Is it possible to map private fields to table columns? about repodb HOT 3 OPEN

No, this is not possible. The hydration process onky succeed with columns projection to those writeable class properties or constructor parameters (with the same name as underlying table field).

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would it be possible to have system call out to a method on set call with the sql value object so we can set this manually?

public class User {
  public void   OnSet(SqlExecuteReuslt result) {
        _name = result"first_name"};
 }
}

Configurations.Setup().CallMethodOnSet("OnSet");

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On your class FullName with ctor argument of firstName and lastName

public class FullName
{
    private readonly string _firstName;
    private readonly string _lastName;

    public FullName(string firstName, string lastName)
    {
        _firstName = Guard.Against.NullOrWhiteSpace(firstName, nameof(_firstName));
        _lastName = Guard.Against.NullOrWhiteSpace(lastName, nameof(_lastName));
    }
}

As there are projections defined on the ctor arguments during hydration, therefore, I would expect that this would work if the underlying table has the FirstName and LastName columns.

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