public void Remove(int me, int favoriteId)
{
var db = new OkbDbContext();
var fav = db.Favorites.Find(me, favoriteId);
db.Favorites.Remove(fav);
db.SaveChanges();
}
public List<LocationPinyinModel> GetDistricts(int id)
{
var db = new OkbDbContext();
var result = from loc in db.Locations.AsNoTracking()
where loc.LocationId1 == id
select loc;
var list = new List<LocationPinyinModel>();
foreach (var loc in result)
{
var pinyinArr = PinyinHelper.ToHanyuPinyinStringArray(loc.LocationName2[0]);
list.Add(new LocationPinyinModel
{
LocationId = loc.LocationId2,
LocationName = loc.LocationName2,
Pinyin = pinyinArr != null ? pinyinArr[0] : ""
});
}
list.Sort((loc1, loc2) => loc1.Pinyin.CompareTo(loc2.Pinyin));
return list;
}
/// <summary>
/// Seed the Answers using SqlBulkCopy for performance.
/// </summary>
public void SeedAnswers(int numOfUsers, int numOfAnswersPerUser)
{
//Skip if answers exist
OkbDbContext context = new OkbDbContext();
if (context.Answers.Count() > 0)
{
context.Dispose();
return;
}
context.Dispose();
UserAnswerBulkDataReader bulkReader = new UserAnswerBulkDataReader(numOfUsers, numOfAnswersPerUser, "", "Answers");
using (SqlBulkCopy sbc = new SqlBulkCopy(connString,
SqlBulkCopyOptions.TableLock |
SqlBulkCopyOptions.UseInternalTransaction))
{
sbc.BatchSize = 2000;
sbc.DestinationTableName = "Answers";
foreach (var col in bulkReader.ColumnMappings)
{
sbc.ColumnMappings.Add(col);
}
sbc.WriteToServer(bulkReader);
}
}
public string GetLocationString(int locId1, int locId2)
{
var db = new OkbDbContext();
var loc = db.Locations.Find(locId1, locId2);
if(loc != null)
{
return loc.LocationName2 + ", " + loc.LocationName1;
}
return "";
}
public void Save(int me, int favoriteId)
{
var db = new OkbDbContext();
db.Favorites.Add(new Favorite
{
ProfileId = me,
FavoriteId = favoriteId,
FavoriteDate = DateTime.Now
});
db.SaveChanges();
}
public IList<Profile> GetFavorites(int profileId)
{
var db = new OkbDbContext();
var query = from favorite in db.Favorites.AsNoTracking()
where favorite.ProfileId == profileId
orderby favorite.FavoriteDate descending
select favorite.FavoriteProfile;
return query.ToList();
}
public IList<Profile> GetActiveUsers()
{
var db = new OkbDbContext();
var loginThreshold = DateTime.Now.AddHours(-OkbConstants.ACTIVE_USER_INTERVAL);
var query = from user in db.Users
where user.LastLoginDate > loginThreshold
join profile in db.Profiles.AsNoTracking() on user.ProfileId equals profile.Id
orderby user.LastLoginDate descending
select profile;
return query.ToList();
}
public void AnsweredQuestionActivity(int who, string quesText, string choiceText)
{
var db = new OkbDbContext();
db.ActivityFeed.Add(new Activity
{
Who = who,
CategoryId = (int)OkbConstants.ActivityCategories.AnsweredQuestion,
Field1 = Truncate(quesText, OkbConstants.FEED_BLURB_SIZE),
Field2 = Truncate(choiceText, OkbConstants.FEED_BLURB_SIZE),
Timestamp = DateTime.Now
});
db.SaveChanges();
}
public void EditProfileTextActivity(int who, string what)
{
var db = new OkbDbContext();
var act = new Activity
{
Who = who,
CategoryId = (int)OkbConstants.ActivityCategories.EditedProfileText,
Field1 = Truncate(what, OkbConstants.FEED_BLURB_SIZE),
Timestamp = DateTime.Now
};
db.ActivityFeed.Add(act);
db.SaveChanges();
}
/// <summary>
/// Starts a new conversation with the given user by adding their message to the database.
/// returns the Id of the newly created conversation. Increments the unread count of the
/// user the message was sent to.
/// </summary>
public async Task<int> StartConversation(int from, int to, string subject, string message)
{
var db = new OkbDbContext();
Message msg;
ConversationMap mapMe, mapOther;
//// New conversation
var conv = new Conversation { Subject = subject };
db.Conversations.Add(conv);
msg = new Message
{
Conversation = conv,
From = from,
MessageText = message,
Timestamp = DateTime.Now
};
db.Messages.Add(msg);
//My copy of the conversation
mapMe = new ConversationMap
{
Conversation = conv,
LastMessage = msg,
Other = to,
ProfileId = from,
HasBeenRead = true,
HasReplies = false
};
db.ConversationMap.Add(mapMe);
//Other's copy of the conversation
mapOther = new ConversationMap
{
Conversation = conv,
LastMessage = msg,
Other = from,
ProfileId = to,
HasBeenRead = false,
HasReplies = true
};
db.ConversationMap.Add(mapOther);
await db.SaveChangesAsync();
//Everything OK - we can increment the unread count
IncrementUnreadCount(to);
return conv.Id; //return new conversation Id
}
/// <summary>
/// Gets a list of all the answer choices for a given question
/// </summary>
private IList<string> GetChoices(int id)
{
var db = new OkbDbContext();
var list = new List<string>();
var result = from choice in db.QuestionChoices.AsNoTracking()
where choice.QuestionId == id
orderby choice.Index ascending
select choice;
foreach (var choice in result)
{
list.Add(choice.Text);
}
return list;
}
/////////////////////////// Private Methods ///////////////////////////////////
protected int GetProfileId()
{
int profileId;
var db = new OkbDbContext();
var id = Context.User.Identity.GetUserId();
var user = db.Users.Find(id);
if (user == null)
{
// No profile exists for user!??!?
throw new Exception("No profile exists for user");
}
profileId = user.Profile.Id;
return profileId;
}
/// <summary>
/// Seed the Activity feed with a bunch of activities.
/// Can be Joined, AnsweredQuestion, UploadedPhoto, or EditedProfile
/// </summary>
public void SeedActivities(int n)
{
var db = new OkbDbContext();
var rand = new Random();
for (int i = 0; i < n; i++)
{
db.ActivityFeed.Add(new Activity
{
Who = (rand.Next() % 1000) + 1,
CategoryId = (rand.Next() % 4) + 1,
Timestamp = RandomTime(rand),
Field1 = "this is some test text for metadata field. lorum ipsum dolor blah blah blah"
});
}
db.SaveChanges();
}
/// <summary>
/// Gets the next 2 un-answered questions for the user.
/// - Will return a list with either 0, 1 or 2 elements.
/// - The questions are ordered by Rank so questions returned will be the next "best" questions.
/// - Skipped questions are stored in the DB (but not the cache) so they won't be included in the returned questions.
/// - Performance-wise loops thru the answers and questions in the DB and builds a HashSet and list respectively,
/// so a fairly expensive operation. Have room for optimization.
/// </summary>
public IList<QuestionModel> Next2Questions(int profileId)
{
var db = new OkbDbContext();
//Build answer dictionary
var result = from answer in db.Answers.AsNoTracking()
where answer.ProfileId == profileId
select answer;
var set = new HashSet<Int16>();
foreach (var answer in result)
{
set.Add(answer.QuestionId);
}
var list = new List<QuestionModel>();
int count = 0;
//Loop thru all the questions ordered by rank
var questions = from q in db.Questions.AsNoTracking()
orderby q.Rank ascending
select q;
foreach (var question in questions)
{
if (set.Contains(question.Id)) continue;
list.Add(new QuestionModel
{
Id = question.Id,
Text = question.Text,
Choices = GetChoices(question.Id)
});
count++;
if (count >= 2) break; //just get the next 2 questions
}
return list;
}
/// <summary>
/// Peforms a match search for a user given their search preferences and returns a list
/// of sorted matches.
/// </summary>
public List<MatchModel> Search(int profileId, MatchCriteriaModel criteria)
{
var db = new OkbDbContext();
var matches = new List<MatchModel>();
var query = BuildSearchQuery(db, criteria);
var myAnswers = _matchCalc.GetAnswerDict(profileId);
foreach (var p in query)
{
var matchResult = _matchCalc.CalculateMatchPercent(p.Id, myAnswers);
matches.Add(new MatchModel
{
MatchPercent = matchResult.MatchPercent,
FriendPercent = matchResult.FriendPercent,
EnemyPercent = matchResult.EnemeyPercent,
UserId = p.UserId,
Nickname = p.Nickname,
ProfileId = p.Id,
Photo = p.GetFirstHeadshot(),
Age = p.GetAge(),
Gender = p.Gender,
Location = _locRepo.GetLocationString(p.LocationId1, p.LocationId2)
});
}
//For now just sort the list by match %
matches.Sort(delegate (MatchModel m1, MatchModel m2)
{
return m2.MatchPercent.CompareTo(m1.MatchPercent);
});
return matches;
}
/// <summary>
///
/// Updates/Adds a users answer in the database. Called by AnswerQuestion which already
/// validated the answer so we don't have to here.
///
/// </summary>
protected async Task AnswerDbAsync(Answer ans)
{
var db = new OkbDbContext();
var dbAns = await db.Answers.FindAsync(ans.ProfileId, ans.QuestionId);
//Are we updating a question or adding a new one?
if (dbAns == null)
{
//new answer
ans.LastAnswered = DateTime.Now;
db.Answers.Add(ans);
}
else
{
//update answer
dbAns.ChoiceIndex = ans.ChoiceIndex;
dbAns.ChoiceWeight = ans.ChoiceWeight;
dbAns.ChoiceAccept = ans.ChoiceAccept;
dbAns.LastAnswered = DateTime.Now;
}
await db.SaveChangesAsync();
}
public void UploadPhotoActivity(int who, string what)
{
var db = new OkbDbContext();
db.ActivityFeed.Add(new Activity
{
Who = who,
CategoryId = (int)OkbConstants.ActivityCategories.UploadedPhoto,
Field1 = what,
Timestamp = DateTime.Now
});
db.SaveChanges();
}
public Conversation GetConversation(int id)
{
var db = new OkbDbContext();
var conv = db.Conversations.Find(id);
return conv;
}
/// <summary>
/// Simulations answering one question to see how fast we can insert answers into the DB.
/// Should be called in a loop and given a Random object.
/// </summary>
public void SimulateAnsweringQuestion(Random rand)
{
var db = new OkbDbContext();
var ans = new Answer
{
ProfileId = rand.Next(2, 200000),
QuestionId = (short)rand.Next(201, 1243),
ChoiceIndex = 1,
ChoiceWeight = 1,
ChoiceAccept = 1,
LastAnswered = DateTime.Now
};
try
{
db.Answers.Add(ans);
db.SaveChanges();
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// Seed the users by creating a OkbUser and Profile for each user. Takes a list of provinces
/// and randomizes the location of each user. Uses the UserProfileBulkReader to generate random
/// profiles.
/// </summary>
public void SeedUsers(int numOfUsers, IList<LocationPinyinModel> provinces, int commitCount = 100)
{
var db = new OkbDbContext();
var profileGen = new ProfileGenerator(provinces);
var userManager = new UserManager<OkbUser, string>(new UserStore<OkbUser>(db));
db.Configuration.AutoDetectChangesEnabled = false;
for (int i = 1; i < numOfUsers; i++)
{
var email = "test" + i + "@okboba.com";
var user = new OkbUser
{
UserName = email,
Email = email,
PasswordHash = userManager.PasswordHasher.HashPassword("password"),
SecurityStamp = Guid.NewGuid().ToString(),
JoinDate = DateTime.Now
};
var profile = profileGen.Next();
user.Profile = profile;
profile.UserId = user.Id;
db.Users.Add(user);
if (i % commitCount == 0)
{
db.SaveChanges();
db.Dispose();
db = new OkbDbContext();
db.Configuration.AutoDetectChangesEnabled = false;
}
}
db.SaveChanges();
}
public void SeedTranslateQuestions(List<TranslateQuestion> quesList)
{
var db = new OkbDbContext();
foreach (var q in quesList)
{
db.TranslateQuestions.Add(q);
}
var ret = db.SaveChanges();
}
/// <summary>
/// Seed the Questions from the given file containg Okc Questions
/// </summary>
public void SeedOkcQuestions(string filename)
{
var db = new OkbDbContext();
if (db.Questions.Count() > 0) return;
//////////////// Insert Okcupid questions ////////////////////
var stream = new StreamReader(filename);
int count = 1;
while (!stream.EndOfStream)
{
var line = stream.ReadLine();
int index = 1;
string answerLine;
//Loop thru answers
while ((answerLine = stream.ReadLine()) != "" && !stream.EndOfStream)
{
db.QuestionChoices.Add(new QuestionChoice
{
QuestionId = (short)count,
Index = (byte)index,
Score = 0,
Text = answerLine
});
index++;
}
//Add Question
db.Questions.Add(new Question
{
Id = (short)count,
Rank = count,
Text = line,
TraitId = null
});
count++;
db.SaveChanges();
}
}
/// <summary>
/// Update the database with okboba questions
/// </summary>
public void SeedOkbQuestions(string filename)
{
string answerLine;
var stream = new StreamReader(filename);
var rgx = new Regex("^\\d+\\. (.*)");
var db = new OkbDbContext();
int count = 1;
while (!stream.EndOfStream)
{
var line = stream.ReadLine(); //question
var match = rgx.Match(line);
var questionText = match.Groups[1].Value;
var ques = db.Questions.Find(count);
ques.Text = questionText;
int index = 1;
//delete old choices
db.QuestionChoices.RemoveRange(db.QuestionChoices.Where(c => c.QuestionId == count));
//Loop thru answers
while ((answerLine = stream.ReadLine()) != "" && !stream.EndOfStream)
{
db.QuestionChoices.Add(new QuestionChoice
{
QuestionId = (short)count,
Index = (byte)index,
Score = 0,
Text = answerLine
});
index++;
}
count++;
db.SaveChanges();
}
//db.SaveChanges();
}
/// <summary>
/// Seed the Locations from the given file
/// </summary>
public void SeedLocations(string filename)
{
OkbDbContext db = new OkbDbContext();
if (db.Locations.Count() > 0)
{
db.Dispose();
return;
}
//Read from file
using (StreamReader sr = new StreamReader(filename))
{
string line;
Int16 provinceCount = 1;
while ((line = sr.ReadLine()) != null)
{
var cities = line.Split(' ');
//First entry is the province
string province = cities[0];
for (Int16 districtCount = 1; districtCount < cities.Length; districtCount++)
{
string district = cities[districtCount];
var loc = new Location
{
LocationId1 = provinceCount,
LocationId2 = districtCount,
LocationName1 = province,
LocationName2 = district
};
//Update the database
db.Locations.Add(loc);
db.SaveChanges();
}
provinceCount++;
}
}
}
/// <summary>
/// Seed the detail options from the given file
/// </summary>
public void SeedDetailOptions(string filename)
{
var sr = new StreamReader(filename);
var colName = "";
var details = new List<ProfileDetailOption>();
byte id = 0;
var db = new OkbDbContext();
while (!sr.EndOfStream)
{
var line = sr.ReadLine();
if (line.IndexOf('\t') != -1)
{
//detail option
db.ProfileDetailOptions.Add(new ProfileDetailOption
{
ColName = colName,
Id = id,
Value = line.Trim()
});
//details.Add(new ProfileDetailOption
//{
// ColName = colName,
// Id = id,
// Value = line.Trim()
//});
id++;
}
else
{
//new detail
colName = line.Split(',')[1].Trim();
id = 1;
}
}
db.SaveChanges();
//Dump it out
//foreach (var option in details)
//{
// Console.WriteLine("{0}, {1}, {2}", option.Id, option.ColName, option.Value);
//}
}
public IEnumerable<ActivityModel> GetActivities(int numOfActivities, byte lookingGender, int me)
{
//get the top N activities
var db = new OkbDbContext();
var result = from activity in db.ActivityFeed.AsNoTracking()
join profile in db.Profiles.AsNoTracking()
on activity.Who equals profile.Id
where profile.Id != me && profile.Gender == lookingGender
orderby activity.Timestamp descending
select new ActivityModel
{
Activity = activity,
Profile = profile
};
var feed = new List<ActivityModel>();
foreach (var item in result.Take(numOfActivities))
{
feed.Add(item);
}
return feed;
}
/// <summary>
/// Gets all the unread conversations in the database that haven't been sent to email.
/// Used by the Mail Job to notify users of unread mail.
/// </summary>
public IEnumerable<UnreadConversationModel> GetUnreadConversations()
{
var db = new OkbDbContext();
var result = from map in db.ConversationMap.AsNoTracking()
where map.HasBeenRead == false && map.HasBeenEmailed == false
join otherProfile in db.Profiles.AsNoTracking() on map.Other equals otherProfile.Id
join profile in db.Profiles.AsNoTracking() on map.ProfileId equals profile.Id
join user in db.Users.AsNoTracking() on profile.UserId equals user.Id
select new UnreadConversationModel
{
Map = map,
OtherProfile = otherProfile,
Email = user.Email,
UserId = user.Id,
Name = profile.Nickname
};
return result.ToList();
}
/// <summary>
/// Marks all the conversations as emailed. called by the mail job after it has finished
/// emailing all the users their unread conversations.
/// </summary>
public void MarkAllAsEmailed()
{
var db = new OkbDbContext();
var sql = "update ConversationMaps set HasBeenEmailed = 1 where HasBeenEmailed = 0";
db.Database.ExecuteSqlCommand(sql);
}
/// <summary>
///
/// Loads the inital answer cache from the database. Returns the number of answers
/// loaded. Should be called when the app first starts. Could take up a lot of memory.
///
/// </summary>
public int LoadAnswerCache()
{
int count = 0;
_answerCache = new Dictionary<int, List<CacheAnswer>>();
var db = new OkbDbContext();
List<CacheAnswer> list;
foreach (var ans in db.Answers.AsNoTracking())
{
//Don't load questions the user skipped (ChoiceBit==null)
if (ans.ChoiceIndex == null) continue;
if (!_answerCache.TryGetValue(ans.ProfileId, out list))
{
list = new List<CacheAnswer>();
_answerCache.Add(ans.ProfileId, list);
}
list.Add(new CacheAnswer
{
QuestionId = ans.QuestionId,
ChoiceBit = ans.ChoiceBit(),
ChoiceAccept = ans.ChoiceAccept,
ChoiceWeight = ans.ChoiceWeight,
LastAnswered = ans.LastAnswered
});
count++;
}
return count;
}
public void JoinedActivity(int who)
{
var db = new OkbDbContext();
db.ActivityFeed.Add(new Activity
{
Who = who,
CategoryId = (int)OkbConstants.ActivityCategories.Joined,
Field1 = "",
Timestamp = DateTime.Now
});
db.SaveChanges();
}
