public async Task UpdateModel(ViewModel vm, string data, string props, string method, JToken[] parameters, HttpContext context, TextWriter writer)
{
var jsonSerializer = new JsonSerializer
{
NullValueHandling = NullValueHandling.Include,
ObjectCreationHandling = ObjectCreationHandling.Replace,
ContractResolver = new CustomContractResolver
{
NamingStrategy = new CamelCaseNamingStrategy()
}
};
// populate my object with client $data
JsonConvert.PopulateObject(data, vm);
// populate my object with client $props
JsonConvert.PopulateObject(props, vm);
// parse $data as original value (before any update)
var original = JObject.FromObject(vm, jsonSerializer);
try
{
// set viewmodel request data
ViewModel.SetData(vm, original);
// if has method, call in existing vms
var result = this.ExecuteMethod(method, vm, parameters, context.Request.Form.Files, context.RequestServices);
// now, get viewmodel changes on data
var current = JObject.FromObject(vm, jsonSerializer);
// merge all scripts
var scripts = ViewModel.GetClientScript(vm);
// detect changed from original to current data and send back to browser
var diff = this.GetDiff(original, current);
// write changes to writer
using (var w = new JsonTextWriter(writer))
{
var output = new JObject
{
{ "update", diff },
{ "script", scripts },
{ "result", result == null ? null : JToken.FromObject(result) }
};
await output.WriteToAsync(w);
}
}
finally
{
// dispose vm
vm.Dispose();
}
}
public async Task UpdateModel(ViewModel vm, string data, string props, string method, JToken[] parameters, IFormFileCollection files, TextWriter writer)
{
// populate my object with client $data
JsonConvert.PopulateObject(data, vm, Config.JsonSettings);
// populate my object with client $props
JsonConvert.PopulateObject(props, vm, Config.JsonSettings);
// parse $data as original value (before any update)
var original = JObject.FromObject(vm);
try
{
// set viewmodel request data
ViewModel.SetData(vm, original);
// if has method, call in existing vms
var result = this.ExecuteMethod(method, vm, parameters, files);
// now, get viewmodel changes on data
var current = JObject.FromObject(vm, Config.JsonSerializer);
// merge all scripts
var scripts = ViewModel.GetClientScript(vm);
// detect changed from original to current data and send back to browser
var diff = this.GetDiff(original, current);
// write changes to writer
using (var w = new JsonTextWriter(writer))
{
var output = new JObject
{
{ "update", diff },
{ "script", scripts },
{ "result", result == null ? null : JToken.FromObject(result) }
};
await output.WriteToAsync(w);
}
}
finally
{
// dispose vm
vm.Dispose();
}
}
