public static async Task Import()
{
var credentials = MongoCredential.CreateCredential(DbName, User, Pass);
var settings = new MongoClientSettings
{
Server = new MongoServerAddress(DbHost, DbPort),
Credentials = new List <MongoCredential> {
credentials
}
};
var client = new MongoClient(settings);
var mongoDb = client.GetDatabase(DbName);
var dbContext = new NBAStatisticsDbContext();
await Task.Run(async() =>
{
var mongoSeasons = mongoDb.GetCollection <NBAStatistics.Data.FillMongoDB.Models.Season>("Seasons").AsQueryable().ToList();
// Load all teams from the database into the context
dbContext.Teams.Load();
foreach (var season in mongoSeasons)
{
foreach (var team in season.Teams)
{
//var teamInDb = dbContext.Teams.Local
// .FirstOrDefault(t => t.TeamId == team.TeamId);
var teamInDb = dbContext.Teams.Local
.SingleOrDefault(t => t.TeamId == team.TeamId); // runs in memory
if (teamInDb == null)
{
dbContext.Teams.Add(new Team
{
TeamId = team.TeamId,
Name = team.Name
});
}
}
}
await dbContext.SaveChangesAsync();
var mongoPlayers = mongoDb.GetCollection <NBAStatistics.Data.FillMongoDB.Models.Player>("Players").AsQueryable().ToList();
// Load all players from the database into the context
dbContext.Players.Load();
dbContext.Teams.Load();
foreach (var player in mongoPlayers)
{
var playerNameParts = player.PlayerName.Split(new char[] { ' ' });
// throws an exception if there is more than 1 element in the sequence
var playerInDb = dbContext.Players.Local
.SingleOrDefault(p => p.AdditionalInfo.PlayerId == player.PlayerId); // runs in memory
if (playerInDb == null)
{
dbContext.Players.Add(new Player
{
FirstName = playerNameParts.Length > 0 ? playerNameParts[0] : "",
LastName = playerNameParts.Length > 1 ? playerNameParts[1] : "",
AdditionalInfo = new PlayerInfo
{
PlayerId = player.PlayerId,
Birthday = DateTime.ParseExact(player.BirthDate, "MMM dd, yyyy", CultureInfo.InvariantCulture),
Height = ConvertHeightFromFeetsInchesToCentimeters(player.Height),
Weight = PoundsToKilogram(player.Weight)
},
School = string.IsNullOrEmpty(player.School) ? null : new School
{
Name = player.School
},
Position = player.Position,
TeamId = dbContext.Teams.Local
.Single(t => t.TeamId == player.TeamId)
.Id
});
}
}
await dbContext.SaveChangesAsync();
});
}
public static async Task ImportFromMongoDB()
{
var credentials = MongoCredential.CreateCredential(DbName, User, Pass);
var settings = new MongoClientSettings
{
Server = new MongoServerAddress(DbHost, DbPort),
Credentials = new List <MongoCredential> {
credentials
}
};
var client = new MongoClient(settings);
var mongoDb = client.GetDatabase(DbName);
var dbContext = new NBAStatisticsDbContext();
await Task.Run(async() =>
{
var mongoSeasons = mongoDb.GetCollection <NBAStatistics.Data.FillMongoDB.Models.Season>("Seasons").AsQueryable().ToList();
// Load all teams from the database into the dbContext
dbContext.Teams.Load();
var nullTeamInDb = dbContext.Teams.Local
.SingleOrDefault(t => t.TeamId == 0); // runs in memory
if (nullTeamInDb == null)
{
// add fake team for players without team
dbContext.Teams.Add(new Team
{
TeamId = 0,
Name = "NoName",
Abbreviation = "",
Founded = 0,
City = new City
{
Name = "NoName",
Country = new Country
{
Name = "NoName"
}
},
Arena = new Arena
{
Name = "NoName"
},
HeadCoach = new HeadCoach
{
Name = "NoName"
}
});
}
foreach (var season in mongoSeasons)
{
foreach (var team in season.Teams)
{
//var teamInDb = dbContext.Teams.Local
// .FirstOrDefault(t => t.TeamId == team.TeamId);
var teamInDb = dbContext.Teams.Local
.SingleOrDefault(t => t.TeamId == team.TeamId); // runs in memory
if (teamInDb == null)
{
dbContext.Teams.Add(new Team
{
TeamId = team.TeamId,
Name = team.Name,
Abbreviation = team.Abbreviation,
Founded = team.Founded,
City = new City
{
Name = team.City,
Country = new Country
{
Name = team.Country
}
},
Arena = new Arena
{
Name = team.Arena
},
HeadCoach = new HeadCoach
{
Name = team.HeadCoach
}
});
}
}
}
await dbContext.SaveChangesAsync();
var mongoPlayers = mongoDb.GetCollection <NBAStatistics.Data.FillMongoDB.Models.Player>("Players").AsQueryable().ToList();
// Load all players from the database into the dbContext
dbContext.Players.Load();
dbContext.Teams.Load();
foreach (var playerMongoDB in mongoPlayers)
{
// throws an exception if there is more than 1 element in the sequence
var playerInDb = dbContext.Players.Local
.SingleOrDefault(p => p.AdditionalInfo.PlayerId == playerMongoDB.PlayerId); // runs in memory
if (playerInDb == null)
{
var player = new Player
{
FirstName = playerMongoDB.FirstName,
LastName = playerMongoDB.LastName,
AdditionalInfo = new PlayerInfo
{
PlayerId = playerMongoDB.PlayerId,
Birthday = playerMongoDB.BirthDate,
Height = string.IsNullOrEmpty(playerMongoDB.Height) ? null : ConvertHeightFromFeetsInchesToCentimeters(playerMongoDB.Height),
Weight = string.IsNullOrEmpty(playerMongoDB.Weight) ? null : PoundsToKilogram(playerMongoDB.Weight)
},
School = string.IsNullOrEmpty(playerMongoDB.School) ? null : new School
{
Name = playerMongoDB.School
},
Country = string.IsNullOrEmpty(playerMongoDB.Country) ?
new Country {
Name = "NoName"
} :
string.IsNullOrEmpty(playerMongoDB.Country.Trim()) ?
new Country {
Name = "NoName"
} :
new Country {
Name = playerMongoDB.Country
},
Position = playerMongoDB.Position,
RosterStatus = playerMongoDB.RosterStatus,
TeamId = dbContext.Teams.Local
.Single(t => t.TeamId == playerMongoDB.TeamId)
.Id
};
dbContext.Players.Local.Add(player);
}
}
await dbContext.SaveChangesAsync();
// Load all players and seasons from the database into the dbContext
dbContext.Players.Load();
dbContext.Seasons.Load();
dbContext.PlayerSeasonPointsPerGame.Load();
foreach (var playerMongoDB in mongoPlayers)
{
var player = dbContext.Players.Local
.FirstOrDefault(p => p.AdditionalInfo.PlayerId == playerMongoDB.PlayerId);
foreach (var sppg in playerMongoDB.SeasonPointsPerGame)
{
var seasonIdInMongoDB = sppg.Key;
var pointsPerGameInMongoDB = sppg.Value;
var seasonId = dbContext.Seasons.Local
.FirstOrDefault(s => s.SeasonId == seasonIdInMongoDB)
.Id;
var playerSeasonPointsPerGameRecordExists =
dbContext.PlayerSeasonPointsPerGame.Local
.Where(ps => ps.PlayerId == player.Id && ps.SeasonId == seasonId)
.Count() > 0;
if (playerSeasonPointsPerGameRecordExists)
{
// skip this record to DB
continue;
}
var playerSeasonPointsPerGame = new PlayerSeasonPointsPerGame
{
PlayerId = player.Id,
SeasonId = seasonId,
PointsPerGame = pointsPerGameInMongoDB
};
player.PlayerSeasonPointsPerGame.Add(playerSeasonPointsPerGame);
}
}
await dbContext.SaveChangesAsync();
});
}
