PYTHON

django migrate using db

# Prepare migration using the latest model definitions
python manage.py makemigrations [app_name]

# Apply migrations for specified app using specified database connection (in settings.py)
python manage.py migrate [app_name] --database [database_name]

migrate data django

#record latest model before migration
python3 manage.py makemigrations [app_name]

#migrate to database
python3 manage.py migrate

# configure your database first before migrating default database will be sqlite3

django migrate model

python manage.py makemigrations
python manage.py migrate --fake
python manage.py migrate your_app zero

$ manage.py migrate --fake <appname> zero
$ rm -rf migrations
$ manage.py makemigrations <appname>
$ manage.py migrate --fake

django migrations

$ python manage.py makemigrations
$ python manage.py migrate

django migrations

$ python manage.py makemigrations <application name>
Migrations for 'books':
  books/migrations/0003_auto.py:
    - Alter field author on book
    
$ python manage.py migrate
Operations to perform:
  Apply all migrations: books
Running migrations:
  Rendering model states... DONE
  Applying books.0003_auto... OK

makemigrations and migrate in Django

# Generated by Django 2.2.5 on 2019-09-25 06:00
  
from django.db import migrations, models
  
  
class Migration(migrations.Migration):
    initial = True
  
    dependencies = []
  
    operations = [
        migrations.CreateModel(
            name ='GeeksModel',
            fields =[
                ('id', models.AutoField(auto_created = True,
                  primary_key = True, serialize = False,
                  verbose_name ='ID')),], ),
    ]

migration django

$ python manage.py migrate
Operations to perform:
  Apply all migrations: books
Running migrations:
  Rendering model states... DONE
  Applying books.0003_auto... OK