topic Re: feature in ArcGIS JavaScript Maps SDK Questions

feature

anjelinaponkerat — Wed, 31 Jan 2018 07:17:04 GMT

I,m going to change portal item in edit sample and add feature layer, but no result:

var MyFeature = new FeatureLayer({
url: "https://localhost:6080/arcgis/rest/services/Texass_Layer/FeatureServer/4",

visible:true,
});

How to replace feature layer instead of portal item in this sample?:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<title>Update FeatureLayer using applyEdits() - 4.6</title>

.editArea-container {
background: #fff;
font-family: "Avenir Next W00", "Helvetica Neue", Helvetica, Arial, sans-serif;
line-height: 1.5em;
overflow: auto;
padding: 12px 15px;
width: 300px;
}

.edit-button:hover,
.edit-button:focus {
background-color: #e4e4e4;
}

.inputInfo {
font-size: 12px;
height: 32px;
margin-bottom: 6px;
padding: 0 6px;
width: 100%;
}

.list-heading {
font-weight: normal;
margin-top: 20px;
margin-bottom: 10px;
color: #323232;
}

.edit-button {
font-size: 14px;
height: 32px;
margin-top: 10px;
width: 100%;
background-color: transparent;
border: 1px solid #0079c1;
color: #0079c1;
}

.or-wrap {
background-color: #e0e0e0;
height: 1px;
margin: 2em 0;
overflow: visible;
}

.or-text {
background: #fff;
line-height: 0;
padding: 0 1em;
position: relative;
top: -.75em;
}

input:invalid {
border: 1px solid red;
}

input:valid {
border: 1px solid green;
}
</style>

var featureLayer, editExpand;

// feature edit area domNodes
var editArea, attributeEditing, inputDescription,
inputUserInfo, updateInstructionDiv;

var map = new Map({
basemap: "streets"
});

// initial extent of the view and home button
var initialExtent = new Extent({
xmin: -13045631,
xmax: -13042853,
ymin: 4034880,
ymax: 4034881,
spatialReference: 102100
});

var view = new SceneView({
container: "viewDiv",
map: map,
extent: initialExtent
});

// add an editable featurelayer from portal
Layer.fromPortalItem({
portalItem: { // autocasts as new PortalItem()
id: "511b97fc0d364367b127f8ba5c89ad13"
}
}).then(addLayer)
.otherwise(handleLayerLoadError);

setupEditing();
setupView();

function addLayer(lyr) {
featureLayer = lyr;
map.add(lyr);
}

function applyEdits(params) {
unselectFeature();
var promise = featureLayer.applyEdits(params);
editResultsHandler(promise);
}

// *****************************************************
// applyEdits promise resolved successfully
// query the newly created feature from the featurelayer
// set the editFeature object so that it can be used
// to update its features.
// *****************************************************
function editResultsHandler(promise) {
promise
.then(function(editsResult) {
var extractObjectId = function(result) {
return result.objectId;
};

// get the objectId of the newly added feature
if (editsResult.addFeatureResults.length > 0) {
var adds = editsResult.addFeatureResults.map(
extractObjectId);
newIncidentId = adds[0];

selectFeature(newIncidentId);
}
})
.otherwise(function(error) {
console.log("===============================================");
console.error("[ applyEdits ] FAILURE: ", error.code, error.name,
error.message);
console.log("error = ", error);
});
}

// *****************************************************
// listen to click event on the view
// 1. select if there is an intersecting feature
// 2. set the instance of editFeature
// 3. editFeature is the feature to update or delete
// *****************************************************
view.on("click", function(evt) {
unselectFeature();
view.hitTest(evt).then(function(response) {
if (response.results.length > 0 && response.results[0].graphic) {

var feature = response.results[0].graphic;
selectFeature(feature.attributes[featureLayer.objectIdField]);

inputDescription.value = feature.attributes[
"Incident_Desc"];
inputUserInfo.value = feature.attributes[
"Incident_Address"];
attributeEditing.style.display = "block";
updateInstructionDiv.style.display = "none";
}
});
});

// *****************************************************
// select Feature function
// 1. Select the newly created feature on the view
// 2. or select an existing feature when user click on it
// 3. Symbolize the feature with cyan rectangle
// *****************************************************
function selectFeature(objectId) {
// symbol for the selected feature on the view
var selectionSymbol = {
type: "simple-marker", // autocasts as new SimpleMarkerSymbol()
color: [0, 0, 0, 0],
style: "square",
size: "40px",
outline: {
color: [0, 255, 255, 1],
width: "3px"
}
};
var query = featureLayer.createQuery();
query.where = featureLayer.objectIdField + " = " + objectId;

featureLayer.queryFeatures(query).then(function(results) {
if (results.features.length > 0) {
editFeature = results.features[0];
editFeature.symbol = selectionSymbol;
view.graphics.add(editFeature);
}
});
}

// *****************************************************
// hide attributes update and delete part when necessary
// *****************************************************
function unselectFeature() {
attributeEditing.style.display = "none";
updateInstructionDiv.style.display = "block";

inputDescription.value = null;
inputUserInfo.value = null;
view.graphics.removeAll();
}

// *****************************************************
// add homeButton and expand widgets to UI
// *****************************************************
function setupView() {
// set home buttone view point to initial extent
var homeButton = new Home({
view: view,
viewpoint: new Viewpoint({
targetGeometry: initialExtent
})
});
view.ui.add(homeButton, "top-left");

// expand widget
editExpand = new Expand({
expandIconClass: "esri-icon-edit",
expandTooltip: "Expand Edit",
expanded: true,
view: view,
content: editArea
});
view.ui.add(editExpand, "top-right");
}

// *****************************************************
// set up for editing
// *****************************************************
function setupEditing() {
// input boxes for the attribute editing
editArea = dom.byId("editArea");
updateInstructionDiv = dom.byId("updateInstructionDiv");
attributeEditing = dom.byId("featureUpdateDiv");
inputDescription = dom.byId("inputDescription");
inputUserInfo = dom.byId("inputUserInfo");

// *****************************************************
// btnUpdate click event
// update attributes of selected feature
// *****************************************************
on(dom.byId("btnUpdate"), "click", function(evt) {
if (editFeature) {
editFeature.attributes["Incident_Desc"] = inputDescription.value;
editFeature.attributes["Incident_Address"] = inputUserInfo.value;

var edits = {
updateFeatures: [editFeature]
};

applyEdits(edits);
}
});

// *****************************************************
// btnAddFeature click event
// create a new feature at the click location
// *****************************************************
on(dom.byId("btnAddFeature"), "click", function() {
unselectFeature();
on.once(view, "click", function(event) {
event.stopPropagation();

if (event.mapPoint) {
point = event.mapPoint.clone();
point.z = undefined;
point.hasZ = false;

newIncident = new Graphic({
geometry: point,
attributes: {}
});

var edits = {
addFeatures: [newIncident]
};

applyEdits(edits);

// ui changes in response to creating a new feature
// display feature update and delete portion of the edit area
attributeEditing.style.display = "block";
updateInstructionDiv.style.display = "none";
dom.byId("viewDiv").style.cursor = "auto";
}
else {
console.error("event.mapPoint is not defined");
}
});

// change the view's mouse cursor once user selects
// a new incident type to create
dom.byId("viewDiv").style.cursor = "crosshair";
editArea.style.cursor = "auto";
});

// *****************************************************
// delete button click event. ApplyEdits is called
// with the selected feature to be deleted
// *****************************************************
on(dom.byId("btnDelete"), "click", function() {
var edits = {
deleteFeatures: [editFeature]
};
applyEdits(edits);
});

// *****************************************************
// watch for view LOD change. Display Feature editing
// area when view.zoom level is 14 or higher
// otherwise hide the feature editing area
// *****************************************************
view.when(function() {
watchUtils.whenTrue(view, "stationary", function() {
if (editExpand) {
if (view.zoom <= 14) {
editExpand.domNode.style.display = "none";
}
else {
editExpand.domNode.style.display = "block";
}
}
});
});
}

function handleLayerLoadError(err) {
console.log("Layer failed to load: ", err);
}
});
</script>
</head>

<body>
<div id="editArea" class="editArea-container">
<div id="addFeatureDiv">
<h3 class="list-heading">Report Incidents</h3>
<ul style="font-size: 13px; padding-left: 1.5em;">
<li>Click Add incident button</li>
<li>Click on the map to create the incident</li>
</ul>
<input type="button" class="edit-button" value="Add incident" id="btnAddFeature">
</div>

<div id="updateInstructionDiv" style="text-align:center">
<p class="or-wrap"><span class="or-text">Or</span></p>
<p>Select an incident to edit or delete.</p>
</div>

<div id="featureUpdateDiv" style="display:none; margin-top: 1em;">
<h3 class="list-heading">Enter the incident information</h3>

<div id="attributeArea">
<label for="inputDescription">Description:</label>
<input class="inputInfo" type="text" id="inputDescription" placeHolder="Enter description"><br>
<label for="inputUserInfo">Contact:</label>
<input class="inputInfo" required type="email" name="email" id="inputUserInfo" pattern="[^ @]*@[^ @]*"
placeHolder="Enter email address"><br>
<input type="button" class="edit-button" value="Update incident info" id="btnUpdate">
</div>

Re: feature

RobertScheitlin__GISP — Sun, 12 Dec 2021 02:13:01 GMT

Anjelina,

You still have to learn how to use the syntax highlighter on GeoNet... It just makes it so much easier for us to read your code. Posting code with Syntax Highlighting on GeoNet

Lines 131-149 edited. And added FeatureLayer to require list.

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
  <title>Update FeatureLayer using applyEdits() - 4.6</title>

  <link rel="stylesheet" href="https://js.arcgis.com/4.6/esri/css/main.css">
  <script src="https://js.arcgis.com/4.6/"></script>

  <style>
    html,
    body,
    #viewDiv {
      padding: 0;
      margin: 0;
      height: 100%;
      width: 100%;
    }

    .editArea-container {
      background: #fff;
      font-family: "Avenir Next W00", "Helvetica Neue", Helvetica, Arial, sans-serif;
      line-height: 1.5em;
      overflow: auto;
      padding: 12px 15px;
      width: 300px;
    }

    .edit-button:hover,
    .edit-button:focus {
      background-color: #e4e4e4;
    }

    .inputInfo {
      font-size: 12px;
      height: 32px;
      margin-bottom: 6px;
      padding: 0 6px;
      width: 100%;
    }

    .list-heading {
      font-weight: normal;
      margin-top: 20px;
      margin-bottom: 10px;
      color: #323232;
    }

    .edit-button {
      font-size: 14px;
      height: 32px;
      margin-top: 10px;
      width: 100%;
      background-color: transparent;
      border: 1px solid #0079c1;
      color: #0079c1;
    }

    .or-wrap {
      background-color: #e0e0e0;
      height: 1px;
      margin: 2em 0;
      overflow: visible;
    }

    .or-text {
      background: #fff;
      line-height: 0;
      padding: 0 1em;
      position: relative;
      top: -.75em;
    }

    input:invalid {
      border: 1px solid red;
    }

    input:valid {
      border: 1px solid green;
    }
  </style>

  <script>
    require([
        "esri/Map",
        "esri/views/SceneView",
        "esri/layers/Layer",
        "esri/Graphic",
        "esri/widgets/Expand",
        "esri/widgets/Home",
        "esri/geometry/Extent",
        "esri/Viewpoint",
        "esri/core/watchUtils",
        "dojo/on",
        "dojo/dom",
        "esri/layers/FeatureLayer",
        "dojo/domReady!"
      ],
      function(
        Map, SceneView, Layer, Graphic, Expand,
        Home, Extent, Viewpoint, watchUtils,
        on, dom, FeatureLayer
      ) {

        var featureLayer, editExpand;

        // feature edit area domNodes
        var editArea, attributeEditing, inputDescription,
          inputUserInfo, updateInstructionDiv;

        var map = new Map({
          basemap: "streets"
        });

        // initial extent of the view and home button
        var initialExtent = new Extent({
          xmin: -13045631,
          xmax: -13042853,
          ymin: 4034880,
          ymax: 4034881,
          spatialReference: 102100
        });

        var view = new SceneView({
          container: "viewDiv",
          map: map,
          extent: initialExtent
        });

        // add an editable featurelayer from portal
        // Layer.fromPortalItem({
        //     portalItem: { // autocasts as new PortalItem()
        //       id: "511b97fc0d364367b127f8ba5c89ad13"
        //     }
        //   }).then(addLayer)
        //   .otherwise(handleLayerLoadError);
        
        addLayer();
        setupEditing();
        setupView();

        function addLayer() {
          featureLayer = new FeatureLayer({
            url: "https://localhost:6080/arcgis/rest/services/Texass_Layer/FeatureServer/4",
            visible:true
          });
          map.add(featureLayer);
        }

        function applyEdits(params) {
          unselectFeature();
          var promise = featureLayer.applyEdits(params);
          editResultsHandler(promise);
        }

        // *****************************************************
        // applyEdits promise resolved successfully
        // query the newly created feature from the featurelayer
        // set the editFeature object so that it can be used
        // to update its features.
        // *****************************************************
        function editResultsHandler(promise) {
          promise
            .then(function(editsResult) {
              var extractObjectId = function(result) {
                return result.objectId;
              };

              // get the objectId of the newly added feature
              if (editsResult.addFeatureResults.length > 0) {
                var adds = editsResult.addFeatureResults.map(
                  extractObjectId);
                newIncidentId = adds[0];

                selectFeature(newIncidentId);
              }
            })
            .otherwise(function(error) {
              console.log("===============================================");
              console.error("[ applyEdits ] FAILURE: ", error.code, error.name,
                error.message);
              console.log("error = ", error);
            });
        }

        // *****************************************************
        // listen to click event on the view
        // 1. select if there is an intersecting feature
        // 2. set the instance of editFeature
        // 3. editFeature is the feature to update or delete
        // *****************************************************
        view.on("click", function(evt) {
          unselectFeature();
          view.hitTest(evt).then(function(response) {
            if (response.results.length > 0 && response.results[0].graphic) {

              var feature = response.results[0].graphic;
              selectFeature(feature.attributes[featureLayer.objectIdField]);

              inputDescription.value = feature.attributes[
                "Incident_Desc"];
              inputUserInfo.value = feature.attributes[
                "Incident_Address"];
              attributeEditing.style.display = "block";
              updateInstructionDiv.style.display = "none";
            }
          });
        });

        // *****************************************************
        // select Feature function
        // 1. Select the newly created feature on the view
        // 2. or select an existing feature when user click on it
        // 3. Symbolize the feature with cyan rectangle
        // *****************************************************
        function selectFeature(objectId) {
          // symbol for the selected feature on the view
          var selectionSymbol = {
            type: "simple-marker", // autocasts as new SimpleMarkerSymbol()
            color: [0, 0, 0, 0],
            style: "square",
            size: "40px",
            outline: {
              color: [0, 255, 255, 1],
              width: "3px"
            }
          };
          var query = featureLayer.createQuery();
          query.where = featureLayer.objectIdField + " = " + objectId;

          featureLayer.queryFeatures(query).then(function(results) {
            if (results.features.length > 0) {
              editFeature = results.features[0];
              editFeature.symbol = selectionSymbol;
              view.graphics.add(editFeature);
            }
          });
        }

        // *****************************************************
        // hide attributes update and delete part when necessary
        // *****************************************************
        function unselectFeature() {
          attributeEditing.style.display = "none";
          updateInstructionDiv.style.display = "block";

          inputDescription.value = null;
          inputUserInfo.value = null;
          view.graphics.removeAll();
        }

        // *****************************************************
        // add homeButton and expand widgets to UI
        // *****************************************************
        function setupView() {
          // set home buttone view point to initial extent
          var homeButton = new Home({
            view: view,
            viewpoint: new Viewpoint({
              targetGeometry: initialExtent
            })
          });
          view.ui.add(homeButton, "top-left");

          // expand widget
          editExpand = new Expand({
            expandIconClass: "esri-icon-edit",
            expandTooltip: "Expand Edit",
            expanded: true,
            view: view,
            content: editArea
          });
          view.ui.add(editExpand, "top-right");
        }

        // *****************************************************
        // set up for editing
        // *****************************************************
        function setupEditing() {
          // input boxes for the attribute editing
          editArea = dom.byId("editArea");
          updateInstructionDiv = dom.byId("updateInstructionDiv");
          attributeEditing = dom.byId("featureUpdateDiv");
          inputDescription = dom.byId("inputDescription");
          inputUserInfo = dom.byId("inputUserInfo");

          // *****************************************************
          // btnUpdate click event
          // update attributes of selected feature
          // *****************************************************
          on(dom.byId("btnUpdate"), "click", function(evt) {
            if (editFeature) {
              editFeature.attributes["Incident_Desc"] = inputDescription.value;
              editFeature.attributes["Incident_Address"] = inputUserInfo.value;

              var edits = {
                updateFeatures: [editFeature]
              };

              applyEdits(edits);
            }
          });

          // *****************************************************
          // btnAddFeature click event
          // create a new feature at the click location
          // *****************************************************
          on(dom.byId("btnAddFeature"), "click", function() {
            unselectFeature();
            on.once(view, "click", function(event) {
              event.stopPropagation();

              if (event.mapPoint) {
                point = event.mapPoint.clone();
                point.z = undefined;
                point.hasZ = false;

                newIncident = new Graphic({
                  geometry: point,
                  attributes: {}
                });

                var edits = {
                  addFeatures: [newIncident]
                };

                applyEdits(edits);

                // ui changes in response to creating a new feature
                // display feature update and delete portion of the edit area
                attributeEditing.style.display = "block";
                updateInstructionDiv.style.display = "none";
                dom.byId("viewDiv").style.cursor = "auto";
              } else {
                console.error("event.mapPoint is not defined");
              }
            });

            // change the view's mouse cursor once user selects
            // a new incident type to create
            dom.byId("viewDiv").style.cursor = "crosshair";
            editArea.style.cursor = "auto";
          });

          // *****************************************************
          // delete button click event. ApplyEdits is called
          // with the selected feature to be deleted
          // *****************************************************
          on(dom.byId("btnDelete"), "click", function() {
            var edits = {
              deleteFeatures: [editFeature]
            };
            applyEdits(edits);
          });

          // *****************************************************
          // watch for view LOD change. Display Feature editing
          // area when view.zoom level is 14 or higher
          // otherwise hide the feature editing area
          // *****************************************************
          view.when(function() {
            watchUtils.whenTrue(view, "stationary", function() {
              if (editExpand) {
                if (view.zoom <= 14) {
                  editExpand.domNode.style.display = "none";
                } else {
                  editExpand.domNode.style.display = "block";
                }
              }
            });
          });
        }

        function handleLayerLoadError(err) {
          console.log("Layer failed to load: ", err);
        }
      });
  </script>
</head>

<body>
  <div id="editArea" class="editArea-container">
    <div id="addFeatureDiv">
      <h3 class="list-heading">Report Incidents</h3>
      <ul style="font-size: 13px; padding-left: 1.5em;">
        <li>Click Add incident button</li>
        <li>Click on the map to create the incident</li>
      </ul>
      <input type="button" class="edit-button" value="Add incident" id="btnAddFeature">
    </div>

    <div id="updateInstructionDiv" style="text-align:center">
      <p class="or-wrap"><span class="or-text">Or</span></p>
      <p>Select an incident to edit or delete.</p>
    </div>

    <div id="featureUpdateDiv" style="display:none; margin-top: 1em;">
      <h3 class="list-heading">Enter the incident information</h3>

      <div id="attributeArea">
        <label for="inputDescription">Description:</label>
        <input class="inputInfo" type="text" id="inputDescription" placeHolder="Enter description"><br>
        <label for="inputUserInfo">Contact:</label>
        <input class="inputInfo" required type="email" name="email" id="inputUserInfo" pattern="[^ @]*@[^ @]*" placeHolder="Enter email address"><br>
        <input type="button" class="edit-button" value="Update incident info" id="btnUpdate">
      </div>

      <div id="deleteArea">
        <input type="button" class="edit-button" value="Delete incident" id="btnDelete">
      </div>
    </div>
  </div>
  <div id="viewDiv"></div>
</body>

</html>
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Re: feature

anjelinaponkerat — Wed, 31 Jan 2018 16:56:37 GMT

can not show feature layer and can not edit or add new points ...

Re: feature

RobertScheitlin__GISP — Wed, 31 Jan 2018 17:37:40 GMT

You are right. I forgot to add FeatureLayer to the require array. I have updated the code I originally posted.

Re: feature

anjelinaponkerat — Sun, 12 Dec 2021 02:13:03 GMT

But I have a problem, when I use my own service, because of different fields in features, I can not update points, I changed :

      editFeature.attributes["Incident_Desc"] = inputDescription.value;
              editFeature.attributes["Incident_Address"] = inputUserInfo.value;

to my fields:

   editFeature.attributes["City"] = inputDescription.value;
              editFeature.attributes["Phone_Number"] = inputUserInfo.value;

and change:

 inputDescription.value = feature.attributes[
                "Incident_Desc"];
              inputUserInfo.value = feature.attributes[
                "Incident_Address"];

to my fields:

 inputDescription.value = feature.attributes[
                "City"];
              inputUserInfo.value = feature.attributes[
                "Phone_Number"];

but it can not load info from feature service to it's text box and unfortunately return "undefined"

Re: feature

RobertScheitlin__GISP — Mon, 05 Feb 2018 00:57:51 GMT

Anjelina,

Are those the correct field names for your data CaSe and all?

Re: feature

anjelinaponkerat — Mon, 05 Feb 2018 08:07:55 GMT

yes exactly all fields name are correct. but I dont know why it does not work.

Re: feature

RobertScheitlin__GISP — Sun, 12 Dec 2021 02:13:06 GMT

Anjelina,

Did you specify the outFields for your feature layer?

        function addLayer() {
          featureLayer = new FeatureLayer({
            url: "http://gis.calhouncounty.org/arcgis2/rest/services/CountyCrimeMap/FeatureServer/0",
            visible: true,
            outFields: ["*"]
          });
          map.add(featureLayer);
        }‍‍‍‍‍‍‍‍

Re: feature

anjelinaponkerat — Mon, 05 Feb 2018 17:30:09 GMT

Thanks

The problem was related to "outfields"