Class: QgsExpressionNodeCondition¶
-
class
qgis.core.
QgsExpressionNodeCondition
(conditions: object, elseExp: QgsExpressionNode = None)¶ Bases:
qgis._core.QgsExpressionNode
Create a new node with the given list of
conditions
and an optionalelseExp
expression.QgsExpressionNodeCondition(QgsExpressionNodeCondition)
An expression node for CASE WHEN clauses.
Enums
Methods
The list of WHEN THEN expression parts of the expression.
The ELSE expression used for the condition.
Signals
Attributes
-
class
WhenThen
(whenExp: QgsExpressionNode, thenExp: QgsExpressionNode)¶ Bases:
sip.wrapper
A combination of when and then. Simple as that.
Represents a “WHEN… THEN…” portation of a CASE WHEN clause in an expression.
-
clone
(self) → QgsExpressionNodeCondition.WhenThen¶ Gets a deep copy of this WhenThen combination.
-
thenExp
(self) → QgsExpressionNode¶ The expression node that makes the THEN result part of the condition.
- Returns
The expression node that makes the THEN result part of the condition.
-
whenExp
(self) → QgsExpressionNode¶ The expression that makes the WHEN part of the condition.
- Returns
The expression node that makes the WHEN part of the condition check.
-
-
clone
(self) → QgsExpressionNode¶
-
conditions
(self) → object¶ The list of WHEN THEN expression parts of the expression.
- Returns
The list of WHEN THEN expression parts of the expression.
-
dump
(self) → str¶
-
elseExp
(self) → QgsExpressionNode¶ The ELSE expression used for the condition.
- Returns
The ELSE expression used for the condition.
-
evalNode
(self, parent: QgsExpression, context: QgsExpressionContext) → Any¶
-
isStatic
(self, parent: QgsExpression, context: QgsExpressionContext) → bool¶
-
needsGeometry
(self) → bool¶
-
nodeType
(self) → QgsExpressionNode.NodeType¶
-
prepareNode
(self, parent: QgsExpression, context: QgsExpressionContext) → bool¶
-
referencedColumns
(self) → Set[str]¶
-
referencedFunctions
(self) → Set[str]¶
-
referencedVariables
(self) → Set[str]¶
-
class