Category Integration

googlit · September 23, 2012

Hi all,

Im hoping to get a little help or to be pointed in the right direction,

what im trying to do is make a DB led category system that will pull data from a table and publish. hopefully looking something like this:

-category1

-subcat1

-subcat2

-catrgory2

-subcat1

-subcat2

-category3

-category4

etc etc etc...

my table is set up as so:

Column Type NULL Default Comments

id int(11) No auto Increment - Primary Key

catName Varchar(255) No category Title

parentCat int(11) No 0 Parent category ID for Sub Categories

catDescrip varchar(255) YES NULL Text description of category

catOrder varchar(255) YES NULL List Order of Categories

isActive int(11) NO 1 Is Active = 1 Innactive = 0

my current page design for the category menu is this:

<div style="float: left" id="my_menu" class="sdmenu">
<div>
<span>Category 1</span>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
</div>
<div>
<span>Category 2</span>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
</div>
<div class="collapsed">
<span>Category 3</span>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
</div>
<div>
<span>Category 4</span>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
<a href="link1.php">link1</a>
</div>
</div>

any help would be appreciated as i am unsure on how to begin with this.

Jessica · September 23, 2012

If there is a limit to how deep the categories can go, you can simply join the table to itself a few times. Otherwise, write a recursive function to build the list after you select all of them.

googlit · September 23, 2012

Hmm, thanks for that, im trying a few things but not getting the correct result, however i am not very compliant with recursive functions..... ill keep trying.....

googlit · September 23, 2012

ok, so after a lot of reasearch i have found and compiled a script that does that i want, the problem now exists that i have no idea how to impliment it with my current javascript... the two files are below.........

The Function:

<?php
function hasChild($parent_id)
{
$sql = "SELECT COUNT(*) as count FROM categories WHERE parent_id = '" . $parent_id . "'";
$qry = mysql_query($sql);
$rs = mysql_fetch_array($qry);
return $rs['count'];
}

function CategoryTree($list,$parent,$append)
{
$list = '<li>'.$parent['name'].'</li>';

if (hasChild($parent['id'])) // check if the id has a child
{
 $append++;
 $list .= "<ul class='child child".$append."'>";
 $sql = "SELECT * FROM categories WHERE parent_id = '" . $parent['id'] . "'";
 $qry = mysql_query($sql);
 $child = mysql_fetch_array($qry);
 do{
 $list .= CategoryTree($list,$child,$append);
 }while($child = mysql_fetch_array($qry));
 $list .= "</ul>";
}
return $list;
}
function CategoryList()
{
$list = "";

$sql = "SELECT * FROM categories WHERE (parent_id = 0 OR parent_id IS NULL)";
$qry = mysql_query($sql);
$parent = mysql_fetch_array($qry);
$mainlist = "<ul class='parent'>";
do{
 $mainlist .= CategoryTree($list,$parent,$append = 0);
}while($parent = mysql_fetch_array($qry));
$list .= "</ul>";
return $mainlist;
}
?>

and the page code (styles etc)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<link rel="stylesheet" type="text/css" href="sdmenu/sdmenu.css" />
   <script type="text/javascript" src="sdmenu/sdmenu.js">

   </script>
   <script type="text/javascript">
   // <![CDATA[
   var myMenu;
   window.onload = function() {
       myMenu = new SDMenu("my_menu");
       myMenu.init();
   };
   // ]]>
   </script>
</head>

<body>
<!--Navbar test--------------------->


<div style="float: left" id="my_menu" class="sdmenu">
  <div>
    <span>one
       </span>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
  </div>
  <div>


    <span>two</span>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
  </div>
  <div class="collapsed">


    <span>three</span>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
  </div>
  <div>


    <span>four</span>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
    <a href="link1.php">link1</a>
  </div>
   </div>


</body>
</html>

Can anyone shed some light on this, i have always had issues with merging the two together and escaping etc....

Jessica · September 23, 2012

You posted in PHP, and haven't said anything about any javascript until just now.

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