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functions.php
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functions.php
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<?php
require("dbconnection.php");
session_start();
function getNumRowsQuery($query) {
global $sqlconnection;
if ($result = $sqlconnection->query($query))
return $result->num_rows;
else
echo "Something wrong the query!";
}
function getFetchAssocQuery($query) {
global $sqlconnection;
if ($result = $sqlconnection->query($query)) {
while ($row = $result->fetch_array(MYSQLI_ASSOC)) {
echo "\n", $row["itemID"], $row["menuID"], $row["menuItemName"], $row["price"];
}
return ($result);
}
else
echo "Something wrong the query!";
echo $sqlconnection->error;
}
function getLastID($id,$table) {
global $sqlconnection;
$query = "SELECT MAX({$id}) AS {$id} from {$table} ";
if ($result = $sqlconnection->query($query)) {
$res = $result->fetch_array();
if ($res[$id] == NULL)
return 0;
return $res[$id];
}
else {
echo $sqlconnection->error;
return null;
}
}
function getCountID($idnum,$id,$table) {
global $sqlconnection;
$query = "SELECT COUNT({$id}) AS {$id} from {$table} WHERE {$id}={$idnum}";
if ($result = $sqlconnection->query($query)) {
$res = $result->fetch_array();
if ($res[$id] == NULL)
return 0;
return $res[$id];
}
else {
echo $sqlconnection->error;
return null;
}
}
function getSalesTotal($orderID) {
global $sqlconnection;
$total = null;
$query = "SELECT total FROM tbl_order WHERE orderID = ".$orderID;
if ($result = $sqlconnection->query($query)) {
if ($res = $result->fetch_array()) {
$total = $res[0];
return $total;
}
return $total;
}
else {
echo $sqlconnection->error;
return null;
}
}
function getSalesGrandTotal($duration) {
global $sqlconnection;
$total = 0;
if ($duration == "ALLTIME") {
$query = "
SELECT SUM(total) as grandtotal
FROM tbl_order
";
}
else if ($duration == ("DAY" || "MONTH" || "WEEK")) {
$query = "
SELECT SUM(total) as grandtotal
FROM tbl_order
WHERE order_date > DATE_SUB(NOW(), INTERVAL 1 ".$duration.")
";
}
else
return null;
if ($result = $sqlconnection->query($query)) {
while ($res = $result->fetch_array(MYSQLI_ASSOC)) {
$total+=$res['grandtotal'];
}
return $total;
}
else {
echo $sqlconnection->error;
return null;
}
}
function updateTotal($orderID) {
global $sqlconnection;
$query = "
UPDATE tbl_order o
INNER JOIN (
SELECT SUM(OD.quantity*mi.price) AS total
FROM tbl_order O
LEFT JOIN tbl_orderdetail OD
ON O.orderID = OD.orderID
LEFT JOIN tbl_menuitem MI
ON OD.itemID = MI.itemID
LEFT JOIN tbl_menu M
ON MI.menuID = M.menuID
WHERE o.orderID = ".$orderID."
) x
SET o.total = x.total
WHERE o.orderID = ".$orderID."
";
if ($sqlconnection->query($query) === TRUE) {
echo "updated.";
}
else {
echo "someting wong";
echo $sqlconnection->error;
}
}
?>