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Showing Multiple Categories At Once

Thread began 10/29/2009 5:34 pm by larsentim278054 | Last modified 11/13/2009 5:24 pm by larsentim278054 | 4134 views | 30 replies


The problem with that is, as you say, it's quite complex and I don't know SQL as well as I should. I have no idea how to "modify" it to show only certain categories - my goal is to show a page that includes only categories that I choose. I was able to do this - but as you saw - it shows every product instead of just the first one.

Here's the sql from the regular (default) product_results page:

$maxRows_WADAProducts = 9;
$pageNum_WADAProducts = 0;
if (isset($_GET['pageNum_WADAProducts'])) {
$pageNum_WADAProducts = $_GET['pageNum_WADAProducts'];
$startRow_WADAProducts = $pageNum_WADAProducts * $maxRows_WADAProducts;

mysql_select_db($database_localhost, $localhost);
$query_WADAProducts = "SELECT *, (ProductStock - (SELECT Coalesce(Sum(DetailQuantity),0) FROM orderdetails INNER JOIN orders ON OrderID = DetailOrderID WHERE DetailProductID = ProductID AND OrderDate > ProductUpdateDate)) AS NumLeft, (SELECT MAX(ProductPrice) FROM products as prod2 INNER JOIN productoptions ON productoptions.ProductID = prod2.ProductID WHERE productoptions.GroupingID = products.ProductID AND prod2.ProductLive <> 0) AS TopPrice, (SELECT MIN(ProductPrice) FROM products as prod2 INNER JOIN productoptions ON productoptions.ProductID = prod2.ProductID WHERE productoptions.GroupingID = products.ProductID AND prod2.ProductLive <> 0) AS BottomPrice FROM products LEFT OUTER JOIN productcategories ON ProductCategoryID = CategoryID WHERE ProductLive <> 0 AND COALESCE((SELECT GroupingID FROM productoptions WHERE productoptions.ProductID = products.ProductID LIMIT 1), ProductID) = ProductID";
$query_WADAProducts.= preg_replace("/ AND /", " HAVING ", $WADbSearch2->whereClause, 1);
$query_limit_WADAProducts = sprintf("%s LIMIT %d, %d", $query_WADAProducts, $startRow_WADAProducts, $maxRows_WADAProducts);
$WADAProducts = mysql_query($query_limit_WADAProducts, $localhost) or die(mysql_error());
$row_WADAProducts = mysql_fetch_assoc($WADAProducts);

if (isset($_GET['totalRows_WADAProducts'])) {
$totalRows_WADAProducts = $_GET['totalRows_WADAProducts'];
} else {
$all_WADAProducts = mysql_query($query_WADAProducts);
$totalRows_WADAProducts = mysql_num_rows($all_WADAProducts);
$totalPages_WADAProducts = ceil($totalRows_WADAProducts/$maxRows_WADAProducts)-1;

And here's the SQL from the new page I made that only shows categories 1,2 and 3:

if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;

$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
case "double":
$theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
return $theValue;

$maxRows_carseats = 6;
$pageNum_carseats = 0;
if (isset($_GET['pageNum_carseats'])) {
$pageNum_carseats = $_GET['pageNum_carseats'];
$startRow_carseats = $pageNum_carseats * $maxRows_carseats;

mysql_select_db($database_localhost, $localhost);
$query_carseats = "SELECT * FROM products WHERE ProductCategoryID = 1 OR ProductCategoryID = 2 OR ProductCategoryID = 3";
$query_limit_carseats = sprintf("%s LIMIT %d, %d", $query_carseats, $startRow_carseats, $maxRows_carseats);
$carseats = mysql_query($query_limit_carseats, $localhost) or die(mysql_error());
$row_carseats = mysql_fetch_assoc($carseats);

if (isset($_GET['totalRows_carseats'])) {
$totalRows_carseats = $_GET['totalRows_carseats'];
} else {
$all_carseats = mysql_query($query_carseats);
$totalRows_carseats = mysql_num_rows($all_carseats);
$totalPages_carseats = ceil($totalRows_carseats/$maxRows_carseats)-1;


Much smaller. Please let me know how to modify either one. Whichever one is easiest.

I really appreciate your help - I know this isn't the normal scope of things, but I gather (and have heard from others) that this is a wanted option (to show multiple categories on a results page).


Edit: I realize that first code I put up there is very hard to read because one line is extremely long (and unfortunately, that one line is the one that tells it to limit the one product) - but I don't know how to make it more readable. To read it, you need to scroll all the way to the right. Otherwise you won't see the most important part.

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