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  4. [SOLVED] How to write in a database on N950?
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[SOLVED] How to write in a database on N950?

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  • A Offline
    A Offline
    andre
    wrote on last edited by
    #4

    Do you really mean to have the creation of the database object only for symbian?

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    • M Offline
      M Offline
      mismail
      wrote on last edited by
      #5

      Ohhhhh sorry it is a big mistake, really i didn't notice that.
      Thank you very much.

      but I got another error i think this time it is a real error, when i try to write or read from the DB file I always get the following message.
      bq. "attempt to write a readonly database Unable to fetch row"

      the database exists in the following path

      "/opt/myapplication/data/faces.db"

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      • A Offline
        A Offline
        andre
        wrote on last edited by
        #6

        You don't seem to have rights to modify the database in question.

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        • M Offline
          M Offline
          mismail
          wrote on last edited by
          #7

          yes, I think it a problem of permission, So should i change it's path or there is a way to change the Db permission pragmatically.
          I saw the db file permission and it was (-rw-r--r--) I think that the only one who has the permission to write the file is the root.
          How can I deal with that?
          Thanks in advance

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          • M Offline
            M Offline
            mismail
            wrote on last edited by
            #8

            When I tried to run the application as root the application was successfully able to read and write the DB file.
            SO how can I change the permission of the Db for the User?

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            • G Offline
              G Offline
              geronik
              wrote on last edited by
              #9

              Hi,
              I had similar problems and they are caused by the deployment setting permissions to read only. So this is what I did to solve this.

              • Created a post installation script named ex. myapp.postinst.
              • Inside that script copied the file I would like to use ex. @cp /opt/myapp/path/to/file.txt /opt/myapp/path/to/copy.txt@ and also @chmod a+rwx /opt/myapp/path/to/copy.txt@ to change permissions..
              • Created a pre removal script named doing removing stuff
              • The application must of course use the copied file created from the post installation script.
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              • M Offline
                M Offline
                mismail
                wrote on last edited by
                #10

                how could you add this post script to the package?

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                • G Offline
                  G Offline
                  geronik
                  wrote on last edited by
                  #11

                  You could do that from inside QtCreator also, you should already have added the packaging files for Debian Harmattan device. Then just right click to the root item named qt_packaging/Debian_Harmattan and in the wizzard select the choice 'text file' and supply a name for that file. Then rename the new file to "myapp.postinst", add your code and that's it .

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                  • M Offline
                    M Offline
                    mismail
                    wrote on last edited by
                    #12

                    I did that but i didn't copy the db file i just changed it's permission and it's parent folder
                    chmod a+w /home/user/.myapplication/data
                    chmod a+w /home/user/.myapplication/data

                    Thank you

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                    • G Offline
                      G Offline
                      geronik
                      wrote on last edited by
                      #13

                      Could that also.. :-)

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