Błąd ['“0,0” value must be a decimal number.'] przy migracji Django

models.py

from django.db import models

class Film(models.Model):

    tytul = models.CharField(max_length=64, null=True, blank=False,default=str,unique=True)
    type = models.CharField(max_length=64,default='Thriller')  
    rok = models.PositiveSmallIntegerField(default=2000)
    opis = models.TextField(default='Opis filmu')

    email = models.EmailField(default='email@op.pl')
    premiera = models.DateField(auto_now=True, null=True,blank=True) 
    imdb_rating = models.DecimalField(max_digits=4, decimal_places=2,null=True)

    plakat = models.ImageField(null=True,blank=True)


    def __str__(self):
        return f" {self.tytul} + ' (' + {str(self.rok)} + ')"

    def tutul_z_rokiem(self):
        return '{} ({})'.format(self.tytul,self.rok)

(venv) PS C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY> py manage.py migrate       
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, filmy_aplikacja, sessions
Running migrations:
  Applying filmy_aplikacja.0003_remove_film_date_film_imdb_rating_film_opis_and_more...Traceback (most recent call last):
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\models\fields\__init__.py", line 1811, in to_python   
    decimal_value = decimal.Decimal(value)
                    ^^^^^^^^^^^^^^^^^^^^^^
decimal.InvalidOperation: [<class 'decimal.ConversionSyntax'>]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\manage.py", line 22, in <module>
    main()
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\core\management\__init__.py", line 442, in execute_from_c
ommand_line
    utility.execute()
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\core\management\__init__.py", line 436, in execute       
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\core\management\base.py", line 413, in run_from_argv     
    self.execute(*args, **cmd_options)
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\core\management\base.py", line 459, in execute
    output = self.handle(*args, **options)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\core\management\base.py", line 107, in wrapper
    res = handle_func(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\core\management\commands\migrate.py", line 357, in handle
    post_migrate_state = executor.migrate(
                         ^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\migrations\executor.py", line 135, in migrate
    state = self._migrate_all_forwards(
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\migrations\executor.py", line 167, in _migrate_all_for
wards
    state = self.apply_migration(
            ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\migrations\executor.py", line 255, in apply_migration 
    state = migration.apply(state, schema_editor)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\migrations\migration.py", line 132, in apply
    operation.database_forwards(
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\migrations\operations\fields.py", line 110, in databas
e_forwards
    schema_editor.add_field(
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\backends\sqlite3\schema.py", line 316, in add_field   
    self._remake_table(model, create_field=field)
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\backends\sqlite3\schema.py", line 145, in _remake_tabl
e
    self.effective_default(create_field)
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\backends\base\schema.py", line 483, in effective_defau
lt
    return field.get_db_prep_save(self._effective_default(field), self.connection)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\models\fields\__init__.py", line 1830, in get_db_prep_
save
    self.to_python(value), self.max_digits, self.decimal_places
    ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\TOMULENIEK\PycharmProjects\DJANGO PODSTAWY\venv\Lib\site-packages\django\db\models\fields\__init__.py", line 1813, in to_python   
    raise exceptions.ValidationError(
django.core.exceptions.ValidationError: ['“0,0” value must be a decimal number.']

```
# Generated by Django 5.1.5 on 2025-01-25 12:06

from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ('filmy_aplikacja', '0002_film_type_alter_film_tytul'),
    ]

    operations = [
        migrations.RemoveField(
            model_name='film',
            name='date',
        ),
        migrations.AddField(
            model_name='film',
            name='imdb_rating',
            field=models.DecimalField(decimal_places=1, default='0,0', max_digits=2),
        ),
        migrations.AddField(
            model_name='film',
            name='opis',
            field=models.TextField(default='Opis filmu'),
        ),
        migrations.AddField(
            model_name='film',
            name='plakat',
            field=models.ImageField(blank=True, height_field=100, null=True, upload_to='plakaty', width_field=100),
        ),
        migrations.AddField(
            model_name='film',
            name='premiera',
            field=models.DateField(auto_now=True, null=True),
        ),
    ]
```