protected override IEnumerable <Results.ValidationFailure> InvokePropertyValidator(ValidationContext context, Validators.IPropertyValidator validator, string propertyName)
{
var propertyContext = new PropertyValidatorContext(context, this, propertyName);
var results = new List <ValidationFailure>();
var delegatingValidator = validator as IDelegatingValidator;
if (delegatingValidator == null || delegatingValidator.CheckCondition(propertyContext.Instance))
{
var collectionPropertyValue = propertyContext.PropertyValue as IEnumerable <TProperty>;
int count = 0;
if (collectionPropertyValue != null)
{
foreach (var element in collectionPropertyValue)
{
var newContext = context.CloneForChildValidator(context.InstanceToValidate);
newContext.PropertyChain.Add(propertyName);
newContext.PropertyChain.AddIndexer(count++);
var newPropertyContext = new PropertyValidatorContext(newContext, this, newContext.PropertyChain.ToString(), element);
results.AddRange(validator.Validate(newPropertyContext));
}
}
}
return(results);
}
/// <summary>
/// Invokes the validator asynchronously
/// </summary>
/// <param name="context"></param>
/// <param name="validator"></param>
/// <param name="propertyName"></param>
/// <param name="cancellation"></param>
/// <returns></returns>
protected override Task <IEnumerable <ValidationFailure> > InvokePropertyValidatorAsync(ValidationContext context, IPropertyValidator validator, string propertyName, CancellationToken cancellation)
{
var propertyContext = new PropertyValidatorContext(context, this, propertyName);
var results = new List <ValidationFailure>();
var delegatingValidator = validator as IDelegatingValidator;
if (delegatingValidator == null || delegatingValidator.CheckCondition(propertyContext.ParentContext))
{
var collectionPropertyValue = propertyContext.PropertyValue as IEnumerable <TProperty>;
if (collectionPropertyValue != null)
{
var validators = collectionPropertyValue.Select((v, count) => {
var newContext = context.CloneForChildValidator(context.InstanceToValidate);
newContext.PropertyChain.Add(propertyName);
newContext.PropertyChain.AddIndexer(count);
var newPropertyContext = new PropertyValidatorContext(newContext, this, newContext.PropertyChain.ToString(), v);
return(validator.ValidateAsync(newPropertyContext, cancellation)
.Then(fs => results.AddRange(fs)));
});
return
(TaskHelpers.Iterate(
validators,
cancellationToken: cancellation
).Then(() => results.AsEnumerable(), runSynchronously: true));
}
}
return(TaskHelpers.FromResult(Enumerable.Empty <ValidationFailure>()));
}
protected virtual IValidationContext CreateNewValidationContextForChildValidator(ValidationContext <T> context, TProperty value)
{
var selector = GetSelector(context, value);
var newContext = context.CloneForChildValidator(value, PassThroughParentContext, selector);
if (!context.IsChildCollectionContext)
{
newContext.PropertyChain.Add(context.RawPropertyName);
}
return(newContext);
}
