Make database calls inside of component

[bigdog]

Is there a way to access the Model, to make Database calls inside of a
component?

class CostsController extends AppController
{
    var $name = 'Costs';
    var $components=array("Findcost");


   function index()
   {
    //Do i send a reference to model this way?
        $this->Component->calculate( ???);
   }
}

class FindcostComponent
{
   var $model;
   var $myarray = array();

    //Or is there a way to retrieve the model reference here
     //like you do
    // with the startup function
    //to access the controller?

   function calculate(  ???  )
   {
       //do some calculations
      $this->myarray[$itemcost]=100;
       //I want to save to table here
       $this->model->save($this->myarr);
}

Thanks for your help,

Bill


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