SOLVED Qt 5.1 ios How to Bundle and use SQLite database in application

mac131

"A very short but complete mini project .pro file & main.cpp would help.
I mean an example, which runs at your computer. I would launch qmake only to get the .xcodeproject directory to test that."

I just start to use QT 5.2 (with iOS even more) a mini exemple project with all files would be great

jraichouni

Hi!

Take the example in the current thread.

The important things to consider are:

.pro file:
@
QT += sql
ios:QTPLUGIN += qsqlite

deploy the database file via something like:

databases.files = ../../src/data/xp-apt.sqlite
ios: databases.path = Documents
macx: databases.path = Contents/Resources
QMAKE_BUNDLE_DATA += databases

note, that the path databases.files is relative to the cwd, in which

the process qmake runs

@

The class implementing the initialisation/ access to the db needs to do the following for instance:
@
#include <QtSql>
(...)

QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE", "some_name");
QSqlDatabase db = QSqlDatabase::database("some_name", false);
QString dbFilePath = "(...)";
db.setDatabaseName(dbFilePath);
db.open();
QSqlQuery *q = new QSqlQuery(db);
(...)
@

Hope that helps!

elliott0124

Hi!

I'm follow this example.
But It doesn't work for me.

In Desktop, iOS simulator mode is fine.
But it doesn't work with my iPad.

Thanks you if you can help me.

jraichouni

I currently work on my work environment and do also have no iPad (iPhone only) but it shall work as described in above posts.

elliott0124

Hi, Jamil

Thanks for your feedback.

Then I tried with my iPhone5s. And It just work, but my iPadRetina don't.
Post QT creator error log above:

This plugin does not support propagateSizeHints()
&
Failed to make complete framebuffer object 8cdd

Thanks again for your help.

elliott0124

[Solved]
Update to QT5.2.1, iPad just work fine.

Thanks you.

vtong

Hi,
Please help. I build my app for iPad, and using database Sqlite.
Can you explain the QString dbFilePath = "(...)"; why it is "(...)"
Thanks and regards

[quote author="Jamil Raichouni" date="1389206294"]Hi!

Take the example in the current thread.

The important things to consider are:

.pro file:
@
QT += sql
ios:QTPLUGIN += qsqlite

deploy the database file via something like:

databases.files = ../../src/data/xp-apt.sqlite
ios: databases.path = Documents
macx: databases.path = Contents/Resources
QMAKE_BUNDLE_DATA += databases

note, that the path databases.files is relative to the cwd, in which

the process qmake runs

@

The class implementing the initialisation/ access to the db needs to do the following for instance:
@
#include <QtSql>
(...)

QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE", "some_name");
QSqlDatabase db = QSqlDatabase::database("some_name", false);
QString dbFilePath = "(...)";
db.setDatabaseName(dbFilePath);
db.open();
QSqlQuery *q = new QSqlQuery(db);
(...)
@

Hope that helps![/quote]

SGaist

It's a placeholder text that you must replace with the path to your database file

vtong

Thanks SGaist,
It works now.

SherifOmran

hi every body,

i ve the same issue, should this mean that we don't need to use Q_IMPORT_PLUGIN(qsqlite);
any more for static compiling?