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ListView delegate isnt able to access model properties after inserting into QAbstractItemModel

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  • Christian EhrlicherC Christian Ehrlicher

    @Creaperdown There I can't help - don't use QML

    C Offline
    C Offline
    Creaperdown
    wrote on last edited by
    #13

    @Christian-Ehrlicher So you think this is a qml related problem?

    Christian EhrlicherC JonBJ 2 Replies Last reply
    0
    • C Creaperdown

      @Christian-Ehrlicher So you think this is a qml related problem?

      Christian EhrlicherC Online
      Christian EhrlicherC Online
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #14

      I would create a single/atomar add function to really make sure the add is correct but the rest looks good.

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
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      • C Creaperdown

        @Christian-Ehrlicher So you think this is a qml related problem?

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by
        #15

        @Creaperdown
        Yes indeed it is, which is why I suggested this thread might be better moved to QML forum in the first place, though never mind now.

        C 1 Reply Last reply
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        • JonBJ JonB

          @Creaperdown
          Yes indeed it is, which is why I suggested this thread might be better moved to QML forum in the first place, though never mind now.

          C Offline
          C Offline
          Creaperdown
          wrote on last edited by
          #16

          @JonB I'll be closing this here then and moving it to the Qml section

          Christian EhrlicherC JoeCFDJ 2 Replies Last reply
          0
          • C Creaperdown deleted this topic on
          • C Creaperdown

            @JonB I'll be closing this here then and moving it to the Qml section

            Christian EhrlicherC Online
            Christian EhrlicherC Online
            Christian Ehrlicher
            Lifetime Qt Champion
            wrote on last edited by
            #17

            Why do you delete this thread? To start over the same discussion about the possible wrong usage of begin/endInsertRows again?

            Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
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            • Christian EhrlicherC Christian Ehrlicher restored this topic on
            • C Creaperdown

              @JonB I'll be closing this here then and moving it to the Qml section

              JoeCFDJ Offline
              JoeCFDJ Offline
              JoeCFD
              wrote on last edited by
              #18

              @Creaperdown in your model, do the following:

                  beginResetModel();
                   add new row()
                  endResetModel();
              
              SGaistS 1 Reply Last reply
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              • JoeCFDJ JoeCFD

                @Creaperdown in your model, do the following:

                    beginResetModel();
                     add new row()
                    endResetModel();
                
                SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #19

                @JoeCFD said in ListView delegate isnt able to access model properties after inserting into QAbstractItemModel:

                @Creaperdown in your model, do the following:

                    beginResetModel();
                     add new row()
                    endResetModel();
                

                If you need to reset the whole model because you insert one row, there's likely a design issue.

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                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                JoeCFDJ 1 Reply Last reply
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                • SGaistS SGaist

                  @JoeCFD said in ListView delegate isnt able to access model properties after inserting into QAbstractItemModel:

                  @Creaperdown in your model, do the following:

                      beginResetModel();
                       add new row()
                      endResetModel();
                  

                  If you need to reset the whole model because you insert one row, there's likely a design issue.

                  JoeCFDJ Offline
                  JoeCFDJ Offline
                  JoeCFD
                  wrote on last edited by
                  #20

                  @SGaist It is an option. I am not sure if everything is redone.

                  SGaistS 1 Reply Last reply
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                  • JoeCFDJ JoeCFD

                    @SGaist It is an option. I am not sure if everything is redone.

                    SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #21

                    @JoeCFD basically, it tells the view that everything has changed so it should reload everything as a consequence.

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

                    JoeCFDJ 1 Reply Last reply
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                    • SGaistS SGaist

                      @JoeCFD basically, it tells the view that everything has changed so it should reload everything as a consequence.

                      JoeCFDJ Offline
                      JoeCFDJ Offline
                      JoeCFD
                      wrote on last edited by JoeCFD
                      #22

                      @SGaist True. kind of global update. It is better to use
                      beginInsertRows() and endInsertRows().

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                      • C Offline
                        C Offline
                        Creaperdown
                        wrote on last edited by
                        #23

                        The problem was a missing reference on the container. It should have been QList<Bookmark>&, thus it didnt update the container when I add a book.

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                        • C Creaperdown has marked this topic as solved on

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