public AdminSevrice()
        {
            BlogContext dbContext = new BlogContext();

            topicRepositories = new TopicFunction(dbContext);
            userRepositories  = new UserFunction(dbContext);
        }
        public TopicService()
        {
            BlogContext dbContext = new BlogContext();

            topicRepositiries   = new TopicFunction(dbContext);
            messageRepositories = new MessageFunction(dbContext);
            userRepositories    = new UserFunction(dbContext);
        }