khaihihi

wp-content/plugins/wordpress-seo/admin/links/class-link-storage.php

@@ -0,0 +1,167 @@
+<?php
+/**
+ * WPSEO plugin file.
+ *
+ * @package WPSEO\Admin\Links
+ */
+
+/**
+ * Represents the storage of an seo link.
+ */
+class WPSEO_Link_Storage implements WPSEO_Installable {
+
+	/**
+	 * Table name for the link storage.
+	 *
+	 * @var string
+	 */
+	const TABLE_NAME = 'yoast_seo_links';
+
+	/**
+	 * An instance of the database proxy class.
+	 *
+	 * @var WPSEO_Database_Proxy
+	 */
+	protected $database_proxy;
+
+	/**
+	 * Holds the prefix of the database table.
+	 *
+	 * @deprecated 7.4
+	 *
+	 * @var null|string
+	 */
+	protected $table_prefix;
+
+	/**
+	 * Initializes the database table.
+	 *
+	 * @param string $table_prefix Optional. Deprecated argument.
+	 */
+	public function __construct( $table_prefix = null ) {
+		if ( $table_prefix !== null ) {
+			_deprecated_argument( __METHOD__, 'WPSEO 7.4' );
+		}
+
+		$this->database_proxy = new WPSEO_Database_Proxy( $GLOBALS['wpdb'], self::TABLE_NAME, true );
+	}
+
+	/**
+	 * Returns the table name to use.
+	 *
+	 * @return string The table name.
+	 */
+	public function get_table_name() {
+		return $this->database_proxy->get_table_name();
+	}
+
+	/**
+	 * Creates the database table.
+	 *
+	 * @return boolean True if the table was created, false if something went wrong.
+	 */
+	public function install() {
+		return $this->database_proxy->create_table(
+			[
+				'id bigint(20) unsigned NOT NULL AUTO_INCREMENT',
+				'url varchar(255) NOT NULL',
+				'post_id bigint(20) unsigned NOT NULL',
+				'target_post_id bigint(20) unsigned NOT NULL',
+				'type VARCHAR(8) NOT NULL',
+			],
+			[
+				'PRIMARY KEY (id)',
+				'KEY link_direction (post_id, type)',
+			]
+		);
+	}
+
+	/**
+	 * Returns an array of links from the database.
+	 *
+	 * @param int $post_id The post to get the links for.
+	 *
+	 * @return WPSEO_Link[] The links connected to the post.
+	 */
+	public function get_links( $post_id ) {
+		global $wpdb;
+
+		$results = $this->database_proxy->get_results(
+			$wpdb->prepare(
+				'
+				SELECT url, post_id, target_post_id, type
+				FROM ' . $this->get_table_name() . '
+				WHERE post_id = %d',
+				$post_id
+			)
+		);
+
+		if ( $this->database_proxy->has_error() ) {
+			WPSEO_Link_Table_Accessible::set_inaccessible();
+		}
+
+		$links = [];
+		foreach ( $results as $link ) {
+			$links[] = WPSEO_Link_Factory::get_link( $link->url, $link->target_post_id, $link->type );
+		}
+
+		return $links;
+	}
+
+	/**
+	 * Walks the given links to save them.
+	 *
+	 * @param integer      $post_id The post id to save.
+	 * @param WPSEO_Link[] $links   The link to save.
+	 *
+	 * @return void
+	 */
+	public function save_links( $post_id, array $links ) {
+		array_walk( $links, [ $this, 'save_link' ], $post_id );
+	}
+
+	/**
+	 * Removes all records for given post_id.
+	 *
+	 * @param int $post_id The post_id to remove the records for.
+	 *
+	 * @return int|false The number of rows updated, or false on error.
+	 */
+	public function cleanup( $post_id ) {
+		$is_deleted = $this->database_proxy->delete(
+			[ 'post_id' => $post_id ],
+			[ '%d' ]
+		);
+
+		if ( $is_deleted === false ) {
+			WPSEO_Link_Table_Accessible::set_inaccessible();
+		}
+
+		return $is_deleted;
+	}
+
+	/**
+	 * Inserts the link into the database.
+	 *
+	 * @param WPSEO_Link $link     The link to save.
+	 * @param int        $link_key The link key. Unused.
+	 * @param int        $post_id  The post id to save the link for.
+	 *
+	 * @return void
+	 */
+	protected function save_link( WPSEO_Link $link, $link_key, $post_id ) {
+		$inserted = $this->database_proxy->insert(
+			[
+				'url'            => $link->get_url(),
+				'post_id'        => $post_id,
+				'target_post_id' => $link->get_target_post_id(),
+				'type'           => $link->get_type(),
+			],
+			[ '%s', '%d', '%d', '%s' ]
+		);
+
+		if ( $inserted === false ) {
+			WPSEO_Link_Table_Accessible::set_inaccessible();
+		}
+	}
+}