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Unable to connect to Mysql on Mac

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #8

    Sorry, I meant the QSqlDatabase::error function

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    • F Offline
      F Offline
      fuji256
      wrote on last edited by
      #9

      QSqlError.text is "Driver not loaded"… not sure that's what you meant.

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #10

        Yes that's it but I was hoping for more information since you have the plugin that seems to be built correctly.

        Did you build it yourself ?

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        • F Offline
          F Offline
          fuji256
          wrote on last edited by
          #11

          Not yet, because it didn't work at all. I thought it evt. could work since it comes in the package… however. I'm trying to build it again. After downgrading my server to mysql 5.5 version and adjusting the suggested links from the program internal help I'm stuck again:
          qsql_mysql.o only in 32bit but it automatically tries to build in 64bit clang…

          omg

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #12

            Are you trying to build the plugin in 32 bit ? Qt's in 64 bit by default

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            • F Offline
              F Offline
              fuji256
              wrote on last edited by
              #13

              It tries to build in 64 with clang 64, but it claims qsql_mysql.o coming with Qt src is only 32bit and stops building because of that…

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #14

                How did you install Qt ?

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                • F Offline
                  F Offline
                  fuji256
                  wrote on last edited by
                  #15

                  Hello again.
                  Now i managed to build the plugin successfully with latest versions.
                  But still the sample sqlbrowser doesn't load the driver.

                  I also checkt all dependencies and tried having a copy of the driver libqsqlmysql.dylib and libqsqlmysql_debug.dylib as well as libmysqlclient.18.dylib to the project folder.

                  desperate again… a big thnx for any hints in advance!!

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                  • F Offline
                    F Offline
                    fuji256
                    wrote on last edited by
                    #16

                    I'm working on osX 10.8.5, Qt Creator 3.01 (based on Qt 5.2.1 clang-64)
                    the driver is based on the same version src for sql-drivers and mysql 5.6.17 (x86_64) also properly working with workbench on localhost…

                    the only thing could be that libmysqlclient.18.dylib wasn't built with clang-64. but how to solve that? the linker worked properly.

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      They must not be in the same folder as the application. Qt looks for the plugins in specific folders. What you must ensure is that llibqsqlmysql can get to libmysqlclient what does otool -L on both libraries return ?

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                      • F Offline
                        F Offline
                        fuji256
                        wrote on last edited by
                        #18

                        Of course, putting them in the same folder as the project was an act of desperation. The links i've checked and all seemed fine to me - i found all the required files in pace.
                        The output of otool -L for libmysqlclient and libqsqlmysql in the clang_64/plugins/sqlservers folder:

                        libmysqlclient.18.dylib:
                        libmysqlclient.18.dylib (compatibility version 18.0.0, current version 18.0.0)
                        /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
                        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)

                        libqsqlmysql.dylib:
                        libqsqlmysql.dylib (compatibility version 0.0.0, current version 0.0.0)
                        libmysqlclient.18.dylib (compatibility version 18.0.0, current version 18.0.0)
                        /usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.5)
                        /Users/br/Qt521/5.2.1/clang_64/lib/QtSql.framework/Versions/5/QtSql (compatibility version 5.2.0, current version 5.2.1)
                        /Users/br/Qt521/5.2.1/clang_64/lib/QtCore.framework/Versions/5/QtCore (compatibility version 5.2.0, current version 5.2.1)
                        /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 56.0.0)
                        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 169.3.0)

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #19

                          The id of libmysqlclient.18.dylib is just libmysqlclient.18.dylib so you either need to add the path containing that lib to DYLD_LIBRARY_PATH or update the id to use the full path to it.

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

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                          • F Offline
                            F Offline
                            fuji256
                            wrote on last edited by
                            #20

                            You're my hero of the week!!
                            Thanks a lot!
                            b

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