edit two models data in a single view

so I have two models, family and students, each family could have several students. I want to use one view (edit view for family) for both family and students editing. 

<!-- File: /app/View/Families/edit.ctp -->

<h1>Edit family</h1>

<?php echo $this->Form->create('Family'); ?>

<table>

<?php echo $this->Form->input('id', array('type'=>'hidden'));  ?>

<tr> <td> <?php echo $this->Form->input('father'); ?> </td>

     <td> <?php echo $this->Form->input('mother'); ?> </td> </tr>

<tr> <td> <?php echo $this->Form->input('address'); ?> </td>

       <td> <?php echo $this->Form->input('zip'); ?> </td> </tr>

<tr> <td> <?php echo $this->Form->input('phone'); ?> </td>

     <td> <?php echo $this->Form->input('email');  ?> </td> </tr>

<?php foreach ($students as $student): ?>

<tr> <td> <?php echo $this->Form->input('Student.Name'); ?> </td>

     <td> <?php echo $this->Form->input($student['Student']['Birthday']); ?> </td>

   </tr>

          <?php endforeach;?>

<?php echo $this->Form->end('Save Post'); ?>

I can see the current value for family model in the form but, it does not show the current student info in the form.  

"CakePHP will assume that you are editing a model if the 'id' field is present in the

data array. If no 'id' is present (look back at our add view), CakePHP will assume that you are inserting a

new model when save() is called."

So I guess I am missing this portion "id" field for the second model "student".  but the "student" table has a "family_id" referencing back to the "id" field of "family' table

So how I can fix this?

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