public HttpResponseMessage Add(int id, [FromBody] Vote vote)
{
var response = this.PerformOperation(() =>
{
var context = new CodeJewelsContext();
using (context)
{
var jewel = context.CodeJewels.Find(id);
if (jewel == null)
{
throw new ArgumentNullException("Cannot find jewel");
}
jewel.Votes.Add(vote);
context.Votes.Add(vote);
context.SaveChanges();
if (jewel.Votes.Count > 0)
{
double averageVote = jewel.Votes.Average(v => v.Value);
if (averageVote < MIN_RATING)
{
context.Votes.Remove(vote);
context.CodeJewels.Remove(jewel);
context.SaveChanges();
}
}
return vote;
}
});
return response;
}
public HttpResponseMessage Vote(int id, int voteValue)
{
if(voteValue != 1 && voteValue != -1)
{
return Request.CreateResponse(HttpStatusCode.BadRequest, "Invalid vote value");
}
CodeJewelsContext context = new CodeJewelsContext();
using (context)
{
try
{
var jewel = context.Jewels.Find(id);
jewel.Rating += voteValue;
if(jewel.Rating < MIN_ACCEPTABLE_RATING)
{
context.Jewels.Remove(jewel);
}
context.SaveChanges();
return Request.CreateResponse(HttpStatusCode.Created);
}
catch (Exception ex)
{
return Request.CreateResponse(HttpStatusCode.BadRequest, ex.Message);
}
}
}
public HttpResponseMessage PostJewel([FromBody] Jewel value)
{
CodeJewelsContext context = new CodeJewelsContext();
using (context)
{
context.Jewels.Add(value);
context.SaveChanges();
return Request.CreateResponse(HttpStatusCode.Created);
}
}
public HttpResponseMessage AddCodeJewel([FromBody] CodeJewel jewel)
{
var response = this.PerformOperation(() =>
{
var context = new CodeJewelsContext();
using (context)
{
context.CodeJewels.Add(jewel);
context.SaveChanges();
return jewel;
}
});
return response;
}