WP_REST_Attachments_Controller::update_item( WP_REST_Request $request ): WP_REST_Response|WP_Error

Source

public function update_item( $request ) {
	if ( ! empty( $request['post'] ) && in_array( get_post_type( $request['post'] ), array( 'revision', 'attachment' ), true ) ) {
		return new WP_Error(
			'rest_invalid_param',
			__( 'Invalid parent type.' ),
			array( 'status' => 400 )
		);
	}

	$attachment_before = get_post( $request['id'] );
	$response          = parent::update_item( $request );

	if ( is_wp_error( $response ) ) {
		return $response;
	}

	$response = rest_ensure_response( $response );
	$data     = $response->get_data();

	if ( isset( $request['alt_text'] ) ) {
		update_post_meta( $data['id'], '_wp_attachment_image_alt', $request['alt_text'] );
	}

	$attachment = get_post( $request['id'] );

	if ( ! empty( $schema['properties']['featured_media'] ) && isset( $request['featured_media'] ) ) {
		$thumbnail_update = $this->handle_featured_media( $request['featured_media'], $attachment->ID );

		if ( is_wp_error( $thumbnail_update ) ) {
			return $thumbnail_update;
		}
	}

	$fields_update = $this->update_additional_fields_for_object( $attachment, $request );

	if ( is_wp_error( $fields_update ) ) {
		return $fields_update;
	}

	$request->set_param( 'context', 'edit' );

	/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php */
	do_action( 'rest_after_insert_attachment', $attachment, $request, false );

	wp_after_insert_post( $attachment, true, $attachment_before );

	$response = $this->prepare_item_for_response( $attachment, $request );
	$response = rest_ensure_response( $response );

	return $response;
}

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