Hello,

This is possible, but it's a bit hacky. Have a look at this issue: http://issues.umbraco.org/issue/U4-2670#comment=67-15418

I've implemented this in the Hybrid Framework. If you watch this video I explain how it works: https://www.youtube.com/watch?v=Enni9r0whCE

Jeroen

Hello,

Did you watch the video? 

You should also check the ContentService_Saved event in UmbracoEvents.cs. If the document type is gallery I create a new media folder and set that as the start node for the media picker.

Jeroen

Thanks Jereon. I've been frantically finishing off another project, so haven't had a chance to delve into this yet. Will do over the next day or so and will respond back here for sure.

One question I have around all this, is: Does it mean that using your solution will mean the media picker's start node will be affected at a global level? In other words, if after setting the start node for a news item I then open a document that isn't a news item but that also has a media picker, will the picker use the last saved start node id, the one that was set by the news item load or save?

Obviously the ideal situation is that it is only changed for the current request, but I'm not clear if that's the case. I'm also a little worried about multiple users accessing the same document at the same time, or using media picker on different documents at the same time.

Thanks!

Mark

Hi Jeroen,

Thanks to your examples I have managed to get this working.

Many thanks for taking the time to respond. If anyone wants to see the code, let me know. I got everything I needed from Jeroen's examples. This example contained the logic for setting the media node id on a per request basis. This example contained the logic for creating media folders (although that can also be found in the Content and Media events documentation.

Mark

Hi Carina,

For some reason your comment hasn't shown up. Anyway, the code you asked for:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using System.Web;
using Umbraco.Core.Logging;
using Umbraco.Web.Models.ContentEditing;

using Umbraco.Core;
using Umbraco.Core.Models;
using Umbraco.Core.Services;
using System.Configuration;
using WebProj.Data.PetaPoco;
using WebProj.Data;


namespace WebProj.Web.Handlers
{
    public class NewsItemWebApiHandler : System.Net.Http.DelegatingHandler
    {
        protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
        {
            switch (request.RequestUri.AbsolutePath.ToLower())
            {
                case "/umbraco/backoffice/umbracoapi/content/getempty":
                case "/umbraco/backoffice/umbracoapi/content/getbyid":
                    return SetNewsItemMediaPickerStartNode(request, cancellationToken);
                default:
                    return base.SendAsync(request, cancellationToken);
            }
        }

        private Task<HttpResponseMessage> SetNewsItemMediaPickerStartNode(HttpRequestMessage request, CancellationToken cancellationToken)
        {
            return base.SendAsync(request, cancellationToken)
                .ContinueWith(task =>
                {
                    var response = task.Result;

                    try
                    {
                        var data = response.Content;
                        var content = ((ObjectContent)(data)).Value as ContentItemDisplay;

                        if (content.ContentTypeAlias == "NewsItem")
                        {
                            // get the document properties
                            var imagesFolderName = content.Properties.FirstOrDefault(x => x.Alias == "imagesFolderName");
                            var imagesFolderId = content.Properties.FirstOrDefault(x => x.Alias == "imagesFolderId");

                            // create the images folder if not created already
                            if (imagesFolderName != null && imagesFolderId != null)
                            {
                                if (string.IsNullOrEmpty((string)imagesFolderName.Value))
                                {
                                    var mediaService = ApplicationContext.Current.Services.MediaService;

                                    var imagesFolder = mediaService.CreateMediaWithIdentity(Guid.NewGuid().ToString(), int.Parse(ConfigurationManager.AppSettings["NewsItemParentFolderId"]), "Folder");
                                    mediaService.Save(imagesFolder);

                                    imagesFolderName.Value = imagesFolder.Name;
                                    imagesFolderId.Value = imagesFolder.Id;
                                }
                            }

                            // set the start node of the images media picker
                            var mediaPicker = content.Properties.FirstOrDefault(x => x.Alias == "images");

                            if (mediaPicker != null && imagesFolderId != null)
                            {
                                if (mediaPicker.Config.ContainsKey("startNodeId"))
                                {
                                    mediaPicker.Config["startNodeId"] = imagesFolderId.Value.ToString();
                                }
                                else
                                {
                                    mediaPicker.Config.Add("startNodeId", imagesFolderId.Value.ToString());
                                }
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        LogHelper.Error<NewsItemWebApiHandler>("Could not change the media picker start node.", ex);
                    }
                    return response;
                });
        }
    }
}

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