39 QVariantMap
config()
override;
40 void setConfig(
const QVariantMap &config )
override;
44 void addFilterField(
const QString &field );
45 void addFilterField( QListWidgetItem *item );
46 int indexFromListWidgetItem( QListWidgetItem *item );
49 bool mAllowNullWasSetByConfig =
false;
52 void relationChanged(
int idx );
53 void mAddFilterButton_clicked();
54 void mRemoveFilterButton_clicked();
59 void mEditExpression_clicked();
61 friend class TestQgsRelationReferenceWidget;