Swift Realm Results Convert to Model - swift

Question

Is there any simple way to map a Realm request to a Swift Model (struct) when it is just a single row?
When it is an array of data I can do something like this and work with the array. This is not working on a single row.
func toArray<T>(ofType: T.Type) -> [T] {
return compactMap { $0 as? T }
}
But what is best to do when just a single row of data?
my databases are big so doing it manually is just a pain and ugly.
It would also be nice when the Swift Model is not 100% the same as the Realm Model. Say one has 30 elements and the other only 20. Just match up the required data.
Thank you.

Answer 1

On my apps I m using this class to do all actions. I hope that's a solution for your situation. There is main actions for realm.
Usage
class Test: Object {
var name: String?
}
class ExampleViewController: UIViewController {
private let realm = CoreRealm()
override func viewDidLoad() {
super.viewDidLoad()
let data = realm.getArray(selectedType: Test.self)
}
import RealmSwift
class CoreRealm {
// Usage Example:
// let testObject = RealmExampleModel(value: ["age":1 , "name":"Name"])
// let testSubObject = TestObject(value: ["name": "FerhanSub", "surname": "AkkanSub"])
// testObject.obje.append(testSubObject)
let realm = try! Realm()
func deleteDatabase() {
try! realm.write {
realm.deleteAll()
}
}
func delete<T: Object>(selectedType: T.Type) {
try! realm.write {
let object = realm.objects(selectedType)
realm.delete(object)
}
}
func delete<T: Object>(selectedType: T.Type, index: Int) {
try! realm.write {
let object = realm.objects(selectedType)
realm.delete(object[index])
}
}
func add<T: Object>(_ selectedObject: T) {
do {
try realm.write {
realm.add(selectedObject)
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
// return Diretly object
func getArray<T: Object>(selectedType: T.Type) -> [T]{
let object = realm.objects(selectedType)
var array = [T]()
for data in object {
array.append(data)
}
return array
}
func getObject<T: Object>(selectedType: T.Type, index: Int) -> T{
let object = realm.objects(selectedType)
var array = [T]()
for data in object {
array.append(data)
}
return array[index]
}
// return Result tyle
func getResults<T: Object>(selectedType: T.Type) -> Results<T> {
return realm.objects(selectedType)
}
func getResult<T: Object>(selectedType: T.Type) -> T? {
return realm.objects(selectedType).first
}
func createJsonToDB<T: Object>(jsonData data: Data, formatType: T.Type) {
// let data = "{\"name\": \"San Francisco\", \"cityId\": 123}".data(using: .utf8)!
let realm = try! Realm()
try! realm.write {
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
realm.create(formatType, value: json, update: .modified)
} catch {
print("Json parsing error line 65")
}
}
}
}