Media Picker Property Editor Value Convertor - without DB hits from uQuery

MediaPickerPropertyEditorValueConverter.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using Umbraco.Core;
using Umbraco.Core.PropertyEditors;
using Umbraco.Core.Models;
using umbraco.editorControls;
using Umbraco.Web;
using umbraco;

namespace Our.Umbraco.PropertyEditorConverters
{
    /// <summary>
    /// original from here:
    /// https://bitbucket.org/jeavon/umbraco-core-property-editor-converters/src/b1eb094077362bbbb5d86ff209c024d595b44457/Our.Umbraco.PropertyEditors/MediaPickerPropertyEditorValueConverter.cs?at=default
    /// </summary>
    public class MediaPickerPropertyEditorValueConverter : IPropertyEditorValueConverter
    {
        string _propertyTypeAlias = string.Empty;
        string _docTypeAlias = string.Empty;

        public bool IsConverterFor(Guid propertyEditorId, string docTypeAlias, string propertyTypeAlias)
        {
            _propertyTypeAlias = propertyTypeAlias;
            _docTypeAlias = docTypeAlias;
            return Guid.Parse("ead69342-f06d-4253-83ac-28000225583b").Equals(propertyEditorId);
        }
        public Attempt<object> ConvertPropertyValue(object value)
        {
            int nodeId; //check value is node id and not stored as node names
            if (UmbracoContext.Current != null && int.TryParse(value.ToString(), out nodeId))
            {
                var umbHelper = new UmbracoHelper(UmbracoContext.Current);

                var mediaPickerContent = umbHelper.TypedMedia(nodeId);

                if (mediaPickerContent == null || mediaPickerContent.ItemType != PublishedItemType.Media)
                {
                    return Attempt<object>.False;
                }

                return new Attempt<object>(true, mediaPickerContent);
            }
            else
            {
                return Attempt<object>.False;
            }
        }
    }
}