NotificationHandler get value from data type?

Questions
1

Umbraco 13

Hi,

I am trying to build a NotificationHandler that checks specific content on a specific document type, I can get it to work, if the contents already been saved.

But if it a new content item, I can’t work out how to get the image type I have on there and work out how to get the custom fields.

Here the code for my NotificationHandler.

using Umbraco.Cms.Core.Events;
using Umbraco.Cms.Core.Models;
using Umbraco.Cms.Core.Models.PublishedContent;
using Umbraco.Cms.Core.Notifications;
using Umbraco.Cms.Core.Services;
using Umbraco.Cms.Core.Web;

namespace UmbracoCMS.App_Code.Handler
{
public class saveNotificationHandler : INotificationHandler
{
private IMediaService _mediaService;
private IContentService _contentservice;
private readonly IUmbracoContextFactory _umbracoContextFactory;

    public saveNotificationHandler(IMediaService mediaService, IContentService contentservice, IUmbracoContextFactory umbracoContextFactory)
    {
        _mediaService = mediaService;
        _contentservice = contentservice;
        _umbracoContextFactory = umbracoContextFactory;
    }


    public void checknewsArticalImages(IContent node, ContentPublishingNotification notification)
    {
        if (node.ContentType.Alias.Equals("newsArticle"))
        {

            IContent c = _contentservice.GetById(node.Id);

            if (c != null) {
                using (var ctxRef = _umbracoContextFactory.EnsureUmbracoContext())
                {
                    IPublishedContent publishedContent = ctxRef.UmbracoContext.Content.GetById(node.Id);

                    if (publishedContent != null)
                    {
                        IPublishedContent img = publishedContent.Value<IPublishedContent>("newsArticleImage");
                        var alttext = img.Value<string>("altText");

                        if (alttext.Length == 0)
                        {
                            notification.CancelOperation(new EventMessage("News Error",
                            "Please check the ALT tag on the image, it dose not seem to be set!",
                            EventMessageType.Error));
                        }

                    }
                }
            } else
            {
                //None Saved Content. 
                string s = "";

            }
            
        }
    }


    public void Handle(ContentPublishingNotification notification)
    {

        foreach (var node in notification.PublishedEntities)
        {
            checknewsArticalImages(node, notification);
        }
    }
}

}

Any help would be grate!

Thanks

Darren

2

Fixed it this way!

using Umbraco.Cms.Core.Events;
using Umbraco.Cms.Core.Models;
using Umbraco.Cms.Core.Models.PublishedContent;
using Umbraco.Cms.Core.Notifications;
using Umbraco.Cms.Core.Services;
using Umbraco.Cms.Core.Web;

namespace UmbracoCMS.App_Code.Handler
{
public class publishNotificationHandler : INotificationHandler
{
private IMediaService _mediaService;
private IContentService _contentservice;
private readonly IUmbracoContextFactory _umbracoContextFactory;

    public publishNotificationHandler(IMediaService mediaService, IContentService contentservice, IUmbracoContextFactory umbracoContextFactory)
    {
        _mediaService = mediaService;
        _contentservice = contentservice;
        _umbracoContextFactory = umbracoContextFactory;
    }


    public void Handle(ContentPublishedNotification notification)
    {

        foreach (IContent node in notification.PublishedEntities)
        {

            using (var ctxRef = _umbracoContextFactory.EnsureUmbracoContext())
            {
                IPublishedContent publishedContent = ctxRef.UmbracoContext.Content.GetById(node.Id);
                if (publishedContent != null)
                {
                    IPublishedContent img = publishedContent.Value<IPublishedContent>("newsArticleImage");
                    var alttext = img.Value<string>("altText");

                    if (alttext.Length == 0)
                    {
                        notification.Messages.Add(new EventMessage("News Error",
                        "Please check the ALT tag on the image, it dose not seem to be set!",
                        EventMessageType.Error));
                    }
                }

            }

        }
    }
}

}

But it not what I need it to do, I need it to work on publishing not published.