videoOnly<E> static method

Rule<FileInfo, E> videoOnly<E>({ required E error, })

Validates that the file is a video.

Checks for common video extensions and MIME types.

FileRules.videoOnly(error: 'Only videos allowed')

Implementation

static Rule<FileInfo, E> videoOnly<E>({required E error}) {
  const videoExtensions = ['mp4', 'mov', 'avi', 'mkv', 'webm', 'flv', 'wmv'];
  return PredicateRule(
    predicate: (value) {
      if (value.mimeType != null) {
        return value.mimeType!.startsWith('video/');
      }
      return videoExtensions.contains(value.extension);
    },
    error: error,
  );
}