过滤 Realm object 有100%值时返回nil

Question

I am stucked in situation when I am trying to.filter Realm objects with predicate and it returns nil, but I do the same query in Realm studio and it DOES work there.

I can return idFolder, but can't query the object using it

folders = realm.objects(Folder.self)
currentFolder = String(describing: folders?.first?.idFolder)

My code of querying:

if let idFolder = currentFolder {
        let folderName = folders?.filter("idFolder = '\(String(describing: idFolder))'").first?.name
        let name = callAlert(title: "Add new well for folder \(String(describing: folderName))")
    }

The problem is that folderName = nil

I double checked the value of currentFolder and it is equal to what I have in my Realm database. Here is a screenshot: Realm database

Does anybody know what I am doing wrong? I also tried to use new querying instead of chaining request, didn't work.

Answer 1

the problem is on the query "idFolder = '\(String(describing: idFolder))'" the correct one should be like that update "idFolder == \(idFolder)"