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  • Fluent NHibernate - Unable to parse integer as enum.

    - by Aaron Smith
    I have a column mapped to an enum with a convention set up to map this as an integer to the database. When I run the code to pull the data from the database I get the error "Can't Parse 4 as Status" public class Provider:Entity<Provider> { public virtual Enums.ProviderStatus Status { get; set; } } public class ProviderMap:ClassMap<Provider> { public ProviderMap() { Map(x => x.Status); } } class EnumConvention:IUserTypeConvention { public void Accept(IAcceptanceCriteria<IPropertyInspector> criteria) { criteria.Expect(x => x.Property.PropertyType.IsEnum); } public void Apply(IPropertyInstance instance) { instance.CustomType(instance.Property.PropertyType); } } Any idea what I'm doing wrong?

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  • FluentNhibernate many-to-many mapping - resolving record is not inserted

    - by Dmitriy Nagirnyak
    Hi, I have a many-to-many mapping defined (only relevant fields included): // MODEL: public class User : IPersistentObject { public User() { Permissions = new HashedSet<Permission>(); } public virtual int Id { get; protected set; } public virtual ISet<Permission> Permissions { get; set; } } public class Permission : IPersistentObject { public Permission() { } public virtual int Id { get; set; } } // MAPPING: public class UserMap : ClassMap<User> { public UserMap() { Id(x => x.Id); HasManyToMany(x => x.Permissions).Cascade.All().AsSet(); } } public class PermissionMap : ClassMap<Permission> { public PermissionMap() { Id(x => x.Id).GeneratedBy.Assigned(); Map(x => x.Description); } } The following test fails as there is no record inserted into User_Permission table: [Test] public void AddingANewUserPrivilegeShouldSaveIt() { var p1 = new Permission { Id = 123, Description = "p1" }; Session.Save(p1); var u = new User { Email = "[email protected]" }; u.Permissions.Add(p1); Session.Save(u); var userId = u.Id; Session.Evict(u); Session.Get<User>(userId).Permissions.Should().Not.Be.Empty(); } The SQL executed is (SQLite): INSERT INTO "Permission" (Description, Id) VALUES (@p0, @p1);@p0 = 'p1', @p1 = 1 INSERT INTO "User" (Email) VALUES (@p0); select last_insert_rowid();@p0 = '[email protected]' SELECT user0_.Id as Id2_0_, user0_.Email as Email2_0_ FROM "User" user0_ WHERE user0_.Id=@p0;@p0 = 1 SELECT permission0_.UserId as UserId1_, permission0_.PermissionId as Permissi2_1_, permission1_.Id as Id4_0_, permission1_.Description as Descript2_4_0_ FROM User_Permissions permission0_ left outer join "Permission" permission1_ on permission0_.PermissionId=permission1_.Id WHERE permission0_.UserId=@p0;@p0 = 1 We can clearly see that there is no record inserted into the User_Permissions table where it should be. Not sure what I am doing wrong and need an advice. So can you please help me to pass this test. Thanks, Dmitriy.

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  • nhibernate : One to One mapping

    - by frosty
    I have the following map. I wish to map BasketItem to the class "Product". So basically when i iterate thru the basket i can get the product name <class name="BasketItem" table="User_Current_Basket"> <id name="Id" type="Int32" column="Id" unsaved-value="0"> <generator class="identity"/> </id> <property name="ProductId" column="Item_ID" type="Int32"/> <one-to-one name="Product" class="Product"></one-to-one> </class> How do specifiy that product should match BasketItem.ProductId with Product.Id Also i've read that i should avoid one-to-one and just use one-to-many? If i was to do that how do i ensure i just get one product and not a collection.

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  • How to fluent-map this (using fluent nhibernate)?

    - by vikasde
    I have two tables in my database "Styles" and "BannedStyles". They have a reference via the ItemNo. Now styles can be banned per store. So if style x is banned at store Y then its very possible that its not banned at store Z or vice verse. What is the best way now to map this to a single entity? Should I be mapping this to a single entity? My Style entity looks like this: public class Style { public virtual int ItemNo { get; set;} public virtual string SKU { get; set; } public virtual string StyleName { get; set; } public virtual string Description { get; set; } public virtual Store Store { get; set; } public virtual bool IsEntireStyleBanned { get; set; } }

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  • NHibernate MySQL Mapping Set Column Type

    - by LnDCobra
    In my MySQL database, I have the following column type. Field | Type | Null | ---------------------------------- Column_priv | set('Select','Insert','Update','References') | No | And I cannot figure out what to map this to. Can anyone tell me how I can map this to something?

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  • NHibernate - Mapping tagging of entities

    - by ZNS
    Hi! I've been wrecking my mind on how to get my tagging of entities to work. I'll get right into some database structuring: tblTag TagId - int32 - PK Name tblTagEntity TagId - PK EntityId - PK EntityType - string - PK tblImage ImageId - int32 - PK tblBlog BlogId - int32 - PK class Image Id EntityType { get { return "MyNamespace.Entities.Image"; } IList Tags; class Blog Id EntityType { get { return "MyNamespace.Entities.Blog"; } IList Tags; The obvious problem I have here is that EntityType is an identifer but doesn't exist in the database. If anyone could help with the this mapping I'd be very grateful.

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  • NHibernate ManyToMany Relationship Cascading AllDeleteOrphan StackOverflowException

    - by Chris
    I have two objects that have a ManyToMany relationship with one another through a mapping table. Though, when I try to save it, I get a stack overflow exception. The following is the code for the mappings: //EventMapping.cs HasManyToMany(x => x.Performers).Table("EventPerformer").Inverse().Cascade.AllDeleteOrphan().LazyLoad().ParentKeyColumn("EventId").ChildKeyColumn("PerformerId"); //PerformerMapping.cs HasManyToMany<Event>(x => x.Events).Table("EventPerformer").Inverse().Cascade.AllDeleteOrphan().LazyLoad().ParentKeyColumn("PerformerId").ChildKeyColumn("EventId"); When I change the performermapping.cs to Cascade.None() I get rid of the exception but then my Event Object doesn't have the performer I associate with it. //In a unit test, paraphrased event.Performers.Add(performer); //Event eventRepository.Save<Event>(event); eventResult = eventRepository.GetById<Event>(event.id); //Event eventResult.Performers[0]; //is null, should have performer in it How should I be writing this properly? Thanks

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  • Nhibernate: one-to-many, based on multiple keys?

    - by e36M3
    Lets assume I have two tables Table tA ID ID2 SomeColumns Table tB ID ID2 SomeOtherColumns I am looking to create a Object let's call it ObjectA (based on tA), that will have a one-to-many relationship to ObjectB (based on tB). In my example however, I need to use the combination of ID and ID2 as the foreign key. If I was writing SQL it would look like this: select tB.* from tA, tB where tA.ID = tB.ID and tA.ID2 = tB.ID2; I know that for each ID/ID2 combination in tA I should have many rows in tB, therefor I know it's a one-to-many combination. Clearly the below set is not sufficient for such mapping as it only takes one key into account. <set name="A2" table="A2" generic="true" inverse="true" > <key column="ID" /> <one-to-many class="A2" /> </set> Thanks!

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  • Fluent Nhibernate Mapping Single class on two database tables

    - by nabeelfarid
    Hi guys, I am having problems with Mapping. I have two tables in my database as follows: Employee and EmployeeManagers Employee EmployeeId int Name nvarchar EmployeeManagers EmployeeIdFk int ManagerIdFk int So the employee can have 0 or more Managers. A manager itself is also an Employee. I have the following class to represent the Employee and Managers public class Employee { public virtual int Id { get; set; } public virtual string Name { get; set; } public virtual IList<Employee> Managers { get; protected set; } public Employee() { Managers = new List<Employee>(); } } I don't have any class to represent Manager because I think there is no need for it, as Manager itself is an Employee. I am using autoMapping and I just can't figure out how to map this class to these two tables. I am implementing IAutoMappingOverride for overriding automappings for Employee but I am not sure what to do in it. public class NodeMap : IAutoMappingOverride { public void Override(AutoMapping<Node> mapping) { //mapping.HasMany(x => x.ValidParents).Cascade.All().Table("EmployeeManager"); //mapping.HasManyToMany(x => x.ValidParents).Cascade.All().Table("EmployeeManager"); } } I also want to make sure that an employee can not be assigned the same manager twice. This is something I can verify in my application but I would like to put constraint on the EmployeeManager table (e.g. a composite key) so a same manager can not be assigned to an employee more than once. Could anyone out there help me with this please? Awaiting Nabeel

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  • Nhibernate Exception - Return types of SQL query were not specified

    - by Muhammad Akhtar
    I am executing SQL in hibernate and getting exception Return types of SQL query were not specified public ArrayList get(string Release, int DocId) { string query = string.Format("select ti.Id, (' Defect ' + cast(ti.onTimeId as varchar) + ' - ' + ti.Name) as Name from TrackingItems ti inner join DocumentTrackingItems dti on ti.Id = dti.ItemStepId inner join Documents doc on dti.DocumentId = doc.Id where ti.ReleaseId = '{0}' AND doc.TypeId = {1} and Doc.Name is null AND ti.Type = 'Defect'", Release, DocId); ISession session = NHibernateHelper.GetCurrentSession(); ArrayList arList = (ArrayList)session.CreateSQLQuery(query).List(); return arList; } When I run this query in SQL, it working fine. any idea what could be the issue? -------- Thanks.........

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  • Mapping of interconnection with nhibernate

    - by Mauro Destro
    I have to describe interconnection between objects. public class Entity { public string Name {get;set;} public IList<Entity> Connections {get;set;} } How can i persist this? I add another layer of complexity: querying on a specific date a connection between two entities can't be already defined. So probably I need a support table that contain a structure like Id, Source, Destination, ValidFrom, ValidUntil Mauro

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  • NHibernate cascade and inverse

    - by Kordonme
    I have three mappings as follows: public MainChapterMap() { // other properties HasMany(x => x.ClientSpecific).KeyColumn("MainChapterId"); } public MainChapterClientMap() { // other properties References(x => x.MainChapter).Column("MainChapterId"); HasMany(x => x.Details).KeyColumn("MainChapterClientId"); } public MainChapterClientDetailMap() { // other properties References(x => x.MainChapterClient).Column("MainChapterClientId"); } MainChapter has many client-specific chapters. The client-specific chapters (MainChapterClient) has many translations (MainChapterClientDetail) The dele rules should be as follow: When deleting a MainChapter Delete the MainChapterClient row Delete the MainChapterClientDetail row(s) When deleting a MainChapterClient Do NOT delete the MainChapter row Delete the MainChapterClientDetail row(s) When deleting a MainChapterClientDetail Do NOT delete the MainChapter row Do NOT delete the MainChapterClientDetail row(s) But I no matter what I end up getting this error: deleted object would be re-saved by cascade (remove deleted object from associations)[Entities.MainChapterClient#39] I'm not sure how to set up my cascades anymore. Any help are more than welcomed!

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  • NHibernate slow mapping

    - by Rob A
    My question is what can I do to determine the cause of the slowness, or what can I do to speed it up without knowing the exact cause. I am running a simple query and it appears that the mapping back to the entities is taking taking forever. The result set is 350, which is not much data in my opinion. IRepository repo = ObjectFactory.GetInstance<IRepository>(); var q = repo.Query<Order>(item => item.Ordereddate > DateTime.Now.AddDays(-40)); foreach (var order in q) { Console.WriteLine(order.TransactionNumber); } The profiler is telling me it is executing the query 7ms / 35257ms, I am assuming that the former is the actual response from the db and the latter is the time it takes NH to do it's magic. 35 seconds is too long. This is a simple mapping, one table, nested components, using fluent interface to do mappings. I just start up a simple console app and run the one query, the slowness is measured after the SessionFactory is initialized, there should only be one session, and I am not using a transaction. Thanks

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  • Load collections eagerly in NHibernate using Criteria API

    - by Zuber
    I have an entity A which HasMany entities B and entities C. All entities A, B and C have some references x,y and z which should be loaded eagerly. I want to read from the database all entities A, and load the collections of B and C eagerly using criteria API. So far, I am able to fetch the references in 'A' eagerly. But when the collections are loaded, the references within them are lazily loaded. Here is how I do it AllEntities_A = _session.CreateCriteria(typeof(A)) .SetFetchMode("x", FetchMode.Eager) .SetFetchMode("y", FetchMode.Eager) .List<A>().AsQueryable(); The mapping of entity A using Fluent is as shown below. _B and _C are private ILists for B & C respectively in A. Id(c => c.SystemId); Version(c => c.Version); References(c => c.x).Cascade.All(); References(c => c.y).Cascade.All(); HasMany<B>(Reveal.Property<A>("_B")) .AsBag() .Cascade.AllDeleteOrphan() .Not.LazyLoad() .Inverse() .Cache.ReadWrite().IncludeAll(); HasMany<C>(Reveal.Property<A>("_C")) .AsBag() .Cascade.AllDeleteOrphan() .LazyLoad() .Inverse() .Cache.ReadWrite().IncludeAll(); I don't want to make changes to the mapping file, and would like to load the entire entity A eagerly. i.e. I should get a List of A's where there will be List of B's and C's whose reference properties will also be loaded eagerly

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  • how to delete fk children in nhibernate

    - by frosty
    I would like to delete the ICollection PriceBreaks from Product. I'm using the following method. However they dont seem to delete. What am i missing. When i step thru. i notice that "product.PriceBreaks.Clear();" doesn't actually clear the items. Do i need to flush or something? public void RemovePriceBreak(int productId) { using (ISession session = EStore.Domain.Helpers.NHibernateHelper.OpenSession()) using (ITransaction transaction = session.BeginTransaction()) { var product = session.Get<Product>(productId); product.PriceBreaks.Clear(); session.SaveOrUpdate(product); transaction.Commit(); } } Here are my hbm files <class name="Product" table="Products"> <id name="Id" type="Int32" column="Id" unsaved-value="0"> <generator class="identity"/> </id> <property name="CompanyId" column="CompanyId" type="Int32" not-null="true" /> <property name="Name" column="Name"/> <set name="PriceBreaks" table="PriceBreaks" generic="true" cascade="all-delete-orphan" inverse="true" > <key column="ProductId" /> <one-to-many class="EStore.Domain.Model.PriceBreak, EStore.Domain" /> </set> </class> <class name="PriceBreak" table="PriceBreaks"> <id name="Id" type="Int32" column="Id" unsaved-value="0"> <generator class="identity"/> </id> <many-to-one name="Product" column="ProductId" not-null="true" cascade="all" class="EStore.Domain.Model.Product, EStore.Domain" /> </class> My Entities public class Product { public virtual int Id { get; set; } public virtual ICollection<PriceBreak> PriceBreaks { get; set; } public virtual void AddPriceBreak(PriceBreak priceBreak) { priceBreak.Product = this; PriceBreaks.Add(priceBreak); } } public class PriceBreak { public virtual int Id { get; set; } public virtual Product Product { get; set; } }

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  • nhibernate : mapping to column other than primary key

    - by frosty
    I have the following map. My intention is for the order.BasketId to map to orderItem.BasketId. Tho when i look at the sql i see that it's mapping order.Id to orderItem.BasketId. How do i define in my order map which order property to map against basketId. It seems to default to the primary key. <property name="BasketId" column="Basket_ID" type="Int32"/> <set name="OrderItems" table="item_basket_contents" generic="true" inverse="true" > <key column="Basket_ID" /> <one-to-many class="EStore.Domain.Model.OrderItem, EStore.Domain"/> </set>

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  • Nhibernate - Getting Exception when run a simple join query

    - by Muhammad Akhtar
    hi, I am getting issue when I run sql Query having inner join, here is what I am doing very simple ISession session = NHibernateHelper.GetCurrentSession(); string query = string.Format("select Documents.TypeId from Documents inner join DocumentTrackingItems on Documents.Id = DocumentTrackingItems.DocumentId WHERE DocumentTrackingItems.ItemStepId = {0} order by Documents.TypeId asc", 13); System.Collections.ArrayList document = (System.Collections.ArrayList)session.CreateSQLQuery(query, "document", typeof(Document)).List(); I am getting this exception Exception Details: System.IndexOutOfRangeException: Id what's wrong in my query? --- thanks

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  • NHibernate / Fluent - Mapping multiple objects to single lookup table

    - by Al
    Hi all I am struggling a little in getting my mapping right. What I have is a single self joined table of look up values of certain types. Each lookup can have a parent, which can be of a different type. For simplicities sake lets take the Country and State example. So the lookup table would look like this: Lookups Id Key Value LookupType ParentId - self joining to Id base class public class Lookup : BaseEntity { public Lookup() {} public Lookup(string key, string value) { Key = key; Value = value; } public virtual Lookup Parent { get; set; } [DomainSignature] [NotNullNotEmpty] public virtual LookupType LookupType { get; set; } [NotNullNotEmpty] public virtual string Key { get; set; } [NotNullNotEmpty] public virtual string Value { get; set; } } The lookup map public class LookupMap : IAutoMappingOverride<DBLookup> { public void Override(AutoMapping<Lookup> map) { map.Table("Lookups"); map.References(x => x.Parent, "ParentId").ForeignKey("Id"); map.DiscriminateSubClassesOnColumn<string>("LookupType").CustomType(typeof(LookupType)); } } BASE SubClass map for subclasses public class BaseLookupMap : SubclassMap where T : DBLookup { protected BaseLookupMap() { } protected BaseLookupMap(LookupType lookupType) { DiscriminatorValue(lookupType); Table("Lookups"); } } Example subclass map public class StateMap : BaseLookupMap<State> { protected StateMap() : base(LookupType.State) { } } Now I've almost got my mappings set, however the mapping is still expecting a table-per-class setup, so is expecting a 'State' table to exist with a reference to the states Id in the Lookup table. I hope this makes sense. This doesn't seem like an uncommon approach when wanting to keep lookup-type values configurable. Thanks in advance. Al

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  • Custom SQL function for NHibernate dialect

    - by Kristoffer Ahl
    I want to be able to call a custom function called "recent_date" as part of my HQL. Like this: [Date] >= recent_date() I created a new dialect, inheriting from MsSql2000Dialect and specified the dialect for my configuration. public class NordicMsSql2000Dialect : MsSql2000Dialect { public NordicMsSql2000Dialect() { RegisterFunction( "recent_date", new SQLFunctionTemplate( NHibernateUtil.Date, "dateadd(day, -15, getdate())" ) ); } } var configuration = Fluently.Configure() .Database( MsSqlConfiguration.MsSql2000 .ConnectionString(c => .... ) .Cache(c => c.UseQueryCache().ProviderClass<HashtableCacheProvider>()) .Dialect<NordicMsSql2000Dialect>() ) .Mappings(m => ....) .BuildConfiguration(); When calling recent_date() I get the following error: System.Data.SqlClient.SqlException: 'recent_date' is not a recognized function name I'm using it in a where statement for a HasMany-mapping like below. HasMany(x => x.RecentValues) .Access.CamelCaseField(Prefix.Underscore) .Cascade.SaveUpdate() .Where("Date >= recent_date()"); What am I missing here?

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  • Fluent Nhibernate left join

    - by Ronnie
    I want to map a class that result in a left outer join and not in an innner join. My composite user entity is made by one table ("aspnet_users") and an some optional properties in a second table (like FullName in "users"). public class UserMap : ClassMap<User> { public UserMap() { Table("aspnet_Users"); Id(x => x.Id, "UserId").GeneratedBy.Guid(); Map(x => x.UserName, "UserName"); Map(x => x.LoweredUserName, "LoweredUserName"); Join("Users",mm=> { mm.Map(xx => xx.FullName); }); } } this mapping result in an inner join select so no result come out is second table as no data. I'd like to generate an left join. Is this possible only at query level?

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  • How to access the backing field of an inherited class using fluent nhibernate

    - by Akk
    How do i set the Access Strategy in the mapping class to point to the inherited _photos field? public class Content { private IList<Photo> _photos; public Content() { _photos = new List<Photo>(); } public virtual IEnumerable<Photo> Photos { get { return _photos; } } public virtual void AddPhoto() {...} } public class Article : Content { public string Body {get; set;} } I am currently using thw following to try and locate the backing field but an exception is thrown as it cannot be found. public class ArticleMap : ClassMap<Article> { HasManyToMany(x => x.Photos) .Access.CamelCaseField(Prefix.Underscore) //_photos //... } i tried moving the backing field _photos directly into the class and the access works. So how can i access the backing field of an inherited class?

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  • nhibernate : how to intialise child list objects

    - by frosty
    I have the following method in my repository. This works fine, my orderItems are initialised as intended however orderItems contains another collection called OrderItemAddress. These are not initialised. How would i do this? public Model.Order Get(int id) { using (ISession session = NHibernateHelper.OpenSession()) { Model.Order order = session .CreateCriteria(typeof(Model.Order)) .Add(Restrictions.Eq("Id", id)) .UniqueResult<Model.Order>(); NHibernateUtil.Initialize(order.OrderItems); return order; } }

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  • Fluent NHibernate - How to map the foreign key column as a property

    - by Steve
    I am sure this is a straightforward question but consider the following: I have a reference between company and sector as follows: public class Company { public Guid ID { get; set; } public Sector Sector { get; set; } public Guid SectorID { get; set; } } public class Sector { public Guid ID { get; set; } public string Name { get; set; } } Ok. What I want is the SectorID of the Company object to be populated after I go: (new Company()).Sector = new Sector() { Name="asdf" } and do a flush. The mapping I am using kindly creates an additional column in the database called Sector_Id in the Company table, but this is not available as a property on Company. I want the SectorID property to be filled. The mapping i am currently using in the CompanyMap is References(c = c.Sector).Cascade.All(); Does anyone have any ideas?

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