Datachanged signal does not work

shigarus

Hello!
I have problem with dataChanged signal.

In my class, inherited from QAbstractItemModel, I have following functions:

@def columnCount(self, parent):
return 1

def data(self, index, role):
if index.isValid():
node = self.nodeForIndex(index)
if role == QtCore.Qt.DisplayRole:
return node.nodeData[index.column()]
if role == QtCore.Qt.DecorationRole:
return node.icon
if role == QtCore.Qt.EditRole:
return node.name
if role == QtCore.Qt.ToolTipRole:
return node.name

def flags(self, index):
return QtCore.Qt.ItemIsEnabled |
QtCore.Qt.ItemIsSelectable |
QtCore.Qt.ItemIsDragEnabled |
QtCore.Qt.ItemIsDropEnabled |
QtCore.Qt.ItemIsEditable

def headerData(self, section, orientation, role):
if orientation == QtCore.Qt.Horizontal and
role == QtCore.Qt.DisplayRole:
return self.rootNode.data(section)
else:
return None

def index(self, row, column, parent):
if not parent.isValid():
parentNode = self.rootNode
else:
parentNode = parent.internalPointer()

#childNode = parentNode.childAt(row)
if parentNode.childAt(row):
    return self.createIndex(row, column, parentNode.childAt(row))
else:
    return QtCore.QModelIndex()

def nodeForIndex(self, index):
if index.isValid():
node = index.internalPointer()
return node
return self.rootNode

def parent(self, index):
if not index.isValid():
return QtCore.QModelIndex()

childNode = index.internalPointer()
parentNode = childNode.parent

if not childNode or not parentNode:
    return QtCore.QModelIndex()

if parentNode == self.rootNode:
    return QtCore.QModelIndex()

return self.createIndex(parentNode.getRow(), 0, parentNode)

def setData(self, index, value, role):
node = self.nodeForIndex(index)
if role == QtCore.Qt.EditRole:
node.changeName(value)
self.dataChanged.emit(index, index)
return True@

In func setData signal dataChanged.emit() just don't work. I tried to catch it myself, signal emited right and indexe is valid. But my views are not updated. What's wrong?