Can't call method itself in grails

I got an error in my project when I try to call method it self inside body of method. I put my code in gsp.

here they are

/* Method for appending the child menu */
def createMenuChild = { obj , paramMenuArr ->
  def urlChildMenu=obj.menu.url
  def idChildMenu=obj.menu.id
  def nameChildMenu=obj.menu.name

  out << '<div><a href="'+urlChildMenu+'" class="mChld">'<< nameChildMenu<< '</div>'

  def childInstance1= Menu.findById(idChildMenu)
  def child1MenuInstance= Menu.createCriteria().list{
    eq("parentMenu",childInstance1)
    order("sequence", "asc")
  }                                     
  if (child1MenuInstance){
    child1MenuInstance.each {newIt5 ->
      def idChildMenu2=newIt5.id
      paramMenuArr.each { newIt6 -> 
        if (newIt6.menu.id == idChildMenu2){
          owner.call (child1MenuInstance,paramMenuArr)
        }
      }
    }       
  }
}开发者_运维问答

I use owner.call to call method itself. I got an error like this

Exception Message: No signature of method: bla.....

Anybody can fix it?

---

I put my code in gsp.

You should really put this kind of code in a taglib.

Anybody can fix it?

If this is just a standard recursive method, then the obvious way to perform the recursive call is:

createMenuChild(child1MenuInstance,paramMenuArr)

Try using this instead of

owner.call (child1MenuInstance,paramMenuArr)

---

your are using a closure not a common method. see: http://groovy.codehaus.org/Closures

ownler.call means that you want to call a method named "call" of the owner (class) of the closure. mayby you can fix it by replacing owner.call by createMenuChild (child1MenuInstance,paramMenuArr). this would call the closure with the given params.

---

The trick here is to predefine the closure name before assigning it.

def createMenuChild
createMenuChild = {...}

instead of

def createMenuChild = createMenuChild = {...}

Then you'll be able to reference the closure instead of invoking owner.call.