Remove product from Bread Crumb Trail

[magicpants]

How can one remove the product from the bread crumb trail, when viewing a product info page? I have long product names, so the bread crumb is wrapping -- plus the product name is displayed in the page title, right under the trail anyway.

I looked through classes/breadcrumb.php but couldn't work it through.

[clydejones]

I use this code

<!-- bof  breadcrumb -->
<?php if (DEFINE_BREADCRUMB_STATUS == '1' && ($current_page!='index' || (int)$cPath>0 )) { ?>    <div id="navBreadCrumb"><?php echo $breadcrumb->trail(BREAD_CRUMBS_SEPARATOR); ?></div>
<?php } ?>
<!-- eof breadcrumb -->

tpl_main_page.php to keep the breadcrumb from showing on my main page.

I suppose you could modify it to include the product info page.

[magicpants]

Actually I want to just remove the product from the breadcrumb on all pages.

Changing:
Home :: Stereos :: Philips :: Philips TG125 Portable Radio

To just:
Home :: Stereos :: Philips

The TG125 being a product, not a category. But thanks clydejones for your code to remove the crumbs from the main page -- I hadn't thought about that but it's much more clean. :)

Anybody know how to remove the product so it only displays categories in the breadcrumb? I'm running 1.3.0.1. Thanks!

[aeolidia]

I would like to ideally truncate the breadcrumb after a certain number of characters. Anybody have a quick tip on how to do that? I think that might solve magicpants' problem as well.

[danielcor]

This will limit the breadcrumbs length.. It won't truncate exactly, so you will always get complete crumbs, but it will truncate so that as soon as the total length goes over $max_trail in the code below:

function trail($separator = '  ') {
$trail_string = '';

$trail_len = 0;
$max_trail = 20;

for ($i=0, $n=sizeof($this->_trail); $i<$n; $i++) {
// echo 'breadcrumb ' . $i . ' of ' . $n . ': ' . $this->_trail[$i]['title'] . '<br />';
$skip_link = false;
if ($i==($n-1) && DISABLE_BREADCRUMB_LINKS_ON_LAST_ITEM =='true')
{
$skip_link = true;
}

if (isset($this->_trail[$i]['link']) && zen_not_null($this->_trail[$i]['link']) && !$skip_link )
{
// this line simply sets the "Home" link to be the domain/url, not main_page=index?blahblah:
if ($this->_trail[$i]['title'] == HEADER_TITLE_CATALOG)
{
$trail_string .= ' <a href="' . HTTP_SERVER . DIR_WS_CATALOG . '">' . $this->_trail[$i]['title'] . '</a>';
}
else
{
$trail_string .= ' <a href="' . $this->_trail[$i]['link'] . '">' . $this->_trail[$i]['title'] . '</a>';
}
}
else
{
$trail_string .= $this->_trail[$i]['title'];
}

if (($i+1) < $n) $trail_string .= $separator;

$trail_string .= "\n";

$trail_len += strlen($this->_trail[$i]['title']) + strlen($separator);

if ($trail_len > $max_trail)
break;
}

return $trail_string;
}

Just replace the function trail with the code above, and adjust max_trail according to your desired length.

- Daniel

[danielcor]

By the way, that code is in breadcrumb.php. My next post will explain how to remove the product from the end of the breadcrumb!

[danielcor]

Magicpants is looking for this:

In init_add_crumbs.php, comment out the following code:

/**
* add the products model to the breadcrumb trail
*/
if (isset($_GET['products_id'])) {
$productname_query = "select products_name
from " . TABLE_PRODUCTS_DESCRIPTION . "
where products_id = '" . (int)$_GET['products_id'] . "'
and language_id = '" . $_SESSION['languages_id'] . "'";

$productname = $db->Execute($productname_query);

if ($productname->RecordCount() > 0) {
$breadcrumb->add($productname->fields['products_name'], zen_href_link(zen_get_info_page($_GET['products_id']), 'cPath=' . $cPath . '&products_id=' . $_GET['products_id']));
}
}

[magicpants]

Thanks Daniel! I never even noticed that init_add_crumbs file. Easier than I was expecting...

[clydejones]

Instead of messing with the Core Code you can do the same thing in your includes -> templates -> YOURTEMPLATE -> common -> tpl_main_page.php

use the following:

<!-- bof  breadcrumb -->
<?php if (DEFINE_BREADCRUMB_STATUS == '1' && ($current_page!='index' || (int)$cPath>0 )) { ?>    <div id="navBreadCrumb"><?php echo $breadcrumb->trail(BREAD_CRUMBS_SEPARATOR); ?></div>
<?php } ?>
<!-- eof breadcrumb -->

[clydejones]

Sorry about the above post- I thought I'd figured out a way to use this by changing the current page == product_info but that eliminates the entire breadcrumb on that page. - Not what you want.