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<?php
/**
* Reusable blocks REST API: WP_REST_Blocks_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 5.0.0
*/
/**
* Controller which provides a REST endpoint for the editor to read, create,
* edit and delete reusable blocks. Blocks are stored as posts with the wp_block
* post type.
*
* @since 5.0.0
*
* @see WP_REST_Posts_Controller
* @see WP_REST_Controller
*/
class WP_REST_Blocks_Controller extends WP_REST_Posts_Controller {
/**
* Checks if a block can be read.
*
* @since 5.0.0
*
* @param object $post Post object that backs the block.
* @return bool Whether the block can be read.
*/
public function check_read_permission( $post ) {
// Ensure that the user is logged in and has the read_blocks capability.
$post_type = get_post_type_object( $post->post_type );
if ( ! current_user_can( $post_type->cap->read_post, $post->ID ) ) {
return false;
}
return parent::check_read_permission( $post );
}
/**
* Filters a response based on the context defined in the schema.
*
* @since 5.0.0
*
* @param array $data Response data to fiter.
* @param string $context Context defined in the schema.
* @return array Filtered response.
*/
public function filter_response_by_context( $data, $context ) {
$data = parent::filter_response_by_context( $data, $context );
/*
* Remove `title.rendered` and `content.rendered` from the response. It
* doesn't make sense for a reusable block to have rendered content on its
* own, since rendering a block requires it to be inside a post or a page.
*/
unset( $data['title']['rendered'] );
unset( $data['content']['rendered'] );
return $data;
}
/**
* Retrieves the block's schema, conforming to JSON Schema.
*
* @since 5.0.0
*
* @return array Item schema data.
*/
public function get_item_schema() {
// Do not cache this schema because all properties are derived from parent controller.
$schema = parent::get_item_schema();
/*
* Allow all contexts to access `title.raw` and `content.raw`. Clients always
* need the raw markup of a reusable block to do anything useful, e.g. parse
* it or display it in an editor.
*/
$schema['properties']['title']['properties']['raw']['context'] = array( 'view', 'edit' );
$schema['properties']['content']['properties']['raw']['context'] = array( 'view', 'edit' );
/*
* Remove `title.rendered` and `content.rendered` from the schema. It doesn’t
* make sense for a reusable block to have rendered content on its own, since
* rendering a block requires it to be inside a post or a page.
*/
unset( $schema['properties']['title']['properties']['rendered'] );
unset( $schema['properties']['content']['properties']['rendered'] );
return $schema;
}
}