Update feature attributes in an online feature service.
Use case
Online feature services can be updated with new data. This is useful for updating existing data in real time while working in the field.
How to use the sample
To change the feature's damage property, tap the feature to select it, tap the icon in the callout, then choose a new damage type.
How it works
- Create and load an
AGSServiceGeodatabasewith a feature service URL. - Get the
AGSServiceFeatureTablefrom the service geodatabase. - Create an
AGSFeatureLayerfrom the service feature table. - Select features from the
AGSFeatureLayer. - Change the selected feature's attributes.
- Update the table with
AGSFeatureTable.update(_:completion:). - Apply edits to the
AGSServiceGeodatabaseby callingAGSServiceGeodatabase.applyEdits(completion:), which will update the feature on the online service.
Relevant API
- AGSArcGISFeature
- AGSFeatureLayer
- AGSServiceFeatureTable
- AGSServiceGeodatabase
Tags
amend, attribute, details, edit, editing, information, value
Sample Code
// 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.
import UIKit
protocol UpdateAttributesOptionsViewControllerDelegate: AnyObject {
func optionsViewController(_ optionsViewController: UpdateAttributesOptionsViewController, didSelectOptionAtIndex index: Int)
func optionsViewControllerDidCancel(_ optionsViewController: UpdateAttributesOptionsViewController)
}
class UpdateAttributesOptionsViewController: UITableViewController {
var options = [String]()
weak var delegate: UpdateAttributesOptionsViewControllerDelegate?
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return options.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "EAOptionsCell", for: indexPath)
cell.textLabel?.text = options[indexPath.row]
return cell
}
// MARK: - Table view delegate
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
delegate?.optionsViewController(self, didSelectOptionAtIndex: indexPath.row)
}
// MARK: - Actions
@IBAction func cancel() {
delegate?.optionsViewControllerDidCancel(self)
}
}