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<?php

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namespace Yoast\WP\SEO\Helpers;

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use Yoast\WP\SEO\Models\Indexable;

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/**

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* A helper object for the robots meta tag.

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class Robots_Helper {

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/**

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* Holds the Post_Type_Helper.

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* @var Post_Type_Helper

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protected $post_type_helper;

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/**

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* Holds the Taxonomy_Helper.

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* @var Taxonomy_Helper

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protected $taxonomy_helper;

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/**

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* Constructs a Score_Helper.

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* @param Post_Type_Helper $post_type_helper The Post_Type_Helper.

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* @param Taxonomy_Helper $taxonomy_helper The Taxonomy_Helper.

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public function __construct(

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Post_Type_Helper $post_type_helper,

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Taxonomy_Helper $taxonomy_helper

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) {

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$this->post_type_helper = $post_type_helper;

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$this->taxonomy_helper = $taxonomy_helper;

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}

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/**

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* Retrieves whether the Indexable is indexable.

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* @param Indexable $indexable The Indexable.

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* @return bool Whether the Indexable is indexable.

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public function is_indexable( Indexable $indexable ) {

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if ( $indexable->is_robots_noindex === null ) {

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// No individual value set, check the global setting.

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switch ( $indexable->object_type ) {

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case 'post':

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return $this->post_type_helper->is_indexable( $indexable->object_sub_type );

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case 'term':

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return $this->taxonomy_helper->is_indexable( $indexable->object_sub_type );

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}

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}

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return $indexable->is_robots_noindex === false;

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}

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/**

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* Sets the robots index to noindex.

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* @param array $robots The current robots value.

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* @return array The altered robots string.

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public function set_robots_no_index( $robots ) {

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if ( ! \is_array( $robots ) ) {

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\_deprecated_argument( __METHOD__, '14.1', '$robots has to be a key-value paired array.' );

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return $robots;

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}

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$robots['index'] = 'noindex';

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return $robots;

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}

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}

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