16 #ifndef QGSRELATIONREFERENCEFIELDKIT_H 
   17 #define QGSRELATIONREFERENCEFIELDKIT_H 
   19 #include "qgis_core.h" 
   40     QString 
id() 
const override;
 
   42     QString 
representValue( 
QgsVectorLayer *layer, 
int fieldIndex, 
const QVariantMap &config, 
const QVariant &cache, 
const QVariant &value ) 
const override;
 
   44     QVariant 
sortValue( 
QgsVectorLayer *layer, 
int fieldIndex, 
const QVariantMap &config, 
const QVariant &cache, 
const QVariant &value ) 
const override;
 
A context for field formatter containing information like the project.
Represents a vector layer which manages a vector based data sets.