public bool BindModel(ControllerContext controllerContext, ExtensibleModelBindingContext bindingContext)
{
ModelBinderUtil.ValidateBindingContext(bindingContext, typeof(ComplexModelDto), false /* allowNullModel */);
ComplexModelDto dto = (ComplexModelDto)bindingContext.Model;
foreach (ModelMetadata propertyMetadata in dto.PropertyMetadata)
{
ExtensibleModelBindingContext propertyBindingContext = new ExtensibleModelBindingContext(bindingContext)
{
ModelMetadata = propertyMetadata,
ModelName = ModelBinderUtil.CreatePropertyModelName(bindingContext.ModelName, propertyMetadata.PropertyName)
};
// bind and propagate the values
IExtensibleModelBinder propertyBinder = bindingContext.ModelBinderProviders.GetBinder(controllerContext, propertyBindingContext);
if (propertyBinder != null)
{
if (propertyBinder.BindModel(controllerContext, propertyBindingContext))
{
dto.Results[propertyMetadata] = new ComplexModelDtoResult(propertyBindingContext.Model, propertyBindingContext.ValidationNode);
}
else
{
dto.Results[propertyMetadata] = null;
}
}
}
return(true);
}
private ComplexModelDto CreateAndPopulateDto(
ControllerContext controllerContext,
ExtensibleModelBindingContext bindingContext,
IEnumerable <ModelMetadata> propertyMetadatas
)
{
// create a DTO and call into the DTO binder
ComplexModelDto originalDto = new ComplexModelDto(
bindingContext.ModelMetadata,
propertyMetadatas
);
ExtensibleModelBindingContext dtoBindingContext = new ExtensibleModelBindingContext(
bindingContext
)
{
ModelMetadata = MetadataProvider.GetMetadataForType(
() => originalDto,
typeof(ComplexModelDto)
),
ModelName = bindingContext.ModelName
};
IExtensibleModelBinder dtoBinder =
bindingContext.ModelBinderProviders.GetRequiredBinder(
controllerContext,
dtoBindingContext
);
dtoBinder.BindModel(controllerContext, dtoBindingContext);
return((ComplexModelDto)dtoBindingContext.Model);
}
private ComplexModelDto CreateAndPopulateDto(ControllerContext controllerContext, ExtensibleModelBindingContext bindingContext, IEnumerable<ModelMetadata> propertyMetadatas) {
// create a DTO and call into the DTO binder
ComplexModelDto originalDto = new ComplexModelDto(bindingContext.ModelMetadata, propertyMetadatas);
ExtensibleModelBindingContext dtoBindingContext = new ExtensibleModelBindingContext(bindingContext) {
ModelMetadata = MetadataProvider.GetMetadataForType(() => originalDto, typeof(ComplexModelDto)),
ModelName = bindingContext.ModelName
};
IExtensibleModelBinder dtoBinder = bindingContext.ModelBinderProviders.GetRequiredBinder(controllerContext, dtoBindingContext);
dtoBinder.BindModel(controllerContext, dtoBindingContext);
return (ComplexModelDto)dtoBindingContext.Model;
}
public virtual bool BindModel(ControllerContext controllerContext, ExtensibleModelBindingContext bindingContext)
{
ModelBinderUtil.ValidateBindingContext(bindingContext);
EnsureModel(controllerContext, bindingContext);
IEnumerable <ModelMetadata> propertyMetadatas = GetMetadataForProperties(controllerContext, bindingContext);
ComplexModelDto dto = CreateAndPopulateDto(controllerContext, bindingContext, propertyMetadatas);
// post-processing, e.g. property setters and hooking up validation
ProcessDto(controllerContext, bindingContext, dto);
bindingContext.ValidationNode.ValidateAllProperties = true; // complex models require full validation
return(true);
}
internal void ProcessDto(
ControllerContext controllerContext,
ExtensibleModelBindingContext bindingContext,
ComplexModelDto dto
)
{
HashSet <string> requiredProperties;
HashSet <string> skipProperties;
GetRequiredPropertiesCollection(
bindingContext.ModelType,
out requiredProperties,
out skipProperties
);
// Are all of the required fields accounted for?
HashSet <string> missingRequiredProperties = new HashSet <string>(requiredProperties);
missingRequiredProperties.ExceptWith(dto.Results.Select(r => r.Key.PropertyName));
string missingPropertyName = missingRequiredProperties.FirstOrDefault();
if (missingPropertyName != null)
{
string fullPropertyKey = ModelBinderUtil.CreatePropertyModelName(
bindingContext.ModelName,
missingPropertyName
);
throw Error.BindingBehavior_ValueNotFound(fullPropertyKey);
}
// for each property that was bound, call the setter, recording exceptions as necessary
foreach (var entry in dto.Results)
{
ModelMetadata propertyMetadata = entry.Key;
ComplexModelDtoResult dtoResult = entry.Value;
if (dtoResult != null)
{
SetProperty(controllerContext, bindingContext, propertyMetadata, dtoResult);
bindingContext.ValidationNode.ChildNodes.Add(dtoResult.ValidationNode);
}
}
}
internal void ProcessDto(ControllerContext controllerContext, ExtensibleModelBindingContext bindingContext, ComplexModelDto dto)
{
HashSet<string> requiredProperties;
HashSet<string> skipProperties;
GetRequiredPropertiesCollection(bindingContext.ModelType, out requiredProperties, out skipProperties);
// Are all of the required fields accounted for?
HashSet<string> missingRequiredProperties = new HashSet<string>(requiredProperties);
missingRequiredProperties.ExceptWith(dto.Results.Select(r => r.Key.PropertyName));
string missingPropertyName = missingRequiredProperties.FirstOrDefault();
if (missingPropertyName != null)
{
string fullPropertyKey = ModelBinderUtil.CreatePropertyModelName(bindingContext.ModelName, missingPropertyName);
throw Error.BindingBehavior_ValueNotFound(fullPropertyKey);
}
// for each property that was bound, call the setter, recording exceptions as necessary
foreach (var entry in dto.Results)
{
ModelMetadata propertyMetadata = entry.Key;
ComplexModelDtoResult dtoResult = entry.Value;
if (dtoResult != null)
{
SetProperty(controllerContext, bindingContext, propertyMetadata, dtoResult);
bindingContext.ValidationNode.ChildNodes.Add(dtoResult.ValidationNode);
}
}
}