Grails: Property Null error
- by richardhell
I've a domain called Modulo with some properties and a Controller with a method that create a object from model and save it, when execute save the shell show this error:
La propiedad [{0}]  de la clase [{1}] no puede ser nulo
But if i set the constraint nullable to true, the error show again. I think that i should not set this cosntraint. 
The model is linked to a mysql table with all properties except id allow null. 
I think I am not doing something wrong here. Any advice??
Domain: Modulo
class Modulo {
    String nombre
    String icon
    String url
//static constraint = {
  //    url(nullable:true)
  //}
  }
Controller: Example
class ExampleController {
    def index = { 
       def modulo = new Modulo(
         nombre:'xxx',
         icon:'xxx'
        )
        if (modulo.save()){
          println 'ok'
        }else{
          modulo.errors.allErrors.each { println it.defaultMessage}
        }
    }
}
Thanks. José