Difference between revisions of "NHibernateQueries"
(→OR, Criteria) |
(→Join without mapping) |
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== Join without mapping == | == Join without mapping == | ||
− | <source lang=" | + | <source lang="csharp"> |
IList<VATeilnehmerlistePersonViewModel> personenList = | IList<VATeilnehmerlistePersonViewModel> personenList = | ||
(from x in Session.Query<VATeilnehmer>() | (from x in Session.Query<VATeilnehmer>() |
Revision as of 22:57, 30 October 2014
NHibernate Query Samples
OR, Criteria
var query = context.Session.CreateCriteria<Tag>();
query.Add(Restrictions.Or(
Restrictions.Where<Tag>(t => t.NameDe.IsLike(searchString)),
Restrictions.Where<Tag>(t => t.NameEn.IsLike(searchString))));
return query.List<Tag>();
Join without mapping
IList<VATeilnehmerlistePersonViewModel> personenList =
(from x in Session.Query<VATeilnehmer>()
join p in Session.Query<Person>() on x.EmployeeID equals p.EmployeeID
where x.VA.Id == vaId
select new VATeilnehmerlistePersonViewModel
{
FullName = p.Fullname,
OeName = p.OeName,
OeId = p.OeID,
OeNameShort = p.OeShort,
VaTeilnehmerId = x.Id,
TeilnanmeOk = x.TeilnahmeOK,
Entschuldigt = x.Gefehlt,
}).ToList();
select item, tag
from MyItem item
join item.Tags tag
where tag.Id = (
select max(tag2.Id)
from MyItem item2
join item2.Tags tag2
where item2.Id = item.Id
group by item2.Id
)
OR, Query Over
using (DbContext context = new DbContext())
{
Tag tag = null;
return context.Session.QueryOver<Tag>()
.Where(t => t.NameDe.IsLike(searchString) || t.NameEn.IsLike(searchString))
.SelectList(
list => list.Select(x => x.Id).WithAlias(() => tag.Id)
.Select(x => x.NameDe).WithAlias(() => tag.NameDe)
.Select(x => x.NameEn).WithAlias(() => tag.NameEn))
.TransformUsing(Transformers.AliasToBean<Tag>()).List<Tag>();
}
Query over, SQL Function call
Vertrag v = null;
VertragServiceAktuell vsa = null;
Kostenart kav = null;
Kostenart kavsa = null;
var query = Session.QueryOver<BelegGruppe>()
.Inner.JoinAlias(x => x.Vertrag, () => v)
.Inner.JoinAlias(() => v.Kostenart, () => kav)
.Inner.JoinAlias(() => v.VertragServicesAktuell, () => vsa)
.Left.JoinAlias(() => vsa.Kostenart, () => kavsa)
.Where(x => x.Id == belegGruppeId)
.Where(() => vsa.Service.Id == serviceId)
.Select(Projections.SqlFunction("coalesce",
NHibernateUtil.String,
Projections.Property(() => kavsa.Nummer),
Projections.Property(() => kav.Nummer)));
return query.SingleOrDefault<string>();
Query over, Grouping und Order by und Skip und Take
var vertragObjekte = Session.QueryOver<VertragObjekt>()
.Where(x => x.VertragObjektTyp == VertragObjektTyp.Nachher)
.Where(x => x.Vertrag.Id == vertragId)
.OrderByProperty(sortName)
.SelectList(
lst => lst
.SelectGroup(x => x.ServiceNummer).WithAlias(() => vm.ServiceNummer)
.SelectGroup(x => x.ServiceBezeichnung).WithAlias(() => vm.ServiceBezeichnung))
.TransformUsing(Transformers.AliasToBean<VertragObjekteServiceViewModel>())
.Skip(startRowIndex)
.Take(maximumRows)
.List<VertragObjekteServiceViewModel>();
Query over, Disjunktion, Concunction
var disjunction = new Disjunction();
var conjunction = new Conjunction();
conjunction.Add(Restrictions.In(Projections.Property(() => v.Id), vertragIds));
conjunction.Add(() => v.Typ == VertragsTyp.Vertrag);
disjunction.Add(conjunction);
conjunction = new Conjunction();
conjunction.Add(Restrictions.In(Projections.Property(() => v.VaterVertrag.Id), vertragIds));
conjunction.Add(() => v.Typ == VertragsTyp.Untervertrag);
disjunction.Add(conjunction);
query
.Where(disjunction);
Query over, subquery und where exists
Beleg b = null;
BelegGruppe bg = null;
Vertrag v = null;
Kunde k = null;
var query = Session.QueryOver(() => bg)
.Left.JoinAlias(x => x.Vertrag, () => v)
.Left.JoinAlias(() => v.Kunde, () => k)
.Where(x => x.VorschauFreigegeben)
.Where(x => x.Periode.Monat == periode.Monat)
.Where(x => x.Periode.Jahr == periode.Jahr)
.WithSubquery.WhereExists(QueryOver.Of(() => b).Where(() => b.BelegGruppe.Id == bg.Id).Select(Projections.Property(() => b.Id)));
Query over, sum, conditional sum und max
VertragWorkflow vw = null;
WorkflowViewModel vm = null;
var query = GetWorkflowsQuery(kundeId, wft, freigabestelleUser, senderUserId, serviceNr, leistungNr, false);
var wfModels = query.Select(
Projections.Group<Workflow>(x => x.Id).WithAlias(() => vm.WorkflowId),
Projections.Group<Workflow>(x => x.WorkflowType).WithAlias(() => vm.WorkflowType),
Projections.Group<Workflow>(x => x.Status).WithAlias(() => vm.WorkflowStatus),
Projections.Group<Workflow>(x => x.InsertDate).WithAlias(() => vm.InsertDate),
Projections.Group<Workflow>(x => x.InsertUser).WithAlias(() => vm.UserId),
Projections.Group<Workflow>(x => x.KundeNr).WithAlias(() => vm.KundeNr),
Projections.Group<Workflow>(x => x.ServiceNr).WithAlias(() => vm.ServiceNr),
Projections.Group<Workflow>(x => x.LeistungNr).WithAlias(() => vm.LeistungNr),
Projections.Group<Workflow>(x => x.Von).WithAlias(() => vm.Von),
Projections.Group<Workflow>(x => x.Bis).WithAlias(() => vm.Bis),
Projections.Group<Workflow>(x => x.Preis).WithAlias(() => vm.Preis),
Projections.Group<Workflow>(x => x.Menge).WithAlias(() => vm.Menge),
Projections.Group<Workflow>(x => x.ServiceBezeichnung).WithAlias(() => vm.ServiceBezeichnung),
Projections.Group<Workflow>(x => x.BasisLeistungNr).WithAlias(() => vm.BasisLeistungNr),
Projections.Group<Workflow>(x => x.BasisLeistungBezeichnung).WithAlias(() => vm.BasisLeistungBezeichnung),
Projections.Group<Workflow>(x => x.LeistungBezeichnung).WithAlias(() => vm.LeistungBezeichnung),
Projections.Max(Projections.Property(() => vw.Nachtrag.Id)).WithAlias(() => vm.NachtragId),
Projections.Sum(Projections.Conditional(Restrictions.IsNull(Projections.Property(() => vw.Nachtrag.Id)), Projections.Constant(0), Projections.Constant(1))).WithAlias(() => vm.AnzahlNachtraege)
)
.OrderByProperty(sortName)
.TransformUsing(Transformers.AliasToBean<WorkflowViewModel>())
.Skip(startRowIndex)
.Take(maximumRows)
.List<WorkflowViewModel>();
Join mit mehreren Kriterien
BelegGruppe bg = null;
Beleg b = null;
Vertrag v = null;
Kunde k = null;
FakturaObjekt fo = null;
Service s = null;
FakturaParameterService fps = null;
FakturaParameterKunde fpk = null;
IList<string> serviceNrList = Session.QueryOver(() => bg)
.Left.JoinAlias(() => bg.Vertrag, () => v)
.Left.JoinAlias(() => v.Kunde, () => k)
.Left.JoinAlias(() => k.FakturaParameterKunden, () => fpk, x => x.Periode == bg.Periode)
.Left.JoinAlias(() => bg.Belege, () => b)
.Left.JoinAlias(() => b.FakturaObjekte, () => fo)
.Left.JoinAlias(() => fo.Service, () => s)
.Left.JoinAlias(() => fpk.FakturaParameterServices, () => fps, x => x.Service.Id == s.Id)
.SelectList(list => list.SelectGroup(() => s.Nummer))
.Where(() => bg.Id == belegGruppeId && fps.Id == null)
.List<string>();