Problem with querymodel example model

arinbluse

Hi,

I'm sorry to that did not English well

I'm studying qt5, this site example.

Linux

my problem site link is here.

qt-project.org/doc/qt-5.0/qtsql/querymodel.html

but I'dont know why this problem message.

/////////////////////////////////////////////////////////////////////////////////////////////
Starting /root/build-model-Desktop_Qt_5_1_0_GCC_32bit-Debug/model...

(model:2139): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

QSqlQuery::exec: database not open
QSqlQuery::exec: database not open
QSqlQuery::exec: database not open
OpenGL Warning: Failed to connect to host. Make sure 3D acceleration is enabled for this VM.

/root/build-model-Desktop_Qt_5_1_0_GCC_32bit-Debug/model exited with code 0

////////////////////////////////////////////////////////////////////////////////////////////////

I want to solve this problem.

please help me.

SGaist

Hi and welcome to devnet,

"database not open", did you setup your database correctly ?

Also, why are you developing as root ? It's very bad practice even if you are the only one using the virtual machine.

arinbluse

Thank you rely SGaist !!

I'm appreciated your advice.

you say "your database correctly"

that what mean ?

I using database in mysql

SGaist

It means, did you properly use QSqlDatabase to create a connection to your database ? Did you call open ? Check that it succeeded etc...