ArgumentException: Static property requires null instance, non-static property requires non-null instance. (Parameter 'expression') about detached-mapper HOT 4 CLOSED

Hi @PeterDraex

The issue is because the type DateOnly is not registered as a primitive, and the library is trying to map it memember by member like an entity.
Please add this until I release the next version including DateOnly as a primitive.

                    .UseDetached(cfg =>
                    {
                        cfg.Primitives.Add(typeof(DateOnly));
                    })

On the other hand, ICollection is not supported yet, the library works with IList because it access items by index internally. So HashSet is not being supported.
Please give it a try with the primitive and temporary change ICollection to IList, if you plan to use the library I'll give priority to a solution for this.
Thanks for the feedback
Cheers

from detached-mapper.

I've registered DateOnly and NpgsqlTypes.NpgsqlTsVector as primitives and replaced ICollection with List and now it goes through! Thanks for your help!

I'm leaving the issue open in case you want to use it to track support for IEnumerable types / better error message. Otherwise, feel free to close it.

from detached-mapper.

latest version supports abstracts, interfaces and inheritance with discriminators, including ICollection
need to update the documentation, btw

from detached-mapper.

.UseDetached(cfg =>
                    {
                        cfg.Primitives.Add(typeof(DateOnly));
                    })

Just fyi, I still need to do this.

from detached-mapper.