Sitefinity IDataEvent sample

01-Setup

using System;
using Telerik.Sitefinity.Abstractions;
using Telerik.Sitefinity.Data.Events;
using Telerik.Sitefinity.Events.Model;
using Telerik.Sitefinity.Scheduling;
using Telerik.Sitefinity.Services;

namespace MyApp.MyNamespace
{
    public class Setup
    {
        public static void PreApplicationStart()
        {
            Bootstrapper.Initialized += Bootstrapper_Initialized;
        }

        private static void Bootstrapper_Initialized(object sender, Telerik.Sitefinity.Data.ExecutedEventArgs e)
        {
            if (e.CommandName == "Bootstrapped")
            {
                EventHub.Subscribe<IDataEvent>(HandleDataEvent);
            }
        }

        private static void HandleDataEvent(IDataEvent evt)
        {
            // Only process user-initiated changes
            if (!String.IsNullOrWhiteSpace(evt.Origin))
            {
                return;
            }

            ILifecycleEvent levt = evt as ILifecycleEvent;

            if (levt == null || levt.Status.Equals("Master", StringComparison.InvariantCultureIgnoreCase) == false)
            {
                return;
            }

            // Both new and edited items raise an "updated" event
            if (evt.Action.Equals("Updated", StringComparison.InvariantCultureIgnoreCase))
            {
                Type itemType = evt.ItemType;

                if (itemType == typeof(Event)) // <- Filter for your desired content type here
                {
                    /* Something needs to be done in response to the "updated" event. Schedule a task to do this. */

                    MyCustomTask.TaskModel model = new MyCustomTask.TaskModel
                    {
                        ItemId = evt.ItemId,
                        ProviderName = evt.ProviderName
                    };
                    // Start the task 2 seconds from now.
                    MyCustomTask task = new MyCustomTask(model)
                    {
                        Key = evt.ItemId.ToString(),
                        ExecuteTime = DateTime.UtcNow.AddSeconds(2)
                    };

                    SchedulingManager schedulingManager = SchedulingManager.GetManager();
                    schedulingManager.AddTask(task);
                    schedulingManager.SaveChanges();
                }
            }
        }
    }
}

02-MyCustomTask

using System;
using System.Linq;
using ServiceStack;
using Telerik.OpenAccess;
using Telerik.Sitefinity.Data;
using Telerik.Sitefinity.Model;
using Telerik.Sitefinity.Scheduling;

namespace MyApp.MyNamespace
{
    /// <summary>
    /// Performs the work in response to the IDataEvent.
    /// </summary>
    class MyCustomTask : ScheduledTask
    {
        public MyCustomTask()
        {
        }

        public MyCustomTask(TaskModel model)
        {
            Model = model;
        }

        public override void ExecuteTask()
        {
            // Do your actual work here.
            // Make sure to call manager.SaveChanges() with a custom string parameter,
            // so you don't trigger your event handler again. Like this:
            ...
            myManager.SaveChanges(GetType().ToString())
        }

        public override string TaskName
        {
            get { return GetType().FullName; }
        }

        public override string GetCustomData()
        {
            return Model == null ? null : Model.ToJsv();
        }

        public override void SetCustomData(string customData)
        {
            if (!String.IsNullOrWhiteSpace(customData))
            {
                Model = customData.FromJsv<EventModel>();
            }
        }

        /// <summary>
        /// Gets or sets the task's payload.
        /// </summary>
        public TaskModel Model { get; set; }

        /// <summary>
        /// Holds the data required to execute a <see cref="MyCustomTask"/>.
        /// </summary>
        public class TaskModel
        {
            /// <summary>
            /// Gets or sets the item's (master) ID.
            /// </summary>
            public Guid ItemId { get; set; }

            /// <summary>
            /// Gets or sets the provider name.
            /// </summary>
            public string ProviderName { get; set; }
        }
    }
}