映射中的强制类型转换，FluentNhibernate

Question

I have this table where a few columns are set to types that I dont want. For instance.. a column named createDate that is set to a nvarchar(50).. which by default will be treated as a string.. But I dont want it to be mapped as a string, I want it to be mapped as a DateTime-object. So how would I cast the string into a DateTime-object, during the mapping-process..

Thanks in advance

Answer 1

Basically, your mapping class is unaware of DataBase types. You can design your model with DateTime Properties and map those to the ill-typed Columns, hoping the conversion will work given the present format. I should also look up if it is possible to pass in a FormatString to parse against, if I were to try this without success.

public class Appointment
{
    public DateTime Start { get; set; }
    public DateTime End { get; set; }
}

public class AppointmentMap : ClassMap<Appointment>
{
    public AppointmentMap()
    {
        Map(x => x.Start, "StartDateStringColumn");
        Map(x => x.End, "EndDateStringColumn");
    }
}