InterviewSolution
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Where are Django migrations stored? |
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Answer» In Django, migrations are a way of propagating changes made in the model into the database schema. Django migrations can be created manually by running certain commands, but migrations automate the task of applying changes to the database. Django Migrations can be used as a version control system for database and Model. Migration keeps track of changes DONE in application Models/Table like adding a FIELD, deleting a model, etc. AUTOMATICALLY generated migrations are used to apply changes to the database schema and to apply changes in data, you need to manually write the data migrations. Migrations in Django are STORED as an on-disk format, referred to as “migration files”. These files are just like NORMAL Python files with an agreed-upon object layout, written in a declarative style. Below is the format of a basic migration file: from django.db import migrations, models class Migration(migrations.Migration): dependencies = [('migrations', '0001_initial')] operations = [ migrations.DeleteModel('Tribble'), migrations.AddField('Author', 'rating', models.IntegerField(default=0)), ] |
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