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429 lines
13 KiB
PHP
429 lines
13 KiB
PHP
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<?php
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class WP_REST_Revisions_Controller extends WP_REST_Controller {
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private $parent_post_type;
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private $parent_controller;
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private $parent_base;
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public function __construct( $parent_post_type ) {
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$this->parent_post_type = $parent_post_type;
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$this->parent_controller = new WP_REST_Posts_Controller( $parent_post_type );
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$this->namespace = 'wp/v2';
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$this->rest_base = 'revisions';
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$post_type_object = get_post_type_object( $parent_post_type );
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$this->parent_base = ! empty( $post_type_object->rest_base ) ? $post_type_object->rest_base : $post_type_object->name;
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}
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/**
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* Register routes for revisions based on post types supporting revisions
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*
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* @access public
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*/
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public function register_routes() {
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register_rest_route( $this->namespace, '/' . $this->parent_base . '/(?P<parent>[\d]+)/' . $this->rest_base, array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_items' ),
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'permission_callback' => array( $this, 'get_items_permissions_check' ),
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'args' => $this->get_collection_params(),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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) );
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register_rest_route( $this->namespace, '/' . $this->parent_base . '/(?P<parent>[\d]+)/' . $this->rest_base . '/(?P<id>[\d]+)', array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_item' ),
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'permission_callback' => array( $this, 'get_item_permissions_check' ),
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'args' => array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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),
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),
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array(
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'methods' => WP_REST_Server::DELETABLE,
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'callback' => array( $this, 'delete_item' ),
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'permission_callback' => array( $this, 'delete_item_permissions_check' ),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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));
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}
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/**
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* Check if a given request has access to get revisions
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*
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* @access public
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*
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* @param WP_REST_Request $request Full data about the request.
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* @return WP_Error|boolean
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*/
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public function get_items_permissions_check( $request ) {
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$parent = $this->get_post( $request['parent'] );
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if ( ! $parent ) {
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return true;
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}
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$parent_post_type_obj = get_post_type_object( $parent->post_type );
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if ( ! current_user_can( $parent_post_type_obj->cap->edit_post, $parent->ID ) ) {
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return new WP_Error( 'rest_cannot_read', __( 'Sorry, you cannot view revisions of this post.' ), array( 'status' => rest_authorization_required_code() ) );
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}
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return true;
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}
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/**
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* Get a collection of revisions
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*
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* @access public
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*
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* @param WP_REST_Request $request Full data about the request.
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* @return WP_Error|WP_REST_Response
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*/
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public function get_items( $request ) {
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$parent = $this->get_post( $request['parent'] );
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if ( ! $request['parent'] || ! $parent || $this->parent_post_type !== $parent->post_type ) {
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return new WP_Error( 'rest_post_invalid_parent', __( 'Invalid post parent id.' ), array( 'status' => 404 ) );
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}
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$revisions = wp_get_post_revisions( $request['parent'] );
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$response = array();
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foreach ( $revisions as $revision ) {
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$data = $this->prepare_item_for_response( $revision, $request );
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$response[] = $this->prepare_response_for_collection( $data );
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}
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return rest_ensure_response( $response );
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}
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/**
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* Check if a given request has access to get a specific revision
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*
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* @access public
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*
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* @param WP_REST_Request $request Full data about the request.
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* @return WP_Error|boolean
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*/
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public function get_item_permissions_check( $request ) {
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return $this->get_items_permissions_check( $request );
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}
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/**
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* Get one revision from the collection
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*
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* @access public
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*
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* @param WP_REST_Request $request Full data about the request.
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* @return WP_Error|array
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*/
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public function get_item( $request ) {
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$parent = $this->get_post( $request['parent'] );
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if ( ! $request['parent'] || ! $parent || $this->parent_post_type !== $parent->post_type ) {
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return new WP_Error( 'rest_post_invalid_parent', __( 'Invalid post parent id.' ), array( 'status' => 404 ) );
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}
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$revision = $this->get_post( $request['id'] );
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if ( ! $revision || 'revision' !== $revision->post_type ) {
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return new WP_Error( 'rest_post_invalid_id', __( 'Invalid revision id.' ), array( 'status' => 404 ) );
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}
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$response = $this->prepare_item_for_response( $revision, $request );
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return rest_ensure_response( $response );
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}
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/**
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* Check if a given request has access to delete a revision
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*
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* @access public
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_Error|boolean
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*/
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public function delete_item_permissions_check( $request ) {
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$response = $this->get_items_permissions_check( $request );
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if ( ! $response || is_wp_error( $response ) ) {
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return $response;
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}
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$post = $this->get_post( $request['id'] );
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if ( ! $post ) {
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return new WP_Error( 'rest_post_invalid_id', __( 'Invalid revision id.' ), array( 'status' => 404 ) );
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}
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$post_type = get_post_type_object( 'revision' );
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return current_user_can( $post_type->cap->delete_post, $post->ID );
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}
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/**
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* Delete a single revision
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*
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* @access public
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_Error|boolean
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*/
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public function delete_item( $request ) {
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$result = wp_delete_post( $request['id'], true );
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/**
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* Fires after a revision is deleted via the REST API.
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*
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* @param (mixed) $result The revision object (if it was deleted or moved to the trash successfully)
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* or false (failure). If the revision was moved to to the trash, $result represents
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* its new state; if it was deleted, $result represents its state before deletion.
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* @param WP_REST_Request $request The request sent to the API.
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*/
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do_action( 'rest_delete_revision', $result, $request );
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if ( $result ) {
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return true;
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} else {
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return new WP_Error( 'rest_cannot_delete', __( 'The post cannot be deleted.' ), array( 'status' => 500 ) );
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}
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}
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/**
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* Prepare the revision for the REST response
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*
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* @access public
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*
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* @param WP_Post $post Post revision object.
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* @param WP_REST_Request $request Request object.
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* @return WP_REST_Response $response
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*/
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public function prepare_item_for_response( $post, $request ) {
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$schema = $this->get_item_schema();
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$data = array();
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if ( ! empty( $schema['properties']['author'] ) ) {
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$data['author'] = $post->post_author;
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}
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if ( ! empty( $schema['properties']['date'] ) ) {
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$data['date'] = $this->prepare_date_response( $post->post_date_gmt, $post->post_date );
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}
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if ( ! empty( $schema['properties']['date_gmt'] ) ) {
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$data['date_gmt'] = $this->prepare_date_response( $post->post_date_gmt );
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}
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if ( ! empty( $schema['properties']['id'] ) ) {
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$data['id'] = $post->ID;
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}
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if ( ! empty( $schema['properties']['modified'] ) ) {
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$data['modified'] = $this->prepare_date_response( $post->post_modified_gmt, $post->post_modified );
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}
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if ( ! empty( $schema['properties']['modified_gmt'] ) ) {
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$data['modified_gmt'] = $this->prepare_date_response( $post->post_modified_gmt );
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}
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if ( ! empty( $schema['properties']['parent'] ) ) {
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$data['parent'] = (int) $post->post_parent;
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}
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if ( ! empty( $schema['properties']['slug'] ) ) {
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$data['slug'] = $post->post_name;
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}
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if ( ! empty( $schema['properties']['guid'] ) ) {
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$data['guid'] = array(
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/** This filter is documented in wp-includes/post-template.php */
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'rendered' => apply_filters( 'get_the_guid', $post->guid ),
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'raw' => $post->guid,
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);
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}
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if ( ! empty( $schema['properties']['title'] ) ) {
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$data['title'] = array(
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'raw' => $post->post_title,
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'rendered' => get_the_title( $post->ID ),
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);
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}
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if ( ! empty( $schema['properties']['content'] ) ) {
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$data['content'] = array(
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'raw' => $post->post_content,
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/** This filter is documented in wp-includes/post-template.php */
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'rendered' => apply_filters( 'the_content', $post->post_content ),
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);
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}
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if ( ! empty( $schema['properties']['excerpt'] ) ) {
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$data['excerpt'] = array(
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'raw' => $post->post_excerpt,
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'rendered' => $this->prepare_excerpt_response( $post->post_excerpt, $post ),
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);
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}
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$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
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$data = $this->add_additional_fields_to_object( $data, $request );
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$data = $this->filter_response_by_context( $data, $context );
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$response = rest_ensure_response( $data );
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if ( ! empty( $data['parent'] ) ) {
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$response->add_link( 'parent', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->parent_base, $data['parent'] ) ) );
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}
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/**
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* Filter a revision returned from the API.
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*
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* Allows modification of the revision right before it is returned.
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*
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* @param WP_REST_Response $response The response object.
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* @param WP_Post $post The original revision object.
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* @param WP_REST_Request $request Request used to generate the response.
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*/
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return apply_filters( 'rest_prepare_revision', $response, $post, $request );
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}
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/**
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* Check the post_date_gmt or modified_gmt and prepare any post or
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* modified date for single post output.
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*
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* @access protected
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*
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* @param string $date_gmt GMT publication time.
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* @param string|null $date Optional, default is null. Local publication time.
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* @return string|null ISO8601/RFC3339 formatted datetime.
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*/
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protected function prepare_date_response( $date_gmt, $date = null ) {
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if ( '0000-00-00 00:00:00' === $date_gmt ) {
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return null;
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}
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if ( isset( $date ) ) {
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return mysql_to_rfc3339( $date );
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}
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return mysql_to_rfc3339( $date_gmt );
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}
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/**
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* Get the revision's schema, conforming to JSON Schema
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*
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* @access public
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*
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* @return array
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*/
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public function get_item_schema() {
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$schema = array(
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'$schema' => 'http://json-schema.org/draft-04/schema#',
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'title' => "{$this->parent_post_type}-revision",
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'type' => 'object',
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/*
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* Base properties for every Revision
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*/
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'properties' => array(
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'author' => array(
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'description' => __( 'The id for the author of the object.' ),
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'type' => 'integer',
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'context' => array( 'view', 'edit', 'embed' ),
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),
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'date' => array(
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'description' => __( 'The date the object was published.' ),
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'type' => 'string',
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'format' => 'date-time',
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'context' => array( 'view', 'edit', 'embed' ),
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),
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'date_gmt' => array(
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'description' => __( 'The date the object was published, as GMT.' ),
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'type' => 'string',
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'format' => 'date-time',
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'context' => array( 'view', 'edit' ),
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),
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'guid' => array(
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'description' => __( 'GUID for the object, as it exists in the database.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit' ),
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),
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'id' => array(
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'description' => __( 'Unique identifier for the object.' ),
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'type' => 'integer',
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'context' => array( 'view', 'edit', 'embed' ),
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),
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'modified' => array(
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'description' => __( 'The date the object was last modified.' ),
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'type' => 'string',
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'format' => 'date-time',
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'context' => array( 'view', 'edit' ),
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),
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'modified_gmt' => array(
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'description' => __( 'The date the object was last modified, as GMT.' ),
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'type' => 'string',
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'format' => 'date-time',
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'context' => array( 'view', 'edit' ),
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),
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'parent' => array(
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'description' => __( 'The id for the parent of the object.' ),
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'type' => 'integer',
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'context' => array( 'view', 'edit', 'embed' ),
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),
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'slug' => array(
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'description' => __( 'An alphanumeric identifier for the object unique to its type.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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),
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),
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);
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$parent_schema = $this->parent_controller->get_item_schema();
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if ( ! empty( $parent_schema['properties']['title'] ) ) {
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$schema['properties']['title'] = $parent_schema['properties']['title'];
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}
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if ( ! empty( $parent_schema['properties']['content'] ) ) {
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$schema['properties']['content'] = $parent_schema['properties']['content'];
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}
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if ( ! empty( $parent_schema['properties']['excerpt'] ) ) {
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$schema['properties']['excerpt'] = $parent_schema['properties']['excerpt'];
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}
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if ( ! empty( $parent_schema['properties']['guid'] ) ) {
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$schema['properties']['guid'] = $parent_schema['properties']['guid'];
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}
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return $this->add_additional_fields_schema( $schema );
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}
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/**
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* Get the query params for collections
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*
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* @access public
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*
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* @return array
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*/
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public function get_collection_params() {
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return array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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);
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}
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/**
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* Check the post excerpt and prepare it for single post output.
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*
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* @access protected
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*
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* @param string $excerpt The post excerpt.
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* @param WP_Post $post Post revision object.
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* @return string|null $excerpt
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*/
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protected function prepare_excerpt_response( $excerpt, $post ) {
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/** This filter is documented in wp-includes/post-template.php */
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||
|
$excerpt = apply_filters( 'the_excerpt', $excerpt, $post );
|
||
|
|
||
|
if ( empty( $excerpt ) ) {
|
||
|
return '';
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||
|
}
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||
|
|
||
|
return $excerpt;
|
||
|
}
|
||
|
}
|