public IHttpActionResult AddCompanies(DtoCompanies projectCompanies)
        {
            var projectCompaniesEntity = new companies
            {
                companyName = projectCompanies.companyName,
                address = projectCompanies.address,
                email = projectCompanies.email,
                fax = projectCompanies.fax,
                phone = projectCompanies.phone

            };
            _companies.Add(projectCompaniesEntity);
            _companies.Save();

            _companies.Reload(projectCompaniesEntity);

            return Ok(projectCompaniesEntity);
        }
        public IHttpActionResult EditProjectCompanies(DtoCompanies projectCompanies)
        {
            companies _obj = _companies.FindBy(x => x.id == projectCompanies.id).SingleOrDefault();

            _obj.companyName = projectCompanies.companyName;
            _obj.fax = projectCompanies.fax;
            _obj.phone = projectCompanies.phone;
            _obj.email = projectCompanies.email;

            _companies.Edit(_obj);
            _companies.Save();

            return Ok(_obj);
        }