When ever you set a string value in fluent NHibernate it alwasy sets the DB vales to Nvarchar(255), I need to store quite a lot of long string which are based on user inputs and 255 is impractical.
Just to add this is an issue with the automapper as I am using fluent NHibernate to build the database.
Adding this convention will set the default length for string properties to 10000. As others have noted, this will be a nvarchar(max) column.
public class StringColumnLengthConvention : IPropertyConvention, IPropertyConventionAcceptance
{
public void Accept(IAcceptanceCriteria<IPropertyInspector> criteria)
{
criteria.Expect(x => x.Type == typeof(string)).Expect(x => x.Length == 0);
}
public void Apply(IPropertyInstance instance)
{
instance.Length(10000);
}
}
Conventions can be added to an automap configuration like this:
Fluently.Configure()
.Mappings( m =>
m.AutoMappings.Add( AutoMap.AssemblyOf<Foo>()
.Conventions.Add<StringColumnLengthConvention >()))
For more information, see Conventions in the Fluent NHibernate wiki.