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<?php

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/**

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* File with the class to handle data from WooThemes SEO.

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* @package WPSEO\Admin\Import\Plugins

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/**

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* Class WPSEO_Import_WooThemes_SEO

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

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class WPSEO_Import_WooThemes_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 = 'WooThemes SEO';

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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 = 'seo_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' => 'seo_description',

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'new_key' => 'metadesc',

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[

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'old_key' => 'seo_title',

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'new_key' => 'title',

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[

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'old_key' => 'seo_noindex',

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'new_key' => 'meta-robots-noindex',

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[

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'old_key' => 'seo_follow',

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'new_key' => 'meta-robots-nofollow',

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];

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/**

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* Holds the meta fields we can delete after import.

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* @var array

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protected $cleanup_metas = [

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'seo_follow',

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'seo_noindex',

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'seo_title',

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'seo_description',

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'seo_keywords',

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];

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/**

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* Holds the options we can delete after import.

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* @var array

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protected $cleanup_options = [

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'seo_woo_archive_layout',

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'seo_woo_single_layout',

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'seo_woo_page_layout',

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'seo_woo_wp_title',

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'seo_woo_meta_single_desc',

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'seo_woo_meta_single_key',

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'seo_woo_home_layout',

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];

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/**

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* Cleans up the WooThemes SEO settings.

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* @return bool Cleanup status.

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protected function cleanup() {

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$result = $this->cleanup_meta();

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if ( $result ) {

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$this->cleanup_options();

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}

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return $result;

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}

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/**

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* Removes the Woo Options from the database.

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* @return void

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private function cleanup_options() {

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foreach ( $this->cleanup_options as $option ) {

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delete_option( $option );

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}

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}

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/**

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* Removes the post meta fields from the database.

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* @return bool Cleanup status.

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private function cleanup_meta() {

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foreach ( $this->cleanup_metas as $key ) {

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$result = $this->cleanup_meta_key( $key );

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if ( ! $result ) {

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return false;

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}

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}

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return true;

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}

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/**

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* Removes a single meta field from the postmeta table in the database.

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* @param string $key The meta_key to delete.

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* @return bool Cleanup status.

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private function cleanup_meta_key( $key ) {

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global $wpdb;

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$wpdb->query(

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$wpdb->prepare(

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"DELETE FROM {$wpdb->postmeta} WHERE meta_key = %s",

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$key

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)

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);

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return $wpdb->__get( 'result' );

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}

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}

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