You guys are great. I really appreciate the help.
1) I have gotten past the mappings problem. I put a reference to the
assembly in the cfg file and have been able to make progress. I could
tell it worked because it complained that I had the wrong type
("int32" doesn't work, "int" does) and I was able to fix it.
2) Your advice is good, Jason, and I have been following it, going
step by step over the last several weeks. C# is still a foreign tongue
and I'm still completely confused by strong typing, but MVC and I are
old friends (that's what we've been doing in the php world for a
while).I have no need (that I know about) for console apps but have
got my MVC functioning smoothly. Also, mbUnit. Also, JavascriptMVC.
I have read like crazy searching for a solution to this trust issue
(I'm not lazing around in the hope that ssomeone will just solve my
problem, though I have hope ;-) ). Everything I have read so far seems
to want me to recompile some parts of nH but I will jettison it before
I do that. This project needs to be maintainable in the long run. I'm
not sure what static proxy means or what I am using for dynamic ones.
I guess this must be inside nH somewhere. I will look look look.
Answer me this, please. The web tells me that this has been a problem
since at least 2005. What OS are you folks running on? I am under the
impression that W7 is not much different than Vista or Windows Server
as far as security goes.
I remain lost on the Security Exception but, thanks again for your
help.
tqii
On Mar 5, 7:42 am, Jason Meckley <[email protected]> wrote:
> you can also adjust your entity mappings like this
> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
> assembly="ExpressBook"
> namespace="ExpressBook.Services.BaseDataObjects">
> <class name="StudentBase">
> ...
> because you define the assembly and namespace in the root element you
> can then use the short name when defining your mappings.
> If you define the assembly in hibernate.config.xml, then you do not
> need to add the assembly like Harold demonstrated above. If you are
> not defining the assembly in the config file then the you need to add
> the assembly when you instantiate Nh configuration.
>
> I'm not familiar with Windows 7 or IIS 7 but I have read about the
> medium trust issue. there is an NH add on to create static proxies
> (rather than dynamic proxies) which is where the medium trust issue
> occurs. I think there is a link on NHForge to this.
>
> Since you are new to .net, C#, NH, and MVC I would recommend spiking
> examples independent of each other. Once you feel comfortable with the
> frameworks try integrating them together. for example:
> spike a vanilla MVC project and play around with it until you feel you
> understand how it works.
> spike a console application to experiment with NH
> spike a console application to experiment with C# symantics
>
> then you can integrate NH into your MVC project. when you come across
> an error you will be able to rule out some causes because you have a
> better understanding of how each framework works.
>
> On Mar 5, 2:36 am, Harold Wanyama <[email protected]> wrote:
>
>
>
> > tqwhite like Diego said you need to set up your configuration(i havent seen
> > u mention setting it up anywhere). This is such that nhibernate can be able
> > to locate your mapping files(set as embedded resources) something of the
> > sort...... Configuration cfg = new Configuration();
> > cfg.AddAssembly("assemblyName"). At least that IMO is the cause of all your
> > problems.
>
> > On Fri, Mar 5, 2010 at 6:48 AM, tqwhite <[email protected]> wrote:
> > > You obviously have it too good in Argentina. You're going to have to
> > > settle for my gratitude.
>
> > > Your patient explanation put me on the right track. I couldn't get the
> > > addAssembly version to work, but putting the mapping clause into the
> > > config file worked great. I plowed through a couple of type issues and
> > > Voila!, Security Exception.
>
> > > [SecurityException: That assembly does not allow partially trusted
> > > callers.]
> > > NHibernate.ByteCode.LinFu.ProxyFactory..cctor() +0
>
> > > I immediately went to my various bin directories and changed all of
> > > the downloaded files so they are not blocked. No dice.
>
> > > I surfed the web and read that this is a common problem for
> > > nHibernate, that it requires full trust. I looked into my IIS7 setup
> > > and it is set to "Full (internal)". I changed it to High but it made
> > > no difference.
>
> > > I googled about and found a lot of discussion of this problem. I added
>
> > > <trust level="Medium" originUrl="" />
>
> > > to the config. And this
>
> > > using System.Security;
> > > [assembly: AllowPartiallyTrustedCallers]
>
> > > to the class that configures nHibernate. No improvement so I removed
> > > them.
>
> > > I don't know how to make my copy of Windows 7 operate as "Full Trust",
> > > or honestly, what that means.
>
> > > Any thoughts?
>
> > > thanks,
> > > tqii
>
> > > On Mar 4, 5:20 pm, Diego Mijelshon <[email protected]> wrote:
> > > > My kids might probably go to the public university, which is free in
> > > > Argentina, but thanks anyway.
>
> > > > At some point in your code, you are creating a
> > > NHibernate.Cfg.Configuration
> > > > instance, from which you use BuildSessionFactory() to get the
> > > sessionFactory
> > > > you're using there.
> > > > You need to tell the configuration where to get the mappings from.
> > > > Since you already have the hbm.file(s) embedded in your assembly, you
> > > > can
> > > > either:
> > > > - use the <mapping assembly="Assembly name"/> in the hibernate.cfg.xml
> > > file
> > > > - call configuration.AddAssembly(assembly) with the appropriate assembly
> > > > instance or name.
>
> > > > Diego
>
> > > > On Thu, Mar 4, 2010 at 20:11, tqwhite <[email protected]> wrote:
> > > > > First, tell me where your kids are going to college so I can start
> > > > > scholarships for them. I can't tell you how much I appreciate this
> > > > > help.
>
> > > > > Also, I should note, so you can interpret my dopiness properly, that
> > > > > I'm new to C#, .NET, strongly typed languages and WIndows. I've been a
> > > > > php guy for the last decade, however.
>
> > > > > I don't know how I am building my configuration. I have a working .NET
> > > > > MVC project. I referenced in nHibernate (and Lin Fu when I got an
> > > > > error requesting it). I grabbed hibernate.cfg.xml from the download
> > > > > and changed the database string. Is that the configuration you mean?
>
> > > > > I checked my project's properties to make sure that I have the right
> > > > > assembly name. Is this what you are talking about:<hibernate-mapping
> > > > > xmlns="urn:nhibernate-mapping-2.2" assembly="ExpressBook"
> > > > > namespace="ExpressBook">?
>
> > > > > I suspect that I am missing the meaning of your questions. Please ask
> > > > > me more.
>
> > > > > thanks,
> > > > > tqii
>
> > > > > On Mar 4, 4:54 pm, Diego Mijelshon <[email protected]> wrote:
> > > > > > How are you building your configuration?
> > > > > > More specifically, how are you adding the assembly?
>
> > > > > > Diego
>
> > > > > > On Thu, Mar 4, 2010 at 19:06, tqwhite <[email protected]> wrote:
> > > > > > > I've spent the last two days trying to get my first bit of
> > > nHibernate
> > > > > > > to work. I am in "No Persister" hell.
>
> > > > > > > Following is everything I have relative to this problem (what I've
> > > > > > > tried, environment, file names, xml, classes, error text).
>
> > > > > > > Please, for the love of all that is holy, help me!!
>
> > > > > > > tqii
>
> > > > > > > What I've tried:
>
> > > > > > > I've moved the file around everywhere that makes sense. It is
> > > > > > > presently in the same directory as the class.
> > > > > > > I took out the class definition. Nothing changes at all.
> > > > > > > I inserted stupid assembly and namespace definitions. Nothing
> > > changes
> > > > > > > at all.
> > > > > > > I recreated my starter project a few times. Doesn't matter.
> > > > > > > All of the alternatives to "embedded resource" that seemed
> > > relevant.
> > > > > > > It is presently embedded.
> > > > > > > I changed the code to refer to a new class with a different name
> > > but
> > > > > > > left the hbm unchanged. Same error, different name.
>
> > > > > > > Environment:
>
> > > > > > > Windows 7
> > > > > > > ASP.NET MVC
> > > > > > > ASP.NET 3.5 sp1
> > > > > > > Visual Studio 2008
>
> > > > > > > File names:
>
> > > > > > > In the same directory
> > > > > > > studentBase.cs
> > > > > > > studentBase.hbm.xml
>
> > > > > > > Also, hibernate.cfg.xml is in the top directory of the project. I
> > > used
> > > > > > > the sample with no changes except the connection string. I think
> > > this
> > > > > > > is being found properly because I can induce errors by changing
> > > > > > > it.
>
> > > > > > > StudentBase.hbm.xml:
>
> > > > > > > <?xml version="1.0" encoding="utf-8" ?>
> > > > > > > <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
> > > > > > > assembly="ExpressBook" namespace="ExpressBook">
> > > > > > > <class name="ExpressBook.Services.BaseDataObjects.StudentBase,
> > > > > > > ExpressBook">
> > > > > > > <id name="id" column="id" type="int32" unsaved-value="0">
> > > > > > > <generator class="native">
> > > > > > > </generator>
> > > > > > > </id>
> > > > > > > <property name="first" column="first" type="text"
> > > not-null="false"/
>
> > > > > > > <property name="last" column="last" type="text"
> > > not-null="false"/>
> > > > > > > </class>
>
> > > > > > > </hibernate-mapping>
>
> > > > > > > StudentBase.cs:
>
> > > > > > > using System;
> > > > > > > using System.Collections.Generic;
> > > > > > > using System.Linq;
> > > > > > > using System.Web;
>
> > > > > > > namespace ExpressBook.Services.BaseDataObjects
> > > > > > > {
> > > > > > > public class StudentBase
> > > > > > > {
> > > > > > > public virtual int id { get; set; }
> > > > > > > public virtual string first { get; set; }
> > > > > > > public virtual string last { get; set; }
> > > > > > > }
> > > > > > > }
>
> > > > > > > The Offending Code:
>
> > > > > > > Line 20: NHibernate.ISession session =
> > > > > > > sessionFactory.OpenSession();
> > > > > > > Line 21:
> > > > > > > Line 22: return
> > > > > > > session.Get<Services.BaseDataObjects.StudentBase>(id);
>
> > > > > > > The Error Message:
>
> > > > > > > Stack Trace:
>
> > > > > > > [MappingException: No persister for:
> > > > > > > ExpressBook.Services.BaseDataObjects.StudentBase]
> > > > > > > NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String
> > > > > > > entityName) +103
>
> > > NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent
> > > > > > > event, LoadType loadType) +112
> > > > > > > NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType
> > > > > > > loadType) +159
> > > > > > > NHibernate.Impl.SessionImpl.Get(String entityName, Object id)
> > > +186
> > > > > > > NHibernate.Impl.SessionImpl.Get(Type entityClass, Object id)
> > > > > > > +137
> > > > > > > NHibernate.Impl.SessionImpl.Get(Object id) +175
> > > > > > > ExpressBook.Models.Student.getStudentById(Int32 id) in C:\Users
> > > > > > > \tqwhite\Documents\Visual Studio
> > > 2008\Projects\ExpressBook\ExpressBook
> > > > > > > \Models\Student.cs:22
> > > > > > > ExpressBook.Controllers.DistrictController.getStudentById(Int32
> > > id)
> > > > > > > in C:\Users\tqwhite\Documents\Visual Studio
> > > 2008\Projects\ExpressBook
> > > > > > > \ExpressBook\Controllers\DistrictController.cs:22
> > > > > > > lambda_method(ExecutionScope , ControllerBase , Object[] ) +79
> > > > > > > System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase
> > > > > > > controller, Object[] parameters) +17
>
> ...
>
> read more »
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