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<?php

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/**

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* File with the class to handle data from Platinum SEO Pack.

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* @package WPSEO\Admin\Import\Plugins

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/**

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* Class with functionality to import & clean Ultimate SEO post metadata.

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class WPSEO_Import_Platinum_SEO extends WPSEO_Plugin_Importer {

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/**

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* The plugin name.

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* @var string

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protected $plugin_name = 'Platinum SEO Pack';

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/**

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* Meta key, used in SQL LIKE clause for delete query.

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* @var string

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protected $meta_key = 'title';

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/**

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* Array of meta keys to detect and import.

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* @var array

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protected $clone_keys = [

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[

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'old_key' => 'description',

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'new_key' => 'metadesc',

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[

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'old_key' => 'title',

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'new_key' => 'title',

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];

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/**

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* Runs the import of post meta keys stored by Platinum SEO Pack.

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* @return bool

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protected function import() {

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$return = parent::import();

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if ( $return ) {

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$this->import_robots_meta();

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}

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return $return;

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}

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/**

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* Cleans up all the meta values Platinum SEO pack creates.

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* @return bool

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protected function cleanup() {

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$this->meta_key = 'title';

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parent::cleanup();

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$this->meta_key = 'description';

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parent::cleanup();

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$this->meta_key = 'metarobots';

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parent::cleanup();

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return true;

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}

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/**

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* Finds all the robotsmeta fields to import and deals with them.

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* There are four potential values that Platinum SEO stores:

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* - index,folllow

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* - index,nofollow

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* - noindex,follow

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* - noindex,nofollow

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* We only have to deal with the latter 3, the first is our default.

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* @return void

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protected function import_robots_meta() {

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$this->import_by_meta_robots( 'index,nofollow', [ 'nofollow' ] );

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$this->import_by_meta_robots( 'noindex,follow', [ 'noindex' ] );

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$this->import_by_meta_robots( 'noindex,nofollow', [ 'noindex', 'nofollow' ] );

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}

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/**

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* Imports the values for all index, nofollow posts.

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* @param string $value The meta robots value to find posts for.

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* @param array $metas The meta field(s) to save.

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* @return void

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protected function import_by_meta_robots( $value, $metas ) {

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$posts = $this->find_posts_by_robots_meta( $value );

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if ( ! $posts ) {

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return;

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}

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foreach ( $posts as $post_id ) {

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foreach ( $metas as $meta ) {

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$this->maybe_save_post_meta( 'meta-robots-' . $meta, 1, $post_id );

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}

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}

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}

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/**

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* Finds posts by a given meta robots value.

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* @param string $meta_value Robots meta value.

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* @return array|bool Array of Post IDs on success, false on failure.

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protected function find_posts_by_robots_meta( $meta_value ) {

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$posts = get_posts(

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[

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'post_type' => 'any',

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'meta_key' => 'robotsmeta',

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'meta_value' => $meta_value,

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'order' => 'ASC',

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'fields' => 'ids',

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'nopaging' => true,

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]

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);

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if ( empty( $posts ) ) {

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return false;

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}

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return $posts;

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}

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}

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