public HttpResponseMessage Put([FromBody] int id, [FromUri] Employee employee)
        {
            try
            {
                using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
                {
                    var entity = entities.Employees.FirstOrDefault(e => e.ID == id);
                    if (entity == null)
                    {
                        return(Request.CreateErrorResponse(HttpStatusCode.NotFound, id + " not found"));
                    }
                    else
                    {
                        entity.First_Name = employee.First_Name;
                        entity.Last_Name  = employee.Last_Name;
                        entity.Gender     = employee.Gender;
                        entity.Salary     = employee.Salary;

                        entities.SaveChanges();
                        return(Request.CreateResponse(HttpStatusCode.OK));
                    }
                }
            }
            catch (Exception ex)
            {
                return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex));
            }
        }
 public static bool login(string username, string password)
 {
     using (WebAPI_Tutorial_DatabaseEntities entity = new WebAPI_Tutorial_DatabaseEntities())
     {
         return(entity.Users.Any(u => u.Username.Equals(username, StringComparison.OrdinalIgnoreCase) && u.Password.Equals(password)));
     }
 }
        //public Employee Get(int id)
        //{
        //    using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
        //    {
        //        //return entities.Employees.Find(id);
        //        return entities.Employees.FirstOrDefault(e => e.ID == id);
        //    }
        //}

        public HttpResponseMessage Get(int id)
        {
            using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
            {
                //return entities.Employees.Find(id);
                var entity = entities.Employees.FirstOrDefault(e => e.ID == id);
                if (entity != null)
                {
                    return(Request.CreateResponse(HttpStatusCode.OK, entity));
                }
                else
                {
                    return(Request.CreateErrorResponse(HttpStatusCode.NotFound, "Employee ID " + id + " not found"));
                }
            }
        }
        public HttpResponseMessage Get()
        {
            string username = Thread.CurrentPrincipal.Identity.Name;

            using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
            {
                switch (username.ToLower())
                {
                case "male":
                    return(Request.CreateResponse(HttpStatusCode.OK, entities.Employees.Where(e => e.Gender == "Male").ToList()));

                case "female":
                    return(Request.CreateResponse(HttpStatusCode.OK, entities.Employees.Where(e => e.Gender == "Female").ToList()));

                default:
                    return(Request.CreateResponse(HttpStatusCode.BadRequest));
                }
            }
        }
        // ai ta disi karon amra Get() function k call na kore Emp likhsi. but, code to r Emp() k chine na. tai.
        // code chine Get(), GetSomething() k. emon [HttpPut], [HttpPost], [HttpDelete] ase
        //[HttpGet]
        //public IEnumerable<Employee> amrShonarBangla()
        //{
        //    using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
        //    {
        //        return entities.Employees.ToList();
        //    }
        //}

        public HttpResponseMessage Get(string gender = "all")
        {
            using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
            {
                if (gender.ToLower().Equals("all"))
                {
                    return(Request.CreateResponse(HttpStatusCode.OK, entities.Employees.ToList()));
                }
                else if (gender.ToLower().Equals("male"))
                {
                    return(Request.CreateResponse(HttpStatusCode.OK, entities.Employees.Where(e => e.Gender.ToLower() == gender).ToList()));
                }
                else if (gender.ToLower().Equals("female"))
                {
                    return(Request.CreateResponse(HttpStatusCode.OK, entities.Employees.Where(e => e.Gender.ToLower() == gender).ToList()));
                }
                else
                {
                    return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, gender + " not found"));
                }
            }
        }
 public HttpResponseMessage Delete(int id)
 {
     try
     {
         using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
         {
             var entity = entities.Employees.FirstOrDefault(e => e.ID == id);
             if (entity == null)
             {
                 return(Request.CreateErrorResponse(HttpStatusCode.NotFound, id + " not found"));
             }
             else
             {
                 entities.Employees.Remove(entity);
                 entities.SaveChanges();
                 return(Request.CreateResponse(HttpStatusCode.OK));
             }
         }
     }
     catch (Exception ex)
     {
         return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex));
     }
 }
        public HttpResponseMessage Post([FromBody] Employee employee)
        {
            try
            {
                using (WebAPI_Tutorial_DatabaseEntities entities = new WebAPI_Tutorial_DatabaseEntities())
                {
                    entities.Employees.Add(employee);
                    entities.SaveChanges();

                    return(Request.CreateResponse(HttpStatusCode.Created, employee));

                    //var message = Request.CreateResponse(HttpStatusCode.Created, employee);

                    //-- nicher ai ta likhle path shoho fixed hoye jabe.. tutorial-7 (09:20)

                    //message.Headers.Location = new Uri(Request.RequestUri + "/" + employee.ID.ToString());
                    //return message;
                }
            }
            catch (Exception ex)
            {
                return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex));
            }
        }