMAT),QTime::fromString(aEvent["start"],TIME_FORMAT));
92        QString values = QString("'%1', '%2', '%3', '%4', '%5', '%6', '%7', '%8', '%9'") \
93                         .arg(aEvent["conference_id"]) \
94                         .arg(aEvent["id"]) \
95                         .arg(QString::number(startDateTime.toTime_t())) \
96                         .arg(-QTime::fromString(aEvent["duration"],TIME_FORMAT).secsTo(QTime(0,0))) \
97                         .arg("123456") \
98                         .arg(aEvent["type"]) \
99                         .arg(aEvent["language"]) \
100                         .arg("0") \
101                         .arg("0");
102
103        QString query = QString("INSERT INTO EVENT (xid_conference, id, start, duration, xid_activity, type, language, favourite, alarm) 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', ? , ? , ? , ? ") \
109                          .arg(aEvent["conference_id"]) \
110                          .arg(aEvent["id"]) \
111                          .arg(aEvent["tag"]);
112
113        QString query2 = QString("INSERT INTO VIRTUAL_EVENT (xid_conference, id, tag, title, subtitle, abstract, description) VALUES (%1)").arg(values2);
114
115        QSqlQuery result2;
116        result2.prepare(query2);
117        result2.bindValue(0,aEvent["title"]);
118        result2.bindValue(1,aEvent["subtitle"]);
119        result2.bindValue(2,aEvent["abstract"]);
120        result2.bindValue(3,aEvent["description"]);
121        result2.exec();
122        //LOG_AUTOTEST(query2);
123    }
124}
125
126
127void SqlEngine::addPersonToDB(QHash<QString,QString> &aPerson)
128{
129    QSqlDatabase db = QSqlDatabase::database();
130
131    //TODO: check if the person doesn't exist before inserting
132    if (db.isValid() && db.isOpen())
133    {
134        QString values = QString("'%1', '%2'").arg(aPerson["id"],aPerson["name"]);
135        QString query = QString("INSERT INTO PERSON (id,name) VALUES (%1)").arg(values);
136        QSqlQuery result (query, db);
137        //LOG_AUTOTEST(query);
138
139        values = QString("'%1', '%2', '%3'").arg(aPerson["conference_id"],aPerson["event_id"],aPerson["id"]);
140        query = QString("INSERT INTO EVENT_PERSON (xid_conference,xid_event,xid_person) VALUES (%1)").arg(values);
141        QSqlQuery resultEventPerson (query, db);
142        //LOG_AUTOTEST(query);
143    }
144}
145
146void SqlEngine::addRoomToDB(QHash<QString,QString> &aRoom)
147{
148    QSqlDatabase db = QSqlDatabase::database();
149
150    if (db.isValid() && db.isOpen())
151    {
152        QString queryExist = QString("SELECT id FROM ROOM WHERE name='%1'").arg(aRoom["name"]);
153        QSqlQuery resultExist(queryExist,db);
154        // now we have to check whether ROOM record with 'name' exists or not,
155        // - if it doesn't exist yet, then we have to add that record to 'ROOM' table
156        //   and assign autoincremented 'id' to aRoom
157        // - if it exists, then we need to get its 'id' and assign it to aRoom
158        int roomId = -1;
159        if(resultExist.next()) // ROOM record with 'name' already exists: we need to get its 'id'
160        {
161            roomId = resultExist.value(0).toInt();
162        }
163        else // ROOM record doesn't exist yet, need to create it
164        {
165            QString values = QString("'%1', '%2'").arg(aRoom["name"],aRoom["picture"]);
166            QString query = QString("INSERT INTO ROOM (name,picture) VALUES (%1)").arg(values);
167            QSqlQuery result (query, db);
168            roomId = result.lastInsertId().toInt(); // 'id' is assigned automatically
169            //LOG_AUTOTEST(query);
170        }
171
172        QString values = QString("'%1', '%2', '%3'").arg(aRoom["conference_id"],aRoom["event_id"],QString::number(roomId));
173        QString query = QString("INSERT INTO EVENT_ROOM (xid_conference,xid_event,xid_room) VALUES (%1)").arg(values);
174        QSqlQuery result (query, db);
175        //LOG_AUTOTEST(query);
176    }
177}
178
179void SqlEngine::addLinkToDB(QHash<QString,QString> &aLink)
180{
181    QSqlDatabase db = QSqlDatabase::database();
182
183    //TODO: check if the link doesn't exist before inserting
184    if (db.isValid() && db.isOpen())
185    {
186        QString values = QString("'%1', '%2', '%3', '%4'").arg(aLink["event_id"],aLink["conference_id"],aLink["name"],aLink["url"]);
187        QString query = QString("INSERT INTO LINK (xid_event, xid_conference, name, url) VALUES (%1)").arg(values);
188        QSqlQuery result(query, db);
189        //LOG_AUTOTEST(query);
190    }
191}
192
193bool SqlEngine::createTables(QSqlDatabase &aDatabase)
194{
195    bool result = aDatabase.open();
196
197    if (aDatabase.isValid() && aDatabase.isOpen())
198    {
199        QSqlQuery query(aDatabase);
200
201        query.exec("CREATE TABLE CONFERENCE ( \
202            id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL , \
203            title VARCHAR NOT NULL , \
204            subtitle VARCHAR, \
205            venue VARCHAR, \
206            city VARCHAR NOT NULL , \
207            start INTEGER NOT NULL , \
208            end INTEGER NOT NULL , \
209            days INTEGER, \
210            day_change INTEGER, \
211            timeslot_duration INTEGER)");
212
213        query.exec("CREATE TABLE ACTIVITY ( \
214            id INTEGER  PRIMARY KEY AUTOINCREMENT  NOT NULL , \
215            name VARCHAR NOT NULL )");
216
217        query.exec("CREATE TABLE ROOM ( \
218            id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL , \
219            name VARCHAR NOT NULL , \
220            picture VARCHAR NOT NULL)");
221
222        query.exec("CREATE TABLE PERSON ( \
223            id INTEGER PRIMARY KEY  NOT NULL , \
224            name VARCHAR NOT NULL)");
225
226        query.exec("CREATE TABLE EVENT ( \
227            xid_conference INTEGER  NOT NULL, \
228            id INTEGER NOT NULL , \
229            start INTEGER NOT NULL , \
230            duration INTEGER NOT NULL , \
231            xid_activity INTEGER NOT NULL REFERENCES ACTIVITY(id), \
232            type VARCHAR, \
233            language VARCHAR, \
234            favourite INTEGER DEFAULT 0, \
235            alarm INTEGER DEFAULT 0, \
236            PRIMARY KEY (xid_conference,id), \
237            FOREIGN KEY(xid_conference) REFERENCES CONFERENCE(id) \
238            FOREIGN KEY(xid_activity) REFERENCES ACTIVITY(id))");
239
240#ifdef MAEMO
241        // TBD: MAEMO Virtual tables compatibility (waiting for Marek).
242        // MAEMO sqlite Qt driver doesn't provide FTS support by default - use the following HACK
243        query.exec("CREATE TABLE VIRTUAL_EVENT ( \
244            xid_conference INTEGER  NOT NULL, \
245            id INTEGER NOT NULL , \
246            tag VARCHAR,title VARCHAR NOT NULL , \
247            subtitle VARCHAR, \
248            abstract VARCHAR, \
249            description VARCHAR, \
250            PRIMARY KEY (xid_conference,id))");
251#else
252        query.exec("CREATE VIRTUAL TABLE VIRTUAL_EVENT using fts3 ( \
253            xid_conference INTEGER  NOT NULL, \
254            id INTEGER NOT NULL , \
255            tag VARCHAR,title VARCHAR NOT NULL , \
256            subtitle VARCHAR, \
257            abstract VARCHAR, \
258            description VARCHAR, \
259            PRIMARY KEY (xid_conference,id))");
260#endif
261
262        query.exec("CREATE TABLE EVENT_PERSON ( \
263            xid_conference INTEGER NOT NULL , \
264            xid_event INTEGER NOT NULL , \
265            xid_person INTEGER NOT NULL, \
266            FOREIGN KEY(xid_conference, xid_event) REFERENCES EVENT(xid_conference, id), \
267            FOREIGN KEY(xid_person) REFERENCES PERSON(id))");
268
269        query.exec("CREATE TABLE EVENT_ROOM ( \
270            xid_conference INTEGER NOT NULL , \
271            xid_event INTEGER NOT NULL , \
272            xid_room INTEGER NOT NULL, \
273            FOREIGN KEY(xid_conference, xid_event) REFERENCES EVENT(xid_conference, id), \
274            FOREIGN KEY(xid_room) REFERENCES ROOM(id))");
275
276        query.exec("CREATE TABLE LINK ( \
277            id INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL, \
278            xid_conference INTEGER NOT NULL, \
279            xid_event INTEGER NOT NULL, \
280            name VARCHAR, \
281            url VARCHAR NOT NULL, \
282            FOREIGN KEY(xid_conference, xid_event) REFERENCES EVENT(xid_conference, id))");
283    }
284    else
285    {
286        //LOG_WARNING("Database is not opened");
287    }
288
289    return result;
290}
291
292int SqlEngine::searchEvent(int aConferenceId, const QList<QString> &aColumns, const QString &aKeyword)
293{
294    QSqlDatabase db = QSqlDatabase::database();
295
296    if ( !db.isValid() || !db.isOpen())
297        return -1;
298
299    QString query = QString(
300        "DROP TABLE IF EXISTS SEARCH_EVENT;"
301        "CREATE TEMP TABLE SEARCH_EVENT ( xid_conference INTEGER  NOT NULL, id INTEGER NOT NULL );"
302        "INSERT INTO SEARCH_EVENT ( xid_conference, id) "
303            "SELECT xid_conference, id FROM EVENT AS e INNER JOIN VIRTUAL_EVENT AS ve USING (xid_conference, id) "
304            "WHERE xid_conference = %1 AND (").arg( aConferenceId );
305
306    int i = 0;
307    foreach (QString str, aColumns){
308        query += QString("%1 LIKE '\%%2\%' OR ").arg( aColumns.at(i++), aKeyword );
309    }
310    query.chop( QString(" OR ").length() );
311    query += QString(");");
312
313    qDebug() << "\nSQL: " << query;
314
315    db.exec();
316
317    if( db.lastError().isValid() && db.lastError().number() != 0 ){
318        qDebug() << "SQL ERR: " << db.lastError().number() << ", " << db.lastError().text();
319        return 0;
320    }
321    else{
322        qDebug() << "SQL OK.\n";
323        return 1;
324    }
325
326}
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