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POFluent NHibernate: How to tell it not to map a base class
 

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  1. POFluent NHibernate: How to tell it not to map a base class
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    <p>I have been googling and stackoverflowing for the last two hours and couldn't find an answer for my question:</p> <p>I'm using ASP.NET MVC and NHibernate and all I'm trying to do is to manually map my entities without mapping its base class. I'm using the following convention:</p> <pre><code>public class Car : EntityBase { public virtual User User { get; set; } public virtual string PlateNumber { get; set; } public virtual string Make { get; set; } public virtual string Model { get; set; } public virtual int Year { get; set; } public virtual string Color { get; set; } public virtual string Insurer { get; set; } public virtual string PolicyHolder { get; set; } } </code></pre> <p>Where EntityBase SHOULD NOT be mapped.</p> <p>My NHibernate helper class looks like this:</p> <pre><code>namespace Models.Repository { public class NHibernateHelper { private static string connectionString; private static ISessionFactory sessionFactory; private static FluentConfiguration config; /// &lt;summary&gt; /// Gets a Session for NHibernate. /// &lt;/summary&gt; /// &lt;value&gt;The session factory.&lt;/value&gt; private static ISessionFactory SessionFactory { get { if (sessionFactory == null) { // Get the connection string connectionString = ConfigurationManager.ConnectionStrings["connectionString"].ConnectionString; // Build the configuration config = Fluently.Configure().Database(PostgreSQLConfiguration.PostgreSQL82.ConnectionString(connectionString)); // Add the mappings config.Mappings(AddMappings); // Build the session factory sessionFactory = config.BuildSessionFactory(); } return sessionFactory; } } /// &lt;summary&gt; /// Add the mappings. /// &lt;/summary&gt; /// &lt;param name="mapConfig"&gt;The map config.&lt;/param&gt; private static void AddMappings(MappingConfiguration mapConfig) { // Load the assembly where the entities live Assembly assembly = Assembly.Load("myProject"); mapConfig.FluentMappings.AddFromAssembly(assembly); // Ignore base types var autoMap = AutoMap.Assembly(assembly).IgnoreBase&lt;EntityBase&gt;().IgnoreBase&lt;EntityBaseValidation&gt;(); mapConfig.AutoMappings.Add(autoMap); // Merge the mappings mapConfig.MergeMappings(); } /// &lt;summary&gt; /// Opens a session creating a DB connection using the SessionFactory. /// &lt;/summary&gt; /// &lt;returns&gt;&lt;/returns&gt; public static ISession OpenSession() { return SessionFactory.OpenSession(); } /// &lt;summary&gt; /// Closes the NHibernate session. /// &lt;/summary&gt; public static void CloseSession() { SessionFactory.Close(); } } } </code></pre> <p>The error that I'm getting now, is:</p> <blockquote> <p>System.ArgumentException: 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</p> </blockquote> <p>This happens when I try to add the mappings. Is there any other way to manually map your entities and tell NHibernate not to map a base class?</p>
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    1. USAndre Gallo
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    1. COI'm not following. If you want to manually map your entities why are you using `AutoMap`?
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      1. USJames Gregory
    2. COcause that was the only way I found in the documentation where you can exclude a base type mentioned in the answers below. Do you know of any other way to exclude a base type via ClassMap?
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