Scriptum/Assets/Scripts/SceneManager/SaveItem/ItemData/ItemData.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

[System.Serializable]
public class ItemData
{
    public int id;

    public string name;

    public string description;

    public int level;

    public string imageName;

    // to handle object created on scene for example after removing from inventory
    public string itemModelName;

    private const string SPRITE_LOCALIZATION = "Sprites/Object Sprites/";
    private const string ITEM_LOCALIZATION = "Assets/Items/";

    public ItemData(Item item)
    {
        id = item.id;
        name = item.name;
        description = item.description;
        level = item.level;
        imageName = item.image.name;
        itemModelName = item.itemModel.name;
    }

    public Item MapDataToItem(string prefarbAssetName)
    {
        // Find prefarb in Assets/
        Item item = (Item)AssetDatabase.LoadAssetAtPath(ITEM_LOCALIZATION + prefarbAssetName + ".asset", typeof(Item));

        ///
        // DONT OVERWRITE PROPERTIES BECOUSE ITS EDIT MAIN OBJECT IN ASSET/
        ///

        // item.Id = this.id;
        // item.Name = this.name;
        // item.Description = this.description;
        // item.Level = this.level;

        // Debug.Log(ITEM_LOCALIZATION + this.imageName);
        // item.Image = (Sprite)AssetDatabase.LoadAssetAtPath(ITEM_LOCALIZATION + this.imageName, typeof(Sprite));
        // Debug.Log(item.Image);

        // item.ItemModel = (GameObject)AssetDatabase.LoadAssetAtPath(ITEM_LOCALIZATION + "Gold Ore" + ".prefab", typeof(GameObject));

        return item;
    }
}