How to make sure data in variable is loaded before using it

Question

So I have an .onRecieve method

.onReceive(model2.$postsById) { postById in
       print(\"MODEL2 \\(self.model2.postsById)\")
    }

Answer 1

try this:

struct Album: View {
    var post:Post
    var post2:[PostById]

    var body: some View {
             VStack {
                Text("Title: ").bold()
                    + Text("\(post!.title)")
                ImageView(withURL: "http://localhost:8000/\(post!.path.replacingOccurrences(of: " ", with: "%20"))")
                    Text("Description: ").bold()
                        + Text("\(post!.description)")

if post2.count > 0 {
            List(self.post2.filter { i in i.album_id == post.id }) { post       in
                Text("\(post.name ?? "title")")
                print(post2)
             }
}

Answer 2

I think you want to declare post2 as

 @Binding var post2:[PostById]

And then pass in

 Album(post: post, post2: self.model2._postsById)

Which is what $ does, but you can't use that here.