Class: QgsTransactionGroup¶
- class qgis.core.QgsTransactionGroup(parent: QObject = None)¶
Bases:
PyQt5.QtCore.QObject
Constructor for QgsTransactionGroup
Methods
Add a layer to this transaction group.
Returns the connection string used by this transaction group.
Returns
True
if there are no layers in this transaction group.Gets the set of layers currently managed by this transaction group.
Returns
True
if any of the layers in this group reports a modification.Returns the provider key used by this transaction group.
Signals
pyqtSignal(*types, name: str = ..., revision: int = ..., arguments: Sequence = ...) -> PYQT_SIGNAL
- addLayer(self, layer: QgsVectorLayer) bool ¶
Add a layer to this transaction group.
Will return
True
if it is compatible and has been added.- Parameters:
layer (QgsVectorLayer) –
- Return type:
bool
- childEvent(self, QChildEvent)¶
- commitError¶
pyqtSignal(*types, name: str = …, revision: int = …, arguments: Sequence = …) -> PYQT_SIGNAL
types is normally a sequence of individual types. Each type is either a type object or a string that is the name of a C++ type. Alternatively each type could itself be a sequence of types each describing a different overloaded signal. name is the optional C++ name of the signal. If it is not specified then the name of the class attribute that is bound to the signal is used. revision is the optional revision of the signal that is exported to QML. If it is not specified then 0 is used. arguments is the optional sequence of the names of the signal’s arguments.
- Parameters:
name (str = ...) –
revision (int = ...) –
arguments (Sequence = ...) –
- Return type:
PYQT_SIGNAL
- connString(self) str ¶
Returns the connection string used by this transaction group. Layers need be compatible when added.
- Return type:
str
- connectNotify(self, QMetaMethod)¶
- customEvent(self, QEvent)¶
- disconnectNotify(self, QMetaMethod)¶
- isEmpty(self) bool ¶
Returns
True
if there are no layers in this transaction group.- Return type:
bool
- isSignalConnected(self, QMetaMethod) bool ¶
- layers(self) Set[QgsVectorLayer] ¶
Gets the set of layers currently managed by this transaction group.
- Return type:
Set[QgsVectorLayer]
- Returns:
Layer set
- modified(self) bool ¶
Returns
True
if any of the layers in this group reports a modification.- Return type:
bool
- providerKey(self) str ¶
Returns the provider key used by this transaction group. Layers need be compatible when added.
- Return type:
str
- receivers(self, PYQT_SIGNAL) int ¶
- sender(self) QObject ¶
- senderSignalIndex(self) int ¶
- timerEvent(self, QTimerEvent)¶