Multiple domain class binding in Grails controller action - grails

Question

Using grails 2.3.7. I am trying to use Grails controller action parameter binding. If I have this code:
class TestController {
def test(MyClass1 myClass1) {
log.debug(myClass1)
}
}
myClass1 is correctly fetched from DB using http://locahost:8080/myapp/test/test/1.
But now I want to pass two domain classes. I have tried this code:
class TestController {
def test(#RequestParameter('obj1') MyClass1 myClass1,
#RequestParameter('obj2') MyClass2 myclass2) {
log.debug(myClass1)
log.debug(myClass2)
}
}
And access using http://localhost:8080/myapp/test/test?obj1.id=1&obj2.id=3, nothing is fetched. Is this the right way to use data binding in controller actions? Or is this impossible?
Regards and thanks in advance.

Answer 1

You can use this and one of in your controller :
// binds request parameters to a target object
bindData(target, params)
// exclude firstName and lastName
bindData(target, params, [exclude: ['firstName', 'lastName']])
// only use parameters starting with "author." e.g. author.email
bindData(target, params, "author")
bindData(target, params, [exclude: ['firstName', 'lastName']], "author")
// using inclusive map
bindData(target, params, [include: ['firstName', 'lastName']], "author")
def User bindUser(params) {
def User user = new User()
def Human human = new Human()
bindData(user, params["user"])
bindData(human, params["humna"])
if(!human)
human.save(failOnError:true)
if(!user)
user.save(failOnError:true)
}
//alloha~
}