public HttpResponseMessage Put(int id, [FromUri] artist artist)
{
using (artistsDBEntities entities = new artistsDBEntities())
{
try {
var entity = entities.artists.FirstOrDefault(e => e.ID == id);
if (entity == null)
{
return(Request.CreateErrorResponse(HttpStatusCode.NotFound, "Artist with Id " + id.ToString() + " not found to update"));
}
else
{
entity.FirstName = artist.FirstName;
entity.LastName = artist.LastName;
entity.Genre = artist.Genre;
entity.NumberOfAlbums = artist.NumberOfAlbums;
entities.SaveChanges();
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
catch (Exception e)
{
return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, e));
}
}
}
public HttpResponseMessage Get(int id)
{
using (artistsDBEntities entities = new artistsDBEntities())
{
var entity = entities.artists.FirstOrDefault(e => e.ID == id);
if (entity != null)
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
else
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the id " + id.ToString() + " is not available"));
}
}
}
public HttpResponseMessage Post([FromUri] artist artist)
{
try {
using (artistsDBEntities entities = new artistsDBEntities())
{
entities.artists.Add(artist);
entities.SaveChanges();
var message = Request.CreateResponse(HttpStatusCode.Created, artist);
message.Headers.Location = new Uri(Request.RequestUri + artist.ID.ToString());
return(message);
}
}
catch (Exception ex)
{
return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex));
}
}
public HttpResponseMessage Delete(int id)
{
try
{
using (artistsDBEntities entities = new artistsDBEntities())
{
var entity = entities.artists.FirstOrDefault(e => e.ID == id);
if (entity == null)
{
return(Request.CreateErrorResponse(HttpStatusCode.NotFound, "The artist with the id " + id.ToString() + "not found to delete"));
}
else
{
entities.artists.Remove(entity);
entities.SaveChanges();
return(Request.CreateResponse(HttpStatusCode.OK));
}
}
}
catch (Exception e)
{
return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, e));
}
}
public HttpResponseMessage GetArtistByName(string genre = "All", string first_name = "null", string last_name = "null")
{
using (artistsDBEntities entities = new artistsDBEntities())
{
if (genre.ToLower() == "all" && first_name.ToLower() == "null" && last_name.ToLower() == "null")
{
return(Request.CreateResponse(HttpStatusCode.OK, entities.artists.ToList()));
}
if (genre.ToLower() == "all" && first_name.ToLower() != "null" && last_name.ToLower() == "null")
{
var entity = entities.artists.Where(e => e.FirstName.ToLower() == first_name.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the name " + first_name + " is not available"));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
if (genre.ToLower() == "all" && first_name.ToLower() == "null" && last_name.ToLower() != "null")
{
var entity = entities.artists.Where(e => e.LastName.ToLower() == last_name.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the name " + last_name + " is not available"));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
if (genre.ToLower() == "all" && first_name.ToLower() != "null" && last_name.ToLower() != "null")
{
var entity = entities.artists.Where(e => e.LastName.ToLower() == last_name.ToLower() && e.FirstName.ToLower() == first_name.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the name " + first_name + " " + last_name + " is not available"));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
//if genre not all
if (genre.ToLower() != "all" && first_name.ToLower() != "null" && last_name.ToLower() == "null")
{
var entity = entities.artists.Where(e => e.FirstName.ToLower() == first_name.ToLower() && e.Genre.ToLower() == genre.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the name " + first_name + " is not available with genre " + genre));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
if (genre.ToLower() != "all" && first_name.ToLower() == "null" && last_name.ToLower() != "null")
{
var entity = entities.artists.Where(e => e.LastName.ToLower() == last_name.ToLower() && e.Genre.ToLower() == genre.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the name " + last_name + " is not available with genre " + genre));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
if (genre.ToLower() != "all" && first_name.ToLower() != "null" && last_name.ToLower() != "null")
{
var entity = entities.artists.Where(e => e.LastName.ToLower() == last_name.ToLower() && e.FirstName.ToLower() == first_name.ToLower() && e.Genre.ToLower() == genre.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artist with the name " + first_name + " " + last_name + " is not available with genre " + genre));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
if (genre.ToLower() != "all" && first_name.ToLower() == "null" && last_name.ToLower() == "null")
{
var entity = entities.artists.Where(e => e.Genre.ToLower() == genre.ToLower()).ToList();
if (entity == null || entity.Count() == 0)
{
return(Request.CreateResponse(HttpStatusCode.NotFound, "Artists are not available with genre " + genre));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK, entity));
}
}
else
{
return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Genre value " + first_name + " & " + last_name + " is not valid. See the api page for all get request for genre"));
}
}
}
