Realm - array of NSString as property?

Question

Hi everyone,

I'm working with Realm and I'd like to add an NSArray as one of my RLMObject's properties.

I just want to store NSString in that Array, that's why I don't want to define a RLMArray property ( I don't want to create a new RLMObject equivalent to an NSString ).

Is there a way to do that ?

Thanks in advance.

yoshyosh · Accepted Answer · 2015-05-19 17:22:09Z

2

Joe from Realm here. Currently we don't support Arrays of primitive types. It is something that we are discussing and on the road map though.

For now your best bet will be to create another RLMObject and then an RLMArray relationship to that, to store your primitive types.

answered May 19, 2015 at 17:22

yoshyosh

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2 Comments

Randy Over a year ago

Thanks Joe, great job by the way !

EpicPandaForce Over a year ago

Please update this answer as per Realm-Cocoa 3.0.0 if you still work for Realm :D

Leif Bredgaard Honorė · Accepted Answer · 2015-07-13 06:28:40Z

1

We have implemented this by making a RLMString class.

One problem we have had is that we would get orphaned values in the database, but it was probably due to the way we saved our data. This could probably be handled by using the stringValue as the key for the RLMObject.

This is our Swift implementation:

import Foundation
import Realm

class RLMString: RLMObject {
    dynamic var stringValue: String = ""

    init(stringValue: String) {
        self.stringValue = stringValue
        super.init()
    }

    override init() {
        super.init()
    }
}

answered Jul 13, 2015 at 6:28

Leif Bredgaard Honorė

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4 Comments

Randy Over a year ago

Thank you Leif, I'll keep using Realm. I really think it's the best way to manage database ( on iOS at least ).

Leif Bredgaard Honorė Over a year ago

I agree with you @Randy - it is a really nice database! I will start using it other apps as well, and maybe for WatchApp as well.

JiteshW Over a year ago

@LeifBredgaardHonorė, How can we convert that RLMString back to NSString? I tried doing rlmStringObj.stringValue but it gives me an error

Leif Bredgaard Honorė Over a year ago

@JiteshW sorry did not see your comment till now :) That should be the correct way to it though, given you have added the RLMString class and stored it in your realm. Could you try to post a sample of what you do please?

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