NHibernate - QueryOver criteria appearing at Where in in having, error

Question

I have a problem in QueryOver where Group by is used and there are some criteria in where where. You want to move some criteria using the SUM () values ​​in the "Ads" section, but every time it appears in the Where clause and results in an error.**Error** ="*An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAVING clause or a select list, and the column being aggregated is an outer reference*"

Conjunction conjunction = Restrictions.Conjunction();
Conjunction havingconjun = Restrictions.Conjunction();

conjunction.Add<Vendor>(p => v.Name == "Some Vendor");
havingconjun.Add(Restrictions.Gt(
   Projections.Sum(Projections.Property(() => v.Payments),
   Convert.ToDouble(SomeInvoice.Value)));

var reportModels =
            Session.QueryOver<Vendor>(() => v)
    .Where(conjunction)
    .Where(havingconjun)
    .SelectList(list => list
                    .SelectGroup(() => v.Number).WithAlias(() => vModel.VendorNumber)
                    .SelectGroup(() => vtypeCode.Code).WithAlias(() => vModel.VendorType)
                    .SelectGroup(() => v.Name).WithAlias(() => vModel.VendorName))
             .TransformUsing(Transformers.AliasToBean<VendorAnalysisReportModel>())
             .List<VendorAnalysisReportModel>();

Expected Result:

SELECT 
    V.VENDORNUMBER, V.VENDORTYPE, V.VENDORNAME, SUM(V.PAYMENTS)
 FROM VENDOR V
    WHERE V.NAME = "Some Vendor"
 GROUP 
    BY V.VENDORNUMBER, V.VENDORTYPE, V.VENDORNAME
 HAVING SUM(V.PAYMENTS) > somevalue

Receiving:

SELECT 
    V.VENDORNUMBER, V.VENDORTYPE, V.VENDORNAME, SUM(V.PAYMENTS)
 FROM VENDOR V
    WHERE V.NAME = "Some Vendor" AND
    SUM(V.PAYMENTS) > somevalue
 GROUP 
    BY V.VENDORNUMBER, V.VENDORTYPE, V.VENDORNAME

Answer 1

Like many people could not find a solution to this in NHibernate, I used a simple trick to achieve my results, which I could say was a solution to this problem until NHibernate fixes it.

, .

var reportModels =
            Session.QueryOver<Vendor>(() => v)
    .Where(conjunction)
    .SelectList(list => list
                    .SelectGroup(() => v.Number).WithAlias(() => vModel.VendorNumber)
                    .SelectGroup(() => vtypeCode.Code).WithAlias(() => vModel.VendorType)
                    .SelectGroup(() => v.Name).WithAlias(() => vModel.VendorName))
             .TransformUsing(Transformers.AliasToBean<VendorAnalysisReportModel>())
             .List<VendorAnalysisReportModel>();

var vlst2 =
                    (from vendrs in reportModels orderby vendrs.VendorName ascending select vendrs)
                        .ToList<VendorAnalysisReportModel>().AsQueryable();

where, , .

vlst2 = vlst2.Where(p => p.OutstandingComm > Convert.ToDecimal(toDateComAmount.Value));

vlst2 = vlst2.Where(p => p.ToDateOrders < Convert.ToDecimal(toDateOrdAmount.Value));

, , .

QF