Display subcategories on Category page

[boccio]

Here is a little hack to display subcategories in main category view. If you have a lot of subcategories, you probably won't display them in main navigation to keep the nav clear, so this can come very useful.

1. category_Main.tpl
Place the {SHOW_SUBCATEGORIES} tag somewhere inside the template, where you want subcategories shown. Preferebly at the top of the file, above or below the {CATEGORY_NAME} tag. Format the output at will.

<tr>
     <td colspan="2"><br />{SHOW_SUBCATEGORIES}</td>
</tr>

2. index.php:
Place the call to function that parses the new tag in template. Preferably somewhere around line 286:

$show_subcategories_HTML = HTML_show_subcategories($cid);

Also, around line 792, (at the bottom of the section after ''/{SITEMAP_LINK}/'') place this line:

'/{SHOW_SUBCATEGORIES}/',

and after line 836 (exactly after $sitemap_link,):

$show_subcategories_HTML,

3. HTML_function.php:
After line 161 (approx.) place the function to manage the display:

function HTML_show_subcategories($cid, $prf='')
{
            global $url, $tpl_folder,$lang, $connection, $category;

            $query = "SELECT id FROM tblCategories WHERE parent_cat=$cid ORDER BY order_num";
            $result2 = mysql_query($query) or sql_error ($query, "show_subcategories");

            $sub_category_menu = "";

            while($row2=mysql_fetch_array($result2))
            {
                        $sub_category = new Category();
                   $sub_category->LoadFromDatebase($connection,$row2['id']);
                        $sub_category_menu.= "<div class=\"category_link_depth2\"><a href=\"".HTML_show_friendly_cat($sub_category->Id)."\">";
                        $sub_category_menu.= $prf.$sub_category->Category_name."</a></div>";
                        $cid = $sub_category->Id;
                        $sub_category_menu.= HTML_show_subcategories($cid, $prf.'- ');
            }

            return $sub_category_menu;
}

[Frankc2]

Is this instructions current?

I can't find the appropriate lines or places in index.php.

Also, around line 792, (at the bottom of the section after ''/{SITEMAP_LINK}/'') place this line:

[Alex]

This refers to version 3.1, we need to update these hacks for release 3.2... Probably all the things are more or less the same, only line numbers in scripts differ.

[Frankc2]

Thank you

Would appreciate it if you can let me know once done because I tried over and over again but am unable to accomplanish this.

[Frankc]

Any further developments in this regard please?

[Alex]

This is the 3.2 version of this mod:

1. category_Main.tpl
Place the {SHOW_SUBCATEGORIES} tag somewhere inside the template, where you want the subcategories to show. Preferably at the top of the file, somewhere around the {CATEGORY_NAME} tag. Example:

<tr>
     <td colspan="2"><br />{SHOW_SUBCATEGORIES}</td>
</tr>

2. index.php
Place the call to the function that parses the new tag in template, at line 260:

PHP Code:

$show_subcategories_HTML = HTML_show_subcategories($cid); 


3. template_scripts/default.php
Right after the line 33, insert the following snippet:

PHP Code:

$template_manager->assign($show_subcategories_HTML,'/{SHOW_SUBCATEGORIES}/'); 


4. HTML_function.php
After line 205 place this function to manage the display of subs:

PHP Code:

function HTML_show_subcategories($cid, $prf='') 
{ 
            global $url, $tpl_folder,$lang, $connection, $category; 

            $query = "SELECT id FROM tblCategories WHERE parent_cat=$cid ORDER BY order_num"; 
            $result2 = mysql_query($query) or sql_error ($query, "show_subcategories"); 

            $sub_category_menu = ""; 

            while($row2=mysql_fetch_array($result2)) 
            { 
                        $sub_category = new Category(); 
                   $sub_category->LoadFromDatebase($connection,$row2['id']); 
                        $sub_category_menu.= "<div class=\"category_link_depth2\"><a href=\"".HTML_show_friendly_cat($sub_category->Id)."\">"; 
                        $sub_category_menu.= $prf.$sub_category->Category_name."</a></div>"; 
                        $cid = $sub_category->Id; 
                        $sub_category_menu.= HTML_show_subcategories($cid, $prf.'- '); 
            } 

            return $sub_category_menu; 
} 


[Elton]

Is there an example of this working to view online?

[boccio]

We don't have one. Suppose someone who applied this mod can show live example?