// GET api/students
public HttpResponseMessage GetStudents()
{
// My original idea was to create 2 different data access layers (one with entity framework and one with nHibernate),
// then let you use a Header value to determine which DAL to use and inject the chosen provider into the service.
using (provider = new EntDAL.EFProvider())
{
StudentService service = new StudentService(provider);
List<StudentDTO> students = service.GetStudents();
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, students, "application/json");
return response;
}
}
// GET api/students/1
public StudentDTO GetStudent(int id)
{
using (provider = new EntDAL.EFProvider())
{
StudentService service = new StudentService(provider);
StudentDTO student = service.GetStudent(id);
if (student == null)
{
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound));
}
// this should still return the proper response headers
// even without specifically returning an HttpResponseMessage object
return student;
}
}
// DELETE api/students/5
public HttpResponseMessage Delete(int id)
{
using (provider = new EntDAL.EFProvider())
{
StudentService service = new StudentService(provider);
if (service.DeleteStudent(id))
{
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.NoContent);
return response;
}
else
{
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.NotFound);
return response;
}
}
}
// POST api/Students
public HttpResponseMessage PostStudent(Student student)
{
if (ModelState.IsValid)
{
using (provider = new EntDAL.EFProvider())
{
StudentService service = new StudentService(provider);
StudentDTO stud = service.CreateStudent(student);
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, stud);
return response;
}
}
else
{
return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
}
}
