public HttpResponseMessage PostStudent(Student studentEntity)
{
if (studentEntity == null || studentEntity.FirstName == null ||
studentEntity.LastName == null || studentEntity.School == null)
{
var errResponse =
this.Request.CreateErrorResponse(HttpStatusCode.BadRequest, "The student is invalid");
return(errResponse);
}
try
{
var entity = this.studentRepository.Add(studentEntity);
var response = this.Request.CreateResponse(
HttpStatusCode.Created, StudentModel.CreateFromStudentEntity(studentEntity));
response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = entity.StudentId }));
return(response);
}
catch (DbUpdateConcurrencyException)
{
var errResponse = this.Request.CreateErrorResponse(HttpStatusCode.InternalServerError,
"The student could not be added because of a concurrency problem");
return(errResponse);
}
}
public HttpResponseMessage PutStudent(int id, Student studentEntity)
{
if (id <= 0)
{
var errResponse = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest,
"The id of the student must be positive");
return(errResponse);
}
try
{
var entity = this.studentRepository.Update(id, studentEntity);
var response = this.Request.CreateResponse(
HttpStatusCode.OK, StudentModel.CreateFromStudentEntity(entity));
response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = entity.StudentId }));
return(response);
}
catch (DbUpdateConcurrencyException)
{
var errResponse = this.Request.CreateErrorResponse(HttpStatusCode.InternalServerError,
"The student could not be updated because of a concurrency problem");
return(errResponse);
}
catch (NullReferenceException)
{
var errResponse = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest,
string.Format("A Student entity with id={0} does not exist in the Database", id));
return(errResponse);
}
}
public IEnumerable <StudentModel> GetAll()
{
var entities = this.studentRepository.GetAll();
List <StudentModel> models = new List <StudentModel>();
foreach (var entity in entities)
{
models.Add(StudentModel.CreateFromStudentEntity(entity));
}
return(models);
}
public IEnumerable <StudentModel> Find(string subject, double?value)
{
var entities = this.studentRepository
.Find(s => s.Marks.Any(m => m.Subject == subject && m.Value >= value));
List <StudentModel> models = new List <StudentModel>();
foreach (var entity in entities)
{
models.Add(StudentModel.CreateFromStudentEntity(entity));
}
return(models);
}
public StudentModel Get(int id)
{
if (id <= 0)
{
var errResponse = this.Request.CreateErrorResponse(HttpStatusCode.BadRequest,
"The id of the student must be positive");
throw new HttpResponseException(errResponse);
}
var entity = this.studentRepository.GetById(id);
if (entity != null)
{
StudentModel model = StudentModel.CreateFromStudentEntity(entity);
return(model);
}
else
{
return(null);
}
}
