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<?php /** * WPSEO plugin file. * * @package WPSEO\Internals * @since 1.5.0 */
/** * This class implements defaults and value validation for all WPSEO Post Meta values. * * Some guidelines: * - To update a meta value, you can just use update_post_meta() with the full (prefixed) meta key * or the convenience method WPSEO_Meta::set_value() with the internal key. * All updates will be automatically validated. * Meta values will only be saved to the database if they are *not* the same as the default to * keep database load low. * - To retrieve a WPSEO meta value, you **must** use WPSEO_Meta::get_value() which will always return a * string value, either the saved value or the default. * This method can also retrieve a complete set of WPSEO meta values for one specific post, see * the method documentation for the parameters. * * {@internal Unfortunately there isn't a filter available to hook into before returning the results * for get_post_meta(), get_post_custom() and the likes. That would have been the * preferred solution.}} * * {@internal All WP native get_meta() results get cached internally, so no need to cache locally.}} * {@internal Use $key when the key is the WPSEO internal name (without prefix), $meta_key when it * includes the prefix.}} */ class WPSEO_Meta {
/** * Prefix for all WPSEO meta values in the database. * * {@internal If at any point this would change, quite apart from an upgrade routine, * this also will need to be changed in the wpml-config.xml file.}} * * @var string */ public static $meta_prefix = '_yoast_wpseo_';
/** * Prefix for all WPSEO meta value form field names and ids. * * @var string */ public static $form_prefix = 'yoast_wpseo_';
/** * Allowed length of the meta description. * * @var int */ public static $meta_length = 156;
/** * Reason the meta description is not the default length. * * @var string */ public static $meta_length_reason = '';
/** * Meta box field definitions for the meta box form. * * {@internal * - Titles, help texts, description text and option labels are added via a translate_meta_boxes() method * in the relevant child classes (WPSEO_Metabox and WPSEO_Social_admin) as they are only needed there. * - Beware: even though the meta keys are divided into subsets, they still have to be uniquely named!}} * * @var array $meta_fields * Array format: * (required) 'type' => (string) field type. i.e. text / textarea / checkbox / * radio / select / multiselect / upload etc. * (required) 'title' => (string) table row title. * (recommended) 'default_value' => (string|array) default value for the field. * IMPORTANT: * - if the field has options, the default has to be the * key of one of the options. * - if the field is a text field, the default **has** to be * an empty string as otherwise the user can't save * an empty value/delete the meta value. * - if the field is a checkbox, the only valid values * are 'on' or 'off'. * (semi-required) 'options' => (array) options for used with (multi-)select and radio * fields, required if that's the field type. * key = (string) value which will be saved to db. * value = (string) text label for the option. * (optional) 'autocomplete' => (bool) whether autocomplete is on for text fields, * defaults to true. * (optional) 'class' => (string) classname(s) to add to the actual <input> tag. * (optional) 'description' => (string) description to show underneath the field. * (optional) 'expl' => (string) label for a checkbox. * (optional) 'help' => (string) help text to show on mouse over ? image. * (optional) 'rows' => (int) number of rows for a textarea, defaults to 3. * (optional) 'placeholder' => (string) Currently only used by add-on plugins. * (optional) 'serialized' => (bool) whether the value is expected to be serialized, * i.e. an array or object, defaults to false. * Currently only used by add-on plugins. */ public static $meta_fields = array( 'general' => array( 'focuskw' => array( 'type' => 'hidden', 'title' => '', ), 'title' => array( 'type' => 'hidden', 'title' => '', // Translation added later. 'default_value' => '', 'description' => '', // Translation added later. 'help' => '', // Translation added later. ), 'metadesc' => array( 'type' => 'hidden', 'title' => '', // Translation added later. 'default_value' => '', 'class' => 'metadesc', 'rows' => 2, 'description' => '', // Translation added later. 'help' => '', // Translation added later. ), 'linkdex' => array( 'type' => 'hidden', 'title' => 'linkdex', 'default_value' => '0', 'description' => '', ), 'content_score' => array( 'type' => 'hidden', 'title' => 'content_score', 'default_value' => '0', 'description' => '', ), 'is_cornerstone' => array( 'type' => 'hidden', 'title' => 'is_cornerstone', 'default_value' => 'false', 'description' => '', ), ), 'advanced' => array( 'meta-robots-noindex' => array( 'type' => 'select', 'title' => '', // Translation added later. 'default_value' => '0', // = post-type default. 'options' => array( '0' => '', // Post type default - translation added later. '2' => '', // Index - translation added later. '1' => '', // No-index - translation added later. ), ), 'meta-robots-nofollow' => array( 'type' => 'radio', 'title' => '', // Translation added later. 'default_value' => '0', // = follow. 'options' => array( '0' => '', // Follow - translation added later. '1' => '', // No-follow - translation added later. ), ), 'meta-robots-adv' => array( 'type' => 'multiselect', 'title' => '', // Translation added later. 'default_value' => '-', // = site-wide default. 'description' => '', // Translation added later. 'options' => array( '-' => '', // Site-wide default - translation added later. 'none' => '', // Translation added later. 'noimageindex' => '', // Translation added later. 'noarchive' => '', // Translation added later. 'nosnippet' => '', // Translation added later. ), ), 'bctitle' => array( 'type' => 'text', 'title' => '', // Translation added later. 'default_value' => '', 'description' => '', // Translation added later. ), 'canonical' => array( 'type' => 'text', 'title' => '', // Translation added later. 'default_value' => '', 'description' => '', // Translation added later. ), 'redirect' => array( 'type' => 'text', 'title' => '', // Translation added later. 'default_value' => '', 'description' => '', // Translation added later. ), ), 'social' => array(), /* Fields we should validate & save, but not show on any form. */ 'non_form' => array( 'linkdex' => array( 'type' => null, 'default_value' => '0', ), ), );
/** * Helper property - reverse index of the definition array. * * Format: [full meta key including prefix] => array * ['subset'] => (string) primary index * ['key'] => (string) internal key * * @var array */ public static $fields_index = array();
/** * Helper property - array containing only the defaults in the format: * [full meta key including prefix] => (string) default value * * @var array */ public static $defaults = array();
/** * Helper property to define the social network meta field definitions - networks. * * @var array */ private static $social_networks = array( 'opengraph' => 'opengraph', 'twitter' => 'twitter', );
/** * Helper property to define the social network meta field definitions - fields and their type. * * @var array */ private static $social_fields = array( 'title' => 'text', 'description' => 'textarea', 'image' => 'upload', 'image-id' => 'hidden', );
/** * Register our actions and filters. * * @return void */ public static function init() {
foreach ( self::$social_networks as $option => $network ) { if ( true === WPSEO_Options::get( $option, false ) ) { foreach ( self::$social_fields as $box => $type ) { self::$meta_fields['social'][ $network . '-' . $box ] = array( 'type' => $type, 'title' => '', // Translation added later. 'default_value' => '', 'description' => '', // Translation added later. ); } } } unset( $option, $network, $box, $type );
/** * Allow add-on plugins to register their meta fields for management by this class. * Calls to add_filter() must be made before plugins_loaded prio 14. */ $extra_fields = apply_filters( 'add_extra_wpseo_meta_fields', array() ); if ( is_array( $extra_fields ) ) { self::$meta_fields = self::array_merge_recursive_distinct( $extra_fields, self::$meta_fields ); } unset( $extra_fields );
foreach ( self::$meta_fields as $subset => $field_group ) { foreach ( $field_group as $key => $field_def ) {
register_meta( 'post', self::$meta_prefix . $key, array( 'sanitize_callback' => array( __CLASS__, 'sanitize_post_meta' ) ) );
// Set the $fields_index property for efficiency. self::$fields_index[ self::$meta_prefix . $key ] = array( 'subset' => $subset, 'key' => $key, );
// Set the $defaults property for efficiency. if ( isset( $field_def['default_value'] ) ) { self::$defaults[ self::$meta_prefix . $key ] = $field_def['default_value']; } else { // Meta will always be a string, so let's make the meta meta default also a string. self::$defaults[ self::$meta_prefix . $key ] = ''; } } } unset( $subset, $field_group, $key, $field_def );
add_filter( 'update_post_metadata', array( __CLASS__, 'remove_meta_if_default' ), 10, 5 ); add_filter( 'add_post_metadata', array( __CLASS__, 'dont_save_meta_if_default' ), 10, 4 ); }
/** * Retrieve the meta box form field definitions for the given tab and post type. * * @param string $tab Tab for which to retrieve the field definitions. * @param string $post_type Post type of the current post. * * @return array Array containing the meta box field definitions. */ public static function get_meta_field_defs( $tab, $post_type = 'post' ) { if ( ! isset( self::$meta_fields[ $tab ] ) ) { return array(); }
$field_defs = self::$meta_fields[ $tab ];
switch ( $tab ) { case 'non-form': // Prevent non-form fields from being passed to forms. $field_defs = array(); break;
case 'advanced': global $post;
if ( ! WPSEO_Capability_Utils::current_user_can( 'wpseo_edit_advanced_metadata' ) && WPSEO_Options::get( 'disableadvanced_meta' ) ) { return array(); }
$post_type = ''; if ( isset( $post->post_type ) ) { $post_type = $post->post_type; } elseif ( ! isset( $post->post_type ) && isset( $_GET['post_type'] ) ) { $post_type = sanitize_text_field( $_GET['post_type'] ); }
if ( $post_type === '' ) { return array(); }
/* Adjust the no-index text strings based on the post type. */ $post_type_object = get_post_type_object( $post_type );
$field_defs['meta-robots-noindex']['title'] = sprintf( $field_defs['meta-robots-noindex']['title'], $post_type_object->labels->singular_name ); $field_defs['meta-robots-noindex']['options']['0'] = sprintf( $field_defs['meta-robots-noindex']['options']['0'], ( ( WPSEO_Options::get( 'noindex-' . $post_type, false ) === true ) ? $field_defs['meta-robots-noindex']['options']['1'] : $field_defs['meta-robots-noindex']['options']['2'] ), $post_type_object->label ); $field_defs['meta-robots-nofollow']['title'] = sprintf( $field_defs['meta-robots-nofollow']['title'], $post_type_object->labels->singular_name );
/* Adjust the robots advanced 'site-wide default' text string based on those settings. */ $robots_adv = __( 'None', 'wordpress-seo' );
$field_defs['meta-robots-adv']['options']['-'] = sprintf( $field_defs['meta-robots-adv']['options']['-'], $robots_adv ); unset( $robots_adv );
/* Don't show the breadcrumb title field if breadcrumbs aren't enabled. */ if ( WPSEO_Options::get( 'breadcrumbs-enable', false ) !== true && ! current_theme_supports( 'yoast-seo-breadcrumbs' ) ) { unset( $field_defs['bctitle'] ); }
global $post;
if ( empty( $post->ID ) || ( ! empty( $post->ID ) && self::get_value( 'redirect', $post->ID ) === '' ) ) { unset( $field_defs['redirect'] ); } break; }
/** * Filter the WPSEO metabox form field definitions for a tab. * {tab} can be 'general', 'advanced' or 'social'. * * @param array $field_defs Metabox form field definitions. * @param string $post_type Post type of the post the metabox is for, defaults to 'post'. * * @return array */ return apply_filters( 'wpseo_metabox_entries_' . $tab, $field_defs, $post_type ); }
/** * Validate the post meta values. * * @param mixed $meta_value The new value. * @param string $meta_key The full meta key (including prefix). * * @return string Validated meta value. */ public static function sanitize_post_meta( $meta_value, $meta_key ) { $field_def = self::$meta_fields[ self::$fields_index[ $meta_key ]['subset'] ][ self::$fields_index[ $meta_key ]['key'] ]; $clean = self::$defaults[ $meta_key ];
switch ( true ) { case ( $meta_key === self::$meta_prefix . 'linkdex' ): $int = WPSEO_Utils::validate_int( $meta_value ); if ( $int !== false && $int >= 0 ) { $clean = strval( $int ); // Convert to string to make sure default check works. } break;
case ( $field_def['type'] === 'checkbox' ): // Only allow value if it's one of the predefined options. if ( in_array( $meta_value, array( 'on', 'off' ), true ) ) { $clean = $meta_value; } break;
case ( $field_def['type'] === 'select' || $field_def['type'] === 'radio' ): // Only allow value if it's one of the predefined options. if ( isset( $field_def['options'][ $meta_value ] ) ) { $clean = $meta_value; } break;
case ( $field_def['type'] === 'multiselect' && $meta_key === self::$meta_prefix . 'meta-robots-adv' ): $clean = self::validate_meta_robots_adv( $meta_value ); break;
case ( $field_def['type'] === 'text' && $meta_key === self::$meta_prefix . 'canonical' ): case ( $field_def['type'] === 'text' && $meta_key === self::$meta_prefix . 'redirect' ): // Validate as url(-part). $url = WPSEO_Utils::sanitize_url( $meta_value ); if ( $url !== '' ) { $clean = $url; } break;
case ( $field_def['type'] === 'upload' && in_array( $meta_key, array( self::$meta_prefix . 'opengraph-image', self::$meta_prefix . 'twitter-image' ), true ) ): // Validate as url. $url = WPSEO_Utils::sanitize_url( $meta_value, array( 'http', 'https', 'ftp', 'ftps' ) ); if ( $url !== '' ) { $clean = $url; } break;
case ( $field_def['type'] === 'hidden' && $meta_key === self::$meta_prefix . 'is_cornerstone' ): $clean = $meta_value;
/* * This used to be a checkbox, then became a hidden input. * To make sure the value remains consistent, we cast 'true' to '1'. */ if ( $meta_value === 'true' ) { $clean = '1'; } break;
case ( $field_def['type'] === 'textarea' ): if ( is_string( $meta_value ) ) { // Remove line breaks and tabs. // @todo [JRF => Yoast] Verify that line breaks and the likes aren't allowed/recommended in meta header fields. $meta_value = str_replace( array( "\n", "\r", "\t", ' ' ), ' ', $meta_value ); $clean = WPSEO_Utils::sanitize_text_field( trim( $meta_value ) ); } break;
case ( 'multiselect' === $field_def['type'] ): $clean = $meta_value; break;
case ( $field_def['type'] === 'text' ): default: if ( is_string( $meta_value ) ) { $clean = WPSEO_Utils::sanitize_text_field( trim( $meta_value ) ); }
break; }
$clean = apply_filters( 'wpseo_sanitize_post_meta_' . $meta_key, $clean, $meta_value, $field_def, $meta_key );
return $clean; }
/** * Validate a meta-robots-adv meta value. * * @todo [JRF => Yoast] Verify that this logic for the prioritisation is correct. * * @param array|string $meta_value The value to validate. * * @return string Clean value. */ public static function validate_meta_robots_adv( $meta_value ) { $clean = self::$meta_fields['advanced']['meta-robots-adv']['default_value']; $options = self::$meta_fields['advanced']['meta-robots-adv']['options'];
if ( is_string( $meta_value ) ) { $meta_value = explode( ',', $meta_value ); }
if ( is_array( $meta_value ) && $meta_value !== array() ) { $meta_value = array_map( 'trim', $meta_value );
if ( in_array( 'none', $meta_value, true ) ) { // None is one of the selected values, takes priority over everything else. $clean = 'none'; } elseif ( in_array( '-', $meta_value, true ) ) { // Site-wide defaults is one of the selected values, takes priority over individual selected entries. $clean = '-'; } else { // Individual selected entries. $cleaning = array(); foreach ( $meta_value as $value ) { if ( isset( $options[ $value ] ) ) { $cleaning[] = $value; } }
if ( $cleaning !== array() ) { $clean = implode( ',', $cleaning ); } unset( $cleaning, $value ); } }
return $clean; }
/** * Prevent saving of default values and remove potential old value from the database if replaced by a default. * * @param bool $check The current status to allow updating metadata for the given type. * @param int $object_id ID of the current object for which the meta is being updated. * @param string $meta_key The full meta key (including prefix). * @param string $meta_value New meta value. * @param string $prev_value The old meta value. * * @return null|bool True = stop saving, null = continue saving. */ public static function remove_meta_if_default( $check, $object_id, $meta_key, $meta_value, $prev_value = '' ) { /* If it's one of our meta fields, check against default. */ if ( isset( self::$fields_index[ $meta_key ] ) && self::meta_value_is_default( $meta_key, $meta_value ) === true ) { if ( $prev_value !== '' ) { delete_post_meta( $object_id, $meta_key, $prev_value ); } else { delete_post_meta( $object_id, $meta_key ); }
return true; // Stop saving the value. }
return $check; // Go on with the normal execution (update) in meta.php. }
/** * Prevent adding of default values to the database. * * @param bool $check The current status to allow adding metadata for the given type. * @param int $object_id ID of the current object for which the meta is being added. * @param string $meta_key The full meta key (including prefix). * @param string $meta_value New meta value. * * @return null|bool True = stop saving, null = continue saving. */ public static function dont_save_meta_if_default( $check, $object_id, $meta_key, $meta_value ) { /* If it's one of our meta fields, check against default. */ if ( isset( self::$fields_index[ $meta_key ] ) && self::meta_value_is_default( $meta_key, $meta_value ) === true ) { return true; // Stop saving the value. }
return $check; // Go on with the normal execution (add) in meta.php. }
/** * Is the given meta value the same as the default value ? * * @param string $meta_key The full meta key (including prefix). * @param mixed $meta_value The value to check. * * @return bool */ public static function meta_value_is_default( $meta_key, $meta_value ) { return ( isset( self::$defaults[ $meta_key ] ) && $meta_value === self::$defaults[ $meta_key ] ); }
/** * Get a custom post meta value. * * Returns the default value if the meta value has not been set. * * {@internal Unfortunately there isn't a filter available to hook into before returning * the results for get_post_meta(), get_post_custom() and the likes. That * would have been the preferred solution.}} * * @param string $key Internal key of the value to get (without prefix). * @param int $postid Post ID of the post to get the value for. * * @return string All 'normal' values returned from get_post_meta() are strings. * Objects and arrays are possible, but not used by this plugin * and therefore discarted (except when the special 'serialized' field def * value is set to true - only used by add-on plugins for now). * Will return the default value if no value was found. * Will return empty string if no default was found (not one of our keys) or * if the post does not exist. */ public static function get_value( $key, $postid = 0 ) { global $post;
$postid = absint( $postid ); if ( $postid === 0 ) { if ( ( isset( $post ) && is_object( $post ) ) && ( isset( $post->post_status ) && $post->post_status !== 'auto-draft' ) ) { $postid = $post->ID; } else { return ''; } }
$custom = get_post_custom( $postid ); // Array of strings or empty array.
if ( isset( $custom[ self::$meta_prefix . $key ][0] ) ) { $unserialized = maybe_unserialize( $custom[ self::$meta_prefix . $key ][0] ); if ( $custom[ self::$meta_prefix . $key ][0] === $unserialized ) { return $custom[ self::$meta_prefix . $key ][0]; }
if ( isset( self::$fields_index[ self::$meta_prefix . $key ] ) ) { $field_def = self::$meta_fields[ self::$fields_index[ self::$meta_prefix . $key ]['subset'] ][ self::$fields_index[ self::$meta_prefix . $key ]['key'] ]; if ( isset( $field_def['serialized'] ) && $field_def['serialized'] === true ) { // Ok, serialize value expected/allowed. return $unserialized; } } }
// Meta was either not found or found, but object/array while not allowed to be. if ( isset( self::$defaults[ self::$meta_prefix . $key ] ) ) { return self::$defaults[ self::$meta_prefix . $key ]; }
/* * Shouldn't ever happen, means not one of our keys as there will always be a default available * for all our keys. */ return ''; }
/** * Update a meta value for a post. * * @param string $key The internal key of the meta value to change (without prefix). * @param mixed $meta_value The value to set the meta to. * @param int $post_id The ID of the post to change the meta for. * * @return bool Whether the value was changed. */ public static function set_value( $key, $meta_value, $post_id ) { /* * Slash the data, because `update_metadata` will unslash it and we have already unslashed it. * Related issue: https://github.com/Yoast/YoastSEO.js/issues/2158 */ $meta_value = wp_slash( $meta_value );
return update_post_meta( $post_id, self::$meta_prefix . $key, $meta_value ); }
/** * Deletes a meta value for a post. * * @param string $key The internal key of the meta value to change (without prefix). * @param int $post_id The ID of the post to change the meta for. * * @return bool Whether the value was changed. */ public static function delete( $key, $post_id ) { return delete_post_meta( $post_id, self::$meta_prefix . $key ); }
/** * Used for imports, this functions imports the value of $old_metakey into $new_metakey for those post * where no WPSEO meta data has been set. * Optionally deletes the $old_metakey values. * * @param string $old_metakey The old key of the meta value. * @param string $new_metakey The new key, usually the WPSEO meta key (including prefix). * @param bool $delete_old Whether to delete the old meta key/value-sets. * * @return void */ public static function replace_meta( $old_metakey, $new_metakey, $delete_old = false ) { global $wpdb;
/* * Get only those rows where no wpseo meta values exist for the same post * (with the exception of linkdex as that will be set independently of whether the post has been edited). * * {@internal Query is pretty well optimized this way.}} */ $query = $wpdb->prepare( " SELECT `a`.* FROM {$wpdb->postmeta} AS a WHERE `a`.`meta_key` = %s AND NOT EXISTS ( SELECT DISTINCT `post_id` , count( `meta_id` ) AS count FROM {$wpdb->postmeta} AS b WHERE `a`.`post_id` = `b`.`post_id` AND `meta_key` LIKE %s AND `meta_key` <> %s GROUP BY `post_id` ) ;", $old_metakey, $wpdb->esc_like( self::$meta_prefix . '%' ), self::$meta_prefix . 'linkdex' ); $oldies = $wpdb->get_results( $query );
if ( is_array( $oldies ) && $oldies !== array() ) { foreach ( $oldies as $old ) { update_post_meta( $old->post_id, $new_metakey, $old->meta_value ); } }
// Delete old keys. if ( $delete_old === true ) { delete_post_meta_by_key( $old_metakey ); } }
/** * General clean-up of the saved meta values. * - Remove potentially lingering old meta keys; * - Remove all default and invalid values. * * @return void */ public static function clean_up() { global $wpdb;
/* * Clean up '_yoast_wpseo_meta-robots'. * * Retrieve all '_yoast_wpseo_meta-robots' meta values and convert if no new values found. * * {@internal Query is pretty well optimized this way.}} * * @todo [JRF => Yoast] Find out all possible values which the old '_yoast_wpseo_meta-robots' could contain * to convert the data correctly. */ $query = $wpdb->prepare( " SELECT `a`.* FROM {$wpdb->postmeta} AS a WHERE `a`.`meta_key` = %s AND NOT EXISTS ( SELECT DISTINCT `post_id` , count( `meta_id` ) AS count FROM {$wpdb->postmeta} AS b WHERE `a`.`post_id` = `b`.`post_id` AND ( `meta_key` = %s OR `meta_key` = %s ) GROUP BY `post_id` ) ;", self::$meta_prefix . 'meta-robots', self::$meta_prefix . 'meta-robots-noindex', self::$meta_prefix . 'meta-robots-nofollow' ); $oldies = $wpdb->get_results( $query );
if ( is_array( $oldies ) && $oldies !== array() ) { foreach ( $oldies as $old ) { $old_values = explode( ',', $old->meta_value ); foreach ( $old_values as $value ) { if ( $value === 'noindex' ) { update_post_meta( $old->post_id, self::$meta_prefix . 'meta-robots-noindex', 1 ); } elseif ( $value === 'nofollow' ) { update_post_meta( $old->post_id, self::$meta_prefix . 'meta-robots-nofollow', 1 ); } } } } unset( $query, $oldies, $old, $old_values, $value );
// Delete old keys. delete_post_meta_by_key( self::$meta_prefix . 'meta-robots' );
/* * Remove all default values and (most) invalid option values. * Invalid option values for the multiselect (meta-robots-adv) field will be dealt with seperately. * * {@internal Some of the defaults have changed in v1.5, but as the defaults will * be removed and new defaults will now automatically be passed when no * data found, this update is automatic (as long as we remove the old * values which we do in the below routine).}} * * {@internal Unfortunately we can't use the normal delete_meta() with key/value combination * as '' (empty string) values will be ignored and would result in all metas * with that key being deleted, not just the empty fields. * Still, the below implementation is largely based on the delete_meta() function.}} */ $query = array();
foreach ( self::$meta_fields as $subset => $field_group ) { foreach ( $field_group as $key => $field_def ) { if ( ! isset( $field_def['default_value'] ) ) { continue; }
if ( $key === 'meta-robots-adv' ) { $query[] = $wpdb->prepare( "( meta_key = %s AND ( meta_value = 'none' OR meta_value = '-' ) )", self::$meta_prefix . $key ); } elseif ( isset( $field_def['options'] ) && is_array( $field_def['options'] ) && $field_def['options'] !== array() ) { $valid = $field_def['options']; // Remove the default value from the valid options. unset( $valid[ $field_def['default_value'] ] ); $valid = array_keys( $valid );
$query[] = $wpdb->prepare( "( meta_key = %s AND meta_value NOT IN ( '" . implode( "','", esc_sql( $valid ) ) . "' ) )", self::$meta_prefix . $key ); unset( $valid ); } elseif ( is_string( $field_def['default_value'] ) && $field_def['default_value'] !== '' ) { $query[] = $wpdb->prepare( '( meta_key = %s AND meta_value = %s )', self::$meta_prefix . $key, $field_def['default_value'] ); } else { $query[] = $wpdb->prepare( "( meta_key = %s AND meta_value = '' )", self::$meta_prefix . $key ); } } } unset( $subset, $field_group, $key, $field_def );
$query = "SELECT meta_id FROM {$wpdb->postmeta} WHERE " . implode( ' OR ', $query ) . ';'; $meta_ids = $wpdb->get_col( $query );
if ( is_array( $meta_ids ) && $meta_ids !== array() ) { // WP native action. do_action( 'delete_post_meta', $meta_ids, null, null, null );
$query = "DELETE FROM {$wpdb->postmeta} WHERE meta_id IN( " . implode( ',', $meta_ids ) . ' )'; $count = $wpdb->query( $query );
if ( $count ) { foreach ( $meta_ids as $object_id ) { wp_cache_delete( $object_id, 'post_meta' ); }
// WP native action. do_action( 'deleted_post_meta', $meta_ids, null, null, null ); } } unset( $query, $meta_ids, $count, $object_id );
/* * Deal with the multiselect (meta-robots-adv) field. * * Removes invalid option combinations, such as 'none,noarchive'. * * Default values have already been removed, so we should have a small result set and * (hopefully) even smaller set of invalid results. */ $query = $wpdb->prepare( "SELECT meta_id, meta_value FROM {$wpdb->postmeta} WHERE meta_key = %s", self::$meta_prefix . 'meta-robots-adv' ); $oldies = $wpdb->get_results( $query );
if ( is_array( $oldies ) && $oldies !== array() ) { foreach ( $oldies as $old ) { $clean = self::validate_meta_robots_adv( $old->meta_value );
if ( $clean !== $old->meta_value ) { if ( $clean !== self::$meta_fields['advanced']['meta-robots-adv']['default_value'] ) { update_metadata_by_mid( 'post', $old->meta_id, $clean ); } else { delete_metadata_by_mid( 'post', $old->meta_id ); } } } } unset( $query, $oldies, $old, $clean );
do_action( 'wpseo_meta_clean_up' ); }
/** * Recursively merge a variable number of arrays, using the left array as base, * giving priority to the right array. * * Difference with native array_merge_recursive(): * array_merge_recursive converts values with duplicate keys to arrays rather than * overwriting the value in the first array with the duplicate value in the second array. * * array_merge_recursive_distinct does not change the data types of the values in the arrays. * Matching keys' values in the second array overwrite those in the first array, as is the * case with array_merge. * * Freely based on information found on http://www.php.net/manual/en/function.array-merge-recursive.php * * {@internal Should be moved to a general utility class.}} * * @return array */ public static function array_merge_recursive_distinct() {
$arrays = func_get_args(); if ( count( $arrays ) < 2 ) { if ( $arrays === array() ) { return array(); } else { return $arrays[0]; } }
$merged = array_shift( $arrays );
foreach ( $arrays as $array ) { foreach ( $array as $key => $value ) { if ( is_array( $value ) && ( isset( $merged[ $key ] ) && is_array( $merged[ $key ] ) ) ) { $merged[ $key ] = self::array_merge_recursive_distinct( $merged[ $key ], $value ); } else { $merged[ $key ] = $value; } } unset( $key, $value ); }
return $merged; }
/** * Counts the total of all the keywords being used for posts except the given one. * * @param string $keyword The keyword to be counted. * @param integer $post_id The is of the post to which the keyword belongs. * * @return array */ public static function keyword_usage( $keyword, $post_id ) {
if ( empty( $keyword ) ) { return array(); }
$query = array( 'meta_query' => array( 'relation' => 'OR', array( 'key' => '_yoast_wpseo_focuskw', 'value' => $keyword, ), ), 'post__not_in' => array( $post_id ), 'fields' => 'ids', 'post_type' => 'any',
/* * We only need to return zero, one or two results: * - Zero: keyword hasn't been used before * - One: Keyword has been used once before * - Two or more: Keyword has been used twice before */ 'posts_per_page' => 2, );
// If Yoast SEO Premium is active, get the additional keywords as well. if ( WPSEO_Utils::is_yoast_seo_premium() ) { $query['meta_query'][] = array( 'key' => '_yoast_wpseo_focuskeywords', 'value' => sprintf( '"keyword":"%s"', $keyword ), 'compare' => 'LIKE', ); }
$get_posts = new WP_Query( $query );
return $get_posts->posts; }
/* ********************* DEPRECATED METHODS ********************* */
/** * Get a value from $_POST for a given key. * * Returns the $_POST value if exists, returns an empty string if key does not exist. * * @deprecated 9.6 * @codeCoverageIgnore * * @param string $key Key of the value to get from $_POST. * * @return string Returns $_POST value, which will be a string the majority of the time. * Will return empty string if key does not exists in $_POST. */ public static function get_post_value( $key ) { _deprecated_function( __METHOD__, 'WPSEO 9.6' );
// @codingStandardsIgnoreLine return ( array_key_exists( $key, $_POST ) ) ? $_POST[ $key ] : ''; } } /* End of class */
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