HasMany Through multiple entries

I am playing around with the CourseMembership HasMany through example in the CakePHP cookbook but I cant figure out how to add a new Course and multiple entries into CourseMembership (ie student_id and grade) all at the same time.

Course hasMany Coursemmembership
Student hasMany Coursemeembership
Coursemembership belongsTo Student, Course

//CoursemmembershipsController
public function add() {
    if ($this->request->is('post')) {
        $this->Coursemembership->create();
        if ($this->Coursemembership->saveAll($this->request->data,array('deep' => true))) {
            $this->Session->setFlash(__('The coursemembership has been saved.'));
            //return $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The coursemembership could not be saved. Please, try again.'));
        }
        debug($this->request->data);
    }
    $courses = $this->Coursemembership->Course->find('list');
    $students = $this->Coursemembership->Student->find('list');
    $this->set(compact('courses', 'students'));
}

__

//Coursemembership/view/add
$this->Form->create('Coursemembership'); 


    echo $this->Form->input('Course.name');
    echo $this->Form->input('0.Coursemembership.student_id');
    echo $this->Form->input('0.Coursemembership.grade');

    echo $this->Form->input('1.Coursemembership.student_id');
    echo $this->Form->input('1.Coursemembership.grade');
?>

The data array successfully saves, inserts a new Course fine, but inserts only 1 Coursemembership entry with no student_id or grade.

Data array looks like:

array(
'Course' => array(
    'name' => 'Math 101'
),
(int) 0 => array(
    'Coursemembership' => array(
        'student_id' => '1',
        'grade' => '5'
    )
),
(int) 1 => array(
    'Coursemembership' => array(
        'student_id' => '2',
        'grade' => '2'
    )
)

)

---

从表单输入中删除Coursemembership ---使用此

    echo $this->Form->create('Coursemembership'); 
    echo $this->Form->input('Course.name');
    echo $this->Form->input('0.student_id');
    echo $this->Form->input('0.grade');

    echo $this->Form->input('1.student_id');
    echo $this->Form->input('1.grade');
    echo $this->Form->end('save');

---

Got it! I used the Course controller as recommended, with the following Course/add view and it now works. Thanks

    echo $this->Form->input('Course.name');
    echo $this->Form->input('Coursemembership.0.student_id');
    echo $this->Form->input('Coursemembership.0.grade');
    echo $this->Form->input('Coursemembership.1.student_id');
    echo $this->Form->input('Coursemembership.1.grade');

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