LINQ version of sql query with multiple joins and group by

Question

I have a SQL Query that I'm trying to rewrite as LINQ. I've gotten through the left join aspects of it but I can't manage to combine it together with the group by stuff.

Here's the SQL Query that works and performs perfectly:

select count(c.ID) as NoteCount, count(s.StatusHistoryID) as ActionCount, p.DayGoal
from Collector_Profile p 
left join StatusHistory s on s.AppUserID = p.AppUserID 
and CONVERT(varchar(10), s.StatusDateTZ, 101) = convert(varchar(10), GETDATE(), 101)
left join Claim_Notes c on c.CollectorID = p.ID 
and CONVERT(varchar(10),c.PostDateTZ,101) = convert(varchar(10), GETDATE(), 101)
where p.ID = 1338
group by p.DayGoal

What I've got so far on the LINQ query is the following:

var query = from p in _context.Collector_Profile 
    join s in _context.StatusHistory on p.AppUserID equals s.AppUserID into gs
    join c in _context.Claim_Notes on p.ID equals c.CollectorID into gc
    from s in gs.DefaultIfEmpty()
    from c in gc.DefaultIfEmpty()
    where p.ID == CollectorID
    group p by p.DayGoal into grouped

But I don't know how to handle the date comparison truncating the date in that fashion, and I don't know how to select the results back from the query. Can someone explain how to finish this up?

Answer 1

You can use DbFunctions.TruncateTime method to compare date part only.

DbFunctions.TruncateTime(s.StatusDateTZ)