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typedef convention

Aaron Fischer

14 May, 2010 10:49 PM via web

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Sorry I am a little lost with this. I have a class Email which I would like to see mapped as a string in the database with a specific length. Is there a simple way to set up this convention?

1. Support Staff 2 Posted by Paul Batum on 17 May, 2010 04:49 AM

   

   Can you give us a bit more info, such as what your domain model and schema look like? Your description isn't quite specific enough.

   Also, the conventions page on the wiki might help:
   wiki.fluentnhibernate.org/conventions

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2. 3 Posted by Aaron Fischer on 17 May, 2010 04:42 PM

   

   class contact : BaseEntity
   { [StringLength(50)] public virtual String Name{ get;set;}
   public virtual Email Email{ get:set;}
   }

   public partial class Email

   {
   
       private String _Address;
   
       public Email()
       {
           _Address = String.Empty;
       }
   
       public Email( String emailAddress )
       {
           _Address = emailAddress;
       }
   
       public static implicit operator String( Email emailAddress )
       {
           return emailAddress.ToString();
       }
       public static implicit operator Email( String emailAddress )
       {
           return new Email( emailAddress );
       }
   }
   

   contact would map to
   contacts table with a varchar(50) Name column along with a varchar(255) email column.
   

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3. Support Staff 4 Posted by Paul Batum on 18 May, 2010 12:00 PM

   

   Okay you have two major options I think.
   1. Make email a component.
   2. Make email an IUserType

   Google and the nhibernate documentation will tell you more about the two options.

   I would probably try a component first.
   http://wiki.fluentnhibernate.org/Fluent_mapping#Components

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