Plugin - Category Tag Cloud

[Eric Barnes]

v4 Plugin - Category Tag Cloud

This smarty plugin will create a tag cloud of your categories.

Requirements

Minimum version 4.0.0

Instructions

Save the code below as function.categories_cloud.php and place it in the includes/classes/smarty/plugins/ folder.

After you have saved the file you can use this code in the template file:

{categories_cloud}

You will also need to add another style to your css file. Something like this:

#tagcloud { margin: 0 0 20px; }
#tagcloud a { margin: 0 5px 0 0; color: #25771F; }
#tagcloud a:hover { background: #E7FEE5; color: #007898; }

Parameters

Below is a list of parameters you can use when calling this plugin. Please note these are optional.

min(integer)

The minimum size for the category with the least listings.

max(integer)

The maximum size for the category with the most listings.

pixel(string)

What size you want. Default is "em". Could be % or px.

Download

PHP Code:

<?php
function smarty_function_categories_cloud($params, &$smarty)
{
    global $db,$arr_childs, $Categories;
    
    $min = '.9';
    $max = '5';
    $pixel = 'em';
    $output = '<div id="tagcloud">'. "\n";
    
    foreach ($params as $_key=>$_value) 
    {
        switch ($_key) 
        {
            case 'max':
            case 'min':
            case 'pixel':
                $$_key = $_value;
                break;
        }
    }
    
    // First get the total//
    $sSQL="SELECT COUNT(*) AS total FROM ".PREFIX."listings WHERE expiration > NOW() AND display = 'Y'";
    $result=$db->query($sSQL);
    $rs=$result->fetch();
    $total_listings=$rs['total'];
    
    //now loop the categories and get the percentage. 
     $sSQL = "SELECT id,parent_id,name,slug,allowads,cLink FROM ".PREFIX."categories WHERE display<>'N' ORDER BY cORDER DESC, name ASC";
    $result=$db->query($sSQL);
    if($result->size() > 0)
     {
        $i=0;
        while ($rs=$result->fetch())
        {
            $name=safeStripSlashes($rs['name']);
            $name=htmlspecialchars($name);
            //add url for category link
            if($rs['cLink']<>"")
            {
                $start_link='<a href="'.$rs['cLink'].'">';
            }
            else
            {
                $slug = ( empty($rs['slug']) ) ? $rs['id']: $rs['slug'];
                $start_link='<a href="category.php?cat='.$slug.'">';
            }
            
            $sSQL2="SELECT COUNT(*) AS size FROM ".PREFIX."listings WHERE section = ". $rs['id'] ." AND expiration > NOW() AND (display='Y' OR display='S')";
            $result2=$db->query($sSQL2);
            $row = $result2->fetch();
            $cat_total=$row['size'];
            $size = $cat_total / $total_listings;
            $size = $size * $max;
            if($size < $min)
            {
                $size = $min;
            }
            if($size > $max)
            {
                $size = $max;
            }
            //output
            $output.='<span style="font-size: '.$size . $pixel.'">'.$start_link . $name .'</a></span>'. "\n";
        }
        $result->freeResult($result);
        $output .= '</div>'. "\n";
        return $output;
     }
     else
     {
         return false;
     }
}
?>

[Maffo]

Call me an idiot but what is a tag cloud?

[Eric Barnes]

Here is an example of one: http://ajaxrain.com/tagcloud.php

I have seen them on lots of blogs and such. So I thought it would be something someone might want.

[Maffo]

Thanks Eric, yet another geek name to add to my vocabulary

[CHRD]

this tag cloud is listing all 420 of my cats

[Eric Barnes]

You can just add a limit to the query:

FROM ".PREFIX."categories WHERE display<>'N' ORDER BY cORDER DESC, name ASC LIMIT 20";

[gppromano]

I use version 3.1.5 how can I make it compatible?

Thanks

[manchag]

Hello everyone,
i'm having some problems installing this script. I followed all the steps, however all the tags look the same size:
Enlistalo - Anuncios Clasificados en tu Localidad

I was also wondering if it's possible to customize this script and display cities instead of categories?


Manuel

[seymourjames]

Try this - it adds a twist to the category cloud. It sets a random number of categories to put in the cloud, puts them in a random order to display and randomises the font size. At the least the answer is there to set your font sizes appropriately. Your problem is probably to do with the fact that you are not differentiating the categories enough based on their number of entries to vary the font sizes (trial and error to resolve that) or there simply is not enough variation in the number of listings in them.

Classifieds Scripts

You can see an example of a category cloud here at the bottom of the page where I force an empty search. You will also note that I fill the page with random listings which is a function that is also given in the downloads folder that I offer.

French Property - properties - homes - houses

Good luck