database.h Example File

masterdetail/database.h

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  #ifndef DATABASE_H
  #define DATABASE_H

  #include <QMessageBox>
  #include <QSqlDatabase>
  #include <QSqlError>
  #include <QSqlQuery>

  static bool createConnection()
  {
      QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
      db.setDatabaseName(":memory:");
      if (!db.open()) {
          QMessageBox::critical(0, qApp->tr("Cannot open database"),
              qApp->tr("Unable to establish a database connection.\n"
                       "This example needs SQLite support. Please read "
                       "the Qt SQL driver documentation for information how "
                       "to build it.\n\n"
                       "Click Cancel to exit."), QMessageBox::Cancel);
          return false;
      }

      QSqlQuery query;

      query.exec("create table artists (id int primary key, "
                                       "artist varchar(40), "
                                       "albumcount int)");

      query.exec("insert into artists values(0, '<all>', 0)");
      query.exec("insert into artists values(1, 'Ane Brun', 2)");
      query.exec("insert into artists values(2, 'Thomas Dybdahl', 3)");
      query.exec("insert into artists values(3, 'Kaizers Orchestra', 3)");

      query.exec("create table albums (albumid int primary key, "
                                       "title varchar(50), "
                                       "artistid int, "
                                       "year int)");

      query.exec("insert into albums values(1, 'Spending Time With Morgan', 1, "
                         "2003)");
      query.exec("insert into albums values(2, 'A Temporary Dive', 1, 2005)");
      query.exec("insert into albums values(3, '...The Great October Sound', 2, "
                         "2002)");
      query.exec("insert into albums values(4, 'Stray Dogs', 2, 2003)");
      query.exec("insert into albums values(5, "
          "'One day you`ll dance for me, New York City', 2, 2004)");
      query.exec("insert into albums values(6, 'Ompa Til Du D\xc3\xb8r', 3, 2001)");
      query.exec("insert into albums values(7, 'Evig Pint', 3, 2002)");
      query.exec("insert into albums values(8, 'Maestro', 3, 2005)");

      return true;
  }

  #endif