// POST api/values
public HttpResponseMessage Post(Topic topic)
{
using (var db = new TopicsDataContext())
{
db.Topics.Add(topic);
db.SaveChanges();
return(Request.CreateResponse(HttpStatusCode.OK, new
{
id = topic.Id,
url = Request.RequestUri.AbsoluteUri + "/" + topic.Id
}));
}
}
public HttpResponseMessage Put(Topic topic)
{
using (var db = new TopicsDataContext())
{
db.Topics.Attach(topic);
db.Entry(topic).State = EntityState.Modified;
db.SaveChanges();
return(Request.CreateResponse(HttpStatusCode.OK, new
{
message = "topic is updated successfully"
}));
}
}
public void Save()
{
try
{
_dataContext.SaveChanges();
}
catch (DbUpdateException)
{
throw;
}
catch (DbEntityValidationException)
{
throw;
}
catch (EntityException)
{
throw;
}
}
// DELETE api/topic/2
public HttpResponseMessage Delete(int id)
{
using (var db = new TopicsDataContext())
{
var topic = db.Topics.SingleOrDefault(t => t.Id == id);
if (topic == null)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, new
{
message = "The topic you want to delete was not found"
}));
}
db.Topics.Attach(topic);
db.Entry(topic).State = EntityState.Deleted;
db.SaveChanges();
return(Request.CreateResponse(HttpStatusCode.OK, new
{
message = "The topic was deleted successfully"
}));
}
}