Linq 联合查询

Posted 2022-12-28 亮亮1990

query = from bp in query
                        join sm in _storeMappingRepository.Table
                        on new c1 = bp.Id, c2 = "BlogPost" equals new c1 = sm.EntityId, c2 = sm.EntityName into bp_sm
                        from sm in bp_sm.DefaultIfEmpty()
                        where !bp.LimitedToStores || storeId == sm.StoreId

                        select bp;

query = from bp in query
                        group bp by bp.Id
                        into bpGroup
                        orderby bpGroup.Key
                        select bpGroup.FirstOrDefault();