Problem with mapping...

Mask89 · **Joined:** Fri Dec 11, 2009 2:55 pm **Posts:** 5

well I'm newbie of NHibernate
when i executing my nhibernate example then i receive error but I also Set Embedded Resource Property to true of xml file

Code:

public class UserData{
public void CreateUserAndSaveToDatabase() {
User u = new User();
u.ForeName = "John";
u.SureName = "Smith";
using (ISession session = factory.OpenSession()) {
using (ITransaction transaction = session.BeginTransaction()) {
session.Save(u);
transaction.Commit();
}
}
ISessionFactory factory = new NHibernate.Cfg.Configuration().Configure().BuildSessionFactory();
}

Rises Exception at session.Save(u) NHibernate.MappingException: Unknown entity class: HibernateCollaborator.Core.User

what's the problem??
would you advice me anything to solve this problem

wolli · **Posted:** Wed Dec 16, 2009 3:05 am

Can you post the mapping file and youf config file ?

Mask89 · **Joined:** Fri Dec 11, 2009 2:55 pm **Posts:** 5

wolli wrote:

Can you post the mapping file and youf config file ?

Of course...

here is web.config...

Code:

<configuration>
<configSections>
<section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/>

<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property name="connection.provider">
NHibernate.Connection.DriverConnectionProvider
</property>
<property name="connection.driver_class">
 NHibernate.Driver.SqlClientDriver
</property>
<property name="connection.connection_string">
Server=(local)\SQLEXPRESS; Database=HibernateCollaborator; Integrated Security=true; Pooling=true
</property>
<property name="dialect">
NHibernate.Dialect.MsSql2005Dialect
</property>
<property name="show_sql">
false
</property>
</session-factory>
</hibernate-configuration>
</configSections>

and User.hbm.xml

Code:

<?xml version="1.0" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="HibernateCollaborator.Core" namespace="HibernateCollaborator.Core" default-access="property" default-cascade="none" default-lazy="false" auto-import="true" >
  <class name="User" table="Users" lazy="false">
    <id name="ID" column="ID" type="Int32" unsaved-value="0">
      <generator class="native" />
    </id>
    <property name="ForeName" type="string" length="30" not-null="false">
      <column name="ForeName" sql-type="varchar" length="30" not-null="false"/>
    </property>
    <property name="SureName" type="string"  not-null="false">
      <column name="SureName" sql-type="varchar" length="30" not-null="false"/>
    </property>
    <property name="Username" type="string"  not-null="false">
      <column name="Username" sql-type="varchar" length="30" not-null="false"/>
    </property>
    <property name="Password" type="string"  not-null="false">
      <column name="Password" sql-type="varchar" length="30" not-null="false"/>
    </property>
    <property name="Email" type="string"  not-null="false">
      <column name="Email" sql-type="varchar" length="30" not-null="false"/>
    </property> 
  </class>
</hibernate-mapping>

wolli · **Posted:** Fri Dec 18, 2009 3:03 am

Ah, missed that in the first post:

ISessionFactory factory = new NHibernate.Cfg.Configuration().Configure().BuildSessionFactory();

is not enough. YOu have to somehow register the classes, either via the assembly (therefore you need "Embedded Resource") or each file on its own. You can do this in your code

http://nhforge.org/doc/nh/en/index.html#configuration-programmatic

or in the config file:
<session-factory>
... 
<mapping assembly="QuickStart" />


<mapping resource="NHibernate.Auction.Item.hbm.xml" assembly="NHibernate.Auction" />
<mapping resource="NHibernate.Auction.Bid.hbm.xml" assembly="NHibernate.Auction" />
</session-factory>

Mask89 · **Joined:** Fri Dec 11, 2009 2:55 pm **Posts:** 5

wolli wrote:

Ah, missed that in the first post:

ISessionFactory factory = new NHibernate.Cfg.Configuration().Configure().BuildSessionFactory();

is not enough. YOu have to somehow register the classes, either via the assembly (therefore you need "Embedded Resource") or each file on its own. You can do this in your code

http://nhforge.org/doc/nh/en/index.html#configuration-programmatic

or in the config file:
<session-factory>
... 
<mapping assembly="QuickStart" />


<mapping resource="NHibernate.Auction.Item.hbm.xml" assembly="NHibernate.Auction" />
<mapping resource="NHibernate.Auction.Bid.hbm.xml" assembly="NHibernate.Auction" />
</session-factory>

I just corrected my web.config file as you adviced me

Code:

<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property name="connection.provider">
NHibernate.Connection.DriverConnectionProvider
</property>
<property name="connection.driver_class">
NHibernate.Driver.SqlClientDriver
</property>
<property name="connection.connection_string">
Server=(local)\SQLEXPRESS; Database=HibernateCollaborator; Integrated Security=true; Pooling=true
</property>
<property name="dialect">
NHibernate.Dialect.MsSql2005Dialect
</property>
<property name="show_sql">
false
</property>
<mapping assembly="QuickStart" />
<mapping resource="HibernateCollaborator.Data.User.hbm.xml" assembly="HibernateCollaborator.Data" />
</session-factory>
</hibernate-configuration>

but throwed another exception Could not add assembly QuickStart

wolli · **Posted:** Fri Dec 18, 2009 6:33 am

According to your mapping, your assembly would be "HibernateCollaborator.Core", wouldn't it ?

Mask89 · **Joined:** Fri Dec 11, 2009 2:55 pm **Posts:** 5

wolli wrote:

According to your mapping, your assembly would be "HibernateCollaborator.Core", wouldn't it ?

OHH yes.. I corrected it, but there is same exception Could not add assembly QuickStart :(

wolli · **Posted:** Fri Dec 18, 2009 12:28 pm

Are you sure that your config file was updated correctly ? Check your deployment directory or whereever your stuff goes. I'm not very familiar with web applications with Visual Studio.

If that's not the case, post your new config file and the code where you build the session factory.

Mask89 · **Joined:** Fri Dec 11, 2009 2:55 pm **Posts:** 5

wolli wrote:

Are you sure that your config file was updated correctly ? Check your deployment directory or whereever your stuff goes. I'm not very familiar with web applications with Visual Studio.

If that's not the case, post your new config file and the code where you build the session factory.

wolli can you write me your email, I'll send you this example, it is not big just simple example, I just take it to learn hibernate