I made this component/helper a while ago for a site i was building and i thought i would share it with you. It’s a very simple and straight forward way to add breadcrumbs to your site with minimal mess or fuss.
Component Code (app/controllers/components/breadcrumb.php):
< ?php /* Copyright (c) 2009 Matthew Nessworthy - http://www.devmatt.co.za/ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ class BreadcrumbComponent extends Object { var $controller; var $breadcrumbs; //called before Controller::beforeFilter() function initialize(&$controller, $settings = array()) { // saving the controller reference for later use $this->controller =& $controller; } //called after Controller::beforeRender() function beforeRender(&$controller) { $this->controller->set('__breadcrumbs', $this->breadcrumbs); } function add() { $args = func_get_args(); if(!$args) { $args = array( array( $this->controller->name, $this->controller->here ) ); } foreach($args AS $breadcrumb) { $this->breadcrumbs[] = $breadcrumb; } } function reset() { $this->breadcrumbs = array(); } } ?>
Helper Code (app/views/helpers/breadcrumb.php):
<?php /* Copyright (c) 2009 Matthew Nessworthy - http://www.devmatt.co.za/ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ class BreadcrumbHelper extends AppHelper { var $helpers = array( 'Html' ); var $breadcrumbs; function beforeRender() { $view =& ClassRegistry::getObject('view'); if ($view && isset($view->viewVars['__breadcrumbs'])) { $this->breadcrumbs = $view->viewVars['__breadcrumbs']; } } function generate() { return $this->output($this->build_nav($this->breadcrumbs)); } function build_nav($breadcrumbs, $level=0) { $i = 0; $count = count($breadcrumbs); $out = ''
; foreach($breadcrumbs AS $breadcrumb) { $i++; $breadcrumb[1] = (isset($breadcrumb[1]) && $breadcrumb[1]) ? $breadcrumb[1] : '#'; $breadcrumb[2] = (isset($breadcrumb[2]) && $breadcrumb[2]) ? $breadcrumb[2] : null; $breadcrumb[3] = (isset($breadcrumb[3]) && $breadcrumb[3]) ? $breadcrumb[3] : null; $out .= '' ; $out .= $this->Html->link($breadcrumb[0], $breadcrumb[1], $breadcrumb[2]); if(isset($breadcrumb[3]) && is_array($breadcrumb[3]) && $breadcrumb[3]) { $out .= $this->build_nav($breadcrumb[3], $level+1); } $out .= ' '; } $out .= ' '; return $out; } } ?>
Setup:
Usage (Controller Code):
$this->Breadcrumb->add( array( 'Home', //title array('controller' => 'pages', 'action' => 'home') //link - array based ), array( 'Posts', '/posts/index' //link - string based, //dropdown links array( array( 'Latest', '/posts/latest' ) ) ) ); OR $this->Breadcrumb->add( array( 'Home', array('controller' => 'pages', 'action' => 'home') ) ); $this->Breadcrumb->add( array( 'Posts', '/posts/index', array( array( 'Latest', '/posts/latest' ) ) ) );
Usage (View Code):
<div id="breadcrumbs"> < ?php echo $breadcrumb->generate(); ?> div>
The output generated will look a lot like this:
My preferred menu is the excellent Superfish JS/CSS menu package