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256 lines
7.7 KiB
Plaintext
256 lines
7.7 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsvectorlayerjoinbuffer.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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typedef QList< QgsVectorLayerJoinInfo > QgsVectorJoinList;
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class QgsVectorLayerJoinBuffer : QObject, QgsFeatureSink
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{
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%Docstring
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Manages joined fields for a vector layer.
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%End
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%TypeHeaderCode
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#include "qgsvectorlayerjoinbuffer.h"
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%End
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public:
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QgsVectorLayerJoinBuffer( QgsVectorLayer *layer = 0 );
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bool addJoin( const QgsVectorLayerJoinInfo &joinInfo );
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%Docstring
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Joins another vector layer to this layer
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:param joinInfo: join object containing join layer id, target and source field
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:return: (since 2.6) whether the join was successfully added
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%End
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bool removeJoin( const QString &joinLayerId );
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%Docstring
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Removes a vector layer join
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:return: ``True`` if join was found and successfully removed
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%End
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void updateFields( QgsFields &fields );
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%Docstring
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Updates field map with joined attributes
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:param fields: map to append joined attributes
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%End
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void createJoinCaches();
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%Docstring
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Calls :py:func:`~QgsVectorLayerJoinBuffer.cacheJoinLayer` for all vector joins
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%End
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void writeXml( QDomNode &layer_node, QDomDocument &document ) const;
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%Docstring
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Saves mVectorJoins to xml under the layer node
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%End
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void readXml( const QDomNode &layer_node );
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%Docstring
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Reads joins from project file.
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Does not resolve layer IDs to layers - call :py:func:`~QgsVectorLayerJoinBuffer.resolveReferences` afterwards
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%End
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void resolveReferences( QgsProject *project );
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%Docstring
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Resolves layer IDs of joined layers using given project's available layers
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.. versionadded:: 3.0
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%End
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bool containsJoins() const;
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%Docstring
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Quick way to test if there is any join at all
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%End
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const QgsVectorJoinList &vectorJoins() const;
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const QgsVectorLayerJoinInfo *joinForFieldIndex( int index, const QgsFields &fields, int &sourceFieldIndex /Out/ ) const;
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%Docstring
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Finds the vector join for a layer field index.
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:param index: this layers attribute index
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:param fields: fields of the vector layer (including joined fields)
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:return: - the vector layer join info
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- sourceFieldIndex: Output: field's index in source layer
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%End
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int joinedFieldsOffset( const QgsVectorLayerJoinInfo *info, const QgsFields &fields );
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%Docstring
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Find out what is the first index of the join within fields. Returns -1 if join is not present
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.. versionadded:: 2.6
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%End
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static QVector<int> joinSubsetIndices( QgsVectorLayer *joinLayer, const QStringList &joinFieldsSubset );
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%Docstring
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Returns a vector of indices for use in join based on field names from the layer
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.. versionadded:: 2.6
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%End
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QList<const QgsVectorLayerJoinInfo *> joinsWhereFieldIsId( const QgsField &field ) const;
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%Docstring
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Returns joins where the field of a target layer is considered as an id.
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:param field: the field of a target layer
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:return: a list of vector joins
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.. versionadded:: 3.0
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%End
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QgsFeature joinedFeatureOf( const QgsVectorLayerJoinInfo *info, const QgsFeature &feature ) const;
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%Docstring
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Returns the joined feature corresponding to the feature.
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:param info: the vector join information
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:param feature: the feature of the target layer
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.. versionadded:: 3.0
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%End
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QgsFeature targetedFeatureOf( const QgsVectorLayerJoinInfo *info, const QgsFeature &feature ) const;
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%Docstring
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Returns the targeted feature corresponding to the joined feature.
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:param info: the vector join information
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:param feature: the feature of the joined layer
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.. versionadded:: 3.0
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%End
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bool isAuxiliaryJoin( const QgsVectorLayerJoinInfo &info ) const;
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%Docstring
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Returns ``True`` if the join information is about auxiliary layer, ``False`` otherwise
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:param info: The join information
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:return: ``True`` if the join information is about auxiliary layer, ``False`` otherwise
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.. versionadded:: 3.0
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%End
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QgsVectorLayerJoinBuffer *clone() const /Factory/;
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%Docstring
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Create a copy of the join buffer
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.. versionadded:: 2.6
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%End
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virtual bool addFeatures( QgsFeatureList &features, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() );
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%Docstring
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Adds a list of features in joined layers. Features given in parameter
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are those added in target layer. If a corresponding joined feature yet
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exists in a joined layer, then this feature is just updated. Note that
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if a corresponding joined feature has only empty fields, then it's not
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created nor added.
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:param features: The list of features added in the target layer
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:param flags: Unused parameter
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:return: ``False`` if an error happened, ``True`` otherwise
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.. versionadded:: 3.0
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%End
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bool changeAttributeValue( QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue = QVariant() );
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%Docstring
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Changes attribute value in joined layers. The feature id given in
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parameter is the one added in target layer. If the corresponding joined
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feature does not exist in a joined layer, then it's automatically
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created if its fields are not empty.
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:param fid: The feature id
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:param field: The field to update
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:param newValue: The new value of the attribute
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:param oldValue: The old value of the attribute
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:return: ``False`` if an error happened, ``True`` otherwise
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.. versionadded:: 3.0
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%End
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bool changeAttributeValues( QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues = QgsAttributeMap() );
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%Docstring
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Changes attributes' values in joined layers. The feature id given in
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parameter is the one added in target layer. If the corresponding joined
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feature does not exist in a joined layer, then it's automatically
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created if its fields are not empty.
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:param fid: The feature id
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:param newValues: The new values for attributes
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:param oldValues: The old values for attributes
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:return: ``False`` if an error happened, ``True`` otherwise
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.. versionadded:: 3.0
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%End
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bool deleteFeature( QgsFeatureId fid, QgsVectorLayer::DeleteContext *context = 0 ) const;
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%Docstring
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Deletes a feature from joined layers. The feature id given in
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parameter is the one coming from the target layer.
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:param fid: The feature id from the target layer to delete
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:param context: The chain of features which will be deleted for feedback and to avoid infinite recursions. Can be ``None``.
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:return: ``False`` if an error happened, ``True`` otherwise
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.. versionadded:: 3.0
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%End
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bool deleteFeatures( const QgsFeatureIds &fids, QgsVectorLayer::DeleteContext *context = 0 ) const;
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%Docstring
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Deletes a list of features from joined layers. Feature ids given
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in a parameter are those coming from the target layer.
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:param fids: Feature ids from the target layer to delete
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:param context: The chain of features who will be deleted for feedback and to avoid infinite recursions. Can be ``None``.
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:return: ``False`` if an error happened, ``True`` otherwise
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.. versionadded:: 3.0
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%End
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signals:
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void joinedFieldsChanged();
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%Docstring
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Emitted whenever the list of joined fields changes (e.g. added join or joined layer's fields change)
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.. versionadded:: 2.6
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%End
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsvectorlayerjoinbuffer.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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