/// <summary>
        /// Adding collection of loans
        /// </summary>
        /// <param name="entities"></param>
        public void AddRange(List <LoanDTO> entities)
        {
            try
            {
                // call repository method to save collection of loans
                var collLoans = _mapper.Map <List <LoanDTO>, List <Loan> >(entities);

                _repository.AddRange(collLoans);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }