ChildModelBindingPlugin

gistfile1.cs

    public class ChildModelBindingPlugin : IPlugin
    {
        public void Register(IAppHost appHost)
        {
            appHost.RequestFilters.Add(RequestFilter);
        }

        static void RequestFilter(IHttpRequest req, IHttpResponse res, object requestDto)
        {
            requestDto = Bind(requestDto, req.FormData);
        }

        static T Bind<T>(T requestDto, NameValueCollection formData)
        {
            var propertyGroups = formData.AllKeys.Where(x => x.Contains('.') && formData[x].IsNotNullOrWhiteSpace()).GroupBy(x => x.Substring(0, x.IndexOf('.')));
            foreach (var group in propertyGroups)
            {
                var propertyName = group.Key;
                var dictionary = formData.AllKeys.Where(x => x.StartsWith(propertyName)).ToDictionary(x => x.Substring(propertyName.Length + 1), x => formData[x]);
                var requestType = requestDto.GetType();
                if (requestType.GetProperties().All(x => x.Name != propertyName))
                    continue;
                var propertyValue = KeyValueDataContractDeserializer.Instance.Parse(dictionary, requestType.GetProperty(propertyName).PropertyType);
                requestDto.SetProperty(propertyName, propertyValue);
            }
            return requestDto;
        }
    }