Best practice calling scalar functions with Entity Framework Core (2.1)

Question

I often need to call scalar functions that are defined on a SQL Server from my web applications (ASP.NET Core / EF Core). Since these functions are just simple helper functions

Answer 1

Unfortunately it seems this feature has been left aside: https://github.com/aspnet/EntityFrameworkCore/issues/9810

An option is to wrap the functions calls in a static class using a small table which is never empty:

public static class DbFunctions
{
   public static decimal MyFunctionABC(int param1, int param2)
   {
       using (var db = new MyDbContext())
       {
        return db.table.Take(1).Select(t => MyDbContext.MyFunctionABC(x, y)).Single();
       }
    }
 }

Then you can call DbFunctions.MyFunctionABC(x,y);