QgsMapLayerDependency class

This class models dependencies with or between map layers.

A dependency is defined by a layer ID, a type and an origin. The two combinations of type/origin that are currently supported are:

• PresenceDependency && FromProvider: virtual layers for instance which may depend on other layers already loaded to work
• DataDependency && FromUser: dependencies given by the user, mainly to represent database triggers

Public types

enum Origin { FromProvider = 0, FromUser = 1 }

Origin of the dependency.

enum Type { PresenceDependency = 1, DataDependency = 2 }

Type of dependency.

Constructors, destructors, conversion operators

QgsMapLayerDependency(const QString& layerId, Type type = DataDependency, Origin origin = FromUser)

Standard constructor.

Public functions

auto layerId() const -> QString

Returns the ID of the layer this dependency depends on.

auto operator==(const QgsMapLayerDependency& other) const -> bool

Comparison operator.

auto origin() const -> Origin

Returns the dependency origin.

auto type() const -> Type

Returns the dependency type.