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Access model in another qml component

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

    I changed it but still same error:

    @
    qrc:///TimelineDeviceDetail.qml:42:19: Unable to assign [undefined] to QString
    @

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    • p3c0P Offline
      p3c0P Offline
      p3c0
      Moderators
      wrote on last edited by
      #13

      That's strange. Is it for all 3 or just time ?

      157

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      • p3c0P Offline
        p3c0P Offline
        p3c0
        Moderators
        wrote on last edited by
        #14

        Also I see
        @
        TimelineDeviceDetail {
        id: detailRectangle }
        @

        after the Repeater. Remove it. The error could be because of that too. Since it is not is scope of Repeater, it will also attract those errors.

        157

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        • M Offline
          M Offline
          morker
          wrote on last edited by
          #15

          Yes, for all three. I removed the TimelineDeviceDetail.

          I get no errors but how can I include the TimelineDeviceDetail back to my TimelineVertical after I deleted:

          @
          TimelineDeviceDetail {
          id: detailRectangle }
          @

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          • M Offline
            M Offline
            morker
            wrote on last edited by
            #16

            I want the TimelineDeviceDetail exactly at the position where I deleted it.

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            • p3c0P Offline
              p3c0P Offline
              p3c0
              Moderators
              wrote on last edited by
              #17

              So you have TimelineDeviceDetail.qml file. You can assign an id there.

              157

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              • M Offline
                M Offline
                morker
                wrote on last edited by
                #18

                ... I don't get it, can you make a quick example? In my opinion the "delegate" just delegate the model to TimelineDeviceDetail and to make TimelineDeviceDetail visible I have to declare it somewhere in TimelineVertical...

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                • p3c0P Offline
                  p3c0P Offline
                  p3c0
                  Moderators
                  wrote on last edited by
                  #19

                  From your earlier posts i assume that you have a separate TimelineDeviceDetail.qml file. So define an id here.
                  @
                  import QtQuick 2.0

                  Rectangle {
                  // id: rectangle2
                  id: detailRectangle
                  width: 0
                  height: 200
                  color: "#FFFFFF"
                  radius: 4
                  anchors.right: parent.right
                  ...
                  @

                  and it will be accessible as before.

                  Edited

                  157

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                  • M Offline
                    M Offline
                    morker
                    wrote on last edited by
                    #20

                    Yes thats correct I have a separate file: TimelineDeviceDetail.qml

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                    • p3c0P Offline
                      p3c0P Offline
                      p3c0
                      Moderators
                      wrote on last edited by
                      #21

                      So just define an id (detailRectangle) there and it will be accessible. See my earlier edited post.

                      157

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                      • M Offline
                        M Offline
                        morker
                        wrote on last edited by
                        #22

                        So you mean:

                        in TimelineDeviceDetail.qml

                        @
                        //detail
                        Rectangle {
                        id: detailRectangle
                        width: 0
                        height: 200
                        color: "#FFFFFF"
                        radius: 4
                        anchors.right: parent.right
                        anchors.rightMargin: 100
                        opacity: 0.70
                        anchors.left: timelineLineRectangle.right
                        anchors.leftMargin: 165
                        anchors.top: timeslotRow.bottom
                        anchors.topMargin: 0
                        visible: true //debugging: make it false

                            Text {
                                id: euroText
                        

                        // Component.onCompleted: console.log("euro: " + timeslotmodel.euro)
                        text: model.euro
                        anchors.top: parent.top
                        anchors.topMargin: 20
                        anchors.left: parent.left
                        anchors.leftMargin: 20
                        font.pixelSize: 12
                        }

                            Text {
                                id: kwhText
                        

                        // Component.onCompleted: console.log("kwh: " + timeslotmodel.kwh)
                        text: model.kwh
                        anchors.top: parent.top
                        anchors.topMargin: 20
                        anchors.horizontalCenter: parent.horizontalCenter
                        font.pixelSize: 12
                        }

                            Text {
                                id: timeText
                                text: model.time
                                anchors.top: parent.top
                                anchors.topMargin: 20
                                anchors.right: parent.right
                                anchors.rightMargin: 20
                                font.pixelSize: 12
                            }
                        

                        //...
                        @

                        and int TimelineVertical.qml:

                        @
                        Repeater {
                        id: deviceRepeater
                        model: timeslotmodel
                        delegate: TimelineDeviceDetail {}
                        // Component.onCompleted: console.log("euroValueTest: " + timeslotmodel.euro)
                        Button {id: deviceImageButton; anchors.verticalCenter: parent.verticalCenter; iconSource: deviceImage; width: 100; height: 100; /onClicked: setVisibleEffect(detailRectangle, deviceItem);/ style: TimelineDeviceButtonStyle{} }

                                                }
                                            }
                                        }
                                    }
                                }
                        
                                 TimelineDeviceDetail {} //set the view where I need it
                        

                        @

                        But than I get the same error as before:

                        qrc:///TimelineDeviceDetail.qml:22:19: Unable to assign [undefined] to QString
                        qrc:///TimelineDeviceDetail.qml:33:19: Unable to assign [undefined] to QString
                        qrc:///TimelineDeviceDetail.qml:42:19: Unable to assign [undefined] to QString

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                        • M Offline
                          M Offline
                          morker
                          wrote on last edited by
                          #23

                          I put the code from TimelineDeviceDetail.qml back to TimelineVertical.qml to make it simple. It turned out that it's even there not accessible...

                          @
                          Row {
                          id: deviceRow
                          spacing: 20

                                                  Repeater {
                                                      id: deviceRepeater
                                                      model: timeslotmodel
                                                      delegate: detailRectangle
                          
                                                      Button {id: deviceImageButton; anchors.verticalCenter: parent.verticalCenter; iconSource: deviceImage; width: 100; height: 100; onClicked: setVisibleEffect(detailRectangle, deviceItem); style: TimelineDeviceButtonStyle{} }
                                                  }
                                              }
                                          }
                                      }
                                  }
                          
                                  Rectangle {
                                      id: detailRectangle
                                      width: 0
                                      height: 200
                                      color: "#FFFFFF"
                                      radius: 4
                                      anchors.right: parent.right
                                      anchors.rightMargin: 100
                                      opacity: 0.70
                                      anchors.left: timelineLineRectangle.right
                                      anchors.leftMargin: 165
                                      anchors.top: timeslotRow.bottom
                                      anchors.topMargin: 0
                                      visible: false //debugging: make it false
                          
                                      Text {
                                          id: euroText
                                          text: model.euro
                                          anchors.top: parent.top
                                          anchors.topMargin: 20
                                          anchors.left: parent.left
                                          anchors.leftMargin: 20
                                          font.pixelSize: 12
                                      }
                          
                                      Text {
                                          id: kwhText
                                          text: model.kwh
                                          anchors.top: parent.top
                                          anchors.topMargin: 20
                                          anchors.horizontalCenter: parent.horizontalCenter
                                          font.pixelSize: 12
                                      }
                          
                                      Text {
                                          id: timeText
                                          text: model.time
                                          anchors.top: parent.top
                                          anchors.topMargin: 20
                                          anchors.right: parent.right
                                          anchors.rightMargin: 20
                                          font.pixelSize: 12
                                      }
                          
                          
                                      Rectangle {
                                          id: rectangle1
                                          height: 2
                                          color: "#34495e"
                                          anchors.top: parent.top
                                          anchors.topMargin: 60
                                          anchors.right: parent.right
                                          anchors.rightMargin: 0
                                          anchors.left: parent.left
                                          anchors.leftMargin: 0
                          
                                      }
                                  }
                          

                          @

                          @
                          Unable to assign [undefined] to QString
                          @

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                          • p3c0P Offline
                            p3c0P Offline
                            p3c0
                            Moderators
                            wrote on last edited by
                            #24

                            If you define delegate in same file then you will need to encapsulate it in Component.

                            Going to the previous, you have again added TimelineDeviceDetail there. Please remove it or you will get the same errors. Please refer my earlier posts.
                            TimelineDeviceDetail will be accessible using its id even if it is specified in separate file.

                            157

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                            • M Offline
                              M Offline
                              morker
                              wrote on last edited by
                              #25

                              Ok thanks for that advise. Can you please tell my if I remove "TimelineDeviceDetail" from "TimelineVertical" how to include the TimelineDeviceDetail in TimelineVertical? Or can you make "will be accessible using its id..." a little bit more clear?

                              Thanks

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                              • p3c0P Offline
                                p3c0P Offline
                                p3c0
                                Moderators
                                wrote on last edited by
                                #26

                                Ok. Just revisited the posts. I too got confused. Lots of code here :)
                                First Why would you want TimelineDeviceDetail outside the delegate as it has already been assigned as delegate to repeater ?

                                Just created a small example related to above:
                                @
                                //TimelineDeviceDetail.qml
                                import QtQuick 2.3
                                Rectangle {
                                id: detailRectangle
                                y: index*40
                                width: 300
                                height: 40
                                color: "lightgray"
                                Text {
                                anchors.centerIn: parent
                                text: model.euro
                                }
                                }

                                //main.qml
                                import QtQuick 2.3
                                Rectangle {
                                width: 300
                                height: 180

                                ListModel {
                                    id: mymodel
                                    ListElement {
                                        euro: "3"
                                    }
                                    ListElement {
                                        euro: "6"
                                    }
                                }
                                
                                Repeater {
                                    model: mymodel
                                    delegate: TimelineDeviceDetail {}
                                }
                                

                                }
                                @

                                Here TimelineDeviceDetail is able to access the model role(euro).
                                Now can you format your question and requirements according to above example so it will be easier for me to understand?

                                157

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                                • M Offline
                                  M Offline
                                  morker
                                  wrote on last edited by
                                  #27

                                  That's a good idea to simplify that. Did you compile the example?

                                  I get the following error:

                                  @
                                  qrc:///TestTimeline.qml:12: ReferenceError: model is not defined
                                  @

                                  Test.qml:

                                  @
                                  import QtQuick 2.3
                                  import QtQuick.Controls 1.2
                                  import QtQuick.Layouts 1.1

                                  Rectangle {
                                  id: rectangle1
                                  anchors.fill: parent

                                  Rectangle {
                                      width: 300
                                      height: 180
                                  
                                      ListModel {
                                          id: mymodel
                                          ListElement {
                                              euro: "3"
                                          }
                                          ListElement {
                                              euro: "6"
                                          }
                                      }
                                  
                                      Repeater {
                                          model: mymodel
                                          delegate: TestTimeline {}
                                  
                                          Text {
                                              text: euro
                                          }
                                      }
                                  }
                                  

                                  }
                                  @

                                  TestTimeline.qml:

                                  @
                                  import QtQuick 2.3
                                  import QtQuick.Controls 1.2
                                  import QtQuick.Layouts 1.1

                                  Rectangle {
                                  id: detailRectangle
                                  width: 300
                                  height: 40
                                  color: "blue"
                                  Text {
                                  anchors.centerIn: parent
                                  text: model.euro
                                  }
                                  }
                                  @

                                  I made some little changes on your code.

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                                  • M Offline
                                    M Offline
                                    morker
                                    wrote on last edited by
                                    #28

                                    I set up a new project just to test this little example and the same here. Any suggestions?

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                                    0
                                    • M Offline
                                      M Offline
                                      morker
                                      wrote on last edited by
                                      #29

                                      I fixed this with JavaScript, probably not this best way but it works for me...

                                      TimleineVertical.qml:

                                      @
                                      Row {
                                      id: deviceRow
                                      spacing: 20

                                                              Repeater {
                                                                  id: deviceRepeater
                                                                  model: attributes
                                      
                                                                  Button {id: deviceImageButton;
                                                                      anchors.verticalCenter: parent.verticalCenter;
                                                                      iconSource: deviceImage;
                                                                      width: 100;
                                                                      height: 100;
                                                                      onClicked: setVisibleDetail(detailRectangle, deviceItem), setTest(euro, kwh, time, euroText, kwhText, timeText)
                                      
                                                                      style: TimelineDeviceButtonStyle{} }
                                      
                                                              }
                                      

                                      @

                                      JavaScript to set the values from the model for the text element:

                                      @
                                      function setTest(euro, kwh, time, euroText, kwhText, timeText) {
                                      euroText.text = euro;
                                      kwhText.text = kwh;
                                      timeText.text = time;
                                      }
                                      @

                                      Text element:

                                      @
                                      Text {
                                      id: euroText
                                      anchors.top: parent.top
                                      anchors.topMargin: 30
                                      anchors.left: parent.left
                                      anchors.leftMargin: 20
                                      font.pixelSize: 12
                                      }
                                      @

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