public void MakeMatch(aspnet_User one, aspnet_User two)
{
// Compute
var totalNumQuestions = db.Questions.Count();
int scoreSame = 0;
foreach (var q in db.Questions)
{
try
{
var ansone = db.Responses.Where(u => u.UserId == one.UserId && u.QuestionId == q.Id).SingleOrDefault().AnswerId;
var anstwo = db.Responses.Where(u => u.UserId == two.UserId && u.QuestionId == q.Id).SingleOrDefault().AnswerId;
if (ansone == anstwo)
{
scoreSame++;
}
}
catch (NullReferenceException e)
{
// If there was an error above, that means that one of them didn't answer the question because SingleOrDefault() returned null
// They can't answer only some of the questions and not the rest, so we don't need to check other questions
break; // keep scoreSame at 0, don't check other questions
}
catch
{
// Other exception... uh, idk. Let it continue.
}
}
var ratio = ((double)scoreSame) / totalNumQuestions;
// Add noise
var noiseInt = new Random().Next(1, 10); // 1% to 10% noise
if (new Random().Next(0, 1) == 1)
{
noiseInt *= -1; // add or subtract
}
double noise = (double)noiseInt / 100;
if (ratio + noise > 1 || ratio + noise < 0) // we want to limit to between 0 and 1
{
noise *= -1;
}
ratio += noise;
// Get profiles
var profile1 = AccountProfile.GetProfileOfUser(one.UserName);
var profile2 = AccountProfile.GetProfileOfUser(two.UserName);
// Write to DB
var time = DateTime.Now;
var m_one = new Match();
m_one.RequestUser = one.UserId;
m_one.MatchedUser = two.UserId;
m_one.MatchedSex = (profile2.Sex == 2);
m_one.AreSameGrade = profile1.Grade == profile2.Grade;
m_one.CompatibilityIndex = ratio;
m_one.DateCalculated = time;
db.Matches.InsertOnSubmit(m_one);
var m_two = new Match();
m_two.RequestUser = two.UserId;
m_two.MatchedUser = one.UserId;
m_two.MatchedSex = (profile1.Sex == 2);
m_two.AreSameGrade = profile1.Grade == profile2.Grade;
m_two.CompatibilityIndex = ratio;
m_two.DateCalculated = time;
db.Matches.InsertOnSubmit(m_two);
db.SubmitChanges();
}
partial void Deleteaspnet_User(aspnet_User instance);
partial void Insertaspnet_User(aspnet_User instance);
partial void Updateaspnet_User(aspnet_User instance);
private void detach_aspnet_Users(aspnet_User entity)
{
this.SendPropertyChanging();
entity.aspnet_Application = null;
}