How to paginate with user-selected filter-options?

Hey,

I know how the paginator works and how I can define my conditions to
filter as I like, but I was wondering how to add some more usability
to this so let's say the user should set the filters "on the fly" with
some drop downs...

So I made some dropdowns with some options such as order => ASC/DESC,
limit => 5,10,20,50 and oderby => lastname/firstname/email...

That's really easy I think, so I created this as a form on top of the
index-table, and checked in my controller wether the form is sent or
not.

The options I selected with my dropdowns are set and when I see the
pagination after I hit "Sent!" the table is sorted as I selected it.

But now comes the problem:
After I hit "Page 2", my filters are overwritten by the default values
of my controller. So I think I'm doing something wrong, and I need a
simple example of how I can achieve the desired functionality.

Could please someone give me a hint how I can do it? When I hit the
page-change link, my selected values are overwritten beause the
RequestHandler does not kick in.

Here's my controller-code:

public function myProfs() {
$limit = 10;
$order = 'ASC';
$sortby = 'lastname';
if($this->RequestHandler->IsPost()) {
$limit = $this->data['Professor']['limit'];
$order = $this->data['Professor']['order'];
$sortby = $this->data['Professor']['sortby'];
}
$this->paginate['Professor'] = array(
'contain' => false,
'conditions' => array(
'Professor.deleted' => 0,
'Professor.user_id' => $this->Auth->User('id')
),
'limit' => $limit,
'order' => array(
'Professor.'.$sortby => $order
)
);
$limits = $this->Professor->getItemCount();
$orders = $this->Professor->order();
$sortbies = $this->Professor->sortBy();
$professors = $this->paginate('Professor');
$this->set(compact('professors', 'limits', 'orders',
'sortbies'));
}

Regards,

DD

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