make model modules itself import each other with relative imports

app/models/__init__.py

@@ -1,16 +1,11 @@
-from app import login
 
-from app.models.game import Game
-from app.models.game_player import GamePlayer
-from app.models.game_state import GameState
-from app.models.location import Location, LocationEncoder
-from app.models.notification_player import NotificationPlayer
-from app.models.objective import Objective, ObjectiveMinimalEncoder
-from app.models.player_caught_player import PlayerCaughtPlayer
-from app.models.player_found_objective import PlayerFoundObjective
-from app.models.role import Role
-from app.models.user import User
-
-@login.user_loader
-def load_user(id):
-    return User.query.get(int(id))
+from .game import Game
+from .game_player import GamePlayer
+from .game_state import GameState
+from .location import Location, LocationEncoder
+from .notification_player import NotificationPlayer
+from .objective import Objective, ObjectiveMinimalEncoder
+from .player_caught_player import PlayerCaughtPlayer
+from .player_found_objective import PlayerFoundObjective
+from .role import Role
+from .user import User

app/models/game.py

@@ -1,6 +1,8 @@
 from sqlalchemy.ext.associationproxy import association_proxy
 from app import db
-from app.models import GameState, GamePlayer, Role
+from .game_state import GameState
+from .game_player import GamePlayer
+from .role import Role
 
 class Game(db.Model):
     __tablename__ = 'game'

app/models/game_player.py

@@ -1,7 +1,10 @@
 from sqlalchemy.ext.associationproxy import association_proxy
 
 from app import db
-from app.models import Role, NotificationPlayer, PlayerFoundObjective, PlayerCaughtPlayer
+from .role import Role
+from .notification_player import NotificationPlayer
+from .player_found_objective import PlayerFoundObjective
+from .player_caught_player import PlayerCaughtPlayer
 
 class GamePlayer(db.Model):
     __tablename__ = 'game_player'

app/models/notification.py

@@ -2,7 +2,7 @@ from sqlalchemy.ext.associationproxy import association_proxy
 from sqlalchemy.sql import func
 
 from app import db
-from app.models import NotificationPlayer
+from .notification_player import NotificationPlayer
 
 class Notification(db.Model):
     __tablename__ = 'notification'

app/models/objective.py

@@ -3,7 +3,8 @@ from json import JSONEncoder
 from sqlalchemy.ext.associationproxy import association_proxy
 
 from app import db
-from app.models import PlayerFoundObjective, Role
+from .player_found_objective import PlayerFoundObjective
+from .role import Role
 
 class Objective(db.Model):
     """ !Always call set_hash after() creating new instance! """

app/models/user.py

@@ -5,8 +5,8 @@ from flask_login import UserMixin
 from sqlalchemy.ext.associationproxy import association_proxy
 from werkzeug.security import generate_password_hash, check_password_hash
 
-from app import db
-from app.models import GamePlayer, PlayerFoundObjective, PlayerCaughtPlayer, NotificationPlayer, Role
+from app import db, login
+from app.models import GamePlayer, Role
 
 class User(UserMixin, db.Model):
     """ !Always call set_auth_hash() after creating new instance! """
@@ -24,10 +24,6 @@ class User(UserMixin, db.Model):
         creator=lambda game: GamePlayer(game=game))
 
 
-
-
-
-
     locations = db.relationship(
         'Location',
         lazy='select',
@@ -78,3 +74,8 @@ class User(UserMixin, db.Model):
     def delete_orphans():
         User.query.filter(~User.user_games.any()).delete()
         db.session.commit()
+
+
+@login.user_loader
+def load_user(id):
+    return User.query.get(int(id))