<?php session_start(); ?>
<html>
<head>
</head>
<body>
<?php
include ("../settings.php");
include ("../language/$cfg_language");
include ("../classes/db_functions.php");
include ("../classes/security_functions.php");
//creates 3 objects needed for this script.
$lang=new language();
$dbf=new db_functions($cfg_server,$cfg_username,$cfg_password,$cfg_database,$cfg_tableprefix,$cfg_theme,$lang);
$sec=new security_functions($dbf,'Admin',$lang);
//checks if user is logged in.
if(!$sec->isLoggedIn())
{
header ("location: ../login.php");
exit ();
}
//variables needed globably in this file.
$tablename="$cfg_tableprefix".'sales_items';
$field_names=null;
$field_data=null;
$id=-1;
if(isset($_POST['quantity_purchased']) and isset($_POST['item_unit_price']) and isset($_POST['item_tax_percent']) and isset($_POST['item_id']) and isset($_POST['sale_id']) and isset($_POST['row_id']) and isset($_POST['old_quantity']))
{
if(!is_numeric($_POST['quantity_purchased']) or !is_numeric($_POST['item_unit_price']) or !is_numeric($_POST['item_tax_percent']))
{
echo 'You must enter a numeric value for quantity purchased, Unit Price, and Tax.';
exit();
}
$item_id = $_POST['item_id'];
$sale_id = $_POST['sale_id'];
$row_id = $_POST['row_id'];
$old_quantity= $_POST['old_quantity'];
//gets variables entered by user.
$quantity_purchased = $_POST['quantity_purchased'];
$item_unit_price = $_POST['item_unit_price'];
$item_tax_percent = $_POST['item_tax_percent'];
$item_total_tax=($item_unit_price*$quantity_purchased)*($item_tax_percent/100);
$item_total_cost=($item_unit_price*$quantity_purchased)+$item_total_tax;
$item_unit_price=number_format($item_unit_price,2,'.', '');
$item_total_tax=number_format($item_total_tax,2,'.', '');
$item_total_cost=number_format($item_total_cost,2,'.', '');
$changeInQuantity=$old_quantity-$quantity_purchased;
$currentQuantity=$dbf->idToField($cfg_tableprefix.'items','quantity',$item_id);
$newQuantity=$currentQuantity+$changeInQuantity;
//insure all fields are filled in.
if($quantity_purchased=='' or $item_unit_price=='' or $item_tax_percent=='')
{
echo "$lang->forgottenFields";
exit();
}
}
else
{
//outputs error message because user did not use form to fill out data.
echo "$lang->mustUseForm";
exit();
}
$field_names=array('quantity_purchased','item_unit_price','item_tax_percent','item_total_tax','item_total_cost');
$field_data=array("$quantity_purchased","$item_unit_price","$item_tax_percent","$item_total_tax","$item_total_cost");
$dbf->update($field_names,$field_data,$tablename,$row_id,true);
$dbf->updateItemQuantity($item_id,$newQuantity);
$dbf->updateSaleTotals($sale_id);
$dbf->closeDBlink();
?>
<br>
<a href="manage_sales.php"><?php echo $lang->manageSales ?>--></a>
<br>
<a href="sale_ui.php"><?php echo $lang->startSale ?>--></a>
</body>
</html>