ICustomAttributesProvider patch

[vitalya]

Hello,

We're going to use AutoMapper to map our model entities to DTO's, but
faced a problem with translating validation rules defined on the
entity with Castle.Validator attributes. To perform such transition we
should be able to get custom attributes from source property. The
possible solution for this is to inherit IMemberGetter interface from
ICustomAttributesProvider. It seems to be a nice feature, so i've
uploaded a patch to group files.

member_getter_implements_i_custom_attribute_provider.patch

What do you think about this?

Thanks in advance

[Jimmy Bogard]

Hi Vitalya,

It looks interesting, but I can't figure out what adding this information to the IMemberGetter will do for anyone.  How would this help with the Castle.Validator issue?

[vitalya]

Hi Jimmy,

To build our views we're using strongly typed helpers that accept
lambda expressions for Dto properties. For example we have the
following model:
public class Person
{
[ValidateNonEmpty]
public string FirstName {get;set;}
}
public class PersonDto : IDto<Person>
{
public string FirstName {get;set;}
}

In the view the helper looks like this:
Html<PersonDto>.TextboxWitValidationFor(p => p.FirstName)

So our helper needs somehow to access original properties to get
original validation attributes. From IDto<> interface we know original
type, but we don't know from which property validation definition
should be taken. I've already implemented this via reflection:
IValueResolver modelPropertyAccessor = GetModelPropertyAccessor
(dtoType, dtoPropertyName);
return ReflectionHelper
.GetFieldValue<PropertyInfo>(modelPropertyAccessor, "_propertyInfo")
.GetCustomAttributes(typeof(AbstractValidationAttribute), true)
.Cast<AbstractValidationAttribute>();

But having this in API seems to be more natural, so i've provided a
patch.

Hopefully it makes sense

On Oct 19, 1:40 am, Jimmy Bogard <jimmy.bog...@gmail.com> wrote:
> Hi Vitalya,
>
> It looks interesting, but I can't figure out what adding this information to
> the IMemberGetter will do for anyone.  How would this help with the
> Castle.Validator issue?
>

[Jimmy Bogard]

Ah yes, that makes more sense.  Thanks for the explanation!

[Jimmy Bogard]

I finally got this one in, in R142.  Thanks for the patch!

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[maverick su]

Hi,

Just wondering where can I obtain the member_getter_implements_i_custom_attribute_provider.patch file?

Thanks in advance

[Jimmy Bogard]

Man i've looked everywhere. That was 4 years ago, I think it's gone :(

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