Firebase storage. Download array of images

I am trying to download some images from Firebase Storage folder and pus it into my model Rules Firebase Folder Images in folder

My model is here. Instead of String (1,2,3,4,5) i have to use images from folder that has the same String names

struct ImageModel {
    var images: String
    var index: Int
    var imageLabel: String
    var description: String
    var comment = [String]()
}

class Model {
   static var imageModel = [
        ImageModel(images: "1", index: 0, imageLabel: "MDA", description: "description", comment: []),
        ImageModel(images: "2", index: 1, imageLabel: "Picture!", description: "some description.", comment: []),
        ImageModel(images: "3", index: 2, imageLabel: "What is this??", description: "description", comment: []),
        ImageModel(images: "4", index: 3, imageLabel: "A long named picture", description: "description", comment: []),
    ]
}

I have found how to write a request

func uploadMedia() {
        let storageRef = Storage.storage().reference().child("pictures")
        let megaByte = Int64(1 * 1024 * 1024)
        
        storageRef.getData(maxSize: megaByte) { (data, error) in
            guard let data = data else { return }
            let image = UIImage(data: data)
            for i in Model.imageModel {
                i.images = image
            }
        }
    }

But it has some errors, like

Cannot assign to property: i is a let constant … and …. Cannot assign value of type UIImage? to type String

How do i change my model or request?

I use my model in Collection View Cell

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        guard let cell = self.collectionView.dequeueReusableCell(withReuseIdentifier: CollectionViewCell.identifier, for: indexPath) as? CollectionViewCell else { return UICollectionViewCell() }
        cell.configureCollectionViewCell(picture: UIImage(named: String(Model.imageModel[indexPath.row].images))!, imageLabel: Model.imageModel[indexPath.row].imageLabel)
        return cell
    }

>Solution :

You want to access the array of images directly, not the reference to each item.

for (index, i) in Model.imageModel.enumerated() {
    Model.imageModel[index].images = image
}

Also, your images property accepts a String, as defined here:

var images: String

But you’re trying to assign it a UIImage. I’m not sure what you’re trying to add to the ImageModel, maybe you can elaborate?