pos/is4c-nf/lib/Scanning/PriceMethods/SplitABGroupPM.php
<?php
/*******************************************************************************
Copyright 2010 Whole Foods Co-op
This file is part of IT CORE.
IT CORE is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
IT CORE is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
in the file license.txt along with IT CORE; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*********************************************************************************/
namespace COREPOS\pos\lib\Scanning\PriceMethods;
use COREPOS\pos\lib\Scanning\PriceMethod;
use COREPOS\pos\lib\Database;
use COREPOS\pos\lib\MiscLib;
use COREPOS\pos\lib\TransRecord;
/**
@class SplitABGroupPM
The same as ABGroupPM, but the discount gets
split across two departments
Splitting doesn't work with member/staff
sales (discount will still apply, just
not divided)
This is pricemethod 3 in earlier WFC releases
and may not exist anywhere else.
*/
class SplitABGroupPM extends PriceMethod {
public function addItem(array $row, $quantity, $priceObj)
{
if ($quantity == 0) return false;
$pricing = $priceObj->priceInfo($row,$quantity);
$department = $row['department'];
// enforce limit on discounting sale items
$dsi = $this->session->get('DiscountableSaleItems');
if ($dsi == 0 && $dsi !== '' && $priceObj->isSale()) {
$row['discount'] = 0;
}
$mixMatch = $row['mixmatchcode'];
/* group definition: number of items
that make up a group, price for a
full set. Use "special" rows if the
item is on sale */
$groupQty = $row['quantity'];
$groupPrice = $row['groupprice'];
if ($priceObj->isSale()){
$groupQty = $row['specialquantity'];
$groupPrice = $row['specialgroupprice'];
}
/* not straight-up interchangable
* ex: buy item A, get $1 off item B
* need strict pairs AB
*
* type 3 tries to split the discount amount
* across A & B's departments; type 4
* does not
*/
$qualMM = abs($mixMatch);
$discMM = -1*abs($mixMatch);
$dbt = Database::tDataConnect();
// lookup existing qualifiers (i.e., item As)
// by-weight items are rounded down here
$qualQ = "SELECT floor(sum(ItemQtty)),max(department)
FROM localtemptrans WHERE mixMatch='$qualMM'
and trans_status <> 'R'";
$qualR = $dbt->query($qualQ);
$quals = 0;
$dept1 = 0;
if($dbt->num_rows($qualR)>0){
$rowq = $dbt->fetch_row($qualR);
$quals = round($rowq[0]);
$dept1 = $rowq[1];
}
// lookup existing discounters (i.e., item Bs)
// by-weight items are counted per-line here
//
// extra checks to make sure the maximum
// discount on scale items is "free"
$discQ = "SELECT sum(CASE WHEN scale=0 THEN ItemQtty ELSE 1 END),
max(department),max(scale),max(total) FROM localtemptrans
WHERE mixMatch='$discMM'
and trans_status <> 'R'";
$discR = $dbt->query($discQ);
$dept2 = 0;
$discs = 0;
$discountIsScale = false;
$scaleDiscMax = 0;
if($dbt->num_rows($discR)>0){
$rowd = $dbt->fetch_row($discR);
$discs = round($rowd[0]);
$dept2 = $rowd[1];
if ($rowd[2]==1) $discountIsScale = true;
$scaleDiscMax = $rowd[3];
}
if ($quantity != (int)$quantity && $mixMatch < 0){
$discountIsScale = true;
$scaleDiscMax = $quantity * $pricing['unitPrice'];
}
// items that have already been used in an AB set
$matchQ = "SELECT sum(matched) FROM localtemptrans WHERE
mixmatch IN ('$qualMM','$discMM')";
$matchR = $dbt->query($matchQ);
$matches = 0;
if ($matchR && $dbt->num_rows($matchR) > 0) {
$matchW = $dbt->fetch_row($matchR);
$matches = $matchW[0];
}
// reduce totals by existing matches
// implicit: quantity required for B = 1
// i.e., buy X item A save on 1 item B
$matches = $matches/$groupQty;
$quals -= $matches*($groupQty-1);
$discs -= $matches;
// where does the currently scanned item go?
if ($mixMatch > 0) {
$quals = ($quals >0)?$quals+floor($quantity):floor($quantity);
$dept1 = $department;
} else {
// again, scaled items count once per line
$discs = ($discs >0)?$discs+$quantity:$quantity;
if ($quantity != (int)$quantity) {
$discs = ($discs >0)?$discs+1:1;
}
$dept2 = $department;
}
// count up complete sets
$sets = 0;
while($discs > 0 && $quals >= ($groupQty-1) ){
$discs -= 1;
$quals -= ($groupQty -1);
$sets++;
}
if ($sets > 0){
$maxDiscount = $sets*$groupPrice;
if ($scaleDiscMax != 0 && $maxDiscount > $scaleDiscMax)
$maxDiscount = $scaleDiscMax;
// if the current item is by-weight, quantity
// decrement has to be corrected, but matches
// should still be an integer
$ttlMatches = $sets;
if($quantity != (int)$quantity) $sets = $quantity;
$quantity = $quantity - $sets;
TransRecord::addRecord(array(
'upc' => $row['upc'],
'description' => $row['description'],
'trans_type' => 'I',
'trans_subtype' => (isset($row['trans_subtype'])) ? $row['trans_subtype'] : '',
'department' => $row['department'],
'quantity' => $sets,
'unitPrice' => $pricing['unitPrice'],
'total' => MiscLib::truncate2($sets*$pricing['unitPrice']),
'regPrice' => $pricing['regPrice'],
'scale' => $row['scale'],
'tax' => $row['tax'],
'foodstamp' => $row['foodstamp'],
'memDiscount' => ($priceObj->isMemberSale() || $priceObj->isStaffSale()) ? MiscLib::truncate2($maxDiscount) : 0,
'discountable' => $row['discount'],
'discounttype' => $row['discounttype'],
'ItemQtty' => $sets,
'volDiscType' => ($priceObj->isSale() ? $row['specialpricemethod'] : $row['pricemethod']),
'volume' => ($priceObj->isSale() ? $row['specialquantity'] : $row['quantity']),
'VolSpecial' => ($priceObj->isSale() ? $row['specialgroupprice'] : $row['groupprice']),
'mixMatch' => $row['mixmatchcode'],
'matched' => $ttlMatches * $groupQty,
'cost' => (isset($row['cost']) ? $row['cost']*$sets*$groupQty : 0.00),
'numflag' => (isset($row['numflag']) ? $row['numflag'] : 0),
'charflag' => (isset($row['charflag']) ? $row['charflag'] : '')
));
if (!$priceObj->isMemberSale() && !$priceObj->isStaffSale()){
TransRecord::additemdiscount($dept1,MiscLib::truncate2($maxDiscount/2.0));
TransRecord::additemdiscount($dept2,MiscLib::truncate2($maxDiscount/2.0));
}
}
/* any remaining quantity added without
grouping discount */
if ($quantity > 0){
TransRecord::addRecord(array(
'upc' => $row['upc'],
'description' => $row['description'],
'trans_type' => 'I',
'trans_subtype' => (isset($row['trans_subtype'])) ? $row['trans_subtype'] : '',
'department' => $row['department'],
'quantity' => $quantity,
'unitPrice' => $pricing['unitPrice'],
'total' => MiscLib::truncate2($pricing['unitPrice'] * $quantity),
'regPrice' => $pricing['regPrice'],
'scale' => $row['scale'],
'tax' => $row['tax'],
'foodstamp' => $row['foodstamp'],
'discountable' => $row['discount'],
'discounttype' => $row['discounttype'],
'ItemQtty' => $quantity,
'volDiscType' => ($priceObj->isSale() ? $row['specialpricemethod'] : $row['pricemethod']),
'volume' => ($priceObj->isSale() ? $row['specialquantity'] : $row['quantity']),
'VolSpecial' => ($priceObj->isSale() ? $row['specialgroupprice'] : $row['groupprice']),
'mixMatch' => $row['mixmatchcode'],
'cost' => (isset($row['cost'])?$row['cost']*$quantity:0.00),
'numflag' => (isset($row['numflag'])?$row['numflag']:0),
'charflag' => (isset($row['charflag'])?$row['charflag']:'')
));
}
return True;
}
}