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  • nHibernate Mapping file

    - by bharat
    <property name="NetworkRunId" column="Network_Run_Id" /> <property name="StudyKey" column="Study_Key" insert="false" update="false" /> <property name="AnnualizationFactor" column="Annualization_Factor" /> <property name="CreateDate" column="Create_Date" /> <property name="ModifyDate" column="Modify_Date" /> <many-to-one name="StudyInfo" class="Study" lazy="false" cascade="save-update"> <column name="Study_Key" /> </many-to-one> <many-to-one name="MemberInfo" class="BusinessDataEntities.Domain.NetworkAdministration.VHAMemberCompany, BusinessDataEntities" lazy="false"> <column name="Member_ID" /> </many-to-one> <many-to-one name="NetworkRunStudyXrefInfo" class="BusinessDataEntities.Domain.NetworkAdministration.NetworkRunStudyXref, BusinessDataEntities" lazy="false"> <column name="Network_Run_Id" /> </many-to-one> <join table="[HCO_Spend_Network_Run_Study]"> <key column="HCO_Spend_Id" /> <property name="NetworkRunId" column="Network_Run_Id" insert="false" update="false"/> </join> issue with the Network run id not exist in the first table but i have a join that is having the Network_Run_Id as property how do i fix this

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  • NHibernate: how to handle entity-based validation using session-per-request pattern, without control

    - by Seth Petry-Johnson
    What is the best way to do entity-based validation (each entity class has an IsValid() method that validates its internal members) in ASP.NET MVC, with a "session-per-request" model, where the controller has zero (or limited) knowledge of the ISession? Here's the pattern I'm using: Get an entity by ID, using an IFooRepository that wraps the current NH session. This returns a connected entity instance. Load the entity with potentially invalid data, coming from the form post. Validate the entity by callings its IsValid() method. If valid, call IFooRepository.Save(entity). Otherwise, display error message. The session is currently opened when the request begins and flushed when the request ends. Since my entity is connected to a session, flushing the session attempts to save the changes even if the object is invalid. What's the best way to keep validation logic in the entity class, limit controller knowledge of NH, and avoid saving invalid changes at the end of a request? Option 1: Explicitly evict on validation failure, implicitly flush: if the validation fails, I could manually evict the invalid object in the action method. If successful, I do nothing and the session is automatically flushed. Con: error prone and counter-intuitive ("I didn't call .Save(), why are my invalid changes being saved anyways?") Option 2: Explicitly flush, do nothing by default: By default I can dispose of the session on request end, only flushing if the controller indicates success. I'd probably create a SaveChanges() method in my base controller that sets a flag indicating success, and then query this flag when closing the session at request end. Pro: More intuitive to troubleshoot if dev forgets this step [relative to option 1] Con: I have to call IRepository.Save(entity)' and SaveChanges(). Option 3: Always work with disconnected objects: I could modify my repositories to return disconnected/transient objects, and modify the Repo.Save() method to re-attach them. Pro: Most intuitive, given that controllers don't know about NH. Con: Does this defeat many of the benefits I'd get from NH?

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  • how do i filter my lucene search results?

    - by Andrew Bullock
    Say my requirement is "search for all users by name, who are over 18" If i were using SQL, i might write something like: Select * from [Users] Where ([firstname] like '%' + @searchTerm + '%' OR [lastname] like '%' + @searchTerm + '%') AND [age] >= 18 However, im having difficulty translating this into lucene.net. This is what i have so far: var parser = new MultiFieldQueryParser({ "firstname", "lastname"}, new StandardAnalyser()); var luceneQuery = parser.Parse(searchterm) var query = FullTextSession.CreateFullTextQuery(luceneQuery, typeof(User)); var results = query.List<User>(); How do i add in the "where age = 18" bit? I've heard about .SetFilter(), but this only accepts LuceneQueries, and not IQueries. If SetFilter is the right thing to use, how do I make the appropriate filter? If not, what do I use and how do i do it? Thanks! P.S. This is a vastly simplified version of what I'm trying to do for clarity, my WHERE clause is actually a lot more complicated than shown here. In reality i need to check if ids exist in subqueries and check a number of unindexed properties. Any solutions given need to support this. Thanks

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  • LINQ-to-SQL Query Timing Out

    - by kevinw
    I'm running this query in LINQ: var unalloc = db.slot_sp_getUnallocatedJobs("Repair", RadComboBox1.SelectedValue, 20); It runs when I first open the page, but when I go back to it and try to run the same query with a different value, "Con", being passed through, the linq to sql designer.cs tells me that I've got a timeout error. Any ideas? Edit: This is what's in the designer: [Function(Name="dbo.slot_sp_getUnallocatedJobs")] Public ISingleResult<slot_sp_getUnallocatedJobsResult> slot_sp_getUnallocatedJobs([Parameter(Name="JobType", DbType="VarChar(20)")] string jobType, [Parameter(Name="Contract", DbType="VarChar(10)")] string contract, [Parameter(Name="Num", DbType="Int")] System.Nullable<int> num) { IExecuteResult result = this.ExecuteMethodCall(this, ((MethodInfo)(MethodInfo.GetCurrentMethod())), jobType, contract, num); return ((ISingleResult<slot_sp_getUnallocatedJobsResult>)(result.ReturnValue)); } } This is the error: SQLException was unhandled by user code Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

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  • Fluent NHibernate Many to one mapping

    - by Jit
    I am creating a NHibenate application with one to many relationship. Like City and State data. City table CREATE TABLE [dbo].[State]( [StateId] [varchar](2) NOT NULL primary key, [StateName] [varchar](20) NULL) CREATE TABLE [dbo].[City]( [Id] [int] primary key IDENTITY(1,1) NOT NULL , [State_id] [varchar](2) NULL refrences State(StateId), [CityName] [varchar](50) NULL) My mapping is follows public CityMapping() { Id(x = x.Id); Map(x = x.State_id); Map(x = x.CityName); HasMany(x = x.EmployeePreferedLocations) .Inverse() .Cascade.SaveUpdate() ; References(x = x.State) //.Cascade.All(); //.Class(typeof(State)) //.Not.Nullable() .Cascade.None() .Column("State_id") ; } public StateMapping() { Id(x => x.StateId) .GeneratedBy.Assigned(); Map(x => x.StateName); HasMany(x => x.Jobs) .Inverse(); //.Cascade.SaveUpdate(); HasMany(x => x.EmployeePreferedLocations) .Inverse(); HasMany(x => x.Cities) // .Inverse() .Cascade.SaveUpdate() //.Not.LazyLoad() ; } Models are as follows: [Serializable] public partial class City { public virtual System.String CityName { get; set; } public virtual System.Int32 Id { get; set; } public virtual System.String State_id { get; set; } public virtual IList<EmployeePreferedLocation> EmployeePreferedLocations { get; set; } public virtual JobPortal.Data.Domain.Model.State State { get; set; } public City(){} } public partial class State { public virtual System.String StateId { get; set; } public virtual System.String StateName { get; set; } public virtual IList<City> Cities { get; set; } public virtual IList<EmployeePreferedLocation> EmployeePreferedLocations { get; set; } public virtual IList<Job> Jobs { get; set; } public State() { Cities = new List<City>(); EmployeePreferedLocations = new List<EmployeePreferedLocation>(); Jobs = new List<Job>(); } //public virtual void AddCity(City city) //{ // city.State = this; // Cities.Add(city); //} } My Unit Testing code is below. City city = new City(); IRepository<State> rState = new Repository<State>(); Dictionary<string, string> critetia = new Dictionary<string, string>(); critetia.Add("StateId", "TX"); State frState = rState.GetByCriteria(critetia); city.CityName = "Waco"; city.State = frState; IRepository<City> rCity = new Repository<City>(); rCity.SaveOrUpdate(city); City frCity = rCity.GetById(city.Id); The problem is , I am not able to insert record. The error is below. "Invalid index 2 for this SqlParameterCollection with Count=2." But the error will not come if I comment State_id mapping field in the CityMapping file. I donot know what mistake is I did. If do not give the mapping Map(x = x.State_id); the value of this field is null, which is desired. Please help me how to solve this issue.

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  • LINQ Quicksort is Unstable Except When Cascading

    - by Mystagogue
    On page 64 of "LINQ To Objects Using C# 4.0" (Tony Magennis) he states that LINQ's quicksort ordering algorithm is unstable... ...although this is simply solved by cascading the result into a ThenBy or ThenByDescending operator. Huh? Why would cascading an unstable sortation into another sortation fix the result? In fact, I'd say that isn't possible. The original order, once passed through an unstable sort, is simply lost. What am I missing here?

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  • Write subquery in Criteria of nHibernate.

    - by Bipul
    I read about subquery in Criteria, but I am still unable to grasp it properly. So, here I am taking one example and if somebody can help me writing that using subquery it will be great. Lets say we have table Employee{EmployeeId.(int),Name(string),Post(string),No_Of_years_working(int)} Now I want all the employees who are Managers and working for less than 10 years. I know that we can get the result without using subqueries but I wanna use subquery just to understand how it works in criteria. So, how I can write Criteria using subquery to get those employees. Thanks

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  • Auto mapping a IDictionary<string, myclass> with fluent nhibernate

    - by Marcus
    I have a simple class that looks like this: public class Item { // some properties public virtual IDictionary<string, Detail> Details { get; private set; } } and then I have a map that looks like this: map.HasMany(x => x.Details).AsMap<string>("Name").AsIndexedCollection<string>("Name", c => c.GetIndexMapping()).Cascade.All().KeyColumn("Item_Id")) with this map I get the following error and I don't know how to solve it? The type or method has 2 generic parameter(s), but 1 generic argument(s) were provided. A generic argument must be provided for each generic parameter.

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  • NHibernate: How to show the generated SQL-statements in the windows console

    - by Rookian
    return Fluently.Configure() .Database(MsSqlConfiguration.MsSql2008 .ConnectionString(c => c .Database(Database) .TrustedConnection() .Server(Server) ).ShowSql()) .ExposeConfiguration(c => c.SetProperty("current_session_context_class", "web")) .Mappings(m => m.FluentMappings.AddFromAssemblyOf<TeamMap>()).BuildConfiguration(); I have a web application. This configuration does not work. I also have a Console application that shall be responsible to write out all generated SQL. How can I get the generated SQL commands? Thanks in advance!

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  • Applying the Hibernate filter attribute to a Bag with a many-to-many relationship

    - by David P
    Consider the following Hibernate mapping file: <hibernate-mapping ...> <class name="ContentPackage" table="contentPackages"> <id name="Id" column="id" type="int"><generator class="native" /></id> ... <bag name="Clips" table="contentAudVidLinks"> <key column="fk_contentPackageId"></key> <many-to-many class="Clip" column="fk_AudVidId"></many-to-many> <filter name="effectiveDate" condition=":asOfDate BETWEEN startDate and endDate" /> </bag> </class> </hibernate-mapping> When I run the following command: _session.EnableFilter("effectiveDate").SetParameter("asOfDate", DateTime.Today); IList<ContentPackage> items = _session.CreateCriteria(typeof(ContentPackage)) .Add(Restrictions.Eq("Id", id)) .List<ContentPackage>(); The resulting SQL has the WHERE clause on the intermediate mapping table (contentAudVidLinks), rather than the "Clips" table even though I have added the filter attribute to the Bag of Clips. What am I doing wrong?

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  • Return Count from Netflix oData Service When the LINQ Count() Method Doesn't Work

    - by Craig Shoemaker
    Is there a way to use a LINQ expression to request a Count query from the Netflix oData service? The Netflix documentation shows that you can return counts by appending $count to a request for a collection, but a URL like this: http://netflix.cloudapp.net/Catalog/Genres/$count Is not generated from an expression like this: var count = (from g in catalog.Genres select g).Count(); The above code returns an error saying that the Count method is not supported. Is there a way to do this in LINQ, or do I just need to make WebClient request to get the value?

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  • how to call sql string from nhibernate

    - by frosty
    i have the following method, at the moment it's return the whole sql string. How would i execute the following. using (ITransaction transaction = session.BeginTransaction()) { string sql = string.Format( @"DECLARE @Cost money SET @Cost = -1 select @Cost = MAX(Cost) from item_costings where Item_ID = {0} and {1} >= Qty1 and {1} <= Qty2 RETURN (@Cost)", itemId, quantity); string mystring = session .CreateSQLQuery(sql) .ToString(); transaction.Commit(); return mystring; } // EDIT here is the final version using criteria using (ISession session = NHibernateHelper.OpenSession()) { decimal cost = session .CreateCriteria(typeof (ItemCosting)) .SetProjection(Projections.Max("Cost")) .Add(Restrictions.Eq("ItemId", itemId)) .Add(Restrictions.Le("Qty1", quantity)) .Add(Restrictions.Ge("Qty2", quantity)) .UniqueResult<decimal>(); return cost; }

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  • nhibernate virtual methods & resharper

    - by Berryl
    I am curious how other Resharper users deal wih R#'s complaint about virtual methods it thinks are unused because it can't tell that NHIb will use them at runtime. I currently leave it as a hint, reluctantly, although am tempted to shut it off completely. Cheers, Berryl

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  • Fluentnhibernate and PostgerSQL, SchemaMetadataUpdater.QuoteTableAndColumns - System.NotSupportedExc

    - by Vyacheslav
    Hello! I'm using fluentnhibernate with PostgreSQL. Fluentnhibernate is last version. PosrgreSQL version is 8.4. My code for create ISessionFactory: public static ISessionFactory CreateSessionFactory() { string connectionString = ConfigurationManager.ConnectionStrings["PostgreConnectionString"].ConnectionString; IPersistenceConfigurer config = PostgreSQLConfiguration.PostgreSQL82.ConnectionString(connectionString); FluentConfiguration configuration = Fluently .Configure() .Database(config) .Mappings(m => m.FluentMappings.Add(typeof(ResourceMap)) .Add(typeof(TaskMap)) .Add(typeof(PluginMap))); var nhibConfig = configuration.BuildConfiguration(); SchemaMetadataUpdater.QuoteTableAndColumns(nhibConfig); return configuration.BuildSessionFactory(); } When I'm execute code at line SchemaMetadataUpdater.QuoteTableAndColumns(nhibConfig); throw error: System.NotSupportedException: Specified method is not supported. Help me, please! I'm very need for solution. Best regards

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  • NHibernate Session DI from StructureMap in components

    - by Corey Coogan
    I know this is somewhat of a dead horse, but I'm not finding a satisfactory answer. First let me say, I am NOT dealing with a web app, otherwise managing NH Session is quite simple. I have a bunch of enterprise components. Those components have their own service layer that will act on multiple repositories. For example: Claim Component Claim Processing Service Claim Repository Billing Component Billing Service Billing REpository Policy Component PolicyLockService Policy Repository Now I may have a console, or windows application that needs to coordinate an operation that involves each of the services. I want to write the services to be injected with (DI) their required repositories. The Repositories should have an ISession, or similar, injected into them so that I can have this operation performed under one ISession/ITransaction. I'm aware of the Unit Of Work pattern and the many samples out there, but none of them showed DI. I'm also leery of [ThreadStatic] because this stuff can also be used from WCF and I have found enough posts describing how to do that. I've read about Business Conversations, but need something simple that each windows/console app can easily bootstrap since we have alot of these apps and some pretty inexperienced developers. So how can I configure StructureMap to inject the same ISession into each of the dependent repositories from an application? Here's a totally contrived and totally made up example without using SM (for clarification only - please don't spend energy critisizing): ConsoleApplication Main { using(ISession session = GetSession()) using(ITransaction trans = session.BeginTransaction()) { var policyRepo = new PolicyRepo(session); var policyService = new PolicyService(policyRepo); var billingRepo = new BillingRepo(session) var billingService = new BillingService(billingRepo); var claimRepo = new ClaimsRepo(session); var claimService = new ClaimService(claimRepo, policyService, billingService); claimService.FileCLaim(); trans.Commit(); } }

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  • NHibernate Projections to retrieve a Collection?

    - by Simon Söderman
    I´m having some trouble retrieving a collection of strings in a projection: say that I have the following classes public class WorkSet { public Guid Id { get; set; } public string Title { get; set; } public ISet<string> PartTitles { get; protected set; } } public class Work { public Guid Id { get; set; } public WorkSet WorkSet { get; set; } //a bunch of other properties } I then have a list of Work ids I want to retrieve WorkSet.Title, WorkSet.PartTitles and Id for. My tought was to do something like this: var works = Session.CreateCriteria<Work>() .Add(Restrictions.In("Id", hitIds)) .CreateAlias("WorkSet", "WorkSet") .SetProjection( Projections.ProjectionList() .Add(Projections.Id()) .Add(Projections.Property("WorkSet.Title")) .Add(Projections.Property("WorkSet.PartTitles"))) .List(); The Id and Title loads up just fine, but the PartTitles returns null. Suggestions please!

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  • FluentNHibernate - ClassMap vs IAutoMappingOverride

    - by Mendy
    In FluentNHibernate when should I use ClassMap and when IAutoMappingOverride<Entity> for my EntityMap classes. public class PostMap : ClassMap<Post> { public PostMap() { ... } } vs public class PostMap : IAutoMappingOverride<Post> { public void Override(AutoMapping<Post> mapping) { ... } }

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  • nested linq-to-sql queries

    - by ile
    var result = ( from contact in db.Contacts join user in db.Users on contact.CreatedByUserID equals user.UserID orderby contact.ContactID descending select new ContactListView { ContactID = contact.ContactID, FirstName = contact.FirstName, LastName = contact.LastName, Company = (from field in contact.XmlFields.Descendants("Company") select field.Value).SingleOrDefault().ToString() }).Take(10); Here I described how my database tables look like. So, contacts table has one field that is xml type. In that field is stored Company filename and I need to read it. I tried it using this way: Company = (from field in contact.XmlFields.Descendants("Company") select field.Value).SingleOrDefault().ToString() }).Take(10); but I get following error: Member access 'System.String Value' of 'System.Xml.Linq.XElement' not legal on type 'System.Collections.Generic.IEnumerable`1[System.Xml.Linq.XElement]. Any solution for this? Thanks in advance, Ile

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  • Discriminator based on joined property

    - by Andrew
    Suppose I have this relationship: abstract class Base { int Id; int JoinedId; ... } class Joined { int Id; int Discriminator; ... } class Sub1 : Base { ... } class Sub2 : Base { ... } for the following tables: table Base ( Id int, JoinedId int, ... ) table Joined ( Id int, Discriminator int, ... ) I would like to set up a table-per-hierarchy inheritance mapping for the Base, Sub1, Sub2 relationships, but using the Disciminator property from the Joined class as the discriminator. Here's the general idea for the mapping file: <class name="Base" table="Base"> <id name="Id"><generator class="identity"/></id> <discriminator /> <!-- ??? or <join> or <many-to-one>? --> <subclass name="Sub1" discriminator-value="1">...</subclass> <subclass name="Sub2" discriminator-value="2">...</subclass> </class> Is there any way of accomplishing something like this with the <discriminator>, <join>, or <many-to-one>? NHiberante seems to assume the discriminator is a column on the given table (which makes sense to me.. I know this is unorthodox). Thanks.

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  • LIKE query for DateTime in NHibernate

    - by Anry
    For a column of type varchar I could write such a query: public IList<Order> GetByName(string orderName) { using (ISession session = NHibernateHelper.OpenSession()) { return session.CreateCriteria<Order>(). Add(Restrictions.Like("Name", string.Format("%{0}%", orderName))). List<Order>(); } } How do I write a similar LIKE-query for a column that has type datetime? public IList<Order> GetByDateTime(DateTime dateTime) { using (ISession session = NHibernateHelper.OpenSession()) { return //LIKE-query } } That is, if the method is passed the date and part-time (eg "25.03.2010 19"), then displays all orders are carried out in this period of time.

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  • FluentNHibernate Many-To-One References where Foreign Key is not to Primary Key and column names are

    - by Todd Langdon
    I've been sitting here for an hour trying to figure this out... I've got 2 tables (abbreviated): CREATE TABLE TRUST ( TRUSTID NUMBER NOT NULL, ACCTNBR VARCHAR(25) NOT NULL ) CONSTRAINT TRUST_PK PRIMARY KEY (TRUSTID) CREATE TABLE ACCOUNTHISTORY ( ID NUMBER NOT NULL, ACCOUNTNUMBER VARCHAR(25) NOT NULL, TRANSAMT NUMBER(38,2) NOT NULL POSTINGDATE DATE NOT NULL ) CONSTRAINT ACCOUNTHISTORY_PK PRIMARY KEY (ID) I have 2 classes that essentially mirror these: public class Trust { public virtual int Id {get; set;} public virtual string AccountNumber { get; set; } } public class AccountHistory { public virtual int Id { get; set; } public virtual Trust Trust {get; set;} public virtual DateTime PostingDate { get; set; } public virtual decimal IncomeAmount { get; set; } } How do I do the many-to-one mapping in FluentNHibernate to get the AccountHistory to have a Trust? Specifically, since it is related on a different column than the Trust primary key of TRUSTID and the column it is referencing is also named differently (ACCTNBR vs. ACCOUNTNUMBER)???? Here's what I have so far - how do I do the References on the AccountHistoryMap to Trust??? public class TrustMap : ClassMap<Trust> { public TrustMap() { Table("TRUST"); Id(x => x.Id).Column("TRUSTID"); Map(x => x.AccountNumber).Column("ACCTNBR"); } } public class AccountHistoryMap : ClassMap<AccountHistory> { public AccountHistoryMap() { Table("TRUSTACCTGHISTORY"); Id (x=>x.Id).Column("ID"); References<Trust>(x => x.Trust).Column("ACCOUNTNUMBER").ForeignKey("ACCTNBR").Fetch.Join(); Map(x => x.PostingDate).Column("POSTINGDATE"); ); I've tried a few different variations of the above line but can't get anything to work - it pulls back AccountHistory data and a proxy for the Trust; however it says no Trust row with given identifier. This has to be something simple. Anyone? Thanks in advance.

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  • Loop to LINQ Conversion -

    - by Pino
    Ok I have the following, set-up and working great. These lines of code should do a conversion from DAL Entity (Subsonic) to a ViewModel. IList<ProductOptionModel> OptionsRetData = new List<ProductOptionModel>(); foreach (var CurProductOption in this.ProductOptions) { OptionsRetData.Add(CurProductOption.ToDataModel()); } returnData.Options = OptionsRetData.AsEnumerable(); I'd like to convert this to a LINQ single line statment and came up with the following. returnData.Options = this.ProductOptions.Select(o => o.ToDataModel()); and am recieving the following error. Server Error in '/' Application. Sequence contains no matching element So why does the first statment work but not the LINQ and, what steps can I take to resolve it.

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  • Weighted Average with LINQ

    - by jsmith
    My goal is to get a weighted average from one table, based on another tables primary key. Example Data: Table1 Key WEIGHTED_AVERAGE 0200 0 Table2 ForeignKey LENGTH PCR 0200 105 52 0200 105 60 0200 105 54 0200 105 -1 0200 47 55 I need to get a weighted average based on the length of a segment and I need to ignore values of -1. I know how to do this in SQL, but my goal is to do this in LINQ. It looks something like this in SQL: SELECT Sum(t2.PCR*t2.LENGTH)/Sum(t2.LENGTH) AS WEIGHTED_AVERAGE FROM Table1 t1, Table2 t2 WHERE t2.PCR <> -1 AND t2.ForeinKey = t1.Key; I am still pretty new to LINQ, and having a hard time figuring out how I would translate this. The result weighted average should come out to roughly 55.3. Thank you.

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