WP_REST_Abilities_V1_Categories_Controller::get_items( WP_REST_Request $request ): WP_REST_Response

Source

public function get_items( $request ) {
	$categories = wp_get_ability_categories();

	$page     = $request['page'];
	$per_page = $request['per_page'];
	$offset   = ( $page - 1 ) * $per_page;

	$total_categories = count( $categories );
	$max_pages        = (int) ceil( $total_categories / $per_page );

	if ( $request->get_method() === 'HEAD' ) {
		$response = new WP_REST_Response( array() );
	} else {
		$categories = array_slice( $categories, $offset, $per_page );

		$data = array();
		foreach ( $categories as $category ) {
			$item   = $this->prepare_item_for_response( $category, $request );
			$data[] = $this->prepare_response_for_collection( $item );
		}

		$response = rest_ensure_response( $data );
	}

	$response->header( 'X-WP-Total', (string) $total_categories );
	$response->header( 'X-WP-TotalPages', (string) $max_pages );

	$query_params = $request->get_query_params();
	$base         = add_query_arg(
		urlencode_deep( $query_params ),
		rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) )
	);

	if ( $page > 1 ) {
		$prev_page = $page - 1;
		$prev_link = add_query_arg( 'page', $prev_page, $base );
		$response->link_header( 'prev', $prev_link );
	}

	if ( $page < $max_pages ) {
		$next_page = $page + 1;
		$next_link = add_query_arg( 'page', $next_page, $base );
		$response->link_header( 'next', $next_link );
	}

	return $response;
}

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