Move invoice config items into the DB

modules/invoice/classes/model/invoice.php

@@ -370,18 +370,13 @@ class Model_Invoice extends ORMOSB {
 	}
 
 	public function min_due($date) {
-		// @todo This should be a DB confirm item
-		return ($date < time()) ? time()+Kohana::config('config.invoice.min_due_days')*86400 : $date;
+		return ($date < time()) ? time()+ORM::factory('invoice')->config('DUE_DAYS_MIN')*86400 : $date;
 	}
 
 	public function save(Validation $validation = NULL) {
 		// Our items will be clobbered once we save the object, so we need to save it here.
 		$items = $this->items();
 
-		// @todo This is added here so we can do payments
-		$this->total_amt = $this->total();
-		$this->billed_amt = 0;
-
 		// Save the invoice
 		parent::save($validation);