README

This bundle adds SEO capabilities for any model entities.

Features

• 301 Redirects when accessing an old URL
• SEO Metadata (title and description)
• Canonical URL
• Schema.org
• Breadcrumb
• Sitemap

Installation

$ composer require umanit/seo-bundle

Configuration

The template needs to be declared in your Twig configuration, before other templates. You must choose one between:

twig:
    # ...
    form_themes:
        - '@UmanitSeo/sylius/form/fields.html.twig'
        # OR
        - '@UmanitSeo/sonata/form/fields.html.twig'
        - ...

You can configure your bundle further by creating a umanit_seo.yaml configuration file. Here is the default configuration provided by the bundle:

# Default configuration for extension with alias: "umanit_seo"
umanit_seo:

    # Historize URLs of entities which implements HistorizableUrlModelInterface
    url_historization:
        enabled: true

        # Redirect code used by UrlRedirectorSubscriber
        redirect_code: 301

        # Cache service used to store entities dependencies. **MUST** implements \Symfony\Contracts\Cache\CacheInterface
        cache_service: cache.app

    # Defines the default templates used to render breadcrumbs
    templates:
        breadcrumb_json_ld: '@UmanitSeo/breadcrumb/breadcrumb.json-ld.html.twig'
        breadcrumb_microdata: '@UmanitSeo/breadcrumb/breadcrumb.microdata.html.twig'
        breadcrumb_rdfa: '@UmanitSeo/breadcrumb/breadcrumb.rdfa.html.twig'
    metadata:
        form_type:

            # Automaticaly add a SeoMetadataType on FormType which handled an entity which implements HasSeoMetadataInterface
            add_seo_metadata_type: true

            # FQCN of the FormType used to renders SEO Metadata fields
            class_fqcn: Umanit\SeoBundle\Form\Type\SeoMetadataType

            # Injects Google Code Prettify when rendering breadcrumb and schema.org in FormType.
            inject_code_prettify: true
        default_title: 'Umanit Seo - Customize this default title to your needs.'
        title_prefix: ''
        title_suffix: ''
        default_description: 'Umanit Seo - Customize this default description to your needs.'

Usage

1. Basic Usage
2. Seo Metadata
3. Schema.org
4. Breadcrumb
5. Enabling 301 redirects
6. Twig functions reference
7. Protips

Basic usage

In order to function properly, SeoBundle must be able to generate a URL for a given entity. To do so, the umanit_seo.routable service uses handlers to process the entity.

A handler is a service which implements Umanit\SeoBundle\Handler\Routable\RoutableHandlerInterface. A supports method indicated if the service can handle the given entity and a process method do the job by returning a Umanit\SeoBundle\Model\Route object.

The Umanit\SeoBundle\Model\Route object has a name attribute, which is the name of the route used to access the entity and a parameters attribute used to build the route.

You must implement the interface Umanit\SeoBundle\Model\RoutableModelInterface on your entity and create a handler to process it.

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Umanit\SeoBundle\Model\RoutableModelInterface;

 #[ORM\Entity]
class Page implements RoutableModelInterface
{
    // ...
}

<?php

declare(strict_types=1);

namespace App\Seo\Routable;

use App\Entity\Page;
use Umanit\SeoBundle\Handler\Routable\RoutableHandlerInterface;
use Umanit\SeoBundle\Model\RoutableModelInterface;
use Umanit\SeoBundle\Model\Route;

class PageHandler implements RoutableHandlerInterface
{
    public function supports(RoutableModelInterface $entity): bool
    {
        return $entity instanceof Page;
    }

    public function process(RoutableModelInterface $entity): Route
    {
        return new Route('app_page_show', ['slug' => $entity->getSlug()]);
    }
}

SeoBundle will now be able to generate a URL from the entity. If you ever change the slug of a page, the old URL will be redirected to the new one.

If you wanted to generate the URL by yourself you would have done something like the following example:

{{ path('app_page_show', { 'slug': my_page.slug }) }}"

You can now do like so:

{{ path(my_page) }}

Note: You can use the canonical() function without passing it an entity, SeoBundle will automatically resolve the entity associated to the current accessed route and generate the url from it.

Usually, you'll want to use the canonical() function directly within your main layout.

Seo Metadata

Use the seo_metadata(your_entity) twig function in your templates.

SeoBundle will automatically find the most pertinent fields in your entity to deduct title and description.

Again, seo_metadata() can be used without passing it any entity.

Administrating metadata

In order to administrate Seo Metadata, you'll need again to tune-up your entity.

Make your entity implement the HasSeoMetadataInterface and use the SeoMetadataTrait

<?php

declare(strict_types=1);

namespace App\Entity;

use Umanit\SeoBundle\Doctrine\Model\SeoMetadataTrait;
use Umanit\SeoBundle\Model\HasSeoMetadataInterface;
use Umanit\SeoBundle\Model\RoutableModelInterface;

class Page implements RoutableModelInterface, HasSeoMetadataInterface
{
    use SeoMetadataTrait;

    // ...
}

If the configuration umanit_seo.metadata.form_type.add_seo_metadata_type is not disabled, all form which handles your entity as data will automatically have a new SeoMetadataType form type.

This will add a subform with two fields, title and description.

Note: The form type class can be customized with umanit_seo.metadata.form_type.class_fqcn.

Schema.org implementation

To generate valid schema.org json microdata, SeoBundle must be able to process the given entity. To do so, the umanit_seo.schemable service uses handlers to process the entity.

A handler is a service which implements Umanit\SeoBundle\Handler\Schemable\SchemableHandlerInterface. A supports method indicated if the service can handle the given entity and a process method do the job by returning a Spatie\SchemaOrg\BaseType object.

The Spatie\SchemaOrg\BaseType object is provided by the library spatie/schema-org.

You must implement the interface Umanit\SeoBundle\Model\SchemableModelInterface on your entity and create a handler to process it.

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Umanit\SeoBundle\Model\SchemableModelInterface;

 #[ORM\Entity]
class Page implements SchemableModelInterface
{
    // ...
}

<?php

declare(strict_types=1);

namespace App\Seo\Schemable;

use App\Entity\Page;
use Spatie\SchemaOrg\BaseType;
use Spatie\SchemaOrg\Schema;
use Umanit\SeoBundle\Handler\Schemable\SchemableHandlerInterface;
use Umanit\SeoBundle\Model\SchemableModelInterface;

class PageHandler implements SchemableHandlerInterface
{
    public function supports(SchemableModelInterface $entity): bool
    {
        return $entity instanceof Page;
    }

    /**
     * @param Page $entity
    */
    public function process(SchemableModelInterface $entity): BaseType
    {
        return Schema::mensClothingStore()
                     ->name($entity->getName())
                     ->url($entity->getSlug())
                     ->contactPoint(Schema::contactPoint()->areaServed('Worldwide'))
            ;
    }
}

Next, add the twig function seo_schema_org() at the bottom of your layout.

The function will format and display the json schema of the current entity as you defined it.

<script type="application/ld+json">
    {
        "@context": "https:\/\/schema.org",
        "@type": "MensClothingStore",
        "name": "Test",
        "email": "test@umanit.fr",
        "contactPoint": {
            "@type": "ContactPoint",
            "areaServed": "Worldwide"
        }
    }

</script>

Breadcrumb

You can easily generate your breadcrumb in 3 different formats; Microdata, RDFa or JSON-LD as described by the specification. To do so, the umanit_seo.breadcrumbable service uses handlers to process the entity.

A handler is a service which implements Umanit\SeoBundle\Handler\Breadcrumbable\BreadcrumbableHandlerInterface. A supports method indicated if the service can handle the given entity and a process method do the job by returning a Umanit\SeoBundle\Model\Breadcrumb object.

The Umanit\SeoBundle\Model\Breadcrumb obect has a format attribute, which is one of the previously mentionned and a items attributes which is an array of Umanit\SeoBundle\Model\BreadcrumbItem. Each BreadcrumbItem has a label attribute and an optionnal url attribute.

You must implement the interface Umanit\SeoBundle\Model\BreadcrumbableModelInterface on your entity and create a handler to process it.

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Umanit\SeoBundle\Model\BreadcrumbableModelInterface;

 #[ORM\Entity]
class Page implements BreadcrumbableModelInterface
{
    // ...
}

<?php

declare(strict_types=1);

namespace App\Seo\Breadcrumbable;

use App\Entity\Page;
use Umanit\SeoBundle\Handler\Breadcrumbable\BreadcrumbableHandlerInterface;
use Umanit\SeoBundle\Model\Breadcrumb;
use Umanit\SeoBundle\Model\BreadcrumbableModelInterface;
use Umanit\SeoBundle\Model\BreadcrumbItem;

class PageHandler implements BreadcrumbableHandlerInterface
{
    public function supports(BreadcrumbableModelInterface $entity): bool
    {
        return $entity instanceof Page;
    }

    /**
     * @param Page $entity
     */
    public function process(BreadcrumbableModelInterface $entity): Breadcrumb
    {
        $breadcrumb = new Breadcrumb();

        $breadcrumb->setItems([
            new BreadcrumbItem('Homepage', '/'),
            new BreadcrumbItem(
                $entity->getCategory()->getName(),
                $this->router->generate('app_page_category_show', ['slug' => $entity->getCategory()->getSlug()])
            ),
            new BreadcrumbItem($entity->getName()),
        ]);

        return $breadcrumb;
    }
}

Note: If the processed entity implements the RoutableModelInterface, you can omit the url attribute to let the service umanit_seo.routable generate it for you.

You can now use the twig function seo_breadcrumb() like the following examples:

{{ seo_breadcrumb() }} {# Will generate the breadcrumb from the current entity using microdata format #}
{{ seo_breadcrumb(entity=my_entity, format='json-ld') }} {# Will generate the breadcrumb from my_entity using json-ld format #}
{{ seo_breadcrumb(format='rdfa') }} {# Will generate the breadcrumb from the current entity using rdfa format #}

Enabling 301 redirects

In order to enable URL history and 301 redirects on an entity, ensure the configuration umanit_seo.url_historization.enabled is active (yes by default) then implement the interface Umanit\SeoBundle\Model\HistorizableUrlModelInterface and use the trait Umanit\SeoBundle\Doctrine\Model\HistorizableUrlTrait.

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Umanit\SeoBundle\Doctrine\Model\HistorizableUrlTrait;
use Umanit\SeoBundle\Model\HistorizableUrlModelInterface;

 #[ORM\Entity]
class Page implements HistorizableUrlModelInterface
{
    use HistorizableUrlTrait;

    // ...
}

Twig functions reference

{{ path(entity, parameters = []) }}                 # Path to an Seo entity
{{ url(entity, parameters = []) }}                  # Url to an Seo entity
{{ seo_canonical(entity = null, parameters = []) }} # Canonical link of an Seo entity
{{ seo_title(entity = null) }}                      # Title (without markup) of an Seo entity
{{ seo_metadata(entity = null) }}                   # Metadata of an entity (title and description, with markup)
{{ seo_schema_org(entity = null) }}                 # Json schema of an entity (with markup)
{{ seo_breadcrumb(entity = null, format = null) }}  # Breadcrumb from an entity (default format to 'microdata')

Protips

• The HistorizableUrlModelInterface extends the RoutableModelInterface, so you don't need to implement both,
• you can use a custom HTTP code when redirecting by overriding umanit_seo.url_historization.redirect_code,
• you can use a custom cache service for Umanit\SeoBundle\Doctrine\EventSubscriber\UrlHistoryWriter by overriding umanit_seo.url_historization.cache_service,
• if one of your service needs the @router, you can implement Umanit\SeoBundle\Service\RouterAwareInterface and use the trait Umanit\SeoBundle\Service\RouterAwareTrait (usefull for breadcrumb handlers!).