05fc3aef53
Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
// Copyright (C) 2020 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
|
|
|
|
#ifndef INITDB_H
|
|
#define INITDB_H
|
|
|
|
#include <QtSql>
|
|
|
|
void addBook(QSqlQuery &q, const QString &title, int year, const QVariant &authorId,
|
|
const QVariant &genreId, int rating)
|
|
{
|
|
q.addBindValue(title);
|
|
q.addBindValue(year);
|
|
q.addBindValue(authorId);
|
|
q.addBindValue(genreId);
|
|
q.addBindValue(rating);
|
|
q.exec();
|
|
}
|
|
|
|
QVariant addGenre(QSqlQuery &q, const QString &name)
|
|
{
|
|
q.addBindValue(name);
|
|
q.exec();
|
|
return q.lastInsertId();
|
|
}
|
|
|
|
QVariant addAuthor(QSqlQuery &q, const QString &name, QDate birthdate)
|
|
{
|
|
q.addBindValue(name);
|
|
q.addBindValue(birthdate);
|
|
q.exec();
|
|
return q.lastInsertId();
|
|
}
|
|
|
|
const auto BOOKS_SQL = QLatin1String(R"(
|
|
create table books(id integer primary key, title varchar, author integer,
|
|
genre integer, year integer, rating integer)
|
|
)");
|
|
|
|
const auto AUTHORS_SQL = QLatin1String(R"(
|
|
create table authors(id integer primary key, name varchar, birthdate date)
|
|
)");
|
|
|
|
const auto GENRES_SQL = QLatin1String(R"(
|
|
create table genres(id integer primary key, name varchar)
|
|
)");
|
|
|
|
const auto INSERT_AUTHOR_SQL = QLatin1String(R"(
|
|
insert into authors(name, birthdate) values(?, ?)
|
|
)");
|
|
|
|
const auto INSERT_BOOK_SQL = QLatin1String(R"(
|
|
insert into books(title, year, author, genre, rating)
|
|
values(?, ?, ?, ?, ?)
|
|
)");
|
|
|
|
const auto INSERT_GENRE_SQL = QLatin1String(R"(
|
|
insert into genres(name) values(?)
|
|
)");
|
|
|
|
QSqlError initDb()
|
|
{
|
|
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
|
|
db.setDatabaseName(":memory:");
|
|
|
|
if (!db.open())
|
|
return db.lastError();
|
|
|
|
QStringList tables = db.tables();
|
|
if (tables.contains("books", Qt::CaseInsensitive)
|
|
&& tables.contains("authors", Qt::CaseInsensitive))
|
|
return QSqlError();
|
|
|
|
QSqlQuery q;
|
|
if (!q.exec(BOOKS_SQL))
|
|
return q.lastError();
|
|
if (!q.exec(AUTHORS_SQL))
|
|
return q.lastError();
|
|
if (!q.exec(GENRES_SQL))
|
|
return q.lastError();
|
|
|
|
if (!q.prepare(INSERT_AUTHOR_SQL))
|
|
return q.lastError();
|
|
QVariant asimovId = addAuthor(q, QLatin1String("Isaac Asimov"), QDate(1920, 2, 1));
|
|
QVariant greeneId = addAuthor(q, QLatin1String("Graham Greene"), QDate(1904, 10, 2));
|
|
QVariant pratchettId = addAuthor(q, QLatin1String("Terry Pratchett"), QDate(1948, 4, 28));
|
|
|
|
if (!q.prepare(INSERT_GENRE_SQL))
|
|
return q.lastError();
|
|
QVariant sfiction = addGenre(q, QLatin1String("Science Fiction"));
|
|
QVariant fiction = addGenre(q, QLatin1String("Fiction"));
|
|
QVariant fantasy = addGenre(q, QLatin1String("Fantasy"));
|
|
|
|
if (!q.prepare(INSERT_BOOK_SQL))
|
|
return q.lastError();
|
|
addBook(q, QLatin1String("Foundation"), 1951, asimovId, sfiction, 3);
|
|
addBook(q, QLatin1String("Foundation and Empire"), 1952, asimovId, sfiction, 4);
|
|
addBook(q, QLatin1String("Second Foundation"), 1953, asimovId, sfiction, 3);
|
|
addBook(q, QLatin1String("Foundation's Edge"), 1982, asimovId, sfiction, 3);
|
|
addBook(q, QLatin1String("Foundation and Earth"), 1986, asimovId, sfiction, 4);
|
|
addBook(q, QLatin1String("Prelude to Foundation"), 1988, asimovId, sfiction, 3);
|
|
addBook(q, QLatin1String("Forward the Foundation"), 1993, asimovId, sfiction, 3);
|
|
addBook(q, QLatin1String("The Power and the Glory"), 1940, greeneId, fiction, 4);
|
|
addBook(q, QLatin1String("The Third Man"), 1950, greeneId, fiction, 5);
|
|
addBook(q, QLatin1String("Our Man in Havana"), 1958, greeneId, fiction, 4);
|
|
addBook(q, QLatin1String("Guards! Guards!"), 1989, pratchettId, fantasy, 3);
|
|
addBook(q, QLatin1String("Night Watch"), 2002, pratchettId, fantasy, 3);
|
|
addBook(q, QLatin1String("Going Postal"), 2004, pratchettId, fantasy, 3);
|
|
|
|
return QSqlError();
|
|
}
|
|
|
|
#endif
|