For the original question, below is a code snippet to get BUILDING_NO_SUBTYPE and SUBTYPE_COUNT from the service feature table: https://services.gisqatar.org.qa/server/rest/services/Vector/QARS_Search/MapServer/6 . Note that in order to access all the attributes, you'll need to specify loadAll for the queryFeatureFields parameter.
import UIKit
import ArcGIS
class ViewController: UIViewController {
@IBOutlet private var mapView: AGSMapView! {
didSet {
mapView.map = AGSMap(basemapStyle: .arcGISLightGray)
}
}
override func viewDidLoad() {
super.viewDidLoad()
queryQARS_Total()
}
let featureTable = AGSServiceFeatureTable(
url: URL(string: "https://services.gisqatar.org.qa/server/rest/services/Vector/QARS_Search/MapServer/6")!
)
private func showSubtypeCount(for feature: AGSFeature) {
let subType = feature.attributes.value(forKey: "BUILDING_NO_SUBTYPE") as! Int
let count = feature.attributes.value(forKey: "SUBTYPE_COUNT") as! Int
let objectID = feature.attributes["ObjectID"] as! Int
print("SUBTYPE_COUNT = \(count) for feature of \(subType), ObjectID \(objectID)")
}
private func queryQARS_Total() {
let queryParams = AGSQueryParameters()
queryParams.whereClause = "1=1"
featureTable.queryFeatures(
with: queryParams,
queryFeatureFields: .loadAll
) { [weak self] (queryResult: AGSFeatureQueryResult?, error: Error?) in
guard let self else { return }
if let error {
print(error.localizedDescription)
} else if let features = queryResult?.featureEnumerator().allObjects,
!features.isEmpty {
for feature in features {
self.showSubtypeCount(for: feature)
}
}
}
}
}
