Question

I have a User class which has a List field namely pt. This field is not initialized when User register his account. But when user goes this controller action :

def updatePt() { 
       //performs some action 
       def user = User.get(springSecurityService.principal.id)  //find the user 
       user.pt = [] 
       //on certain conditions i put values into user.pt like this 
       user.pt << "E" 
       //at last I save it 
       user.save() 
} 

But using user/show action via scaffolding I found that pt field is not saved on users object. Where I’m making a mistake?

Answer 1

You have to provide a static mapping in the Users domain class so that Grails knows the field must be persisted:

class User {
    static hasMany = [pt: String]
}