[PySide] Fwd: How do I return an object in Python and use it in QML?

[Boris Pohler]

You need to wrap the objects inside a QObject, have a look at this
example:
http://qt-project.org/wiki/Selectable-list-of-Python-objects-in-QML

Am Samstag, den 09.03.2013, 15:08 +0800 schrieb Tom Li:
> Well, I have no knowledge with JavaScript, or CSS. I just want to use
> QML as a beautiful ListView.
> 
> I'm writing a Twitter client. I implemented TweetItem and TweetModel.
> The issue is that there is a role in TweetItem called original. I want
> it to point to the original tweet.
> 
> But I can not use it with "." operator in QML. I get an undefined value.
> What is the right way to do it?
> 
> Thanks.
> 
> Here's my code.
> 
> main.py:
> 
> import sys
> from PySide import QtCore, QtGui, QtDeclarative
> 
> 
> class TweetModel(QtCore.QAbstractListModel):
>     def __init__(self, prototype, parent=None):
>         QtCore.QAbstractListModel.__init__(self, parent)
>         self.setRoleNames(prototype.roleNames())
>         self.tweets = []
> 
>     def appendRow(self, item):
>         self.tweets.append(item)
> 
>     def rowCount(self, parent=QtCore.QModelIndex()):
>         return len(self.tweets)
> 
>     def data(self, index, role):
>         return self.tweets[index.row()].data(role)
> 
> 
> class TweetItem(QtCore.QAbstractItemModel):
>     def __init__(self, id=None, type=None, user=None, content=None,
> time=None, original=None, parent=None):
>         QtCore.QAbstractItemModel.__init__(self, parent)
>         self.idRole = QtCore.Qt.UserRole + 1
>         # More Roles
>         self.originalRole = QtCore.Qt.UserRole + 6
> 
>         self.id = id
>         self.original = original
> 
>     def roleNames(self):
>         names = {}
>         names[self.idRole] = "id"
>         names[self.originalRole] = "original"
>         return names
> 
>     def data(self, role):
>         if role == self.idRole:
>             return self.id
>         elif role == self.originalRole:
>             return self.original
>         else:
>             return QtCore.QVariant()
> 
> 
> if __name__ = "__main__":
>     model = TweetModel(TweetItem(), QtGui.qApp)
>     item = TweetItem("0001", None, model)
>     model.appendRow(TweetItem("0002", item, model))
> 
>     App = QtGui.QApplication(sys.argv)
>     view = QtDeclarative.QDeclarativeView()
>     view.rootContext().setContextProperty("mymodel", model)
>     view.setSource(QtCore.QUrl.fromLocalFile("main.qml"))
>     view.show()
>     App.exec_()
> 
> 
> main.qml:
> 
> import QtQuick 1.0
> 
> Rectangle {
>   width: 360
>   height: 360
> 
>   ListView {
>          anchors.fill: parent
>          model: mymodel
>          // original.id == undefined
>          delegate: Component { Text { text: id + " " + original.id } }
>   }
> }
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