Merge pull request #5925 from signedav/duplicateChildsRelation

[FEATURE] Duplicate child feature in releationwidget of attributeform

src/gui/qgsrelationeditorwidget.cpp

@@ -66,6 +66,13 @@ QgsRelationEditorWidget::QgsRelationEditorWidget( QWidget *parent )
   mAddFeatureButton->setToolTip( tr( "Add child feature" ) );
   mAddFeatureButton->setObjectName( QStringLiteral( "mAddFeatureButton" ) );
   buttonLayout->addWidget( mAddFeatureButton );
+  // duplicate feature
+  mDuplicateFeatureButton = new QToolButton( this );
+  mDuplicateFeatureButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionDuplicateFeature.svg" ) ) );
+  mDuplicateFeatureButton->setText( tr( "Duplicate child feature" ) );
+  mDuplicateFeatureButton->setToolTip( tr( "Duplicate child feature" ) );
+  mDuplicateFeatureButton->setObjectName( QStringLiteral( "mDuplicateFeatureButton" ) );
+  buttonLayout->addWidget( mDuplicateFeatureButton );
   // delete feature
   mDeleteFeatureButton = new QToolButton( this );
   mDeleteFeatureButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionDeleteSelected.svg" ) ) );
@@ -130,6 +137,7 @@ QgsRelationEditorWidget::QgsRelationEditorWidget( QWidget *parent )
   connect( mToggleEditingButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::toggleEditing );
   connect( mSaveEditsButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::saveEdits );
   connect( mAddFeatureButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::addFeature );
+  connect( mDuplicateFeatureButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::duplicateFeature );
   connect( mDeleteFeatureButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::deleteFeature );
   connect( mLinkFeatureButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::linkFeature );
   connect( mUnlinkFeatureButton, &QAbstractButton::clicked, this, &QgsRelationEditorWidget::unlinkFeature );
@@ -286,6 +294,7 @@ void QgsRelationEditorWidget::updateButtons()
   }
 
   mAddFeatureButton->setEnabled( editable );
+  mDuplicateFeatureButton->setEnabled( editable && selectionNotEmpty );
   mLinkFeatureButton->setEnabled( linkable );
   mDeleteFeatureButton->setEnabled( editable && selectionNotEmpty );
   mUnlinkFeatureButton->setEnabled( linkable && selectionNotEmpty );
@@ -425,6 +434,19 @@ void QgsRelationEditorWidget::linkFeature()
   }
 }
 
+void QgsRelationEditorWidget::duplicateFeature()
+{
+  QgsVectorLayer *layer = mRelation.referencingLayer();
+
+  QgsFeatureIterator fit = layer->getFeatures( QgsFeatureRequest().setFilterFids( mFeatureSelectionMgr->selectedFeatureIds() ) );
+  QgsFeature f;
+  while ( fit.nextFeature( f ) )
+  {
+    QgsVectorLayerUtils::QgsDuplicateFeatureContext duplicatedFeatureContext;
+    QgsVectorLayerUtils::duplicateFeature( layer, f, QgsProject::instance(), 0, duplicatedFeatureContext );
+  }
+}
+
 void QgsRelationEditorWidget::deleteFeature()
 {
   QgsVectorLayer *layer = nullptr;

src/gui/qgsrelationeditorwidget.h

@@ -146,6 +146,7 @@ class GUI_EXPORT QgsRelationEditorWidget : public QgsCollapsibleGroupBox
     void updateButtons();
 
     void addFeature();
+    void duplicateFeature();
     void linkFeature();
     void deleteFeature();
     void unlinkFeature();
@@ -167,6 +168,7 @@ class GUI_EXPORT QgsRelationEditorWidget : public QgsCollapsibleGroupBox
     QToolButton *mToggleEditingButton = nullptr;
     QToolButton *mSaveEditsButton = nullptr;
     QToolButton *mAddFeatureButton = nullptr;
+    QToolButton *mDuplicateFeatureButton = nullptr;
     QToolButton *mDeleteFeatureButton = nullptr;
     QToolButton *mLinkFeatureButton = nullptr;
     QToolButton *mUnlinkFeatureButton = nullptr;