WP_Post_Type::get_rest_controller(): WP_REST_Controller|null

Source

public function get_rest_controller() {
	if ( ! $this->show_in_rest ) {
		return null;
	}

	$class = $this->rest_controller_class ? $this->rest_controller_class : WP_REST_Posts_Controller::class;

	if ( ! class_exists( $class ) ) {
		return null;
	}

	if ( ! is_subclass_of( $class, WP_REST_Controller::class ) ) {
		return null;
	}

	if ( ! $this->rest_controller ) {
		$this->rest_controller = new $class( $this->name );
	}

	if ( ! ( $this->rest_controller instanceof $class ) ) {
		return null;
	}

	return $this->rest_controller;
}

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