internal bool TryGetValue(Tuple<Type, string> cacheKey, out ModelValidator[] validators)
{
if (_cacheLock.TryEnterReadLock(0))
{
try
{
return _validatorCache.TryGetValue(cacheKey, out validators);
}
finally
{
_cacheLock.ExitReadLock();
}
}
validators = null;
return false;
}
protected override void SetProperty(HttpActionContext actionContext, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
SetPropertyPublic(actionContext, bindingContext, propertyMetadata, dtoResult, requiredValidator);
}
public virtual void SetPropertyPublic(HttpActionContext context, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
base.SetProperty(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
}
protected virtual void SetProperty(HttpActionContext actionContext, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
PropertyDescriptor propertyDescriptor = TypeDescriptorHelper.Get(bindingContext.ModelType).GetProperties().Find(propertyMetadata.PropertyName, true /* ignoreCase */);
if (propertyDescriptor == null || propertyDescriptor.IsReadOnly)
{
return; // nothing to do
}
object value = dtoResult.Model ?? GetPropertyDefaultValue(propertyDescriptor);
propertyMetadata.Model = value;
// 'Required' validators need to run first so that we can provide useful error messages if
// the property setters throw, e.g. if we're setting entity keys to null. See comments in
// DefaultModelBinder.SetProperty() for more information.
if (value == null)
{
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
if (requiredValidator != null)
{
foreach (ModelValidationResult validationResult in requiredValidator.Validate(propertyMetadata, bindingContext.Model))
{
bindingContext.ModelState.AddModelError(modelStateKey, validationResult.Message);
}
}
}
}
if (value != null || TypeHelper.TypeAllowsNullValue(propertyDescriptor.PropertyType))
{
try
{
propertyDescriptor.SetValue(bindingContext.Model, value);
}
catch (Exception ex)
{
// don't display a duplicate error message if a binding error has already occurred for this field
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
bindingContext.ModelState.AddModelError(modelStateKey, ex);
}
}
}
else
{
// trying to set a non-nullable value type to null, need to make sure there's a message
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
dtoResult.ValidationNode.Validated += CreateNullCheckFailedHandler(propertyMetadata, value);
}
}
}
// Returns true if validator execution adds a model error.
private static bool RunValidator(ModelValidator validator, ModelBindingContext bindingContext,
ModelMetadata propertyMetadata, string modelStateKey)
{
bool addedError = false;
if (validator != null)
{
foreach (ModelValidationResult validationResult in validator.Validate(propertyMetadata, bindingContext.Model))
{
bindingContext.ModelState.AddModelError(modelStateKey, validationResult.Message);
addedError = true;
}
}
return addedError;
}
