GORM Querying multiple collections

Question

I am working with Grails and MongoDB. I have two domain classes User and AddWebsite. A User hasMany websites and each website belongs to a user. The domain classes are as follows:

class AddWebsite{
String website
User user
static belongsTo = [user: User]
static constraints = {
    website url:true
    user nullable:true
}
}

The Other domain class is as follows:

class User {
    String login
    String password
    static hasMany = [
        addWebsites: AddWebsite
    ]
    static mapping = {
        addWebsites cascade:"all-delete-orphan"
      }
    static constraints = {
        }
    }

I need to query the AddWebsite table based on the current logged in user and get the websites of that particular user. Can anyone suggest any approach?

Answer 1

You need to create a createCriteria List as follow

def c = AddWebsite.createCriteria()
def results = c.list {

           //find the user based on the relationship
             user {

                   ideq(userobj?.id.toLong())

              }

          //you can user projection here if u need a single value

    }