Grails belongsTo, should I ?

Question

Hi,

let's go straight to the problems (with Grails 1.1.1, it should work on previous one)

I have 2 domains ie: User and Detail like this :

Class User {
   String userName ; 
   ..... // another fields 

   static hasMany = [details:Detail];
}

Class Detail{
  String detailName ;
  ... // another fields 

  static belongsTo = [user:User];
}

Now if I did :

def user = User.get(1);
Detail.findAllByUser(user);

why it produce error ?

But if i do modification on Detail

Class Detail{
      String detailName ;
      ... // another fields 

      User user; 
      static belongsTo = [user:User];
    }

(by adding user) it will work like normal ...

is there any effect using belongsTo ? or i did mistakes concept in here?

Answer 1

Your example is not how you would typically access the Details. The Details would be accessed via the User instance, for example:

def user = User.get(1)
def userDetails = user.details   // not Detail.findAllByUser(user);