def __init__(self, parent=None, State=VIEW):
QWidget.__init__(self, parent)
self.setupUi(self)
self._defaultEditTriggers = self.tvAdminUnits.editTriggers()
self._state = State
self._onStateChange()
self._notifBar = NotificationBar(self.vlNotification)
#Configure validating line edit controls
invalidMsg = "{} already exists."
self.txtUnitName.setModelAttr(AdminSpatialUnitSet, "Name")
self.txtUnitName.setInvalidMessage(invalidMsg)
self.txtUnitName.setNotificationBar(self._notifBar)
self.txtUnitCode.setModelAttr(AdminSpatialUnitSet, "Code")
self.txtUnitCode.setInvalidMessage(invalidMsg)
self.txtUnitCode.setNotificationBar(self._notifBar)
'''
Initialize formatter for the rendering the admin unit nodes and insert
the root node into the tree view model.
'''
self._adminUnitNodeFormatter = AdminUnitFormatter(
self.tvAdminUnits, self)
self._rtNode = self._adminUnitNodeFormatter.rootNode
self._adminUnitTreeModel = STRTreeViewModel(
self._adminUnitNodeFormatter.root(), view=self.tvAdminUnits)
self.tvAdminUnits.setModel(self._adminUnitTreeModel)
self.tvAdminUnits.hideColumn(2)
self.tvAdminUnits.setColumnWidth(0, 250)
#Connects slots
self.connect(self.btnAdd, SIGNAL("clicked()"), self.onCreateAdminUnit)
self.connect(self.btnClear, SIGNAL("clicked()"), self.onClearSelection)
self.connect(self.btnRemove, SIGNAL("clicked()"),
self.onDeleteSelection)
self.connect(
self._adminUnitTreeModel,
SIGNAL("dataChanged(const QModelIndex&,const QModelIndex&)"),
self.onModelDataChanged)
def _loadRootNodeinTree(self, root):
'''
Load the search results (formatted into an object of type 'stdm.navigaion.STR') into
the tree view.
'''
strTreeViewModel = STRTreeViewModel(root, view=self.tvSTRResults)
self.tvSTRResults.setModel(strTreeViewModel)
# Resize tree columns to fit contents
self._resizeTreeColumns()
#Capture selection changes signals when results are returned in the tree view
resultsSelModel = self.tvSTRResults.selectionModel()
self.connect(
resultsSelModel,
SIGNAL(
"selectionChanged(const QItemSelection&,const QItemSelection&)"
), self.onSelectResults)
def __init__(self,parent=None,State = VIEW):
QWidget.__init__(self,parent)
self.setupUi(self)
self._defaultEditTriggers = self.tvAdminUnits.editTriggers()
self._state = State
self._onStateChange()
self._notifBar = NotificationBar(self.vlNotification)
#Configure validating line edit controls
invalidMsg = "{} already exists."
self.txtUnitName.setModelAttr(AdminSpatialUnitSet,"Name")
self.txtUnitName.setInvalidMessage(invalidMsg)
self.txtUnitName.setNotificationBar(self._notifBar)
self.txtUnitCode.setModelAttr(AdminSpatialUnitSet,"Code")
self.txtUnitCode.setInvalidMessage(invalidMsg)
self.txtUnitCode.setNotificationBar(self._notifBar)
'''
Initialize formatter for the rendering the admin unit nodes and insert
the root node into the tree view model.
'''
self._adminUnitNodeFormatter = AdminUnitFormatter(self.tvAdminUnits, self)
self._rtNode = self._adminUnitNodeFormatter.rootNode
self._adminUnitTreeModel = STRTreeViewModel(self._adminUnitNodeFormatter.root(),view = self.tvAdminUnits)
self.tvAdminUnits.setModel(self._adminUnitTreeModel)
self.tvAdminUnits.hideColumn(2)
self.tvAdminUnits.setColumnWidth(0,250)
#Connects slots
self.connect(self.btnAdd, SIGNAL("clicked()"), self.onCreateAdminUnit)
self.connect(self.btnClear, SIGNAL("clicked()"), self.onClearSelection)
self.connect(self.btnRemove, SIGNAL("clicked()"), self.onDeleteSelection)
self.connect(self._adminUnitTreeModel, SIGNAL("dataChanged(const QModelIndex&,const QModelIndex&)"), self.onModelDataChanged)
class AdminUnitManager(QWidget,Ui_frmAdminUnitManager):
'''
Administrative Unit Manager Widget
'''
#Signal raised when the state (view/manage) of the widet changes.
stateChanged = pyqtSignal('bool')
def __init__(self,parent=None,State = VIEW):
QWidget.__init__(self,parent)
self.setupUi(self)
self._defaultEditTriggers = self.tvAdminUnits.editTriggers()
self._state = State
self._onStateChange()
self._notifBar = NotificationBar(self.vlNotification)
#Configure validating line edit controls
invalidMsg = "{} already exists."
self.txtUnitName.setModelAttr(AdminSpatialUnitSet,"Name")
self.txtUnitName.setInvalidMessage(invalidMsg)
self.txtUnitName.setNotificationBar(self._notifBar)
self.txtUnitCode.setModelAttr(AdminSpatialUnitSet,"Code")
self.txtUnitCode.setInvalidMessage(invalidMsg)
self.txtUnitCode.setNotificationBar(self._notifBar)
'''
Initialize formatter for the rendering the admin unit nodes and insert
the root node into the tree view model.
'''
self._adminUnitNodeFormatter = AdminUnitFormatter(self.tvAdminUnits, self)
self._rtNode = self._adminUnitNodeFormatter.rootNode
self._adminUnitTreeModel = STRTreeViewModel(self._adminUnitNodeFormatter.root(),view = self.tvAdminUnits)
self.tvAdminUnits.setModel(self._adminUnitTreeModel)
self.tvAdminUnits.hideColumn(2)
self.tvAdminUnits.setColumnWidth(0,250)
#Connects slots
self.connect(self.btnAdd, SIGNAL("clicked()"), self.onCreateAdminUnit)
self.connect(self.btnClear, SIGNAL("clicked()"), self.onClearSelection)
self.connect(self.btnRemove, SIGNAL("clicked()"), self.onDeleteSelection)
self.connect(self._adminUnitTreeModel, SIGNAL("dataChanged(const QModelIndex&,const QModelIndex&)"), self.onModelDataChanged)
def state(self):
'''
Returns the current state that the widget has been configured in.
'''
return self._state
def setState(self,state):
'''
Set the state of the widget.
'''
self._state = state
self._onStateChange()
def notificationBar(self):
'''
Returns the application notification widget.
'''
return self._notifBar
def _onStateChange(self):
'''
Configure controls upon changing the state of the widget.
'''
manageControls = False if self._state == VIEW else True
self.btnRemove.setVisible(manageControls)
self.btnClear.setVisible(manageControls)
self.gbManage.setVisible(manageControls)
if manageControls:
self.tvAdminUnits.setEditTriggers(self._defaultEditTriggers)
else:
self.tvAdminUnits.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.stateChanged.emit(manageControls)
def onCreateAdminUnit(self):
'''
Slot raised on clicking to add a new administrative unit.
'''
self._notifBar.clear()
if self.txtUnitName.text() == "":
msg = QApplication.translate("AdminUnitManager","Name of the administrative unit cannot be empty.")
self._notifBar.insertErrorNotification(msg)
self.txtUnitName.setFocus()
return
if not self.txtUnitName.validate():
return
if self.txtUnitCode.text() == "":
msg = QApplication.translate("AdminUnitManager","Code of the administrative unit cannot be empty.")
self._notifBar.insertErrorNotification(msg)
self.txtUnitCode.setFocus()
return
if not self.txtUnitCode.validate():
return
#Get current row selection
selIndexes = self.tvAdminUnits.selectionModel().selectedRows(0)
if len(selIndexes) == 0:
#Get the number of items in the tree view
rootIndex = self.tvAdminUnits.rootIndex()
rowCount = self._adminUnitTreeModel.rowCount(rootIndex)
if rowCount > 0:
msg = QApplication.translate("AdminUnitManager",
"You have not selected any parent node for the new administrative unit. Do " \
"you want to add it as one of the topmost administrative units?\nClick Yes to " \
"proceed or No to cancel.")
selOption = QMessageBox.warning(self,QApplication.translate("AdminUnitManager","No Parent Node Selected"),msg,
QMessageBox.Yes|QMessageBox.No)
if selOption == QMessageBox.Yes:
parentNode = self._rtNode
#We are interested in the model index of the root node
parentModelIndex = rootIndex
parentModel = None
else:
return
#Do not prompt user and immediately add the administrative unit to the root node.
else:
parentNode = self._rtNode
parentModelIndex = rootIndex
parentModel = None
else:
#Get model index for the first column as this is where the new node will be added as the child
parentModelIndex = selIndexes[0]
parentNode = self._adminUnitTreeModel._getNode(parentModelIndex)
parentID = parentNode.data(2)
ausModel = AdminSpatialUnitSet()
parentModel = ausModel.queryObject().filter(AdminSpatialUnitSet.id == parentID).first()
adminUnitModel = AdminSpatialUnitSet(self.txtUnitName.text(), self.txtUnitCode.text(), parentModel)
#Commit transaction to the database
adminUnitModel.save()
#Extract properties from the model
ausProps = self._adminUnitNodeFormatter._extractAdminUnitSetInfo(adminUnitModel)
childNode = BaseSTRNode(ausProps, parentNode)
#Insert row into the view
self._adminUnitTreeModel.insertRows(parentNode.childCount(), 1, parentModelIndex)
self.clearInputs()
def onClearSelection(self):
'''
Slot that removes any existing selections in the tree view.
'''
self.tvAdminUnits.selectionModel().clearSelection()
def onModelDataChanged(self,oldindex,newindex):
'''
Slot raised when the model data is changed.
'''
#Get model index containing ID property
refNode = self._adminUnitTreeModel._getNode(newindex)
ausID = refNode.data(2)
ausHandler = AdminSpatialUnitSet()
ausObj = ausHandler.queryObject().filter(AdminSpatialUnitSet.id == ausID).first()
if ausObj != None:
attrColumn = newindex.column()
if attrColumn == 0:
ausObj.Name = refNode.data(0)
elif attrColumn == 1:
ausObj.Code = refNode.data(1)
ausObj.update()
def onDeleteSelection(self):
'''
Slot raised to delete current selection of administrative unit.
'''
self._notifBar.clear()
#Get current row selection
selIndexes = self.tvAdminUnits.selectionModel().selectedRows(2)
if len(selIndexes) == 0:
msg = QApplication.translate("AdminUnitManager",
"Please select the administrative unit to delete.")
self._notifBar.insertWarningNotification(msg)
else:
delmsg = QApplication.translate("AdminUnitManager",
"This action will delete the selected administrative unit plus any " \
"existing children under it. It cannot be undone.\nClick Yes to " \
"delete or No to cancel.")
selOption = QMessageBox.warning(self,QApplication.translate("AdminUnitManager","Confirm deletion"),delmsg,
QMessageBox.Yes|QMessageBox.No)
if selOption == QMessageBox.Yes:
#Get the node in the current selection
delIndex = selIndexes[0]
ausNode = self._adminUnitTreeModel._getNode(delIndex)
ausId = ausNode.data(2)
ausHandler = AdminSpatialUnitSet()
ausObj = ausHandler.queryObject().filter(AdminSpatialUnitSet.id == ausId).first()
if not ausObj is None:
ausObj.delete()
#Remove item in tree view
self._adminUnitTreeModel.removeRows(delIndex.row(), 1, delIndex.parent())
#Notify user
self._notifBar.clear()
successmsg = QApplication.translate("AdminUnitManager",
"Administrative unit successfully deleted.")
self._notifBar.insertInfoNotification(successmsg)
def selectedAdministrativeUnit(self):
'''
Returns the selected administrative unit object otherwise, if there is no
selection then it returns None.
'''
selIndexes = self.tvAdminUnits.selectionModel().selectedRows(2)
if len(selIndexes) == 0:
selAdminUnit = None
else:
selIndex = selIndexes[0]
ausNode = self._adminUnitTreeModel._getNode(selIndex)
ausId = ausNode.data(2)
ausHandler = AdminSpatialUnitSet()
selAdminUnit = ausHandler.queryObject().filter(AdminSpatialUnitSet.id == ausId).first()
return selAdminUnit
def clearInputs(self):
'''
Clears the input controls.
'''
self.txtUnitCode.clear()
self.txtUnitName.clear()
class AdminUnitManager(QWidget, Ui_frmAdminUnitManager):
'''
Administrative Unit Manager Widget
'''
#Signal raised when the state (view/manage) of the widet changes.
stateChanged = pyqtSignal('bool')
def __init__(self, parent=None, State=VIEW):
QWidget.__init__(self, parent)
self.setupUi(self)
self._defaultEditTriggers = self.tvAdminUnits.editTriggers()
self._state = State
self._onStateChange()
self._notifBar = NotificationBar(self.vlNotification)
#Configure validating line edit controls
invalidMsg = "{} already exists."
self.txtUnitName.setModelAttr(AdminSpatialUnitSet, "Name")
self.txtUnitName.setInvalidMessage(invalidMsg)
self.txtUnitName.setNotificationBar(self._notifBar)
self.txtUnitCode.setModelAttr(AdminSpatialUnitSet, "Code")
self.txtUnitCode.setInvalidMessage(invalidMsg)
self.txtUnitCode.setNotificationBar(self._notifBar)
'''
Initialize formatter for the rendering the admin unit nodes and insert
the root node into the tree view model.
'''
self._adminUnitNodeFormatter = AdminUnitFormatter(
self.tvAdminUnits, self)
self._rtNode = self._adminUnitNodeFormatter.rootNode
self._adminUnitTreeModel = STRTreeViewModel(
self._adminUnitNodeFormatter.root(), view=self.tvAdminUnits)
self.tvAdminUnits.setModel(self._adminUnitTreeModel)
self.tvAdminUnits.hideColumn(2)
self.tvAdminUnits.setColumnWidth(0, 250)
#Connects slots
self.connect(self.btnAdd, SIGNAL("clicked()"), self.onCreateAdminUnit)
self.connect(self.btnClear, SIGNAL("clicked()"), self.onClearSelection)
self.connect(self.btnRemove, SIGNAL("clicked()"),
self.onDeleteSelection)
self.connect(
self._adminUnitTreeModel,
SIGNAL("dataChanged(const QModelIndex&,const QModelIndex&)"),
self.onModelDataChanged)
def state(self):
'''
Returns the current state that the widget has been configured in.
'''
return self._state
def setState(self, state):
'''
Set the state of the widget.
'''
self._state = state
self._onStateChange()
def notificationBar(self):
'''
Returns the application notification widget.
'''
return self._notifBar
def _onStateChange(self):
'''
Configure controls upon changing the state of the widget.
'''
manageControls = False if self._state == VIEW else True
self.btnRemove.setVisible(manageControls)
self.btnClear.setVisible(manageControls)
self.gbManage.setVisible(manageControls)
if manageControls:
self.tvAdminUnits.setEditTriggers(self._defaultEditTriggers)
else:
self.tvAdminUnits.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.stateChanged.emit(manageControls)
def onCreateAdminUnit(self):
'''
Slot raised on clicking to add a new administrative unit.
'''
self._notifBar.clear()
if self.txtUnitName.text() == "":
msg = QApplication.translate(
"AdminUnitManager",
"Name of the administrative unit cannot be empty.")
self._notifBar.insertErrorNotification(msg)
self.txtUnitName.setFocus()
return
if not self.txtUnitName.validate():
return
if self.txtUnitCode.text() == "":
msg = QApplication.translate(
"AdminUnitManager",
"Code of the administrative unit cannot be empty.")
self._notifBar.insertErrorNotification(msg)
self.txtUnitCode.setFocus()
return
if not self.txtUnitCode.validate():
return
#Get current row selection
selIndexes = self.tvAdminUnits.selectionModel().selectedRows(0)
if len(selIndexes) == 0:
#Get the number of items in the tree view
rootIndex = self.tvAdminUnits.rootIndex()
rowCount = self._adminUnitTreeModel.rowCount(rootIndex)
if rowCount > 0:
msg = QApplication.translate("AdminUnitManager",
"You have not selected any parent node for the new administrative unit. Do " \
"you want to add it as one of the topmost administrative units?\nClick Yes to " \
"proceed or No to cancel.")
selOption = QMessageBox.warning(
self,
QApplication.translate("AdminUnitManager",
"No Parent Node Selected"), msg,
QMessageBox.Yes | QMessageBox.No)
if selOption == QMessageBox.Yes:
parentNode = self._rtNode
#We are interested in the model index of the root node
parentModelIndex = rootIndex
parentModel = None
else:
return
#Do not prompt user and immediately add the administrative unit to the root node.
else:
parentNode = self._rtNode
parentModelIndex = rootIndex
parentModel = None
else:
#Get model index for the first column as this is where the new node will be added as the child
parentModelIndex = selIndexes[0]
parentNode = self._adminUnitTreeModel._getNode(parentModelIndex)
parentID = parentNode.data(2)
ausModel = AdminSpatialUnitSet()
parentModel = ausModel.queryObject().filter(
AdminSpatialUnitSet.id == parentID).first()
adminUnitModel = AdminSpatialUnitSet(self.txtUnitName.text(),
self.txtUnitCode.text(),
parentModel)
#Commit transaction to the database
adminUnitModel.save()
#Extract properties from the model
ausProps = self._adminUnitNodeFormatter._extractAdminUnitSetInfo(
adminUnitModel)
childNode = BaseSTRNode(ausProps, parentNode)
#Insert row into the view
self._adminUnitTreeModel.insertRows(parentNode.childCount(), 1,
parentModelIndex)
self.clearInputs()
def onClearSelection(self):
'''
Slot that removes any existing selections in the tree view.
'''
self.tvAdminUnits.selectionModel().clearSelection()
def onModelDataChanged(self, oldindex, newindex):
'''
Slot raised when the model data is changed.
'''
#Get model index containing ID property
refNode = self._adminUnitTreeModel._getNode(newindex)
ausID = refNode.data(2)
ausHandler = AdminSpatialUnitSet()
ausObj = ausHandler.queryObject().filter(
AdminSpatialUnitSet.id == ausID).first()
if ausObj != None:
attrColumn = newindex.column()
if attrColumn == 0:
ausObj.Name = refNode.data(0)
elif attrColumn == 1:
ausObj.Code = refNode.data(1)
ausObj.update()
def onDeleteSelection(self):
'''
Slot raised to delete current selection of administrative unit.
'''
self._notifBar.clear()
#Get current row selection
selIndexes = self.tvAdminUnits.selectionModel().selectedRows(2)
if len(selIndexes) == 0:
msg = QApplication.translate(
"AdminUnitManager",
"Please select the administrative unit to delete.")
self._notifBar.insertWarningNotification(msg)
else:
delmsg = QApplication.translate("AdminUnitManager",
"This action will delete the selected administrative unit plus any " \
"existing children under it. It cannot be undone.\nClick Yes to " \
"delete or No to cancel.")
selOption = QMessageBox.warning(
self,
QApplication.translate("AdminUnitManager", "Confirm deletion"),
delmsg, QMessageBox.Yes | QMessageBox.No)
if selOption == QMessageBox.Yes:
#Get the node in the current selection
delIndex = selIndexes[0]
ausNode = self._adminUnitTreeModel._getNode(delIndex)
ausId = ausNode.data(2)
ausHandler = AdminSpatialUnitSet()
ausObj = ausHandler.queryObject().filter(
AdminSpatialUnitSet.id == ausId).first()
if not ausObj is None:
ausObj.delete()
#Remove item in tree view
self._adminUnitTreeModel.removeRows(
delIndex.row(), 1, delIndex.parent())
#Notify user
self._notifBar.clear()
successmsg = QApplication.translate(
"AdminUnitManager",
"Administrative unit successfully deleted.")
self._notifBar.insertInfoNotification(successmsg)
def selectedAdministrativeUnit(self):
'''
Returns the selected administrative unit object otherwise, if there is no
selection then it returns None.
'''
selIndexes = self.tvAdminUnits.selectionModel().selectedRows(2)
if len(selIndexes) == 0:
selAdminUnit = None
else:
selIndex = selIndexes[0]
ausNode = self._adminUnitTreeModel._getNode(selIndex)
ausId = ausNode.data(2)
ausHandler = AdminSpatialUnitSet()
selAdminUnit = ausHandler.queryObject().filter(
AdminSpatialUnitSet.id == ausId).first()
return selAdminUnit
def clearInputs(self):
'''
Clears the input controls.
'''
self.txtUnitCode.clear()
self.txtUnitName.clear()
