Nhibernate : Map all decimals with the same precision and scale

Question

I understand that in NHibernate, using mapping by code, I can specify the precision and scale of a decimal property like so:

Property(
    x => x.Dollars,
    m =>
        {
            m.Precision(9);
            m.Scale(6);
        }
 );

That is nice, but I was wondering if there was a way that I could easily map ALL of the decimal properties in all of the classes in an easy way. It seems kind of crazy that I would have to go through all of my mappings and update each of them by hand. Does anyone know how this can be achieved ?

Answer 1

Use the BeforeMapProperty on the ModelMapper:-

var mapper = new ModelMapper();

mapper.BeforeMapProperty += (inspector, member, customizer) =>  {
    if (member.LocalMember.GetPropertyOrFieldType() == typeof (decimal))
    {
      customizer.Precision(9);
      customizer.Scale(6);
    }
};

The only other thing to add is remove all occurrences of:-

 m => { m.Precision(9); m.Scale(6); }

from your mapping classes as these will override your convention set in BeforeMapProperty unless you have other decimals that have different scales or precisions.