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https://github.com/qgis/QGIS.git
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81b0930498
Most important changes: - introduced feature iterator for QgsVectorLayer - vector editing moved to QgsVectorEditBuffer - complete rework of undo/redo commands for vector layers - geometry cache separated from editing (QgsVectorLayerCache) - non-essential editing functionality moved to QgsVectorLayerEditUtils
43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
class QgsVectorLayerJoinBuffer
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{
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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();
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~QgsVectorLayerJoinBuffer();
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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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void addJoin( QgsVectorJoinInfo joinInfo );
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/**Removes a vector layer join*/
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void removeJoin( const QString& joinLayerId );
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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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*/
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void updateFields( QgsFields& fields );
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/**Calls cacheJoinLayer() for all vector joins*/
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void createJoinCaches();
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/**Saves mVectorJoins to xml under the layer node*/
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void writeXml( QDomNode& layer_node, QDomDocument& document ) const;
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/**Reads joins from project file*/
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void readXml( const QDomNode& layer_node );
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/**Quick way to test if there is any join at all*/
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bool containsJoins() const;
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const QList< QgsVectorJoinInfo >& vectorJoins() const;
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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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@param sourceFieldIndex Output: field's index in source layer */
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const QgsVectorJoinInfo* joinForFieldIndex( int index, const QgsFields& fields, int& sourceFieldIndex /Out/ ) const;
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};
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