public CompanySearchResponse Search(CompanySearchRequest request)
        {
            ValidateRequest(request);

            var response = new CompanySearchResponse
            {
                Companies = _dbContext.CompanyEntities
                    .OrderBy(c => c.Symbol)
                    .Skip((request.CurrentPage - 1) * request.PageSize)
                    .Take(request.PageSize)
                    .Select(c => Mapper.Map<Company>(c))
                    .ToList(),
                TotalItems = _dbContext.CompanyEntities.Count()
            };
            return response;
        }
 private void ValidateRequest(CompanySearchRequest request)
 {
     if (request.CurrentPage < 1)
         request.CurrentPage = 1;
     if (request.PageSize < 1)
         request.PageSize = 20;
 }