Delete features (feature service)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 // [WriteFile Name=DeleteFeaturesFeatureService, Category=EditData] // [Legal] // Copyright 2016 Esri. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // [Legal]  #ifdef PCH_BUILD #include "pch.hpp" #endif // PCH_BUILD  // sample headers #include "DeleteFeaturesFeatureService.h"  // ArcGIS Maps SDK headers #include "ArcGISFeature.h" #include "AttributeListModel.h" #include "Basemap.h" #include "CalloutData.h" #include "Envelope.h" #include "Feature.h" #include "FeatureEditResult.h" #include "FeatureIterator.h" #include "FeatureLayer.h" #include "FeatureQueryResult.h" #include "IdentifyLayerResult.h" #include "LayerListModel.h" #include "Map.h" #include "MapQuickView.h" #include "MapTypes.h" #include "MapViewTypes.h" #include "Point.h" #include "QueryParameters.h" #include "ServiceFeatureTable.h" #include "SpatialReference.h" #include "Viewpoint.h"  // Qt headers #include <QFuture> #include <QMouseEvent> #include <QString> #include <QUrl> #include <QUuid>  // STL headers #include <memory>  using namespace Esri::ArcGISRuntime;  DeleteFeaturesFeatureService::DeleteFeaturesFeatureService(QQuickItem* parent) :  QQuickItem(parent) { }  DeleteFeaturesFeatureService::~DeleteFeaturesFeatureService() = default;  void DeleteFeaturesFeatureService::init() {  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");  qmlRegisterType<DeleteFeaturesFeatureService>("Esri.Samples", 1, 0, "DeleteFeaturesFeatureServiceSample");  qmlRegisterUncreatableType<CalloutData>("Esri.Samples", 1, 0, "CalloutData", "CalloutData is an uncreatable type"); }  void DeleteFeaturesFeatureService::componentComplete() {  QQuickItem::componentComplete();   // find QML MapView component  m_mapView = findChild<MapQuickView*>("mapView");  m_mapView->setWrapAroundMode(WrapAroundMode::Disabled);   // create a Map by passing in the Basemap  m_map = new Map(BasemapStyle::ArcGISStreets, this);  m_map->setInitialViewpoint(Viewpoint(Point(-10800000, 4500000, SpatialReference(102100)), 3e7));   // set map on the map view  m_mapView->setMap(m_map);   // create the ServiceFeatureTable  m_featureTable = new ServiceFeatureTable(QUrl("https://sampleserver6.arcgisonline.com/arcgis/rest/services/DamageAssessment/FeatureServer/0"), this);   // create the FeatureLayer with the ServiceFeatureTable and add it to the Map  m_featureLayer = new FeatureLayer(m_featureTable, this);  m_map->operationalLayers()->append(m_featureLayer);   connectSignals(); }  void DeleteFeaturesFeatureService::connectSignals() {  // connect to the mouse clicked signal on the MapQuickView  connect(m_mapView, &MapQuickView::mouseClicked, this, [this](QMouseEvent& mouseEvent)  {  // first clear the selection  m_featureLayer->clearSelection();   // set the properties for qml  emit hideWindow();   //! [DeleteFeaturesFeatureService identify feature]  // call identify on the map view  constexpr double tolerance = 5.0;  constexpr int maxResults = 1;  constexpr bool returnPopupsOnly = false;  m_mapView->identifyLayerAsync(m_featureLayer, mouseEvent.position(), tolerance, returnPopupsOnly, maxResults).then(this, [this](IdentifyLayerResult* rawIdentifyResult)  {  onIdentifyLayerCompleted_(rawIdentifyResult);  });  //! [DeleteFeaturesFeatureService identify feature]   // connect to the viewpoint changed signal on the MapQuickView  connect(m_mapView, &MapQuickView::viewpointChanged, this, [this]()  {  m_featureLayer->clearSelection();  emit hideWindow();  });  }); }  void DeleteFeaturesFeatureService::deleteSelectedFeature() {  m_featureTable->deleteFeatureAsync(m_selectedFeature).then(this, [this]()  {  // handle the completion of applyEditsAsync from the ServiceFeatureTable  m_featureTable->applyEditsAsync().then(this, [](const QList<FeatureEditResult*>& featureEditResults)  {  // obtain the first item in the list  FeatureEditResult* featureEditResult = featureEditResults.isEmpty() ? nullptr : featureEditResults.first();  // check if there were errors, and if not, log the new object ID  if (featureEditResult && !featureEditResult->isCompletedWithErrors())  qDebug() << "Successfully deleted Object ID:" << featureEditResult->objectId();  else  qDebug() << "Apply edits error.";   qDeleteAll(featureEditResults);  });  }); }  void DeleteFeaturesFeatureService::onIdentifyLayerCompleted_(IdentifyLayerResult* rawIdentifyResult) {  // Deletes rawIdentifyResult instance when we leave scope.  auto identifyResult = std::unique_ptr<IdentifyLayerResult>(rawIdentifyResult);   if (!identifyResult)  {  return;  }   if (identifyResult->geoElements().isEmpty())  {  return;  }   // delete selected feature member if not nullptr  if (m_selectedFeature)  {  delete m_selectedFeature;  m_selectedFeature = nullptr;  }   GeoElement* element = identifyResult->geoElements().at(0);  if (!element)  {  return;  }   // select the item in the result  QueryParameters query;  query.setObjectIds(QList<qint64> { element->attributes()->attributeValue(QStringLiteral("objectid")).toLongLong() });  m_featureLayer->selectFeaturesAsync(query, SelectionMode::New).then(this, [this](FeatureQueryResult* rawFeatureQueryResult)  {  onSelectFeaturesCompleted_(rawFeatureQueryResult);  });   // set selected feature member  m_selectedFeature = static_cast<ArcGISFeature*>(element);  // Don't delete the selected feature when the IdentityResult is deleted.  m_selectedFeature->setParent(this); }  void DeleteFeaturesFeatureService::onSelectFeaturesCompleted_(FeatureQueryResult* rawFeatureQueryResult) {  // Delete rawFeatureQueryResult pointer when we leave scope.  auto featureQueryResult = std::unique_ptr<FeatureQueryResult>(rawFeatureQueryResult);   FeatureIterator iter = featureQueryResult->iterator();  if (iter.hasNext())  {  Feature* feat = iter.next();  // emit signal for QML  const QString featureType = feat->attributes()->attributeValue(QStringLiteral("typdamage")).toString();  // Html tags used to bold and increase pt size of callout title.  m_mapView->calloutData()->setTitle(QString("<br><b><font size=\"+2\">%1</font></b>").arg(featureType));  m_mapView->calloutData()->setLocation(feat->geometry().extent().center());  emit featureSelected();  } }