Table: User

• Columns
• name (string) PRIMARY KEY
• first_name (string)
• last_name (string)
• email (string)
• username (string)
• USERNAME_FIELD (string) // Not sure what this is exactly but it's in existing model
• Required_Fields (List)
• objects (UserManager)
• Constraints
• Unique: username, email

Table: Tournament

• Columns
• TournmantID (autoincrementing integer) PRIMARY KEY
• GameID (int) references Game (GameID)
• Users (ManytoManyField)
• Name (string)
• StartDate (datetime)
• EndDate (datetime)
• MaxPlayers (integer)
• Description(string)
• Rules (string)
• DrawRule(string)
• Constraints
• Unique: TournamentID
• auto_now_add: StartDate, EndDate
• ManytoManyField: Users
• Foreign Key: GameID

Table: Tournament - User (M-N table)

• Columns
• TournamentID (int)
• UserID (int)
• Status (string, one of ('pending', 'approved', 'rejected'))
• Constraints
• TournamentID, UserID

Table: Match

• Columns
• MatchID (autoincrementing integer) PRIMARY KEY
• TournamentID (int) references Tournament (TournamentID)
• Users (ManytoManyField) references User (UserID)
• MatchStatus (string, one of ('Ongoing', 'Completed, 'Draw'))
• MatchStartDate (datetime)
• MatchEndDate (datetime)
• MatchDuration (string)
• Score (string)
• Constraints
• Unique: MatchID
• auto_now_add: MatchStartDate, MatchEndDate
• Foreign key: TournamentID

Table: Match - User (N-M Table)

• Columns
• MatchID (int)
• UserID (int) references User (UserID)
• Status (string, one of ('Player', 'Spectator'))

Table: Game

• Columns
• GameID (autoincrementing integer) PRIMARY KEY
• GameName (string)

Table: Notification

• Columns:
• NotificationID (autoincrementing integer) PRIMARY KEY
• Content (string)
• TimeStamp (datetime) # DateTimeField with auto_now_add=True
• Visibility (string, one of ('Spectators Only', 'Players Only', 'Both'))
• Users (ManytoManyfield)

Table: Notifications - Users (N-M Tables)

• Columns
• NotificationID (int)
• UserID (int)
• Status (string, one of ('Pending', 'Sent', 'Received'))

Table: Chat

• Columns
• ChatID (autoincrementing integer) PRIMARY KEY
• MatchID (OnetoOneField) references Match (MatchID)

Table: Message

• Columns
• MessageID (autoincrementing integer) PRIMARY KEY
• ChatID (int) references Chat (ChatID)
• UserID (int) references User (UserID)
• Content (string)
• TimeStamp (datetime) # DateTimeField with auto_now_add=True
• Constraints:
• Foreign Key: ChatID, UserID