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    41 

    42 #ifndef DATABASE_H

    43 #define DATABASE_H

    44 

    45 #include <QMessageBox>

    46 #include <QSqlDatabase>

    47 #include <QSqlError>

    48 #include <QSqlQuery>

    49 

    50 static bool createConnection()

    51 {

    52     QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");

    53     db.setDatabaseName(":memory:");

    54     if (!db.open()) {

    55         QMessageBox::critical(0, qApp->tr("Cannot open database"),

    56             qApp->tr("Unable to establish a database connection.\n"

    57                      "This example needs SQLite support. Please read "

    58                      "the Qt SQL driver documentation for information how "

    59                      "to build it.\n\n"

    60                      "Click Cancel to exit."), QMessageBox::Cancel);

    61         return false;

    62     }

    63 

    64     QSqlQuery query;

    65 

    66     query.exec("create table artists (id int primary key, "

    67                                      "artist varchar(40), "

    68                                      "albumcount int)");

    69 

    70     query.exec("insert into artists values(0, '<all>', 0)");

    71     query.exec("insert into artists values(1, 'Ane Brun', 2)");

    72     query.exec("insert into artists values(2, 'Thomas Dybdahl', 3)");

    73     query.exec("insert into artists values(3, 'Kaizers Orchestra', 3)");

    74 

    75     query.exec("create table albums (albumid int primary key, "

    76                                      "title varchar(50), "

    77                                      "artistid int, "

    78                                      "year int)");

    79 

    80     query.exec("insert into albums values(1, 'Spending Time With Morgan', 1, "

    81                        "2003)");

    82     query.exec("insert into albums values(2, 'A Temporary Dive', 1, 2005)");

    83     query.exec("insert into albums values(3, '...The Great October Sound', 2, "

    84                        "2002)");

    85     query.exec("insert into albums values(4, 'Stray Dogs', 2, 2003)");

    86     query.exec("insert into albums values(5, "

    87         "'One day you`ll dance for me, New York City', 2, 2004)");

    88     query.exec("insert into albums values(6, 'Ompa Til Du D\xf8r', 3, 2001)");

    89     query.exec("insert into albums values(7, 'Evig Pint', 3, 2002)");

    90     query.exec("insert into albums values(8, 'Maestro', 3, 2005)");

    91 

    92     return true;

    93 }

    94 

    95 #endif

    96 

    97