public static TSetting GetMetadataAwareOrCreateNew <TSetting>([NotNull] this ModelMetadataItem item)
where TSetting : class, IMetadataAware, new()
{
var setting = item.GetMetadataAware <TSetting>();
if (setting == null)
{
setting = new TSetting();
item.MetadataAwares.Add(setting);
}
return(setting);
}
