'url', 'title' => '', // Translation added later. 'default_value' => '', 'description' => '', // Translation added later. ], ], 'social' => [], 'schema' => [ 'schema_page_type' => [ 'type' => 'hidden', 'title' => '', 'options' => Schema_Types::PAGE_TYPES, ], 'schema_article_type' => [ 'type' => 'hidden', 'title' => '', 'hide_on_pages' => true, 'options' => Schema_Types::ARTICLE_TYPES, ], ], /* Fields we should validate & save, but not show on any form. */ 'non_form' => [ 'linkdex' => [ 'type' => null, 'default_value' => '0', ], 'zapier_trigger_sent' => [ '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 = []; /** * Helper property - array containing only the defaults in the format: * [full meta key including prefix] => (string) default value * * @var array */ public static $defaults = []; /** * Helper property to define the social network meta field definitions - networks. * * @var array */ private static $social_networks = [ 'opengraph' => 'opengraph', 'twitter' => 'twitter', ]; /** * Helper property to define the social network meta field definitions - fields and their type. * * @var array */ private static $social_fields = [ 'title' => 'hidden', 'description' => 'hidden', 'image' => 'hidden', 'image-id' => 'hidden', ]; /** * Register our actions and filters. * * @return void */ public static function init() { foreach ( self::$social_networks as $option => $network ) { if ( WPSEO_Options::get( $option, false ) === true ) { foreach ( self::$social_fields as $box => $type ) { self::$meta_fields['social'][ $network . '-' . $box ] = [ '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', [] ); 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, [ 'sanitize_callback' => [ self::class, 'sanitize_post_meta' ] ] ); // Set the $fields_index property for efficiency. self::$fields_index[ self::$meta_prefix . $key ] = [ '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 ); self::filter_schema_article_types(); add_filter( 'update_post_metadata', [ self::class, 'remove_meta_if_default' ], 10, 5 ); add_filter( 'add_post_metadata', [ self::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 []; } $field_defs = self::$meta_fields[ $tab ]; switch ( $tab ) { case 'non-form': // Prevent non-form fields from being passed to forms. $field_defs = []; break; case 'advanced': global $post; if ( ! WPSEO_Capability_Utils::current_user_can( 'wpseo_edit_advanced_metadata' ) && WPSEO_Options::get( 'disableadvanced_meta' ) ) { return []; } $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 []; } /* 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 ); /* 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'] ); } if ( empty( $post->ID ) || ( ! empty( $post->ID ) && self::get_value( 'redirect', $post->ID ) === '' ) ) { unset( $field_defs['redirect'] ); } break; case 'schema': if ( ! WPSEO_Capability_Utils::current_user_can( 'wpseo_edit_advanced_metadata' ) && WPSEO_Options::get( 'disableadvanced_meta' ) ) { return []; } $field_defs['schema_page_type']['default'] = WPSEO_Options::get( 'schema-page-type-' . $post_type ); $article_helper = new Article_Helper(); if ( $article_helper->is_article_post_type( $post_type ) ) { $default_schema_article_type = WPSEO_Options::get( 'schema-article-type-' . $post_type ); /** This filter is documented in inc/options/class-wpseo-option-titles.php */ $allowed_article_types = apply_filters( 'wpseo_schema_article_types', Schema_Types::ARTICLE_TYPES ); if ( ! array_key_exists( $default_schema_article_type, $allowed_article_types ) ) { $default_schema_article_type = WPSEO_Options::get_default( 'wpseo_titles', 'schema-article-type-' . $post_type ); } $field_defs['schema_article_type']['default'] = $default_schema_article_type; } else { unset( $field_defs['schema_article_type'] ); } 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, [ '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'] === 'hidden' && $meta_key === self::$meta_prefix . 'meta-robots-adv' ): $clean = self::validate_meta_robots_adv( $meta_value ); break; case ( $field_def['type'] === 'url' || $meta_key === self::$meta_prefix . 'canonical' ): // Validate as url(-part). $url = WPSEO_Utils::sanitize_url( $meta_value ); if ( $url !== '' ) { $clean = $url; } break; case ( $field_def['type'] === 'upload' && in_array( $meta_key, [ self::$meta_prefix . 'opengraph-image', self::$meta_prefix . 'twitter-image' ], true ) ): // Validate as url. $url = WPSEO_Utils::sanitize_url( $meta_value, [ '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'] === 'hidden' && isset( $field_def['options'] ) ): // 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'] === '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( [ "\n", "\r", "\t", ' ' ], ' ', $meta_value ); $clean = WPSEO_Utils::sanitize_text_field( trim( $meta_value ) ); } break; case ( $field_def['type'] === 'multiselect' ): $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 !== [] ) { $meta_value = array_map( 'trim', $meta_value ); // Individual selected entries. $cleaning = []; foreach ( $meta_value as $value ) { if ( isset( $options[ $value ] ) ) { $cleaning[] = $value; } } if ( $cleaning !== [] ) { $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 bool|null 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 bool|null 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. $table_key = self::$meta_prefix . $key; // Populate the field_def using the field_index lookup array. $field_def = []; if ( isset( self::$fields_index[ $table_key ] ) ) { $field_def = self::$meta_fields[ self::$fields_index[ $table_key ]['subset'] ][ self::$fields_index[ $table_key ]['key'] ]; } // Check if we have a custom post meta entry. if ( isset( $custom[ $table_key ][0] ) ) { $unserialized = maybe_unserialize( $custom[ $table_key ][0] ); // Check if it is already unserialized. if ( $custom[ $table_key ][0] === $unserialized ) { return $custom[ $table_key ][0]; } // Check whether we need to unserialize it. 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 ] ) ) { // Update the default value to the current post type. switch ( $key ) { case 'schema_page_type': case 'schema_article_type': return ''; } return self::$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 delete the meta for. * * @return bool Whether the delete was successful or not. */ 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 !== [] ) { 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 !== [] ) { 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.}} */ $query = []; foreach ( self::$meta_fields as $subset => $field_group ) { foreach ( $field_group as $key => $field_def ) { if ( ! isset( $field_def['default_value'] ) ) { continue; } if ( isset( $field_def['options'] ) && is_array( $field_def['options'] ) && $field_def['options'] !== [] ) { $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 !== [] ) { // 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 !== [] ) { 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 === [] ) { return []; } 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 int $post_id The id of the post to which the keyword belongs. * * @return array */ public static function keyword_usage( $keyword, $post_id ) { if ( empty( $keyword ) ) { return []; } /** * The indexable repository. * * @var Indexable_Repository */ $repository = YoastSEO()->classes->get( Indexable_Repository::class ); $post_ids = $repository->query() ->select( 'object_id' ) ->where( 'primary_focus_keyword', $keyword ) ->where( 'object_type', 'post' ) ->where_not_equal( 'object_id', $post_id ) ->where_not_equal( 'post_status', 'trash' ) ->limit( 2 ) // Limit to 2 results to save time and resources. ->find_array(); // Get object_id from each subarray in $post_ids. $post_ids = ( is_array( $post_ids ) ) ? array_column( $post_ids, 'object_id' ) : []; /* * If Premium is installed, get the additional keywords as well. * We only check for the additional keywords if we've not already found two. * In that case there's no use for an additional query as we already know * that the keyword has been used multiple times before. */ if ( count( $post_ids ) < 2 ) { /** * Allows enhancing the array of posts' that share their focus keywords with the post's focus keywords. * * @param array $post_ids The array of posts' ids that share their related keywords with the post. * @param string $keyword The keyword to search for. * @param int $post_id The id of the post the keyword is associated to. */ $post_ids = apply_filters( 'wpseo_posts_for_focus_keyword', $post_ids, $keyword, $post_id ); } return $post_ids; } /** * Returns the post types for the given post ids. * * @param array $post_ids The post ids to get the post types for. * * @return array The post types. */ public static function post_types_for_ids( $post_ids ) { /** * The indexable repository. * * @var Indexable_Repository */ $repository = YoastSEO()->classes->get( Indexable_Repository::class ); // Check if post ids is not empty. if ( ! empty( $post_ids ) ) { // Get the post subtypes for the posts that share the keyword. $post_types = $repository->query() ->select( 'object_sub_type' ) ->where_in( 'object_id', $post_ids ) ->find_array(); // Get object_sub_type from each subarray in $post_ids. $post_types = array_column( $post_types, 'object_sub_type' ); } else { $post_types = []; } return $post_types; } /** * Filter the schema article types. * * @return void */ public static function filter_schema_article_types() { /** This filter is documented in inc/options/class-wpseo-option-titles.php */ self::$meta_fields['schema']['schema_article_type']['options'] = apply_filters( 'wpseo_schema_article_types', self::$meta_fields['schema']['schema_article_type']['options'] ); } }