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Glenford_Williams
May 2024

Using realm, what is the correct way to filter based on a models sub field? I have a model that as a property that is a list of ObjectId and i want to filter models based on them having a particular id This is what i have but i get an error RealmException: Unsupported comparison operator 'contains' against type 'objectId', right side must be a string or binary type. Error code: 1009.

   
final query = realm.query<realm_models.Bookmark>(
        r'collections CONTAINS $0', [ObjectId.fromHexString(id)]);
2 months later
Emilio_Colindres
Aug 2024

I’m having this same issue and error in realm kotlin doing:

fun Realm.ownedAndParticipatingTrackings(userId: ObjectId) = this.query<Tracking>(
        query = "ownerId == $0 OR participantIds CONTAINS $0",
        args = arrayOf(userId),
    )

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