Hi All,

I've spend few times on playing around with Umbraco 5 API. Simply to know the real scenerio, just choose to create date folder using U5 API. And here I'm sharing the code.

using System;
using System.Linq;
using Umbraco.Cms.Web;
using Umbraco.Cms.Web.Context;
using Umbraco.Cms.Web.Model;
using Umbraco.Cms.Web.Model.BackOffice.Editors;
using Umbraco.Framework;
using Umbraco.Framework.Context;
using Umbraco.Framework.Persistence.Model.Constants;
using Umbraco.Framework.Tasks;
using Umbraco.Hive;
using Umbraco.Hive.RepositoryTypes;

namespace U5DateFolder.Helper
{

    [Task("c9888ab0-7e39-11e1-b0c4-0800200c9a66", TaskTriggers.Hive.Revisions.PostAddOrUpdateOnUnitComplete, ContinueOnFailure = false)]
    public class DateFolder : AbstractTask
    {
        private readonly IUmbracoApplicationContext _appContext;
        protected ContentEditorModel ContentModel;
        private HiveId _parentId;


        public DateFolder(IFrameworkContext context, IUmbracoApplicationContext appContext)
            : base(context)
        {
            _appContext = appContext;
        }

        /// Task execution.
        /// Current task execution context
        public override void Execute(TaskExecutionContext context)
        {
            var currendDocId = ((HiveRevisionPostActionEventArgs)context.EventArgs.CallerEventArgs).Entity.Item.Id;
            var contentNode = _appContext.Hive.Cms().Content.GetById(currendDocId);

            if (contentNode.ContentType.Alias != "newsItem") return;

            //Get the value of date properties to move date folder structure.
            var postDate = Convert.ToDateTime((contentNode.Attributes["date"].DynamicValue).Date);

            //Get the Date Folder document type.
            var doctype = _appContext.Hive.Cms()
                .GetContentTypeByAlias("dateFolder");

            string[] strArray = {
                                    postDate.Year.ToString(), postDate.Month.ToString(),
                                    postDate.Day.ToString()
                                };

            _parentId = contentNode.ParentContent().Id;

            if (strArray.Length != 3) return;

            foreach (var dateFolderDoc in from nodeName in strArray
                                          where CheckExist(_appContext.Hive.Cms().Content.GetById(_parentId), nodeName)
                                          select _appContext.Hive.Cms().NewRevision(nodeName, nodeName, doctype.Alias, false).SetParent(_parentId).Publish().Commit())
            {
                _parentId = dateFolderDoc.Content.Id;
            }

            ChangeRelations(_appContext.Hive.Cms().Content.GetById(currendDocId),
                            _appContext.Hive.Cms().Content.GetById(_parentId), postDate.Month.ToString());
        }


        /// Check either the given year, month 
        /// or day is exist or not.
        /// Date folder content node
        /// Name of the content node to be compare
        /// true/false
        private bool CheckExist(Content model, string nodeName)
        {
            //Get child content node's Hive Id of the given content node.
            var dateFolder = model.AllChildIds();
            var rtnVal = true;

            foreach (var id in dateFolder.Where(id => _appContext.Hive.Cms().Content.GetById(id).Name == nodeName))
            {
                rtnVal= false;
                _parentId = id;
            }

            return rtnVal;
        }


        /// Move the current content node into date folder structure.
        /// Source content node.
        /// Destination parent content node.
        /// Node name of the destination content node.
        private void ChangeRelations(Content sourceDoc, Content destinationParentDoc, string parentNodeName)
        {
            var defRelation =
                sourceDoc.RelationProxies.GetParentRelations(FixedRelationTypes.DefaultRelationType).First();

            if (defRelation == null) return;

            var parent = _appContext.Hive.Cms().Content.GetById(defRelation.Item.SourceId);
            var child = _appContext.Hive.Cms().Content.GetById(defRelation.Item.DestinationId);

            if (parent.Name == parentNodeName) return;

            using (var uow = _appContext.Hive.OpenWriter())
            {
                var previousParents = uow.Repositories.GetParentRelations(child.Id,
                                                                          FixedRelationTypes.DefaultRelationType);

                if (!previousParents.Any())
                    throw new InvalidOperationException(
                        "Could not find any parents for entity '{0}' with id {1}".InvariantFormat(
                            child.Name, child.Id));

                var toChange = previousParents.FirstOrDefault();
                var rest = previousParents.Skip(1);

                uow.Repositories.ChangeRelation(toChange, destinationParentDoc.Id, toChange.DestinationId);
                rest.ForEach(x => uow.Repositories.RemoveRelation(x));
                uow.Complete();
            }
        }
    }
}

May be there is better solution than the above code. So hope if there is than you guys will also share the code.

Thanks
PTamang