python - how to configure django to run migration files in a specific order -

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i have project requires me insert initial data database on migration. works fine except need tell django insert specific data linked migration file before running another.

for example, lets have 2 migration files, , b, , each attached models modela , modelb respectively. migration works fine, b, automatically generating sql statement requires me use modela.objects.get(id=id) while generating statements, error modela.doesnotexist, means migration hasn't been saved.

is there way can ensure data inserted migration has been saved before proceeding run migration b?

as @tom-dalton mentioned way go through dependencies.

you can see example of dependency in migration file here in docs.

they written in following format:

from django.db import migrations, models  class migration(migrations.migration):      dependencies = [("your_app_name", "migration_file_name")]      operations = [         # migration operations here     ]

you can find migration file name looking in migrations folder of project.

finally need follow data migration process access modela data in new migration.


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