Exclude a property from mapping by code in NH3.2

[Mauro D.]

I'm using this code for mapping entities:

var inspector = (IModelInspector)new SimpleModelInspector();
ModelMapper mapper = new ModelMapper(inspector);
mapper.Class<Model.Entity>(m =>
{
m.Id(x => x.Id, g => g.Generator(Generators.Native));
m.Table("Entities");
m.Version(x => x.Version, map =>
{ map.Column("NHVersion"); });
m.Property(x => x.Data, map =>
map.Type<NHibernate.Type.BinaryBlobType>());
});

I want to be able to exclude a single property from the mapping.
There's a simple method with this mapping usage or I have to change
style and create my personal inspector inheriting from a base one?

Thanks

[fkne...@gmail.com]

Not sure if this is correct, I've used this

Property(x => x.Age,
map =>
{
map.Generated(PropertyGeneration.Never);
});


And my entity property is this

public virtual Int32? Age
{
get
{
if (!DateOfBirth.HasValue) return null;

var now = DateTime.Now;

Int32 age = now.Year - DateOfBirth.Value.Year;

if (now.Month < DateOfBirth.Value.Month)
return age;
if (now.Month > DateOfBirth.Value.Month)
return age--;
if (now.Day < DateOfBirth.Value.Day)
return age--;

return age;
}

set { }
}

This allows you to query on the property

var people = from a in _personRepository.FindAll()
where a.Age > 10
select new PersonViewModel
{
Id = a.Id,
FirstName = a.FirstName,
LastName = a.LastName,
Age = a.Age ?? 0,
City = a.Address.City
};

On , "Mauro D." <mauro...@gmail.com> wrote:
> I'm using this code for mapping entities:
>
>
>
> var inspector = (IModelInspector)new SimpleModelInspector();
>
>            ModelMapper mapper = new ModelMapper(inspector);
>

>            mapper.Class(m =>

>
>            {
>
>                m.Id(x => x.Id, g => g.Generator(Generators.Native));
>
>                m.Table("Entities");
>
>                m.Version(x => x.Version, map =>
>
> { map.Column("NHVersion"); });
>
>                m.Property(x => x.Data, map =>
>

> map.Type());

>
>            });
>
>
>
> I want to be able to exclude a single property from the mapping.
>
> There's a simple method with this mapping usage or I have to change
>
> style and create my personal inspector inheriting from a base one?
>
>
>
> Thanks
>
>
>

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[Mauro D.]

This doesn't work, property mapping is still generated.

[Neo]

mapper.IsPersistentProperty((mi, declared) => ....);
is your friend...

there is unfortunately not any generic "Exclude", method.

Search the list for more detailed answers, should you need it, as this
has been answered already.
Cheers!

[Mauro D.]

Ok this works, but I had to change ModelMapper to
ConventionModelMapper in order to be able to access
IsPersistentProperty.

That was the problem.

[Fabio Maulo]

Using ModelMapper there is no auto-inclusion so you don't need to exclude that is the reason because it is available just in  ConventionModelMapper.

[Fabio Maulo]

It is easy Neo.

The idea behind ConvetionModelMapper is that you will extend it using extension-method or, much better, inheriting it.

Well.... the real idea is that you will implement a IModelInspector to then inject it to the ModelMapper.

Implementing a IModelInspector you can expose some methods a Exclude, Persistent (the inverse of exclude for denormalized properties) and some other features... as in ConfORM