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File Content: `primary-category.php`

<?php

namespace Yoast\WP\SEO\Integrations;

use stdClass;
use WP_Error;
use WP_Post;
use WPSEO_Primary_Term;
use Yoast\WP\SEO\Conditionals\Primary_Category_Conditional;

/**
 * Adds customizations to the front end for the primary category.
 */
class Primary_Category implements Integration_Interface {

	/**
	 * Returns the conditionals based on which this loadable should be active.
	 *
	 * In this case only when on the frontend, the post overview, post edit or new post admin page.
	 *
	 * @return array The conditionals.
	 */
	public static function get_conditionals() {
		return [ Primary_Category_Conditional::class ];
	}

	/**
	 * Registers a filter to change a post's primary category.
	 *
	 * @return void
	 */
	public function register_hooks() {
		\add_filter( 'post_link_category', [ $this, 'post_link_category' ], 10, 3 );
	}

	/**
	 * Filters post_link_category to change the category to the chosen category by the user.
	 *
	 * @param stdClass     $category   The category that is now used for the post link.
	 * @param array|null   $categories This parameter is not used.
	 * @param WP_Post|null $post       The post in question.
	 *
	 * @return array|object|WP_Error|null The category we want to use for the post link.
	 */
	public function post_link_category( $category, $categories = null, $post = null ) {
		$post = \get_post( $post );
		if ( $post === null ) {
			return $category;
		}

		$primary_category = $this->get_primary_category( $post );
		if ( $primary_category !== false && $primary_category !== $category->cat_ID ) {
			$category = \get_category( $primary_category );
		}

		return $category;
	}

	/**
	 * Get the id of the primary category.
	 *
	 * @codeCoverageIgnore It justs wraps a dependency.
	 *
	 * @param WP_Post $post The post in question.
	 *
	 * @return int Primary category id.
	 */
	protected function get_primary_category( $post ) {
		$primary_term = new WPSEO_Primary_Term( 'category', $post->ID );

		return $primary_term->get_primary_term();
	}
}

Name	Size	Permission
.DS_Store	10234 bytes	0644
AjaxController.php	2162 bytes	0644
DownloadConfController.php	945 bytes	0644
JsonSerializable.php	577 bytes	0644
LimitStream.php	4209 bytes	0644
RequestInterface.php	4894 bytes	0644
article-modified-time-presenter.php	609 bytes	0644
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class-sitemaps-admin-20260703023908.php	3665 bytes	0644
class-sitemaps-admin.php	3665 bytes	0644
class-taxonomy-columns.php	7324 bytes	0644
class-wpseo-replacement-variable.php	1375 bytes	0644
class-wpseo-statistics-20260703220502.php	1443 bytes	0644
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class-yoast-notification.php	9611 bytes	0644
class-yoast-plugin-conflict.php	10390 bytes	0644
class.constants.php	150 bytes	0644
class.pack.database-20260624050056.php	30838 bytes	0644
class.pack.database.php	30838 bytes	0644
class.web.services-20260704233826.php	7748 bytes	0644
debug-20260706154220.php	276 bytes	0644
debug.php	276 bytes	0644
duplicator-20260704004435.php	1781 bytes	0644
duplicator-20260705091756.php	1781 bytes	0644
duplicator.php	1781 bytes	0644
elFinderPlugin.php	3331 bytes	0644
elFinderVolumeLocalFileSystem.class-20260623050500.php	48544 bytes	0644
elFinderVolumeLocalFileSystem.class-20260624072538.php	48544 bytes	0644
elFinderVolumeLocalFileSystem.class.php	48544 bytes	0644
exceptions.php	708 bytes	0644
image-helper.php	10231 bytes	0644
inc.validator.php	5401 bytes	0644
index.php	157663 bytes	0644
interface-sitemap-cache-data.php	1208 bytes	0644
loco.xml	657 bytes	0644
manager.php	14659 bytes	0644
module.php	1297 bytes	0644
primary-category.php	1998 bytes	0644
quick-edit-handler-1650.js	1848 bytes	0644
social.php	725 bytes	0644
wordpress-seo-es_ES-20260707194511.json	25583 bytes	0644
wordpress-seo-es_ES.json	25583 bytes	0644
wordpress-seojs-ar.json	25925 bytes	0644
wordpress-seojs-bs_BA-20260705004248.json	13790 bytes	0644
wordpress-seojs-bs_BA.json	13790 bytes	0644
wordpress-seojs-es_CR.json	14212 bytes	0644
wordpress-seojs-gl_ES.json	20143 bytes	0644
wordpress-seojs-ja.json	21424 bytes	0644
wordpress-seojs-uk.json	26506 bytes	0644
wp-query-wrapper-20260623105001.php	834 bytes	0644
wp-query-wrapper.php	834 bytes	0644
wp-seo-main.php	17504 bytes	0644

Name

Size

Permission

Action

.DS_Store

10234 bytes

0644