WARNING: This project is no longer maintained. If you are using it with Symfony >= 4.3, you may want to use this fork instead.

Installation

1. Configure templating for your application if you haven't already. For example:

   # app/config/config.yml (Symfony <=3)
   framework:
       templating:
           engines: ['twig']
   
   # config/packages/framework.yaml (Symfony 4)
   templating:
       engines: ['twig']

2. Install this bundle using Composer:

   composer require whiteoctober/breadcrumbs-bundle

3. Add this bundle to your application's kernel:

   // app/AppKernel.php
   public function registerBundles()
   {
       $bundles = array(
           // ...
           new WhiteOctober\BreadcrumbsBundle\WhiteOctoberBreadcrumbsBundle(),
           // ...
       );
   }

   If you're using Symfony 4, this step will be done for you by Symfony Flex.

4. Configure the bundle in your config:

   # app/config/config.yml
   white_october_breadcrumbs: ~

That's it for basic configuration. For more options check the Configuration section.

Usage

In your application controller methods:

public function yourAction(User $user)
{
    $breadcrumbs = $this->get("white_october_breadcrumbs");
    
    // Simple example
    $breadcrumbs->addItem("Home", $this->get("router")->generate("index"));

    // Example without URL
    $breadcrumbs->addItem("Some text without link");

    // Example with parameter injected into translation "user.profile"
    $breadcrumbs->addItem($txt, $url, ["%user%" => $user->getName()]);
}

For Symfony 4, don't retrieve the service via get, instead use dependency injection:

use WhiteOctober\BreadcrumbsBundle\Model\Breadcrumbs;

class YourController extends AbstractController
{
    public function yourAction(Breadcrumbs $breadcrumbs)
    {
      // ...
    }
}

Then, in your template:

{{ wo_render_breadcrumbs() }}

The last item in the breadcrumbs collection will automatically be rendered as plain text rather than a <a>...</a> tag.

The addItem() method adds an item to the end of the breadcrumbs collection. You can use the prependItem() method to add an item to the beginning of the breadcrumbs collection. This is handy when used in conjunction with hierarchical data (e.g. Doctrine Nested-Set). This example uses categories in a product catalog:

public function yourAction(Category $category)
{
    $breadcrumbs = $this->get("white_october_breadcrumbs");

    $node = $category;

    while ($node) {
        $breadcrumbs->prependItem($node->getName(), "<category URL>");

        $node = $node->getParent();
    }
}

If you do not want to generate a URL manually, you can easily add breadcrumb items passing only the route name with any required parameters, using the addRouteItem() and prependRouteItem() methods:

public function yourAction()
{
    $breadcrumbs = $this->get("white_october_breadcrumbs");
    
    // Pass "_demo" route name without any parameters
    $breadcrumbs->addRouteItem("Demo", "_demo");

    // Pass "_demo_hello" route name with route parameters
    $breadcrumbs->addRouteItem("Hello Breadcrumbs", "_demo_hello", [
        'name' => 'Breadcrumbs',
    ]);

    // Add "homepage" route link at the start of the breadcrumbs
    $breadcrumbs->prependRouteItem("Home", "homepage");
}

Configuration

The following default parameters can be overriden in your config.yml or similar:

# app/config/config.yml
white_october_breadcrumbs:
    separator:          '/'
    separatorClass:     'separator'
    listId:             'wo-breadcrumbs'
    listClass:          'breadcrumb'
    itemClass:          ''
    linkRel:            ''
    locale:             ~ # defaults to null, so the default locale is used
    translation_domain: ~ # defaults to null, so the default domain is used
    viewTemplate:       'WhiteOctoberBreadcrumbsBundle::microdata.html.twig'

These can also be passed as parameters in the view when rendering the breadcrumbs - for example:

{{ wo_render_breadcrumbs({separator: '>', listId: 'breadcrumbs'}) }}

NOTE: If you need more than one set of breadcrumbs on the same page you can use namespaces. By default, breadcrumbs use the default namespace, but you can add more. To add breadcrumbs to your custom namespace use addNamespaceItem / prependNamespaceItem or addNamespaceRouteItem / prependNamespaceRouteItem methods respectively, for example:

public function yourAction(User $user)
{
    $breadcrumbs = $this->get("white_october_breadcrumbs");

    // Simple example
    $breadcrumbs->prependNamespaceItem("subsection", "Home", $this->get("router")->generate("index"));

    // Example without URL
    $breadcrumbs->addNamespaceItem("subsection", "Some text without link");

    // Example with parameter injected into translation "user.profile"
    $breadcrumbs->addNamespaceItem("subsection", $txt, $url, ["%user%" => $user->getName()]);
    
    // Example with route name with required parameters
    $breadcrumbs->addNamespaceRouteItem("subsection", $user->getName(), "user_show", ["id" => $user->getId()]);
}

Then to render the subsection breadcrumbs in your templates, specify this namespace in the options:

{{ wo_render_breadcrumbs({namespace: "subsection"}) }}

Advanced Usage

You can add a whole array of objects at once

$breadcrumbs->addObjectArray(array $objects, $text, $url, $translationParameters);

objects:            array of objects
text:               name of object property or closure
url:                name of URL property or closure

Example:

$that = $this;
$breadcrumbs->addObjectArray($selectedPath, "name", function($object) use ($that) {
    return $that->generateUrl('_object_index', ['slug' => $object->getSlug()]);
});

You can also add a tree path

$breadcrumbs->addObjectTree($object, $text, $url = "", $parent = 'parent', array $translationParameters = [], $firstPosition = -1)

object:             object to start with
text:               name of object property or closure
url:                name of URL property or closure
parent:             name of parent property or closure
firstPosition:      position to start inserting items (-1 = determine automatically)

NOTE: You can use addNamespaceObjectArray and addNamespaceObjectTree respectively for work with multiple breadcrumbs on the same page.

Overriding the template

There are two methods for doing this.

1. You can override the template used by copying the Resources/views/microdata.html.twig file out of the bundle and placing it into app/Resources/WhiteOctoberBreadcrumbsBundle/views, then customising as you see fit. Check the Overriding bundle templates documentation section for more information.

2. Use the viewTemplate configuration parameter:

   {{ wo_render_breadcrumbs({ viewTemplate: "YourOwnBundle::yourBreadcrumbs.html.twig" }) }}

NOTE: If you want to use the JSON-LD format, there's already an existing template at WhiteOctoberBreadcrumbsBundle::json-ld.html.twig. Just set this template as the value for viewTemplate either in your Twig function call (see Step 2 above) or in your bundle configuration.

(This project was originally at https://github.com/whiteoctober/BreadcrumbsBundle)