Mysql integrity error 1452 on insert - mysql

Question

select * from memory_games_game; gives me following table:
select * from memory_games_game_state;gives me following table:
I have a stored proc as bellow:
delimiter //
CREATE PROCEDURE get_game_by_user_id(
p_user_id int, p_game_id int
)
BEGIN
insert into memory_games_game_state(user_id, game_id, level, progress)
SELECT 24 as user_id,
game.game_type as game_id,
1 as level,
0 as progress
FROM memory_games_game game
left outer join memory_games_game_state gameState on
game.game_type=gameState.game_id and
gameState.user_id=24
where game.level=1 and gameState.user_id is null;
if p_game_id = -1 then
SELECT gameState.level, game_type, `current_date`
FROM memory_games_game game join memory_games_game_state gameState on
game.game_type=gameState.game_id and
gameState.user_id=24 and
game.level=gameState.level;
else
SELECT gameState.level, game_type, `current_date`
FROM memory_games_game game join memory_games_game_state gameState on
game.game_type=gameState.game_id and
gameState.user_id=p_user_id and
game.level=gameState.level
WHERE game_type=12;
end if;
END
//
The first insert inserts the records into memory_games_game_statetable.
This insert is successful for game_id from 8 to 11 however, it fails for 12 with following error:
I am able to insert records in table memory_games_gamefor game_type 12 which is nothing but game_id in the other table i.e. memory_games_game_state
What's going wrong?
UPDATE:
My django models:
class Game(models.Model):
#Field for storing game type
GAME_TYPE_CHOICES = (
(8, 'Simon Game'),
(9, 'Pinpoint reaction'),
(10, 'Loslassen'),
(11, 'Word pair'),
(12, 'Wortschatz')
)
game_type = models.IntegerField(choices=GAME_TYPE_CHOICES)
level = models.IntegerField(default='1')
#This helps to print in admin interface
def __str__(self):
return u"%s level %s" % (self.get_game_type_display(), self.level)
class Game_state(models.Model):
game = models.ForeignKey(Game, blank=True, null=True)
user = models.ForeignKey(User, blank=True, null=True)
level = models.IntegerField(default='1')
progress = models.IntegerField(default='0')
current_date = models.DateField(auto_now=True)
class Game_state_ui_model(models.Model):
GAME_TYPE_CHOICES = (
(8, 'Simon Game'),
(9, 'Pinpoint reaction'),
(10, 'Loslassen'),
(11, 'Word pair'),
(12, 'Wortschatz')
)
game_type = models.IntegerField(choices=GAME_TYPE_CHOICES)
level = models.IntegerField()
user_id = models.IntegerField(default='0')
current_date = models.DateField(auto_now=True)
# static method to fetch games for a paricular user
#staticmethod
def fetch_games(user_id, game_id):
print("Fetching games in model")
# create a cursor
cur = connection.cursor()
# execute the stored procedure passing in
# search_string as a parameter
cur.callproc('get_game_by_user_id', [user_id, game_id,])
# grab the results
results = cur.fetchall()
cur.close()
Game_state_list=[]
for row in results:
print("Get game", row)
Gs = Game_state_ui_model()
Gs.level=row[0]
Gs.game_type=row[1]
Gs.current_date=row[2]
Game_state_list.append(Gs)
return Game_state_list

Answer 1

As the error states, game_id references memory_games_game.id; NOT memory_games_game.game_type.
The thinking that "game_type 12 which is nothing but game_id in the other table i.e. memory_games_game_state" is incorrect.
You need a row in memory_games_game with id = 12.

Answer 2

I dropped all the tables and did migration again, which somehow solved the problem. I didn't change anything else.