How do I programmaticaly set an image on glassmapped item

Question

So I have a glassMapped item with an image.

[SitecoreType(TemplateId = TemplateIdConstants.NationalChain, EnforceTemplate = SitecoreEnforceTemplate.Template)]
public interface IChain : IGlassBase
{
    [SitecoreField("Logo")]
    Image Logo { get; set; }
}

Witch I then try to set:

using (new SecurityDisabler())
using (var db = new SitecoreContext(Sitecore.Context.Database))
{
    var item = db.Create<IChain, IGlassBase>(parent, model.Name);
    item.Logo = new Image { MediaId = image.ID.ToGuid() };
    db.Save(item);
}

This does not work, so I'm looking for the correct way to do this.

Edit, I found one way that works..although I'm not happy with it. I added the following to the interface:

[SitecoreField("Logo")]
string LogoString { get; set; }

I then set the raw value like this:

item.LogoString = "<image mediaid=\"{" + image.ID.ToGuid() + "}\" />";

Is there any better way of doing this?

The following gives a strange result. Image is set while Logo is not set.

[SitecoreType(TemplateId = TemplateIdConstants.NationalChain, EnforceTemplate = SitecoreEnforceTemplate.Template)]
public interface IChain : IGlassBase
{
  [SitecoreField("Logo")]
  Image Logo { get; set; }
  [SitecoreField("Image")]
  Image Image { get; set; }
}
  item.Image = new Image { MediaId = image.ID.ToGuid() };
  item.Logo = new Image { MediaId = image.ID.ToGuid() };

What am I missing?

Answer 1

Not sure with your GlassMapper version, but anyway check SecurityDisabler, SitecoreType attribute (provide error details to get answer faster).

Working solution with class (instead of interface)

Model:

[SitecoreType(TemplateId = "{[your template ID]}"]
public class ChildItem
{
    [SitecoreField("Image")]
    public virtual Image Image { get; set; }

    [SitecoreId]
    public virtual Guid Id { get; set; }

    [SitecoreInfo(SitecoreInfoType.Url)]
    public virtual string Url { get; set; }

    [SitecoreInfo(SitecoreInfoType.Name)]
    public virtual string Name { get; set; }
}

Saving:

 using (new SecurityDisabler())
 {
    using (var service = new SitecoreService("master"))
    {
        var childItem = new ChildItem
        {
          Name = "child";
          Image = new Image {MediaId = new Guid("{[your media ID]}")};
        };
        service.Create(parentItem, childItem);
    }
 }