NodaTime YearMonth mapping

It would be nice to have a NodaTime YearMonth mapping, despite the fact that PostgreSQL doesn’t have a specific type for it. It could be stored as a date (rounded to the first day of the month) or perhaps as an integer the way NodaTime internally stores it.

[Shamus03]

I revisited the project where I needed this today. I thought a ValueConverter wouldn’t result in proper SQL translation, but it does actually work very well:

modelBuilder.Entity<MyReport>()
    .Property(p => p.YearMonth)
    .IsRequired()
    .Hasconversion(
        v => v.OnDayOfMonth(1),
        v => v.ToYearMonth());

All parameters/comparisons/conversions just get treated like a PostgreSQL date. It will break down if I start to need more complicated translations, but this works great for now.

Thanks for the help.

[roji]

Happy it worked out and thanks for the code snippet.