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khosb/modules/invoice/classes/invoice.php
2011-05-03 09:49:04 +10:00

93 lines
2.3 KiB
PHP

<?php defined('SYSPATH') or die('No direct access allowed.');
/**
* This class provides invoice information
*
* @package OSB
* @subpackage Invoice
* @category Helpers
* @author Deon George
* @copyright (c) 2010 Deon George
* @license http://dev.leenooks.net/license.html
*/
class Invoice {
public static function instance() {
return new Invoice;
}
/**
* Return a list of invoices for an invoice
*
* @param $id int Service ID
* @param $paid boolean Optionally only list the ones that are not paid.
* @return array
*/
public static function servicelist($id,$paid=TRUE) {
// @todo need to add the db prefix
$invoices = DB::Query(Database::SELECT,'
SELECT i.id AS iid,i.due_date AS due FROM ab_invoice i,ab_invoice_item ii WHERE ii.invoice_id=i.id AND service_id=:id GROUP BY i.id
')
->param(':id',$id)
->execute();
$service_invoices = array();
foreach ($invoices as $item) {
if ($bal = Invoice::balance($item['iid']) OR $paid) {
$service_invoices[$item['iid']]['id'] = $item['iid'];
$service_invoices[$item['iid']]['total'] = $bal;
$service_invoices[$item['iid']]['due'] = $item['due'];
}
}
return $service_invoices;
}
/**
* Return the total of amount outstanding for a service
*
* @param $id int Service ID
* @param $paid boolean Optionally only list the ones that are not paid.
* @return real Total amount outstanding
* @see Invoice::listservice()
*/
public static function servicetotal($id,$paid=TRUE) {
$total = 0;
foreach (Invoice::servicelist($id,$paid) as $item)
$total += $item['total'];
return $total;
}
/**
* Return the earliest due date of an outstanding invoice
*
* @param $id int Service ID
* @return datetime
*/
public static function servicedue($id) {
$due = 0;
foreach (Invoice::servicelist($id,FALSE) as $item)
if ($due < $item['due'])
$due = $item['due'];
return $due;
}
public static function balance($id) {
$invoice = ORM::factory('invoice')
->where('id','=',$id)
->find();
// @todo We should call check() here to re-run the validation, which re-calcs the total
// @todo might need to cache these results for performance
#if ($invoice->loaded() AND $invoice->check())
if ($invoice->loaded())
return $invoice->total_amt-$invoice->billed_amt-$invoice->credit_amt;
else
return 0;
}
}
?>