Brillaint thanks Andy.

Hi Andy,

Do you have anyideas where you would include the UrlSegmentProvider class?

Not sure exactly I'm afraid, but most things in this area of customising the pipeline require you to create a class that inherits ApplicationEventHandler, and then set up/override the resolution to find your class in the ApplicationStarting event.  So I'd expect it''s there you need to do it.

Not sure I'll be able to help much more I'm afraid John as not actually done this myself, but it looks like the problem is that the compiler is looking for a method with a signature like this:

GetUrlSegment(IContentBase content, CultureInfo cultureInfo)

And yours is like this:

GetUrlSegment(IContentBase content)

So if you add that extra argument that should resolve this build error.

Andy

Thanks Andy gave it ago but unfortunatly created a new compiler error.

Error1'JohnChurchley.Web.App_Start.UrlSegmentProvider' does not implement interface member 'Umbraco.Core.Strings.IUrlSegmentProvider.GetUrlSegment(Umbraco.Core.Models.IContentBase, System.Globalization.CultureInfo)'D:\Websites\JohnChurchley\JohnChurchley.Web\App_Start\BlogConfig.cs1118JohnChurchley.Web

New Code:

using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

using System.Web;

using System.Web.Optimization;

using Umbraco.Core;

using Umbraco.Core.Models;

namespace JohnChurchley.Web.App_Start

{

    public class ApplicationEventHandler : IApplicationEventHandler

    {

        public void OnApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext) { }

        public void OnApplicationInitialized(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext) { }

        public void OnApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)

        {

            BundleConfig.RegisterBundles(BundleTable.Bundles);

        }

        public interface IUrlSegmentProvider

        {

            string GetUrlSegment(IContentBase content, CultureInfo cultureInfo);

        }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using Umbraco.Core;

using Umbraco.Core.Models;

namespace JohnChurchley.Web.App_Start

{

    public class UrlSegmentProvider : Umbraco.Core.Strings.IUrlSegmentProvider

    {

        public string GetUrlSegment(IContentBase content, System.Globalization.CultureInfo cultureInfo)

        {

            var services = ApplicationContext.Current.Services;

            var contentType = services.ContentTypeService.GetContentType(content.ContentTypeId);

            if (contentType.Alias != "BlogItem") return null;

            var date = content.UpdateDate.ToString("yyyy-MM-");

            return date + content.Name.ToUrlSegment();

        }

    }

}

I think you need to do something like this:

using Umbraco.Core;
using Umbraco.Core.Models;
using Umbraco.Core.Strings;

namespace JohnChurchley.Web.App_Start
{
    public class Something : ApplicationEventHandler
    {
        protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
            UrlSegmentProviderResolver.Current.InsertTypeBefore<DefaultUrlSegmentProvider, UrlSegmentProvider>();
        }
    }

    public class UrlSegmentProvider : Umbraco.Core.Strings.IUrlSegmentProvider
    {
        public string GetUrlSegment(IContentBase content)
        {
            // Implement me
        }

        public string GetUrlSegment(IContentBase content, System.Globalization.CultureInfo cultureInfo)
        {
            var services = ApplicationContext.Current.Services;
            var contentType = services.ContentTypeService.GetContentType(content.ContentTypeId);

            if (contentType.Alias != "BlogItem")
                return null;

            var date = content.UpdateDate.ToString("yyyy-MM-");

            return date + content.Name.ToUrlSegment();
        }
    }
}

The error you're getting is because you need to implement both public string GetUrlSegment(IContentBase content) AND public string GetUrlSegment(IContentBase content, System.Globalization.CultureInfo cultureInfo) methods.

Please do not define your own IUrlSegmentProvider in IApplicationEventHandler, you need to use Umbraco's provider. Also note that IApplicationEventHandler should be avoided, use ApplicationEventHandler instead. As that was the name of your class, I renamed it to "Something".

I don't know if this code will do anything but it should build (once you implement the other method). Be aware that the URL only changes when you publish the page that matches this scheme.

Also see: http://our.umbraco.org/forum/developers/api-questions/49059-Custom-IUrlSegmentProvider-not-hit

If you're not doing a multilingual site you might be able to get away with ignoring the culture info like so (not sure how well this would work though):

using Umbraco.Core;
using Umbraco.Core.Models;
using Umbraco.Core.Strings;

namespace JohnChurchley.Web.App_Start
{
    public class Something : ApplicationEventHandler
    {
        protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
        {
            UrlSegmentProviderResolver.Current.InsertTypeBefore<DefaultUrlSegmentProvider, UrlSegmentProvider>();
        }
    }

    public class UrlSegmentProvider : Umbraco.Core.Strings.IUrlSegmentProvider
    {
        public string GetUrlSegment(IContentBase content)
        {
            var services = ApplicationContext.Current.Services;
            var contentType = services.ContentTypeService.GetContentType(content.ContentTypeId);

            if (contentType.Alias != "BlogItem")
                return null;

            var date = content.UpdateDate.ToString("yyyy-MM-");

            return date + content.Name.ToUrlSegment();
        }

        public string GetUrlSegment(IContentBase content, System.Globalization.CultureInfo cultureInfo)
        {
            return GetUrlSegment(content);
        }
    }
}

Thanks Sebastiaan it worked great! I next attempted to add multiple segments i.e. 

            var date = content.UpdateDate.ToString("yyyy-MM-");

Became

            var date = content.UpdateDate.ToString("yyyy/MMMM/");

however gave me a 404 error but when I changed it to 

            var date = content.UpdateDate.ToString("yyyy/");

or 

            var date = content.UpdateDate.ToString("yyyy/MM/");

It worked! Very close to getting my desired result, thanks for the suggestions and patience. 

See the link I posted earlier, "/" is not allowed: http://our.umbraco.org/forum/developers/api-questions/49059-Custom-IUrlSegmentProvider-not-hit

Hi Sebastiaan, it appears to work fine for multiple segements contains only numbers. However I'm was getting an error in the media section when I try to create a new folder media section. The work around I used was to check if the object exists before checking if the contentType.Alias = "BlogItem" not sure on whether this conforms to any good practice but might be useful to anyone trying to replicate this in the future.

if (Object.ReferenceEquals(contentType, null)){return null;}

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