REST API: Support pagination, order, search and other common query parameters for revisions.
The original REST API revisions controller relied on `wp_get_post_revisions()`, getting all revisions of a post without any possibility to restrict the result. This changeset replaces that function call with a proper `WP_Query` setup, replicating how `wp_get_post_revisions()` works while offering parameters to alter the default behavior. Props adamsilverstein, birgire, flixos90. Merges [43584-43586], [43647] to the 4.9 branch. Fixes #40510. Built from https://develop.svn.wordpress.org/branches/4.9@43648 git-svn-id: http://core.svn.wordpress.org/branches/4.9@43477 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov
parent
6793aad486
commit
a5c8e5caa3
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@ -864,7 +864,7 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
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*
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* @param string $value The query_var value.
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*/
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$query_args[ $key ] = apply_filters( "rest_query_var-{$key}", $value );
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$query_args[ $key ] = apply_filters( "rest_query_var-{$key}", $value ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
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}
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if ( 'post' !== $this->post_type || ! isset( $query_args['ignore_sticky_posts'] ) ) {
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@ -197,14 +197,122 @@ class WP_REST_Revisions_Controller extends WP_REST_Controller {
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return $parent;
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}
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$revisions = wp_get_post_revisions( $request['parent'] );
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// Ensure a search string is set in case the orderby is set to 'relevance'.
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if ( ! empty( $request['orderby'] ) && 'relevance' === $request['orderby'] && empty( $request['search'] ) ) {
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return new WP_Error( 'rest_no_search_term_defined', __( 'You need to define a search term to order by relevance.' ), array( 'status' => 400 ) );
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}
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// Ensure an include parameter is set in case the orderby is set to 'include'.
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if ( ! empty( $request['orderby'] ) && 'include' === $request['orderby'] && empty( $request['include'] ) ) {
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return new WP_Error( 'rest_orderby_include_missing_include', __( 'You need to define an include parameter to order by include.' ), array( 'status' => 400 ) );
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}
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if ( wp_revisions_enabled( $parent ) ) {
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$registered = $this->get_collection_params();
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$args = array(
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'post_parent' => $parent->ID,
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'post_type' => 'revision',
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'post_status' => 'inherit',
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'posts_per_page' => -1,
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'orderby' => 'date ID',
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'order' => 'DESC',
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'suppress_filters' => true,
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);
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$parameter_mappings = array(
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'exclude' => 'post__not_in',
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'include' => 'post__in',
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'offset' => 'offset',
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'order' => 'order',
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'orderby' => 'orderby',
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'page' => 'paged',
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'per_page' => 'posts_per_page',
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'search' => 's',
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);
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foreach ( $parameter_mappings as $api_param => $wp_param ) {
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if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) {
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$args[ $wp_param ] = $request[ $api_param ];
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}
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}
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// For backward-compatibility, 'date' needs to resolve to 'date ID'.
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if ( isset( $args['orderby'] ) && 'date' === $args['orderby'] ) {
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$args['orderby'] = 'date ID';
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}
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/** This filter is documented in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php */
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$args = apply_filters( 'rest_revision_query', $args, $request );
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$query_args = $this->prepare_items_query( $args, $request );
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$revisions_query = new WP_Query();
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$revisions = $revisions_query->query( $query_args );
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$offset = isset( $query_args['offset'] ) ? (int) $query_args['offset'] : 0;
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$page = (int) $query_args['paged'];
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$total_revisions = $revisions_query->found_posts;
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if ( $total_revisions < 1 ) {
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// Out-of-bounds, run the query again without LIMIT for total count.
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unset( $query_args['paged'], $query_args['offset'] );
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$count_query = new WP_Query();
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$count_query->query( $query_args );
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$total_revisions = $count_query->found_posts;
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}
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if ( $revisions_query->query_vars['posts_per_page'] > 0 ) {
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$max_pages = ceil( $total_revisions / (int) $revisions_query->query_vars['posts_per_page'] );
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} else {
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$max_pages = $total_revisions > 0 ? 1 : 0;
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}
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if ( $total_revisions > 0 ) {
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if ( $offset >= $total_revisions ) {
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return new WP_Error( 'rest_revision_invalid_offset_number', __( 'The offset number requested is larger than or equal to the number of available revisions.' ), array( 'status' => 400 ) );
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} elseif ( ! $offset && $page > $max_pages ) {
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return new WP_Error( 'rest_revision_invalid_page_number', __( 'The page number requested is larger than the number of pages available.' ), array( 'status' => 400 ) );
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}
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}
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} else {
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$revisions = array();
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$total_revisions = 0;
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$max_pages = 0;
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$page = (int) $request['page'];
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}
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$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( $response );
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$response = rest_ensure_response( $response );
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$response->header( 'X-WP-Total', (int) $total_revisions );
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$response->header( 'X-WP-TotalPages', (int) $max_pages );
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$request_params = $request->get_query_params();
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$base = add_query_arg( $request_params, rest_url( sprintf( '%s/%s/%d/%s', $this->namespace, $this->parent_base, $request['parent'], $this->rest_base ) ) );
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if ( $page > 1 ) {
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$prev_page = $page - 1;
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if ( $prev_page > $max_pages ) {
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$prev_page = $max_pages;
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}
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$prev_link = add_query_arg( 'page', $prev_page, $base );
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$response->link_header( 'prev', $prev_link );
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}
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if ( $max_pages > $page ) {
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$next_page = $page + 1;
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$next_link = add_query_arg( 'page', $next_page, $base );
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$response->link_header( 'next', $next_link );
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}
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return $response;
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}
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/**
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@ -317,6 +425,41 @@ class WP_REST_Revisions_Controller extends WP_REST_Controller {
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return $response;
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}
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/**
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* Determines the allowed query_vars for a get_items() response and prepares
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* them for WP_Query.
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*
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* @since 5.0.0
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*
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* @param array $prepared_args Optional. Prepared WP_Query arguments. Default empty array.
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* @param WP_REST_Request $request Optional. Full details about the request.
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* @return array Items query arguments.
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*/
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protected function prepare_items_query( $prepared_args = array(), $request = null ) {
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$query_args = array();
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foreach ( $prepared_args as $key => $value ) {
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/** This filter is documented in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php */
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$query_args[ $key ] = apply_filters( "rest_query_var-{$key}", $value ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
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}
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// Map to proper WP_Query orderby param.
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if ( isset( $query_args['orderby'] ) && isset( $request['orderby'] ) ) {
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$orderby_mappings = array(
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'id' => 'ID',
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'include' => 'post__in',
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'slug' => 'post_name',
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'include_slugs' => 'post_name__in',
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);
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if ( isset( $orderby_mappings[ $request['orderby'] ] ) ) {
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$query_args['orderby'] = $orderby_mappings[ $request['orderby'] ];
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}
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}
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return $query_args;
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}
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/**
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* Prepares the revision for the REST response.
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*
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@ -537,9 +680,58 @@ class WP_REST_Revisions_Controller extends WP_REST_Controller {
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* @return array Collection parameters.
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*/
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public function get_collection_params() {
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return array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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$query_params = parent::get_collection_params();
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$query_params['context']['default'] = 'view';
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unset( $query_params['per_page']['default'] );
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$query_params['exclude'] = array(
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'description' => __( 'Ensure result set excludes specific IDs.' ),
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'type' => 'array',
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'items' => array(
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'type' => 'integer',
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),
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'default' => array(),
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);
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$query_params['include'] = array(
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'description' => __( 'Limit result set to specific IDs.' ),
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'type' => 'array',
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'items' => array(
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'type' => 'integer',
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),
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'default' => array(),
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);
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$query_params['offset'] = array(
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'description' => __( 'Offset the result set by a specific number of items.' ),
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'type' => 'integer',
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);
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$query_params['order'] = array(
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'description' => __( 'Order sort attribute ascending or descending.' ),
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'type' => 'string',
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'default' => 'desc',
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'enum' => array( 'asc', 'desc' ),
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);
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$query_params['orderby'] = array(
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'description' => __( 'Sort collection by object attribute.' ),
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'type' => 'string',
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'default' => 'date',
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'enum' => array(
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'date',
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'id',
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'include',
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'relevance',
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'slug',
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'include_slugs',
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'title',
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),
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);
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return $query_params;
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}
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/**
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@ -4,7 +4,7 @@
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*
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* @global string $wp_version
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*/
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$wp_version = '4.9.9-alpha-43646';
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$wp_version = '4.9.9-alpha-43648';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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