//Check file is already registered
public bool FileIsAlreadyRegistered(string fileName)
{
var file = new FileModel
{
Id = ObjectId.GenerateNewId(),
FileName = fileName
};
var fileRepository = new FileRepository();
var files = fileRepository.GetFiles();
if (files.Cast <FileModel>().Any(f => f.FileName == fileName))
{
return(true);
}
fileRepository.AddFileToDb(file);
return(false);
}