Installing Qt Sql (qt verion 5)

[ReneUafasah]

Hello Forum,

I was expecting to see an option to "click and install" in order to get the QtSql package in the Maintenance Tool.
It didnt appear. I am using Qt 5.15.2. When I click on "Add and Remove Components" it didnt appear among the other list of "goodies" like QtWebEngine etc.

Am I looking in the wrong place? Where do I find it?

Rene

[SGaist]

Then again, as @Christian-Ehrlicher, the issue is how you link them to your application and that is what you should show.

[Christian Ehrlicher]

@ReneUafasah said in Installing Qt Sql (qt verion 5):

Where do I find it?

It's already installed with the base Qt installation.

[ReneUafasah]

Thanks for that info.

I am getting this error in my application:

C1083: Cannot open include file: 'QtSql': No such file or directory

For what its worth, I have this in my CMakeLists.txt:

set(linked_libraries
PUBLIC Qt5::Core
PUBLIC Qt5::Sql.....

Qt5::Core works "out of the box" as you would expect but Qt5::Sql is somehow not found.

[SGaist]

Hi,

If you are on Linux, are you sure you are using the Qt version from the online installer and the one from your distribution ?

[mchinand]

Do you have a line like this (or combined with other Qt modules) in your CMakelLists.txt file:

find_package(Qt5Sql REQUIRED)

[Christian Ehrlicher]

@ReneUafasah said in Installing Qt Sql (qt verion 5):

set(linked_libraries
PUBLIC Qt5::Core
PUBLIC Qt5::Sql.....

here you only set a variable, you don't do anything with your target...

[ReneUafasah]

@SGaist I am using Windows

[SGaist]

Can you share your CMakeLists.txt ?

As @Christian-Ehrlicher suggested, there's something wrong with it.

[ReneUafasah]

@SGaist

Thanks for the request. I share what I can for now.
I have this in the Utils.cmake file: ( in a cmake folder in root directory):

macro(xxx_find_qt5_package)
    find_package(Qt5 5.12 COMPONENTS Core Network Sql REQUIRED)
endmacro()

It is then called in the main CMakeLists.txt, in the root folder.

xxx_find_qt5_package()

when I click in the "Configure" button in the CMake GUI program, I see_

....
-- The following REQUIRED packages have been found:

 * Qt5Core
 * Qt5Network
 * Qt5Sql
 * Qt5 (required version >= 5.12)

Configuring done
Generating done

I am not sure if sharing any other parts of cmakeLists.txt can help.
Hmm , I think need to see why other packages (Qt5Network) dont have path problems.

[SGaist]

Then again, as @Christian-Ehrlicher, the issue is how you link them to your application and that is what you should show.

[ReneUafasah]

The following change in the CMakeLists.txt folder inside the client library that uses the persistence libraries (which contain Qt Sql)

set(linked_libraries
            PUBLIC Qt5::Core
            PUBLIC Qt5::Network


            PUBLIC my-api::persistence # This line was added
       )