You should post your class sample. More likely it is at the time your ApplicationHandler is instantiated that there is no umbracoContext available => So no UmbracoHelper either :-)

So you should manually retrieve your globalSettings in the ApplicationStarted

Hi Laurent,

Thanks for your reply. I thought that the issue with the context would most likely be the cause of the problem. How do you mean manually retrieve the globalSettings? Are you talking about loading from the IContentService? I'd thought about that but I was hoping to use the strongly typed models builder model to access my properties.

Here is the relevant section from the ApplicationHandler:

    private void ContentService_Saving(IContentService sender, SaveEventArgs<IContent> args)
    {
        foreach (var node in args.SavedEntities)
        {
            if (node.ContentType.Alias == Stockist.ModelTypeAlias)
            {
                var stockistLocatorService = this.GetStockistLocatorService();

                var postcode = node.GetValue<string>("stockistPostcode");

                var task = SystemTask.Run(() => stockistLocatorService.GetCoordinatesByPostcode(postcode));
                var coords = task.Result;

                if (coords != null)
                {
                    node.SetValue("stockistLatitude", coords.Latitude);
                    node.SetValue("stockistLongitude", coords.Longitude);
                }
                else
                {
                    var message = new EventMessage(
                        "Stockist",
                        "Unable to get the location details for this stockist. Please try again later.",
                        EventMessageType.Error);

                    args.CancelOperation(message);
                }
            }
        }
    }

    /// <summary>
    /// Gets the stockist locator service.
    /// </summary>
    /// <returns>The stockist locator service.</returns>
    private IStockistLocatorService GetStockistLocatorService()
    {
        return DependencyResolver.Current.GetService<IStockistLocatorService>();
    }

The IStockistLocatorService has the GlobalSettings injected as a contructor dependency, which is where I'm getting the problem.

Thanks for your help.

Andy

Hi Laurent,

This is what I've done but I don't like the solution really. I am currently injecting the IContentService into my IStockistLocatorService and using a GetGlobalSettings method to load the settings node:

/// <summary>
/// Gets the global settings.
/// </summary>
/// <returns>The global settings.</returns>
private IContent GetGlobalSettings()
{
    if (this.globalSettings == null)
    {
        var configuration = this.contentService
            .GetRootContent()
            .FirstOrDefault(x => x.ContentType.Alias.Equals(Configuration.ModelTypeAlias));

        if (configuration == null)
        {
            throw new ApplicationException("The configuration node for the application was not found.");
        }

        var globalSettings = this.contentService
            .GetDescendants(configuration)
            .FirstOrDefault(x => x.ContentType.Alias.Equals(GlobalSettings.ModelTypeAlias));

        if (globalSettings == null)
        {
            throw new ApplicationException("The global settings for the application were not found.");
        }

        this.globalSettings = globalSettings;
    }

    return this.globalSettings;
}

Once I've got the IContent I can access the properties using:

var globalSettings = this.GetGlobalSettings();

globalSettings.GetValue<string>("googleMapsKey");

I'll stick with this solution for now but I'd still be interested to hear anyone else's experiences.

Thanks for your help.

Andy

You can create a GlobalSettings class, where you inject the IContentService. The constructor reads your globalsetting content.

a GET  property GoogleMapsKey => reads the right property.

In the IStockService, you inject the GlobalSettings. And you access the googlemapskey through your property

Hi Laurent,

Yeah, I think this is the way i'll go, when I have the time! I'll create a configuration class which contains my various settings document types, which can then be injected where needed.

Thanks again for your input.

Andy

is working on a reply...