TypeError: int() Argument muss eine Zeichenfolge, ein Byte-ähnliches Objekt oder eine Zahl sein, nicht datetime.datetime

Question

TypeError: int() Argument muss eine Zeichenfolge, ein Byte-ähnliches Objekt oder eine Zahl, nicht Datetime sein. datetime

Okay .. Ich habe die komplette Datenbank gelöscht. GERADE hat meinen PC neu gestartet.

Models.py

from django.db import models 
from django.core.urlresolvers import reverse 


class Register(models.Model): 
    first_name = models.CharField(max_length=50) 
    last_name = models.CharField(max_length=50) 
    username = models.CharField(max_length=50) 
    password = models.CharField(max_length=50) 
    confirm_password = models.CharField(max_length=50) 
    email = models.EmailField(max_length=100) 
    position = models.CharField(max_length=50) 

def get_absolute_url(self): 
    return reverse('user:register', kwargs={'pk': self.pk}) 


class Login(models.Model): 
     username = models.CharField(max_length=50) 
     password = models.CharField(max_length=50) 

    def __str__(self): 
      login = {'username': self.username, 'password': self.password} 
      return login 

Ich gründe nicht Primärschlüssel noch Fremdschlüssel, aber noch ist es nervt mich. Ich suchte und versuchte andere Optionen, aber kann immer noch nicht Problem und Lösung herausfinden. makemigrations gibt keinen Fehler, aber Migrationsbefehl gibt.

Voll Stack:

D:\Python Projects\Project_Management>python manage.py makemigrations user 
No changes detected in app 'user' 
D:\Python Projects\Project_Management>python manage.py migrate 
Operations to perform: 
Apply all migrations: contenttypes, admin, sessions, auth, user 
Running migrations: 
Rendering model states... DONE 
Applying user.0003_auto_20160911_0013...Traceback (most recent call last): 
File "manage.py", line 10, in <module> 
execute_from_command_line(sys.argv) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\management\__init__.py", line 349, in execute_from_command_line 
utility.execute() 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\management\__init__.py", line 341, in execute 
self.fetch_command(subcommand).run_from_argv(self.argv) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\management\base.py", line 290, in run_from_argv 
self.execute(*args, **cmd_options) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\management\base.py", line 339, in execute 
output = self.handle(*args, **options) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\management\commands\migrate.py", line 177, in handle 
executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\migrations\executor.py", line 92, in migrate 
self._migrate_all_forwards(plan, full_plan, fake=fake, fake_initial=fake_initial) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\migrations\executor.py", line 121, in _migrate_all_forwards 
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\migrations\executor.py", line 198, in apply_migration 
state = migration.apply(state, schema_editor) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\migrations\migration.py", line 123, in apply 
operation.database_forwards(self.app_label, schema_editor, old_state, project_state) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\migrations\operations\fields.py", line 62, in database_forwards 
field, 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\backends\base\schema.py", line 382, in add_field 
definition, params = self.column_sql(model, field, include_default=True) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\backends\base\schema.py", line 145, in column_sql 
default_value = self.effective_default(field) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\backends\base\schema.py", line 210, in effective_default 
default = field.get_db_prep_save(default, self.connection) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\models\fields\related.py", line 904, in get_db_prep_save 
return self.target_field.get_db_prep_save(value, connection=connection) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\models\fields\__init__.py", line 736, in get_db_prep_save 
prepared=False) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\models\fields\__init__.py", line 979, in get_db_prep_value 
value = self.get_prep_value(value) 
File "C:\Users\Vic\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\db\models\fields\__init__.py", line 987, in get_prep_value 
return int(value) 
TypeError: int() argument must be a string, a bytes-like object or a number, not 'datetime.datetime' 

settings.py

DATABASES = { 
'default': { 
    'ENGINE': 'django.db.backends.postgresql', 
    'NAME': 'Project', 
    'USER': 'postgres', 
    'PASSWORD': 'vikram', 
    'HOST': '127.0.0.1', 
    'PORT': '5433', 
} 
} 

manage.py

#!/usr/bin/env python 
import os 
import sys 

if __name__ == "__main__": 
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "Project_Management.settings") 

from django.core.management import execute_from_command_line 

execute_from_command_line(sys.argv) 

0003_auto_20160911_0013.py

# -*- coding: utf-8 -*- 
# Generated by Django 1.10 on 2016-09-10 18:43 
from __future__ import unicode_literals 

import datetime 
from django.db import migrations, models 
import django.db.models.deletion 
from django.utils.timezone import utc 


class Migration(migrations.Migration): 

dependencies = [ 
    ('user', '0002_auto_20160910_1740'), 
] 

operations = [ 
    migrations.RemoveField(
     model_name='login', 
     name='id', 
    ), 
    migrations.RemoveField(
     model_name='register', 
     name='id', 
    ), 
    migrations.AddField(
     model_name='login', 
     name='user_id', 
     field=models.ForeignKey(default=datetime.datetime(2016, 9, 10, 18, 43, 28, 263522, tzinfo=utc), on_delete=django.db.models.deletion.CASCADE, primary_key=True, related_name='login_id', serialize=False, to='user.Register'), 
     preserve_default=False, 
    ), 
    migrations.AddField(
     model_name='register', 
     name='user_id', 
     field=models.IntegerField(default=1, primary_key=True, serialize=False), 
     preserve_default=False, 
    ), 
    migrations.AlterField(
     model_name='login', 
     name='password', 
     field=models.CharField(max_length=50), 
    ), 
    migrations.AlterField(
     model_name='login', 
     name='username', 
     field=models.CharField(max_length=50), 
    ), 
    migrations.AlterField(
     model_name='register', 
     name='username', 
     field=models.CharField(max_length=50), 
    ), 
] 

Ich erstellte ganz neue Datenbank .. Bitte helfen .. Vielen Dank im Voraus.

Answer 1

Sie definieren einen Standard Wert eines ForeignKey ein datetime Objekt zu sein. A ForeignKey sollte ein Integer sein, der die ID einer anderen Tabelle darstellt.

Das Problem ist in diesem Stück Code

migrations.AddField(
    model_name='login', 
    name='user_id', 
    field=models.ForeignKey(default=datetime.datetime(2016, 9, 10, 18, 43, 28, 263522, tzinfo=utc), on_delete=django.db.models.deletion.CASCADE, primary_key=True, related_name='login_id', serialize=False, to='user.Register'), 
    preserve_default=False, 
), 

Insbesondere

field=models.ForeignKey(default=datetime.datetime(2016, 9, 10, 18, 43, 28, 263522, tzinfo=utc), on_delete=django.db.models.deletion.CASCADE, primary_key=True, related_name='login_id', serialize=False, to='user.Register') 

Änderung der default Argument der Wert der ID der Reihe von dieser datetime Sie verwiesen vertreten zu sein.