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📁 ..	-	2025-09-05 13:25
📄 class-wp-rest-comment-meta-fields.php <?php /** * REST API: WP_REST_Comment_Meta_Fields class * * @package WordPress * @subpackage REST_API * @since 4.7.0 / /* * Core class to manage comment meta via the REST API. * * @since 4.7.0 * * @see WP_REST_Meta_Fields / class WP_REST_Comment_Meta_Fields extends WP_REST_Meta_Fields { /* * Retrieves the comment type for comment meta. * * @since 4.7.0 * * @return string The meta type. / protected function get_meta_type() { return 'comment'; } /* * Retrieves the comment meta subtype. * * @since 4.9.8 * * @return string 'comment' There are no subtypes. / protected function get_meta_subtype() { return 'comment'; } /* * Retrieves the type for register_rest_field() in the context of comments. * * @since 4.7.0 * * @return string The REST field type. */ public function get_rest_field_type() { return 'comment'; } }	895 B	2025-09-05 13:25
📄 class-wp-rest-meta-fields.php <?php /** * REST API: WP_REST_Meta_Fields class * * @package WordPress * @subpackage REST_API * @since 4.7.0 / /* * Core class to manage meta values for an object via the REST API. * * @since 4.7.0 / #[AllowDynamicProperties] abstract class WP_REST_Meta_Fields { /* * Retrieves the object meta type. * * @since 4.7.0 * * @return string One of 'post', 'comment', 'term', 'user', or anything * else supported by `_get_meta_table()`. / abstract protected function get_meta_type(); /* * Retrieves the object meta subtype. * * @since 4.9.8 * * @return string Subtype for the meta type, or empty string if no specific subtype. / protected function get_meta_subtype() { return ''; } /* * Retrieves the object type for register_rest_field(). * * @since 4.7.0 * * @return string The REST field type, such as post type name, taxonomy name, 'comment', or `user`. / abstract protected function get_rest_field_type(); /* * Registers the meta field. * * @since 4.7.0 * @deprecated 5.6.0 * * @see register_rest_field() / public function register_field() { _deprecated_function( __METHOD__, '5.6.0' ); register_rest_field( $this->get_rest_field_type(), 'meta', array( 'get_callback' => array( $this, 'get_value' ), 'update_callback' => array( $this, 'update_value' ), 'schema' => $this->get_field_schema(), ) ); } /* * Retrieves the meta field value. * * @since 4.7.0 * * @param int $object_id Object ID to fetch meta for. * @param WP_REST_Request $request Full details about the request. * @return array Array containing the meta values keyed by name. / public function get_value( $object_id, $request ) { $fields = $this->get_registered_fields(); $response = array(); foreach ( $fields as $meta_key => $args ) { $name = $args['name']; $all_values = get_metadata( $this->get_meta_type(), $object_id, $meta_key, false ); if ( $args['single'] ) { if ( empty( $all_values ) ) { $value = $args['schema']['default']; } else { $value = $all_values[0]; } $value = $this->prepare_value_for_response( $value, $request, $args ); } else { $value = array(); if ( is_array( $all_values ) ) { foreach ( $all_values as $row ) { $value[] = $this->prepare_value_for_response( $row, $request, $args ); } } } $response[ $name ] = $value; } return $response; } /* * Prepares a meta value for a response. * * This is required because some native types cannot be stored correctly * in the database, such as booleans. We need to cast back to the relevant * type before passing back to JSON. * * @since 4.7.0 * * @param mixed $value Meta value to prepare. * @param WP_REST_Request $request Current request object. * @param array $args Options for the field. * @return mixed Prepared value. / protected function prepare_value_for_response( $value, $request, $args ) { if ( ! empty( $args['prepare_callback'] ) ) { $value = call_user_func( $args['prepare_callback'], $value, $request, $args ); } return $value; } /* * Updates meta values. * * @since 4.7.0 * * @param array $meta Array of meta parsed from the request. * @param int $object_id Object ID to fetch meta for. * @return null\|WP_Error Null on success, WP_Error object on failure. / public function update_value( $meta, $object_id ) { $fields = $this->get_registered_fields(); $error = new WP_Error(); foreach ( $fields as $meta_key => $args ) { $name = $args['name']; if ( ! array_key_exists( $name, $meta ) ) { continue; } $value = $meta[ $name ]; / * A null value means reset the field, which is essentially deleting it * from the database and then relying on the default value. * * Non-single meta can also be removed by passing an empty array. / if ( is_null( $value ) \|\| ( array() === $value && ! $args['single'] ) ) { $args = $this->get_registered_fields()[ $meta_key ]; if ( $args['single'] ) { $current = get_metadata( $this->get_meta_type(), $object_id, $meta_key, true ); if ( is_wp_error( rest_validate_value_from_schema( $current, $args['schema'] ) ) ) { $error->add( 'rest_invalid_stored_value', / translators: %s: Custom field key. / sprintf( __( 'The %s property has an invalid stored value, and cannot be updated to null.' ), $name ), array( 'status' => 500 ) ); continue; } } $result = $this->delete_meta_value( $object_id, $meta_key, $name ); if ( is_wp_error( $result ) ) { $error->merge_from( $result ); } continue; } if ( ! $args['single'] && is_array( $value ) && count( array_filter( $value, 'is_null' ) ) ) { $error->add( 'rest_invalid_stored_value', / translators: %s: Custom field key. / sprintf( __( 'The %s property has an invalid stored value, and cannot be updated to null.' ), $name ), array( 'status' => 500 ) ); continue; } $is_valid = rest_validate_value_from_schema( $value, $args['schema'], 'meta.' . $name ); if ( is_wp_error( $is_valid ) ) { $is_valid->add_data( array( 'status' => 400 ) ); $error->merge_from( $is_valid ); continue; } $value = rest_sanitize_value_from_schema( $value, $args['schema'] ); if ( $args['single'] ) { $result = $this->update_meta_value( $object_id, $meta_key, $name, $value ); } else { $result = $this->update_multi_meta_value( $object_id, $meta_key, $name, $value ); } if ( is_wp_error( $result ) ) { $error->merge_from( $result ); continue; } } if ( $error->has_errors() ) { return $error; } return null; } /* * Deletes a meta value for an object. * * @since 4.7.0 * * @param int $object_id Object ID the field belongs to. * @param string $meta_key Key for the field. * @param string $name Name for the field that is exposed in the REST API. * @return true\|WP_Error True if meta field is deleted, WP_Error otherwise. / protected function delete_meta_value( $object_id, $meta_key, $name ) { $meta_type = $this->get_meta_type(); if ( ! current_user_can( "delete_{$meta_type}_meta", $object_id, $meta_key ) ) { return new WP_Error( 'rest_cannot_delete', / translators: %s: Custom field key. / sprintf( __( 'Sorry, you are not allowed to edit the %s custom field.' ), $name ), array( 'key' => $name, 'status' => rest_authorization_required_code(), ) ); } if ( null === get_metadata_raw( $meta_type, $object_id, wp_slash( $meta_key ) ) ) { return true; } if ( ! delete_metadata( $meta_type, $object_id, wp_slash( $meta_key ) ) ) { return new WP_Error( 'rest_meta_database_error', __( 'Could not delete meta value from database.' ), array( 'key' => $name, 'status' => WP_Http::INTERNAL_SERVER_ERROR, ) ); } return true; } /* * Updates multiple meta values for an object. * * Alters the list of values in the database to match the list of provided values. * * @since 4.7.0 * @since 6.7.0 Stores values into DB even if provided registered default value. * * @param int $object_id Object ID to update. * @param string $meta_key Key for the custom field. * @param string $name Name for the field that is exposed in the REST API. * @param array $values List of values to update to. * @return true\|WP_Error True if meta fields are updated, WP_Error otherwise. / protected function update_multi_meta_value( $object_id, $meta_key, $name, $values ) { $meta_type = $this->get_meta_type(); if ( ! current_user_can( "edit_{$meta_type}_meta", $object_id, $meta_key ) ) { return new WP_Error( 'rest_cannot_update', / translators: %s: Custom field key. / sprintf( __( 'Sorry, you are not allowed to edit the %s custom field.' ), $name ), array( 'key' => $name, 'status' => rest_authorization_required_code(), ) ); } $current_values = get_metadata_raw( $meta_type, $object_id, $meta_key, false ); $subtype = get_object_subtype( $meta_type, $object_id ); if ( ! is_array( $current_values ) ) { $current_values = array(); } $to_remove = $current_values; $to_add = $values; foreach ( $to_add as $add_key => $value ) { $remove_keys = array_keys( array_filter( $current_values, function ( $stored_value ) use ( $meta_key, $subtype, $value ) { return $this->is_meta_value_same_as_stored_value( $meta_key, $subtype, $stored_value, $value ); } ) ); if ( empty( $remove_keys ) ) { continue; } if ( count( $remove_keys ) > 1 ) { // To remove, we need to remove first, then add, so don't touch. continue; } $remove_key = $remove_keys[0]; unset( $to_remove[ $remove_key ] ); unset( $to_add[ $add_key ] ); } / * `delete_metadata` removes _all_ instances of the value, so only call once. Otherwise, * `delete_metadata` will return false for subsequent calls of the same value. * Use serialization to produce a predictable string that can be used by array_unique. / $to_remove = array_map( 'maybe_unserialize', array_unique( array_map( 'maybe_serialize', $to_remove ) ) ); foreach ( $to_remove as $value ) { if ( ! delete_metadata( $meta_type, $object_id, wp_slash( $meta_key ), wp_slash( $value ) ) ) { return new WP_Error( 'rest_meta_database_error', / translators: %s: Custom field key. / sprintf( __( 'Could not update the meta value of %s in database.' ), $meta_key ), array( 'key' => $name, 'status' => WP_Http::INTERNAL_SERVER_ERROR, ) ); } } foreach ( $to_add as $value ) { if ( ! add_metadata( $meta_type, $object_id, wp_slash( $meta_key ), wp_slash( $value ) ) ) { return new WP_Error( 'rest_meta_database_error', / translators: %s: Custom field key. / sprintf( __( 'Could not update the meta value of %s in database.' ), $meta_key ), array( 'key' => $name, 'status' => WP_Http::INTERNAL_SERVER_ERROR, ) ); } } return true; } /* * Updates a meta value for an object. * * @since 4.7.0 * @since 6.7.0 Stores values into DB even if provided registered default value. * * @param int $object_id Object ID to update. * @param string $meta_key Key for the custom field. * @param string $name Name for the field that is exposed in the REST API. * @param mixed $value Updated value. * @return true\|WP_Error True if the meta field was updated, WP_Error otherwise. / protected function update_meta_value( $object_id, $meta_key, $name, $value ) { $meta_type = $this->get_meta_type(); // Do the exact same check for a duplicate value as in update_metadata() to avoid update_metadata() returning false. $old_value = get_metadata_raw( $meta_type, $object_id, $meta_key ); $subtype = get_object_subtype( $meta_type, $object_id ); if ( is_array( $old_value ) && 1 === count( $old_value ) && $this->is_meta_value_same_as_stored_value( $meta_key, $subtype, $old_value[0], $value ) ) { return true; } if ( ! current_user_can( "edit_{$meta_type}_meta", $object_id, $meta_key ) ) { return new WP_Error( 'rest_cannot_update', / translators: %s: Custom field key. / sprintf( __( 'Sorry, you are not allowed to edit the %s custom field.' ), $name ), array( 'key' => $name, 'status' => rest_authorization_required_code(), ) ); } if ( ! update_metadata( $meta_type, $object_id, wp_slash( $meta_key ), wp_slash( $value ) ) ) { return new WP_Error( 'rest_meta_database_error', / translators: %s: Custom field key. / sprintf( __( 'Could not update the meta value of %s in database.' ), $meta_key ), array( 'key' => $name, 'status' => WP_Http::INTERNAL_SERVER_ERROR, ) ); } return true; } /* * Checks if the user provided value is equivalent to a stored value for the given meta key. * * @since 5.5.0 * * @param string $meta_key The meta key being checked. * @param string $subtype The object subtype. * @param mixed $stored_value The currently stored value retrieved from get_metadata(). * @param mixed $user_value The value provided by the user. * @return bool / protected function is_meta_value_same_as_stored_value( $meta_key, $subtype, $stored_value, $user_value ) { $args = $this->get_registered_fields()[ $meta_key ]; $sanitized = sanitize_meta( $meta_key, $user_value, $this->get_meta_type(), $subtype ); if ( in_array( $args['type'], array( 'string', 'number', 'integer', 'boolean' ), true ) ) { // The return value of get_metadata will always be a string for scalar types. $sanitized = (string) $sanitized; } return $sanitized === $stored_value; } /* * Retrieves all the registered meta fields. * * @since 4.7.0 * * @return array Registered fields. / protected function get_registered_fields() { $registered = array(); $meta_type = $this->get_meta_type(); $meta_subtype = $this->get_meta_subtype(); $meta_keys = get_registered_meta_keys( $meta_type ); if ( ! empty( $meta_subtype ) ) { $meta_keys = array_merge( $meta_keys, get_registered_meta_keys( $meta_type, $meta_subtype ) ); } foreach ( $meta_keys as $name => $args ) { if ( empty( $args['show_in_rest'] ) ) { continue; } $rest_args = array(); if ( is_array( $args['show_in_rest'] ) ) { $rest_args = $args['show_in_rest']; } $default_args = array( 'name' => $name, 'single' => $args['single'], 'type' => ! empty( $args['type'] ) ? $args['type'] : null, 'schema' => array(), 'prepare_callback' => array( $this, 'prepare_value' ), ); $default_schema = array( 'type' => $default_args['type'], 'title' => empty( $args['label'] ) ? '' : $args['label'], 'description' => empty( $args['description'] ) ? '' : $args['description'], 'default' => isset( $args['default'] ) ? $args['default'] : null, ); $rest_args = array_merge( $default_args, $rest_args ); $rest_args['schema'] = array_merge( $default_schema, $rest_args['schema'] ); $type = ! empty( $rest_args['type'] ) ? $rest_args['type'] : null; $type = ! empty( $rest_args['schema']['type'] ) ? $rest_args['schema']['type'] : $type; if ( null === $rest_args['schema']['default'] ) { $rest_args['schema']['default'] = static::get_empty_value_for_type( $type ); } $rest_args['schema'] = rest_default_additional_properties_to_false( $rest_args['schema'] ); if ( ! in_array( $type, array( 'string', 'boolean', 'integer', 'number', 'array', 'object' ), true ) ) { continue; } if ( empty( $rest_args['single'] ) ) { $rest_args['schema'] = array( 'type' => 'array', 'items' => $rest_args['schema'], ); } $registered[ $name ] = $rest_args; } return $registered; } /* * Retrieves the object's meta schema, conforming to JSON Schema. * * @since 4.7.0 * * @return array Field schema data. / public function get_field_schema() { $fields = $this->get_registered_fields(); $schema = array( 'description' => __( 'Meta fields.' ), 'type' => 'object', 'context' => array( 'view', 'edit' ), 'properties' => array(), 'arg_options' => array( 'sanitize_callback' => null, 'validate_callback' => array( $this, 'check_meta_is_array' ), ), ); foreach ( $fields as $args ) { $schema['properties'][ $args['name'] ] = $args['schema']; } return $schema; } /* * Prepares a meta value for output. * * Default preparation for meta fields. Override by passing the * `prepare_callback` in your `show_in_rest` options. * * @since 4.7.0 * * @param mixed $value Meta value from the database. * @param WP_REST_Request $request Request object. * @param array $args REST-specific options for the meta key. * @return mixed Value prepared for output. If a non-JsonSerializable object, null. / public static function prepare_value( $value, $request, $args ) { if ( $args['single'] ) { $schema = $args['schema']; } else { $schema = $args['schema']['items']; } if ( '' === $value && in_array( $schema['type'], array( 'boolean', 'integer', 'number' ), true ) ) { $value = static::get_empty_value_for_type( $schema['type'] ); } if ( is_wp_error( rest_validate_value_from_schema( $value, $schema ) ) ) { return null; } return rest_sanitize_value_from_schema( $value, $schema ); } /* * Check the 'meta' value of a request is an associative array. * * @since 4.7.0 * * @param mixed $value The meta value submitted in the request. * @param WP_REST_Request $request Full details about the request. * @param string $param The parameter name. * @return array\|false The meta array, if valid, false otherwise. / public function check_meta_is_array( $value, $request, $param ) { if ( ! is_array( $value ) ) { return false; } return $value; } /* * Recursively add additionalProperties = false to all objects in a schema if no additionalProperties setting * is specified. * * This is needed to restrict properties of objects in meta values to only * registered items, as the REST API will allow additional properties by * default. * * @since 5.3.0 * @deprecated 5.6.0 Use rest_default_additional_properties_to_false() instead. * * @param array $schema The schema array. * @return array / protected function default_additional_properties_to_false( $schema ) { _deprecated_function( __METHOD__, '5.6.0', 'rest_default_additional_properties_to_false()' ); return rest_default_additional_properties_to_false( $schema ); } /* * Gets the empty value for a schema type. * * @since 5.3.0 * * @param string $type The schema type. * @return mixed */ protected static function get_empty_value_for_type( $type ) { switch ( $type ) { case 'string': return ''; case 'boolean': return false; case 'integer': return 0; case 'number': return 0.0; case 'array': case 'object': return array(); default: return null; } } }	18.08 KB	2025-09-05 13:25
📄 class-wp-rest-post-meta-fields.php <?php /** * REST API: WP_REST_Post_Meta_Fields class * * @package WordPress * @subpackage REST_API * @since 4.7.0 / /* * Core class used to manage meta values for posts via the REST API. * * @since 4.7.0 * * @see WP_REST_Meta_Fields / class WP_REST_Post_Meta_Fields extends WP_REST_Meta_Fields { /* * Post type to register fields for. * * @since 4.7.0 * @var string / protected $post_type; /* * Constructor. * * @since 4.7.0 * * @param string $post_type Post type to register fields for. / public function __construct( $post_type ) { $this->post_type = $post_type; } /* * Retrieves the post meta type. * * @since 4.7.0 * * @return string The meta type. / protected function get_meta_type() { return 'post'; } /* * Retrieves the post meta subtype. * * @since 4.9.8 * * @return string Subtype for the meta type, or empty string if no specific subtype. / protected function get_meta_subtype() { return $this->post_type; } /* * Retrieves the type for register_rest_field(). * * @since 4.7.0 * * @see register_rest_field() * * @return string The REST field type. */ public function get_rest_field_type() { return $this->post_type; } }	1.21 KB	2025-09-05 13:25
📄 class-wp-rest-term-meta-fields.php <?php /** * REST API: WP_REST_Term_Meta_Fields class * * @package WordPress * @subpackage REST_API * @since 4.7.0 / /* * Core class used to manage meta values for terms via the REST API. * * @since 4.7.0 * * @see WP_REST_Meta_Fields / class WP_REST_Term_Meta_Fields extends WP_REST_Meta_Fields { /* * Taxonomy to register fields for. * * @since 4.7.0 * @var string / protected $taxonomy; /* * Constructor. * * @since 4.7.0 * * @param string $taxonomy Taxonomy to register fields for. / public function __construct( $taxonomy ) { $this->taxonomy = $taxonomy; } /* * Retrieves the term meta type. * * @since 4.7.0 * * @return string The meta type. / protected function get_meta_type() { return 'term'; } /* * Retrieves the term meta subtype. * * @since 4.9.8 * * @return string Subtype for the meta type, or empty string if no specific subtype. / protected function get_meta_subtype() { return $this->taxonomy; } /* * Retrieves the type for register_rest_field(). * * @since 4.7.0 * * @return string The REST field type. */ public function get_rest_field_type() { return 'post_tag' === $this->taxonomy ? 'tag' : $this->taxonomy; } }	1.21 KB	2025-09-05 13:25
📄 class-wp-rest-user-meta-fields.php <?php /** * REST API: WP_REST_User_Meta_Fields class * * @package WordPress * @subpackage REST_API * @since 4.7.0 / /* * Core class used to manage meta values for users via the REST API. * * @since 4.7.0 * * @see WP_REST_Meta_Fields / class WP_REST_User_Meta_Fields extends WP_REST_Meta_Fields { /* * Retrieves the user meta type. * * @since 4.7.0 * * @return string The user meta type. / protected function get_meta_type() { return 'user'; } /* * Retrieves the user meta subtype. * * @since 4.9.8 * * @return string 'user' There are no subtypes. / protected function get_meta_subtype() { return 'user'; } /* * Retrieves the type for register_rest_field(). * * @since 4.7.0 * * @return string The user REST field type. */ public function get_rest_field_type() { return 'user'; } }	856 B	2025-09-05 13:25

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