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(MySQL) qsqlmysql.dll doesn't get created.

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  • T Thelonious

    @SGaist The help article at https://doc.qt.io/qt-6/sql-driver.html literally shows the driver building directory as bin.

    Pulled directly from the article

    C:\Qt\6.0.0\mingw81_64\bin\qt-cmake -G Ninja C:\Qt\6.0.0\Src\qtbase\src\plugins\sqldrivers -DMySQL_INCLUDE_DIR="C:\mysql-8.0.22-winx64\include" -DMySQL_LIBRARY="C:\mysql-8.0.22-winx64\lib\libmysql.lib" -DCMAKE_INSTALL_PREFIX="C:\Qt\6.0.0\mingw81_64"
    Configure summary:
    
    Qt Sql Drivers:
      DB2 (IBM) .............................. no
      InterBase .............................. no
      MySql .................................. yes
      OCI (Oracle) ........................... no
      ODBC ................................... yes
      PostgreSQL ............................. no
      SQLite ................................. yes
        Using system provided SQLite ......... no
    
    -- Configuring done
    -- Generating done
    -- Build files have been written to: C:/build-qt6-sqldrivers
    

    It feels as though MySQL has taken a tangent from QT support; it's clear they aren't working closely together. I can go ahead and write my program using SQLite and revisit this in the future because i'm all out of ideas.

    I really do appreciate all of yalls help though, there were a few moments when I thought I almost had it.

    SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #32

    The last line is important: everything happens in ˋc:/build-qt6-sqldrivers`.

    Interested in AI ? www.idiap.ch
    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

    T 1 Reply Last reply
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    • SGaistS SGaist

      The last line is important: everything happens in ˋc:/build-qt6-sqldrivers`.

      T Offline
      T Offline
      Thelonious
      wrote on last edited by
      #33

      @SGaist
      I'm going reinstall Qt and try again.

      I'll open up a cmd prompt
      C:\mysql
      and then invoke qt-cmake using it's path

      C:\Qt\6.4.3\msvc2019_64\bin\qt-cmake
      

      I'll let you know how it goes. Ninja won't install on my system, give some sort of error regarding Microsoft Store.

      SGaistS 1 Reply Last reply
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      • T Thelonious

        @SGaist
        I'm going reinstall Qt and try again.

        I'll open up a cmd prompt
        C:\mysql
        and then invoke qt-cmake using it's path

        C:\Qt\6.4.3\msvc2019_64\bin\qt-cmake
        

        I'll let you know how it goes. Ninja won't install on my system, give some sort of error regarding Microsoft Store.

        SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #34

        Are you installing it through the Qt installer ?

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        T 1 Reply Last reply
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        • SGaistS SGaist

          Are you installing it through the Qt installer ?

          T Offline
          T Offline
          Thelonious
          wrote on last edited by Thelonious
          #35

          @SGaist It is bundled with Qt in the C:\Qt\Tools\Ninja\ folder but I can't "install" it. I tried searching for an answer it seems that its blocked by Microsoft Defender or something else in my environment that I can't disable. Do you think the drivers can be built without it?

          BTW, i'm a linux guy at heart and I'm probably going to try to set my Ubuntu environment at home for this.

          SGaistS 1 Reply Last reply
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          • T Thelonious

            @SGaist It is bundled with Qt in the C:\Qt\Tools\Ninja\ folder but I can't "install" it. I tried searching for an answer it seems that its blocked by Microsoft Defender or something else in my environment that I can't disable. Do you think the drivers can be built without it?

            BTW, i'm a linux guy at heart and I'm probably going to try to set my Ubuntu environment at home for this.

            SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #36

            Then there's nothing more you need to do. It should just work (tm). Ninja should be available.

            On Linux you can use your distribution's Qt dev packages. It will be easier.

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            T 1 Reply Last reply
            1
            • SGaistS SGaist

              Then there's nothing more you need to do. It should just work (tm). Ninja should be available.

              On Linux you can use your distribution's Qt dev packages. It will be easier.

              T Offline
              T Offline
              Thelonious
              wrote on last edited by
              #37

              @SGaist
              Normally I have to modify the qt-cmake.bat file to direct it to the correct folder for CMake. Should I be modifying that or should I move my CMake installation folder to where its currently represented in the file? Same question for Ninja.

              SGaistS 1 Reply Last reply
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              • T Thelonious

                @SGaist
                Normally I have to modify the qt-cmake.bat file to direct it to the correct folder for CMake. Should I be modifying that or should I move my CMake installation folder to where its currently represented in the file? Same question for Ninja.

                SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #38

                You shouldn't need to do that at all.
                If cmake is not found, you are likely using a terminal not configured properly.

                You can modify the PATH environment variable.

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                T 2 Replies Last reply
                1
                • SGaistS SGaist

                  You shouldn't need to do that at all.
                  If cmake is not found, you are likely using a terminal not configured properly.

                  You can modify the PATH environment variable.

                  T Offline
                  T Offline
                  Thelonious
                  wrote on last edited by Thelonious
                  #39

                  BREAKTHROUGH!!!

                  explanation incoming

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                  • SGaistS SGaist

                    You shouldn't need to do that at all.
                    If cmake is not found, you are likely using a terminal not configured properly.

                    You can modify the PATH environment variable.

                    T Offline
                    T Offline
                    Thelonious
                    wrote on last edited by Thelonious
                    #40

                    @SGaist

                    Here's what I did and what I got.

                    Before I go any further I'd really like to thank you @SGaist, @Christian-Ehrlicher , @jsulm for your help. I am approaching this as a complete beginner and this is no simple task to understand.

                    After I got by butt out of the QT folder for building I used the Start Menu terminal entry for the platform my app will be in (MSVC2019_64) and navigated to my self-made C:\mysql folder.

                    I was able to build the plugins using

                    qt-cmake C:\Qt\6.4.3\Src\qtbase\src\plugins\sqldrivers -DMySQL_INCLUDE_DIR="C:\Program Files\MySQL\MySQL Connector C 6.1\include" -DMySQL_LIBRARY="C:\Program Files\MySQL\MySQL Connector C 6.1\lib\libmysql.lib"
                    

                    Once the plugins were created I was able to build qsqlmysql.dll and qsqlmysql.pdb by opening the ALL_BUILD.vcxproj in visual studio and building it there (which is what I think @Christian-Ehrlicher was trying to tell me instead of using the command line).

                    I transferred the newly made qsqlmysql.dll and qsqlmysql.pdb to the platform folder of C:\Qt\6.4.3\msvc2019_64\plugins\sqldrivers.

                    I believe I still have to install the drivers but this is obviously the result I've yet to get up to this point.

                    EDIT:

                    Did the same process of opening up INSTALL.vcxproj in Visual Studio and building it there and it was also a success. Now I imagine I just have the right #includes in my project and should be able to connect to MySQL. If it would benefit the community I'd be happy to write up an in depth breakdown of how this is done for my system.

                    1 Reply Last reply
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                    • Christian EhrlicherC Christian Ehrlicher

                      Either open the generated solution and build the debug version (can also be done from the command line but I don't remember the commands) or use -G Ninja or -G NMake Makefiles for the cmake generator - they both produce rules to create both plugins directly. Maybe we should add this to the documentation. MSBuild is not meant to be run on the command line and therefore has a lot of strange switches...

                      T Offline
                      T Offline
                      Thelonious
                      wrote on last edited by Thelonious
                      #41

                      @Christian-Ehrlicher

                      Where do I find the project that builds the debug version? I have the release qsqlmysql.<dll.pdb> but not qsqlmysqld<dll.pdb>

                      Christian EhrlicherC 1 Reply Last reply
                      0
                      • T Thelonious

                        @Christian-Ehrlicher

                        Where do I find the project that builds the debug version? I have the release qsqlmysql.<dll.pdb> but not qsqlmysqld<dll.pdb>

                        Christian EhrlicherC Offline
                        Christian EhrlicherC Offline
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote on last edited by
                        #42

                        @Thelonious You can change the build type in the msvc IDE.

                        But as I said - use NMake Makefiles or Ninja to create both of them directly on the command line...

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