Class ReferencingFeatureListModelBase

ClassList > ReferencingFeatureListModelBase

Inherits the following classes: QAbstractItemModel

Inherited by the following classes: OrderedRelationModel

Public Types

Type	Name
enum	ReferencedFeatureListRoles

Public Properties

Type	Name
property QString	currentNmRelationId
property QString	currentRelationId
property QgsFeature	feature
property bool	isLoading
property QgsRelation	nmRelation
property bool	parentPrimariesAvailable
property QgsRelation	relation

Public Signals

Type	Name
signal void	attributeFormModelChanged
signal void	beforeModelUpdated
signal void	featureChanged
signal void	isLoadingChanged
signal void	modelUpdated
signal void	nmRelationChanged
signal void	parentPrimariesAvailableChanged
signal void	relationChanged

Public Functions

Type	Name
	ReferencingFeatureListModelBase (QObject * parent=nullptr)
int	columnCount (const QModelIndex & parent=QModelIndex()) override const
QString	currentNmRelationId () const On many-to-many relations returns the second relation id connecting the children in the association table to their other parent.
QString	currentRelationId () const Returns the id of the relation connecting the parent feature with the children in this model.
QVariant	data (const QModelIndex & index, int role=Qt::DisplayRole) override const
Q_INVOKABLE bool	deleteFeature (QgsFeatureId referencingFeatureId)
QgsFeature	feature () const
Q_INVOKABLE int	getFeatureIdRow (QgsFeatureId featureId)
QModelIndex	index (int row, int column, const QModelIndex & parent=QModelIndex()) override const
bool	isLoading () const
QgsRelation	nmRelation () const
QModelIndex	parent (const QModelIndex & index) override const
bool	parentPrimariesAvailable () const
QgsRelation	relation () const
Q_INVOKABLE void	reload ()
QHash< int, QByteArray >	roleNames () override const
int	rowCount (const QModelIndex & parent=QModelIndex()) override const
void	setCurrentNmRelationId (const QString & nmRelationId) On many-to-many relations sets the second relation connecting the children in the association table to their other parent.
void	setCurrentRelationId (const QString & relationId) Sets the relation connecting the parent feature with the children in this model.
void	setFeature (const QgsFeature & feature)
void	setNmRelation (const QgsRelation & relation)
void	setParentPrimariesAvailable (const bool parentPrimariesAvailable)
void	setRelation (const QgsRelation & relation)

Public Types Documentation

enum ReferencedFeatureListRoles

enum ReferencingFeatureListModelBase::ReferencedFeatureListRoles {
    DisplayString = Qt::UserRole,
    ReferencingFeature,
    NmReferencedFeature,
    NmDisplayString
};

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Public Properties Documentation

property currentNmRelationId [1/2]

QString ReferencingFeatureListModelBase::currentNmRelationId;

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property currentRelationId [1/2]

QString ReferencingFeatureListModelBase::currentRelationId;

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property feature [1/2]

QgsFeature ReferencingFeatureListModelBase::feature;

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property isLoading [1/2]

bool ReferencingFeatureListModelBase::isLoading;

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property nmRelation [1/2]

QgsRelation ReferencingFeatureListModelBase::nmRelation;

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property parentPrimariesAvailable [1/2]

bool ReferencingFeatureListModelBase::parentPrimariesAvailable;

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property relation [1/2]

QgsRelation ReferencingFeatureListModelBase::relation;

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Public Signals Documentation

signal attributeFormModelChanged

void ReferencingFeatureListModelBase::attributeFormModelChanged;

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signal beforeModelUpdated

void ReferencingFeatureListModelBase::beforeModelUpdated;

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signal featureChanged

void ReferencingFeatureListModelBase::featureChanged;

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signal isLoadingChanged

void ReferencingFeatureListModelBase::isLoadingChanged;

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signal modelUpdated

void ReferencingFeatureListModelBase::modelUpdated;

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signal nmRelationChanged

void ReferencingFeatureListModelBase::nmRelationChanged;

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signal parentPrimariesAvailableChanged

void ReferencingFeatureListModelBase::parentPrimariesAvailableChanged;

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signal relationChanged

void ReferencingFeatureListModelBase::relationChanged;

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Public Functions Documentation

function ReferencingFeatureListModelBase

explicit ReferencingFeatureListModelBase::ReferencingFeatureListModelBase (
    QObject * parent=nullptr
) 

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function columnCount

int ReferencingFeatureListModelBase::columnCount (
    const QModelIndex & parent=QModelIndex()
) override const

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function currentNmRelationId [2/2]

On many-to-many relations returns the second relation id connecting the children in the association table to their other parent.

QString ReferencingFeatureListModelBase::currentNmRelationId () const

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function currentRelationId [2/2]

Returns the id of the relation connecting the parent feature with the children in this model.

QString ReferencingFeatureListModelBase::currentRelationId () const

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function data

QVariant ReferencingFeatureListModelBase::data (
    const QModelIndex & index,
    int role=Qt::DisplayRole
) override const

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function deleteFeature

Q_INVOKABLE bool ReferencingFeatureListModelBase::deleteFeature (
    QgsFeatureId referencingFeatureId
) 

Deletes a feature regarding the referencing layer and the feature id of the selected child

Parameters:

• referencingFeatureId id of the selected child

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function feature [2/2]

QgsFeature ReferencingFeatureListModelBase::feature () const

The parent feature for which this model contains the children

Returns:

the parent feature

See also: setFeature

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function getFeatureIdRow

Q_INVOKABLE int ReferencingFeatureListModelBase::getFeatureIdRow (
    QgsFeatureId featureId
) 

Returns the row number for a given feature id

Parameters:

• featureId the feature id

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function index

QModelIndex ReferencingFeatureListModelBase::index (
    int row,
    int column,
    const QModelIndex & parent=QModelIndex()
) override const

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function isLoading [2/2]

bool ReferencingFeatureListModelBase::isLoading () const

Indicator if the model is currently performing any feature iteration in the background.

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function nmRelation [2/2]

QgsRelation ReferencingFeatureListModelBase::nmRelation () const

On many-to-many relations this is the second relation connecting the children in the associationtable to their other parent

Returns:

associated relation

See also: setNmRelation

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function parent

QModelIndex ReferencingFeatureListModelBase::parent (
    const QModelIndex & index
) override const

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function parentPrimariesAvailable [2/2]

bool ReferencingFeatureListModelBase::parentPrimariesAvailable () const

The status if the pk of the parent feature (this feature) are valid (not null) It's needed to check on opening a form to add a new child

Returns:

parentPrimariesAvailable The status if the parent pks are available

See also: setParentPrimariesAvailable

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function relation [2/2]

QgsRelation ReferencingFeatureListModelBase::relation () const

The relation connecting the parent feature with the children in this model

Returns:

relation

See also: setRelation

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function reload

Q_INVOKABLE void ReferencingFeatureListModelBase::reload () 

Reloads the model by starting the reload functionality in the gatherer (seperate thread) Sets the property parentPrimariesAvailable

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function roleNames

QHash< int, QByteArray > ReferencingFeatureListModelBase::roleNames () override const

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function rowCount

int ReferencingFeatureListModelBase::rowCount (
    const QModelIndex & parent=QModelIndex()
) override const

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function setCurrentNmRelationId

On many-to-many relations sets the second relation connecting the children in the association table to their other parent.

void ReferencingFeatureListModelBase::setCurrentNmRelationId (
    const QString & nmRelationId
) 

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function setCurrentRelationId

Sets the relation connecting the parent feature with the children in this model.

void ReferencingFeatureListModelBase::setCurrentRelationId (
    const QString & relationId
) 

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function setFeature

void ReferencingFeatureListModelBase::setFeature (
    const QgsFeature & feature
) 

The parent feature for which this model contains the children

Parameters:

• feature

See also: feature

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function setNmRelation

void ReferencingFeatureListModelBase::setNmRelation (
    const QgsRelation & relation
) 

On many-to-many relations this is the second relation connecting the children in the associationtable to their other parent

Parameters:

• relation The associated relation

See also: nmRelation

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function setParentPrimariesAvailable

void ReferencingFeatureListModelBase::setParentPrimariesAvailable (
    const bool parentPrimariesAvailable
) 

The status if the pk of the parent feature (this feature) are valid (not null)

Parameters:

• parentPrimariesAvailable The status if the parent pks are available

See also: parentPrimariesAvailable

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function setRelation

void ReferencingFeatureListModelBase::setRelation (
    const QgsRelation & relation
) 

The relation connecting the parent feature with the children in this model

Parameters:

• relation

See also: relation

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The documentation for this class was generated from the following file src/core/referencingfeaturelistmodel.h