Class: QgsExpressionNodeIndexOperator¶

class qgis.core.QgsExpressionNodeIndexOperator(container: QgsExpressionNode, index: QgsExpressionNode)¶

Bases: qgis._core.QgsExpressionNode

Constructor for QgsExpressionNodeIndexOperator.

QgsExpressionNodeIndexOperator(QgsExpressionNodeIndexOperator)

A indexing expression operator, which allows use of square brackets [] to reference map and array items.

New in version 3.6: Enums

Methods

`clone`
`container`	Returns the container node, representing an array or map value.
`dump`
`evalNode`
`index`	Returns the index node, representing an array element index or map key.
`isStatic`
`needsGeometry`
`nodeType`
`prepareNode`
`referencedColumns`
`referencedFunctions`
`referencedVariables`

Signals

Attributes

container(self) → QgsExpressionNode¶: Returns the container node, representing an array or map value.

See also

index()

evalNode(self, parent: QgsExpression, context: QgsExpressionContext) → Any¶

index(self) → QgsExpressionNode¶: Returns the index node, representing an array element index or map key.

See also

container()

isStatic(self, parent: QgsExpression, context: QgsExpressionContext) → bool¶

prepareNode(self, parent: QgsExpression, context: QgsExpressionContext) → bool¶