nHibernate Linq Projection
- by Craig
I am using the version 1.0 release of Linq for nHibernate. When I run
the following linq statements I receive the error
not a single-length projection: Surname
I can find very few references to this on the web and looking into the
source it says it should never occur! ClientID is a Int type and
Surname is a string. When I comment out all the string fields in the
projection and just leave ClientID it runs ok, but as soon as I add
surname back it errors.
var context = m_ClientRepository.Linq;
var result = (from client in context
from address in client.Addresses
from contact in client.Contacts
where client.Surname.StartsWith(surname)
&& client.GivenName.StartsWith(givenName)
&& contact.Value.StartsWith(phoneNumber)
group client by new { client.ClientID, client.Surname, client.GivenName } into clientGroup
select new ClientSearchDTO()
{
ClientID = clientGroup.Key.ClientID,
Surname = clientGroup.Key.Surname,
GivenName = clientGroup.Key.GivenName,
Address = clientGroup.Max(x => x.Addresses.FirstOrDefault().Address),
PhoneNumber = clientGroup.Max(x => x.Contacts.FirstOrDefault().Value)
})
.Skip(Paging.FirstRecord(pageNumber))
.Take(5);
