linq-to-nhibernate Questions

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I have a simple test that runs a query 5000 times. The linq version of the query takes over 3 times the HQL and the cached Linq version is significantly slower than the cached version of HQL HQL: ...
Orbital asked 6/6, 2011 at 18:54

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I have the following problem Basically I have the 2 snippets below: var contactAssociation = session.QueryOver<ContactAssociation>(() => contactAssociationAlias) .Where(() => conta...
Zante asked 15/6, 2011 at 18:12

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I'm trying to use linq to NHibernate (with Fluent NHibernate) but I have problems with linq query. Everytime I try to execute it I get this message : "Method 'get_IsReadOnlyInitialized' in typ...
Asynchronism asked 9/5, 2011 at 17:56

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I have a problem with NHibernate, I can't seem to find any solution for. In my project I have a simple entity (Batch), but whenever I try and run the following test, I get an exception. I've triede...

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we're starting a new project using NHibernate, and considering using NHibernate.Linq (The embedded version in 3.0, not the contrib project). I'm aware that this is a relatively recent addition. Has...
Androus asked 25/3, 2011 at 19:20

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Does it make sense to use an OR-mapper? I am putting this question of there on stack overflow because this is the best place I know of to find smart developers willing to give their assistance and...

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Is this possible to use let keyword with nhibernate linq? I wrote var posts = from post in postsRepository.GetPosts(name) let commentsCount = (from c in NHUnitOfWork.CurrentSession.Linq<Comme...
Ivett asked 29/10, 2010 at 21:3

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I am having a problem with duplicate blog post coming back when i run the linq statement below. The issue that a blog post can have the same tag more then once and that's causing the problem. I k...
Linger asked 11/3, 2010 at 21:5

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As far as I know group by has only been added in NHibernate 3.0, but even when using version 3, I can't get group by to work. I have tried to do the following query: Session.Query().GroupBy(gbf...
Subteen asked 21/2, 2011 at 18:45

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I have an application that uses a few data warehousing principles such as dimensional modeling to do reporting on a fairly simple database. An example (simplified) entity named Call looks like thi...
Tiros asked 7/2, 2011 at 22:1

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I have 2 objects like this public class Child { public virtual int ChildId { get; set; } } public class Parent { public virtual int ParentId { get; set; } public virtual IList<Child> Ch...
Sinew asked 19/1, 2011 at 18:25

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When I try to compile the following code using System; using System.Collections.Generic; using System.Reflection; using System.Linq; using NHibernate; namespace NewNHTest { class A { } class...
Scorn asked 12/1, 2011 at 8:31

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I've got this object graph: // Lots of stuff omitted for brevity; these are all virtual properties and there // are other properties which aren't shown on all classes. class A { B b; C c; DateT...
Conjuration asked 31/12, 2010 at 23:0

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I'm using NH 3.0 and FNH 1.1 recompiled with NH3. I have a user model where I want to always retrieve its profile when loading it. I use the linq provider from NH3 but can't use its Fetch method (...
Fake asked 7/12, 2010 at 18:39

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I'm testing out nhibernate 3 CR, but fails to create the following SQL using Linq: select * from Users as {user} inner join Test as test on test.UserId = user.Id inner join Release as release o...
Amoakuh asked 25/11, 2010 at 10:46

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How do I increase the timeout in NHibernate Linq To Sql? Not the Connection Timeout but the ado command timeout. using (ISession session = NHibernateHelper.OpenSession(NHibernateHelper.Databases...

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how can i achieve this query with Nhibernate Linq? var l = session.CreateQuery("from Auswahl a where a.Returnkey is not null").List<Auswahl>(); i tried this but it always returns an empty ...
Calise asked 27/8, 2010 at 7:29

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I've just downloaded the Linq provider for NHibernate and am just a little excited. But I don't know Linq syntax that well. I can return whole objects from a query like this: var query = from foo...
Whiles asked 15/7, 2010 at 13:24

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I need help with eager loading in with Linq in NHibernate 3 trunk version. I have a many-to-many relationship like this: public class Post { public int Id {get;set;} public IList<Tag> Ta...
Smithsonite asked 15/1, 2010 at 21:57

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There are several similar questions on this matter, by I still haven't found enough reasons to decide which way to go. The real question is, is it reasonable to abstract the NHibernate using a Rep...

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I´m using Nhibernate 2.1.2.4000 GA with Nhibernate.Linq 1.0 and latest version of FluentNhibernate downloaded from master on github. Im doing some tests and whenever I try to delete a entity retri...
Pennsylvania asked 22/1, 2010 at 22:48

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Consider a typical NHibernate context class. public class SampleContext : NHibernateContext { public SampleContext(ISession session) : base(session) { } public IQueryable<Person> People...
Claireclairobscure asked 14/12, 2009 at 20:4

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Foo has Title. Bar references Foo. I have a collection with Bars. I need a collection with Foo.Title. If i have 10 bars in collection, i'll call db 10 times. bars.Select(x=>x.Foo.Title) At t...

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I've got a problem with NHibernate trying to load a small hierarchy of data. My domain model looks like: class GrandParent { int ID{get;set;} IList<Parent> Parents {get; set;} } class Par...
Straitlaced asked 1/9, 2009 at 14:27

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Anybody know of a way to batch NHibernate queries using NHibernate.Linq like you can do with MultiCriteria and ICriteria objects? With MultiCriteria I can create something like this: var crit = s...
Zoologist asked 26/3, 2009 at 6:12

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