/// <summary>
/// Any database object should be only removed through this method. It encapsulates sanity testing and only deletes
/// an entity if it is not referenced in any other entity.
/// </summary>
/// <param name="a_EntityToRemove">The entity will be tried to converted into a known object.</param>
/// <returns>Invalid if something went wrong, Removed if the entity was removed and NotRemoved if the entity is still referenced.</returns>
public EntityInteractionStatus RemoveEntity(object a_EntityToRemove)
{
EntityInteractionStatus v_ActualStatus = EntityInteractionStatus.Invalid;
if (a_EntityToRemove is null)
{
return(v_ActualStatus);
}
else if (a_EntityToRemove is Player)
{
Player v_PlayerToRemove = a_EntityToRemove as Player;
var v_ReferencedPlayer = Results.SelectMany(p => p.Scores).Where(p => p.IdPlayer == v_PlayerToRemove.Id);
if (v_ReferencedPlayer.ToList().Count == 0)
{
PlayersById.Remove(v_PlayerToRemove.Id);
Players.Remove(v_PlayerToRemove);
m_Logger.Info(String.Format("Removed Player [{0}].", v_PlayerToRemove));
v_ActualStatus = EntityInteractionStatus.Removed;
}
else
{
if (v_PlayerToRemove.Gender == Player.Genders.Male)
{
m_Logger.Error(String.Format(v_RemovalMessage, v_PlayerToRemove.Name, "he", v_ReferencedPlayer.ToList().Count));
}
else if (v_PlayerToRemove.Gender == Player.Genders.Female)
{
m_Logger.Error(String.Format(v_RemovalMessage, v_PlayerToRemove.Name, "she", v_ReferencedPlayer.ToList().Count));
}
else
{
// Just for the case someone adds another gender...
m_Logger.Error(String.Format(v_RemovalMessage, v_PlayerToRemove.Name, "insert pronoun here", v_ReferencedPlayer.ToList().Count));
}
v_ActualStatus = EntityInteractionStatus.NotRemoved;
}
}
else if (a_EntityToRemove is GameFamily)
{
GameFamily v_GameFamilyToRemove = a_EntityToRemove as GameFamily;
var v_GamesWithFamilyToRemove = Games.Where(p => p.IdGamefamilies.Contains(v_GameFamilyToRemove.Id));
if (v_GamesWithFamilyToRemove.ToList().Count == 0)
{
GameFamilies.Remove(v_GameFamilyToRemove);
m_Logger.Info(String.Format("Removed GameFamily [{0}].", v_GameFamilyToRemove));
v_ActualStatus = EntityInteractionStatus.Removed;
}
else
{
m_Logger.Error(String.Format("Cannot remove [{0}] because it is is referenced in {1} games.", v_GameFamilyToRemove.Name, v_GamesWithFamilyToRemove.ToList().Count));
v_ActualStatus = EntityInteractionStatus.NotRemoved;
}
}
else if (a_EntityToRemove is Game)
{
Game v_GameToRemove = a_EntityToRemove as Game;
var v_ReferencesToGame = Results.Where(p => p.IdGame == v_GameToRemove.Id);
if (v_ReferencesToGame.ToList().Count == 0)
{
Games.Remove(v_GameToRemove);
m_Logger.Info(String.Format("Removed Game [{0}].", v_GameToRemove.Name));
v_ActualStatus = EntityInteractionStatus.Removed;
}
else
{
m_Logger.Error(String.Format("Cannot remove [{0}] because it is is referenced in {1} results.", v_GameToRemove.Name, v_ReferencesToGame.ToList().Count));
v_ActualStatus = EntityInteractionStatus.NotRemoved;
}
}
else if (a_EntityToRemove is Location)
{
Location v_LocationToRemove = a_EntityToRemove as Location;
var v_ReferencesToLocation = Results.Where(p => p.IdLocation == v_LocationToRemove.Id);
if (v_ReferencesToLocation.ToList().Count == 0)
{
Locations.Remove(v_LocationToRemove);
m_Logger.Info(String.Format("Removed Location [{0}].", v_LocationToRemove.Name));
v_ActualStatus = EntityInteractionStatus.Removed;
}
else
{
m_Logger.Error(String.Format("Cannot remove {0} because it is is referenced in {1} results.", v_LocationToRemove.Name, v_ReferencesToLocation.ToList().Count));
v_ActualStatus = EntityInteractionStatus.NotRemoved;
}
}
else
{
throw new NotImplementedException(String.Format("Removing entities of type [{0}] is not supported.", a_EntityToRemove.GetType()));
}
return(v_ActualStatus);
}
public void Init()
{
m_Logger.Info("Init Database.");
PlayersById = new Dictionary <Guid, Player>();
foreach (Player i_Player in Players)
{
PlayersById.Add(i_Player.Id, i_Player);
}
m_Logger.Info(String.Format("[{0}] Players loaded.", Players.Count));
GameFamiliesById = new Dictionary <Guid, GameFamily>();
foreach (GameFamily i_Family in GameFamilies)
{
GameFamiliesById.Add(i_Family.Id, i_Family);
m_Logger.Debug("GF: " + i_Family.Id + " " + i_Family.Name);
}
m_Logger.Info(String.Format("[{0}] Game Families loaded.", GameFamilies.Count));
GamesById = new Dictionary <Guid, Game>();
foreach (Game i_Game in Games)
{
//i_Game.Family = GameFamiliesById[i_Game.IdGamefamily];
GamesById.Add(i_Game.Id, i_Game);
}
m_Logger.Info(String.Format("[{0}] Games loaded.", Games.Count));
LocationsById = new Dictionary <Guid, Location>();
foreach (Location i_Location in Locations)
{
LocationsById.Add(i_Location.Id, i_Location);
}
m_Logger.Info(String.Format("[{0}] Locations loaded.", Locations.Count));
foreach (Result i_Result in Results)
{
i_Result.Init();
i_Result.PropertyChanged += Result_PropertyChanged;
foreach (Score i_Score in i_Result.Scores)
{
i_Score.PropertyChanged += Result_PropertyChanged;
}
}
Players = new ObservableCollection <Player>(Players.OrderBy(p => p.Name));
GameFamilies = new ObservableCollection <GameFamily>(GameFamilies.OrderBy(p => p.Name));
Locations = new ObservableCollection <Location>(Locations.OrderBy(p => p.Name));
Games = new ObservableCollection <Game>(Games.OrderBy(p => p.Name));
Results = new ObservableCollection <Result>(Results.OrderByDescending(p => p.Date));
Players.CollectionChanged += DbClasses_CollectionChanged;
GameFamilies.CollectionChanged += DbClasses_CollectionChanged;
Locations.CollectionChanged += DbClasses_CollectionChanged;
Games.CollectionChanged += DbClasses_CollectionChanged;
Results.CollectionChanged += DbClasses_CollectionChanged;
m_Logger.Info(String.Format("[{0}] Results loaded.", Results.Count));
m_Logger.Info("Init Database completed.");
}
