L2E many to many query

Posted by 5YrsLaterDBA on Stack Overflow See other posts from Stack Overflow or by 5YrsLaterDBA
Published on 2010-04-15T13:23:45Z Indexed on 2010/04/15 15:03 UTC
Read the original article Hit count: 536

I have four tables:

Users                  PrivilegeGroups        rdPrivileges        LinkPrivilege
-----------            ----------------       ---------------     ---------------
userId(pk)             privilegeGroupId(pk)   privilegeId(pk)     privilegeId(pk, fk)
privilegeGroupId(fk)   name                   code                privilegeGroupId(pk, fk)

L2E will not create LinkPrivilege entity for me. So we only have Users, PrivilegeGroups and rdPrivileges entities. PrivilegeGroups and rdPrivileges are many to many relationship.

What I need to do is retrieve all code from rdPrivileges table based on a passed in userId. How can I do it?

EDIT

working code:

var acc = from u in db.Users
          from pg in db.PrivilegeGroups
          from p in pg.rdPrivileges
          where u.UserId == userId
             && u.PrivilegeGroups.PrivilegeGroupId == pg.PrivilegeGroupId
          select p.Code;

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