adding a codable model to realm swift

Question

I am trying to add a Codable model to a realm DB. The model works and values are passed from an API call how ever, I want to create a Array in my Realm DB so when I hit a save button, the Model is added to DB.

how ever I get this error for my create

Cannot convert value of type 'Data?' to expected argument type 'Object'

func create<T: Object>(_ objects: [T]) where T: Codable {
        do {
            let placesData = try? JSONEncoder().encode(objects)
            try realm.write {
                realm.add(placesData)
            }
        } catch {
        }
    }

saving in UserDefaults is like this

private func putModelArray<T>(_ value: [T]?, forKey key: String) where T: Codable {
        guard let value = value else {
            storage.removeObject(forKey: key)
            return
        }
        let placesData = try? JSONEncoder().encode(value)
        storage.setValue(placesData, forKey: key)
    }

extract all values from Data into your class object, and then put your class object into realm. — Asad Ali Choudhry, Jun 19 '19 at 10:59
What is the goal to encode a Realm Object to JSON and save that in the database? — vadian, Jun 19 '19 at 11:01
can you print the placesData variable and add into your question. — Asad Ali Choudhry, Jun 19 '19 at 11:01
If you already have an array of objects, why would you want to JSON encode it before saving to realm? Simply do `realm.add(objects)`. — Dávid Pásztor, Jun 19 '19 at 11:06

Shehata Gamal · Answer 1 · 2019-06-19T10:58:04.177

0

This

realm.add(placesData)

takes an object argument while you send Data to it

if you get data from json and for it you use Decodable that doesn't mean you have to use Encodable

edited Jun 19 '19 at 10:58

answered Jun 19 '19 at 10:55

Shehata Gamal

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so how do I save this in Realm? because I cannot save the Codable model as it is into the DB – King Jun 19 '19 at 10:56
Using Realm, I have to conform to Encodable – King Jun 19 '19 at 10:59
try `realm.add(objects) `compile ? – Shehata Gamal Jun 19 '19 at 11:03
`Cannot convert value of type 'UInt8?' to expected argument type 'Object'` – King Jun 19 '19 at 11:06

adding a codable model to realm swift

1 Answers1