private static MetadataModel GetModel()
{
var metadataModelBuilder = new MetadataModelBuilder();
metadataModelBuilder.Exclude <EntityBase>();
metadataModelBuilder.Entity <ArticleName>().PrimaryKey.AddRange(new[] { "ArticleId", "LanguageId" });
var articleEntity = metadataModelBuilder.Entity <Article>();
metadataModelBuilder.Entity <ReceiptDetail>();
metadataModelBuilder.Entity <Invoice>().BaseEntity = metadataModelBuilder.Entity(typeof(Receipt));
var contactSettings = metadataModelBuilder.Entity <ContactSettings>();
articleEntity.HasOne(p => p.ArticleSettings).WithPrincipal();
contactSettings.HasOne(p => p.Contact).WithDependant();
metadataModelBuilder.ApplyConventions();
var model = metadataModelBuilder.ToModel();
return(model);
}