Use OUTER APPLY for SqlQuery<T> where T has IEnumerable properties - entity-framework-6

Question

I am using a string sql query because of performance issues with using Linq. Due to a lot of outer applies, and a lot of where clauses using IN. The code in this sample is reduced for clarity here. I left off the IF-ELSE statements that added (or not) a lot of code to the where clause.
Here is my business object, it has an IEnumerable as a property.
public class AssetBO
{
public Guid AssetId { get; set; }
public Guid SiteId { get; set; }
public string Name { get; set; }
public IEnumerable<AssetDivisionBO> AssetDivisionInfo { get; set; }
}
And here is my string sql:
string SQL_Data = #"SELECT DISTINCT e.AssetId, e.SiteId, e.Name
FROM
Asset.vAssetLinkBox e
OUTER APPLY (
SELECT
ld.AssetDivisionId,
ld.SiteId,
ld.AssetId,
ld.DivisionId,
ld.IsDeleted,
ld.Created,
ld.LastModified,
ld.ModifiedByEmployeeId,
ld.CreatedByEmployeeId,
FROM Asset.AssetDivision ld
WHERE
ld.IsDeleted = 0
AND ld.AssetId = e.AssetId
) AS AssetDivisionInfo
WHERE
e.IsDeleted = 0";
I then run this:
var query = context.Database.SqlQuery<AssetBO>(SQL_Data);
List<AssetBO> assets = query.ToList<AssetBO>();
I would like to populate the IEnumerable AssetDivisionInfo, from the OUTER APPLY in the string SQL. Is this possible?
I get my AssetBO object, and the AssetDivisionInfo is null. Is there a way to map it?
EDIT: I was asked to supply the original Linq, so posting it here now. I need all of those OUTER APPLIES returned with the data.
public static List<ModuleView.AssetBO> Asset_GetList_ByRadFilter(COG_ContextDB context, RadFilter filter, string where_clause,
Guid Base_ContextSiteId, Guid Base_ContextEmployeeId, HashSet<Guid> PassedAssetIdList,
bool Base_ContextEmployee_IsForAllDivisions,
int PageNumber, int PageSize, string OrderByField, bool IsDescending,
bool IsRestrictedByDivision, HashSet<Guid?> Employee_DivisionIdList, out int RecordCount)
{
var interceptor = new Common.BLL.CommandInterceptorHelper();
System.Data.Entity.Infrastructure.Interception.DbInterception.Add(interceptor);
HashSet<Guid> IsForAll_AssetIdList = new HashSet<Guid>();
if (IsRestrictedByDivision == true)
{
//db hit, so calling only if IsRestrictedByDivision == true
IsForAll_AssetIdList = GetIsForAllDivisions_Assets(context, Base_ContextSiteId);
}
else
{
Base_ContextEmployee_IsForAllDivisions = false;
}
var query = from e in context.vAssetLinkBoxes
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
//OUTER APPLY to get a list of AssetIds from AssetDivision table, that are in the employees DivisionIdList (divisions he has access to.) DEV-3504
let AssetIdList = (from dv in context.AssetDivisions.Where(div => div.AssetId == e.AssetId && div.IsDeleted == false && Employee_DivisionIdList.Contains(div.DivisionId)) select dv.AssetId).ToList<Guid>()
join assetUsageInfo in
(
from e in context.AssetUsages
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
where e.IsDeleted == false
select new ModuleView.AssetUsageBO
{
AssetUsageId = e.AssetUsageId,
SiteId = e.SiteId,
AssetId = e.AssetId,
AssetUsageTypeId = e.AssetUsageTypeId,
ImportId = e.ImportId,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
IsDirty = false,
IsNew = false,
}
) on e.AssetId equals assetUsageInfo.AssetId into assetUsageInfos
join assetExtendedFieldInfo in
(
from e in context.AssetExtendedFields
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
where e.IsDeleted == false
orderby e.FieldName
select new ModuleView.AssetExtendedFieldBO
{
AssetExtendedFieldId = e.AssetExtendedFieldId,
SiteId = e.SiteId,
AssetId = e.AssetId,
FieldName = e.FieldName,
FieldLabel = e.FieldLabel,
FieldValue = e.FieldValue,
FieldDataType = e.FieldDataType,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
IsDirty = false,
IsNew = false,
}
) on e.AssetId equals assetExtendedFieldInfo.AssetId into assetExtendedFieldInfos
join assetDivisionInfo in
(
from e in context.AssetDivisions
from d in context.Divisions.Where(emp => emp.DivisionId == e.DivisionId && emp.IsDeleted == false)
from a in context.Assets.Where(emp => emp.AssetId == e.AssetId && emp.IsDeleted == false)
from cbu in context.Employees.Where(emp => emp.EmployeeId == e.CreatedByEmployeeId && emp.IsDeleted == false).DefaultIfEmpty()
where e.IsDeleted == false
select new ModuleView.AssetDivisionBO
{
AssetDivisionId = e.AssetDivisionId,
SiteId = e.SiteId,
AssetId = e.AssetId,
DivisionId = e.DivisionId,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
DivisionName = d.DivisionName,
AssetName = a.Name,
IsDirty = false,
IsNew = false,
}
) on e.AssetId equals assetDivisionInfo.AssetId into assetDivisionInfos
where e.SiteId == Base_ContextSiteId
&& (IsRestrictedByDivision == false || (IsRestrictedByDivision == true && (Base_ContextEmployee_IsForAllDivisions == true || AssetIdList.Contains(e.AssetId) || IsForAll_AssetIdList.Contains(e.AssetId)))) //from outer apply
select new ModuleView.AssetBO
{
AssetId = e.AssetId,
SiteId = e.SiteId,
AssetTypeId = e.AssetTypeId,
Name = e.Name,
Description = e.Description,
UniqueIdentity = e.UniqueIdentity,
StatusId = e.StatusId,
CompanyId = e.CompanyId,
Make = e.Make,
Model = e.Model,
Year = e.Year,
SerialNumber = e.SerialNumber,
PhoneNumber = e.PhoneNumber,
Email = e.Email,
IsActive = e.IsActive,
BlockedTimeIsEnabled = e.BlockedTimeIsEnabled,
ImportId = e.ImportId,
IsForAllDivisions = e.IsForAllDivisions,
IsDeleted = e.IsDeleted,
Created = e.Created,
LastModified = e.LastModified,
ModifiedByEmployeeId = e.ModifiedByEmployeeId,
AssetTypeName = e.AssetTypeName,
StatusName = e.StatusName,
CompanyName = e.CompanyName,
ModifiedByEmployeeName = e.ModifiedByEmployeeName,
AssetUsageTypeId = e.AssetUsageTypeId,
NumCaptainsOnBoard = (e.CaptainNum == null) ? 0 : (int)e.CaptainNum,
ActivityTimeInMin = e.TotalDurationInMin,
AssetUsageInfo = assetUsageInfos,
CreatedByEmployeeId = e.CreatedByEmployeeId,
CreatedByEmployeeName = (!string.IsNullOrEmpty(cbu.FirstName)) ? cbu.LastName + ", " + cbu.FirstName : cbu.LastName,
AssetExtendedFieldInfo = assetExtendedFieldInfos,
AssetDivisionInfo = assetDivisionInfos,
DivisionDelimitedString = "", //must be here to avoid error when sorting. Sort is done in BA code.
};
if (string.IsNullOrEmpty(where_clause))
{
where_clause = DataFilterBA.GetFilterWhereClause(context, filter, "ASSET", Base_ContextEmployeeId, Base_ContextSiteId, "LINQ");
}
int SkipRows = (PageNumber - 1) * PageSize;
if (PassedAssetIdList.Count == 0)
{
RecordCount = query.Where(where_clause).Select(d => d.AssetId).Distinct().Count();
//RecordCount = query.Where(where_clause).GroupBy(test => test.AssetId)
// .Select(grp => grp.FirstOrDefault()).Count();
query = query.Where(where_clause).OrderBy(OrderByField + (IsDescending ? " descending" : ""));
}
else
{
RecordCount = query.Where(x => PassedAssetIdList.Contains(x.AssetId)).Where(where_clause).Select(d => d.AssetId).Distinct().Count();
query = query.Where(x => PassedAssetIdList.Contains(x.AssetId)).Where(where_clause).OrderBy(OrderByField + (IsDescending ? " descending" : ""));
}
List<ModuleView.AssetBO> items = new List<ModuleView.AssetBO>();
if (PageSize == -1)
{
items = query.ToList<ModuleView.AssetBO>();
}
else
{
items = query.Skip(SkipRows).Take(PageSize).ToList<ModuleView.AssetBO>();
}
System.Data.Entity.Infrastructure.Interception.DbInterception.Remove(interceptor);
if (items != null && items.Count > 0)
{
items = items.GroupBy(test => test.AssetId)
.Select(grp => grp.FirstOrDefault())
.ToList();
return items;
}
return new List<ModuleView.AssetBO>();
}