Re: self.foreign_related_fields[0] IndexError: tuple index out of range

Hi friend,

When I want to create my custom authentication model User. I have got error such as 'FieldDoesNotExist 'userid''.

So, I have deleted all of these previous migration_files, re-create database and makemigrations. But cannot able to migrate again.

On Wednesday, November 27, 2019 at 12:05:24 AM UTC+6, Integr@te System wrote:

Hi friend,

plz check these files: '  # Generated by Django 2.2.3 on 2019-11-26 15:36 ' and another (if u have), to see separating.

On Tue, Nov 26, 2019, 23:44 Ahmad Saki <saki.pr...@gmail.com> wrote:

Hello Dear,

Please explain with more words. How do I solve this problem? What can I do?

On Tuesday, November 26, 2019 at 9:54:26 PM UTC+6, Integr@te System wrote:

Hi man,

And u see error occur again, isn't it?

Do you differ two file that app output when you migrated?

On Tue, Nov 26, 2019, 22:40 Ahmad Saki <saki.pr...@gmail.com> wrote:

organization.Organization model:

from django.db import models

class Organization(models.Model):

   orgid = models.IntegerField(max_length=6, primary_key=True)

   name = models.CharField(max_length=50)

   phone = models.CharField(max_length=20,null=True,blank=True,default=None)

   email = models.CharField(max_length=50,null=True,blank=True,default=None)

   mobile = models.CharField(max_length=20,null=True,blank=True,default=None)

   permanent_address = models.CharField(max_length=200,null=True,blank=True,default=None)

   present_address = models.CharField(max_length=200,null=True,blank=True,default=None)

   remark = models.CharField(max_length=500,null=True,blank=True,default=None)

And migration:

# Generated by Django 2.2.3 on 2019-11-26 15:36

from django.db import migrations, models

class Migration(migrations.Migration):

    initial = True

    dependencies = [

   ]

    operations = [

       migrations.CreateModel(

           name='Organization',

           fields=[

               ('orgid', models.IntegerField(max_length=6, primary_key=True, serialize=False)),

               ('name', models.CharField(max_length=50)),

               ('phone', models.CharField(blank=True, default=None, max_length=20, null=True)),

               ('email', models.CharField(blank=True, default=None, max_length=50, null=True)),

               ('mobile', models.CharField(blank=True, default=None, max_length=20, null=True)),

               ('permanent_address', models.CharField(blank=True, default=None, max_length=200, null=True)),

               ('present_address', models.CharField(blank=True, default=None, max_length=200, null=True)),

               ('remark', models.CharField(blank=True, default=None, max_length=500, null=True)),

           ],

       ),

   ]

On Tuesday, November 26, 2019 at 8:26:13 PM UTC+6, Integr@te System wrote:

hi, inspect your typo and Organization model.

On Tue, Nov 26, 2019, 16:31 Ahmad Saki <saki.pr...@gmail.com> wrote:

Dear,

Thanks for your response.

I use the foreign key field 'orgid' or not but got the same error. If I want to use this then where is my fault for this error!

On Tuesday, November 26, 2019 at 12:11:58 PM UTC+6, Integr@te System wrote:

Hi man,

Check 'class UserManager(): ......orgid = org_obj '

On Tue, Nov 26, 2019, 01:40 Ahmad Saki <saki.pr...@gmail.com> wrote:

My custom authentication model in django:

from django.db import models
from django.contrib.auth.models import (
AbstractBaseUser, BaseUserManager
)
from organization.models import Organization


class UserManager(BaseUserManager):
# use_in_migrations = True

# python manage.py createsuperuser
def create_user(self, orgid, username, email,  password=None, is_admin=False, is_staff=False, is_active=True):
    if not orgid:
        raise ValueError("Organization of user must not empty")
    elif not username:
        raise ValueError("User must have an username")
    elif not email:
        raise ValueError("User must have an email address")

    org_obj = Organization.objects.all(orgid=orgid)
    user_obj = self.model(
        orgid=org_obj,
        username=username,
        email = self.normalize_email(email),
        password=password
        )
    user_obj.set_password(password)
    user_obj.admin=is_admin
    user_obj.staff=is_staff
    user_obj.active=is_active
    user_obj.save(using=self._db)
    return user_obj

# python manage.py createsuperuser
def create_superuser(self, orgid, username, email, password=None):
    user = self.create_user(orgid,username,email,password=password,is_admin=True,is_staff=True,is_active=True)
    return user

def create_staffuser(self, orgid, username, email, password=None):
    user = self.create_user(orgid,username,email,password=password,is_admin=False,is_staff=True,is_active=True)
    return user

class User(AbstractBaseUser):
orgid       = models.ForeignKey(Organization, max_length=6, on_delete=models.CASCADE)
username    = models.CharField(primary_key=True, max_length=50) 
email       = models.EmailField(max_length=255, unique=True, null=False, blank=False)
admin       = models.BooleanField(default=False)
staff       = models.BooleanField(default=False)
active      = models.BooleanField(default=True)
date_joined = models.DateTimeField(auto_now_add=True)

objects = UserManager()

USERNAME_FIELD = "username"
# REQUIRED_FIELDS must contain all required fields on your User model, 
# but should not contain the USERNAME_FIELD or password as these fields will always be prompted for.
REQUIRED_FIELDS = ['orgid','email']

class Meta:
    app_label = "user"
    db_table = "user"

def __str__(self):
    return self.username

def get_full_name(self):
    return self.username

def get_short_name(self):
    return self.username

# this methods are require to login super user from admin panel
def has_perm(self, perm, obj=None):
    return self.is_staff

# this methods are require to login super user from admin panel
def has_module_perms(self, app_label):
    return self.is_staff

@property
def is_admin(self):
    return self.admin

@property
def is_staff(self):
    return self.staff

@property
def is_active(self):
    return self.active

When I create migrations it creates:

from django.db import migrations, models
import django.db.models.deletion
import user.models


class Migration(migrations.Migration):

initial = True

dependencies = [
    ('organization', '0001_initial'),
]

operations = [
    migrations.CreateModel(
        name='User',
        fields=[
            ('password', models.CharField(max_length=128, verbose_name='password')),
            ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
            ('username', models.CharField(max_length=50, primary_key=True, serialize=False)),
            ('email', models.EmailField(max_length=255, unique=True)),
            ('admin', models.BooleanField(default=False)),
            ('staff', models.BooleanField(default=False)),
            ('active', models.BooleanField(default=True)),
            ('date_joined', models.DateTimeField(auto_now_add=True)),
            ('orgid', models.ForeignKey(max_length=6, on_delete=django.db.models.deletion.CASCADE, to='organization.Organization')),
        ],
        options={
            'db_table': 'user',
        },
        managers=[
            ('objects', user.models.UserManager()),
        ],
    ),
]

But when I want to migrate it gives me an error below. Please help me anyone..

Operations to perform:
  Apply all migrations: admin, auth, contenttypes, organization, sessions, user
Running migrations:
  Applying admin.0004_auto_20191118_2315...Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 83, in wrapped
    res = handle_func(*args, **kwargs)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\commands\migrate.py", line 234, in handle
    fake_initial=fake_initial,
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\migrations\executor.py", line 117, in migrate
    state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\migrations\executor.py", line 147, in _migrate_all_forwards
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\migrations\executor.py", line 245, in apply_migration
    state = migration.apply(state, schema_editor)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\migrations\migration.py", line 124, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\migrations\operations\fields.py", line 249, in database_forwards
    schema_editor.alter_field(from_model, from_field, to_field)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\backends\base\schema.py", line 507, in alter_field
    new_db_params = new_field.db_parameters(connection=self.connection)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\fields\related.py", line 966, in db_parameters
    return {"type": self.db_type(connection), "check": self.db_check(connection)}
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\fields\related.py", line 963, in db_type
    return self.target_field.rel_db_type(connection=connection)
  File "C:\Users\ZAB-SAKI\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\fields\related.py", line 878, in target_field
    return self.foreign_related_fields[0]
IndexError: tuple index out of range

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