Django provides the comfort database migrations from its version 1.8, with which we can avoid the usage of third party packages like the south. Adding migrations to new apps is straightforward - they come preconfigured to accept migrations, and so just run make migrations once you’ve made some changes. But if your app already has models and database tables, and doesn’t have migrations yet (for example, you created it against a previous Django version) or you got your migrations messed up, you’ll need to convert your app to use migrations. Following are the steps to create initial migrations to your app:
Just go to your corresponding database terminals and delete all the records from you django_migrations table with
delete from django_migrations;
Go to terminal and run remove all files in migrations folder with
rm -rf <app>/migrations/
Reset all the migrations of the Django's built-in apps like admin with the command
python manage.py migrate --fake
For each app run:
python manage.py makemigrations <app>.
Note: Take care of dependencies (models with ForeignKey's should run after their parent model).
To create initial fake migrations just run
python manage.py migrate --fake-initial
With all the above five steps all the initial migrations will be created for the existing database schema. Now you can use the Django's migrations system normally. To test if the migrations are succeeded or not, just add a new field to any of the models and run python manage.py make migrations and then it will create a migration file in the corresponding migrations folder of the corresponding app, and then run python manage.py migrate. If this succeeds our above steps are the success and you can enjoy the beauty of Django's migrations.
To Know more about our Django CRM(Customer Relationship Management) Open Source Package. Check Code
Micropyramid is a software development and cloud consulting partner for enterprise businesses across the world. We work on python, Django, Salesforce, Angular, Reactjs, React Native, MySQL, PostgreSQL, Docker, Linux, Ansible, git, amazon web services. We are Amazon and salesforce consulting partner with 5 years of cloud architect experience. We develop e-commerce, retail, banking, machine learning, CMS, CRM web and mobile applications.
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