#28785: Tracking migrations
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Reporter: Ramez Kabbani | Owner: nobody
Type: Uncategorized | Status: new
Component: Migrations | Version: 1.11
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Migrations exist in django in two locations:
1. In the codebase under app_name/migrations
2. As a db entry in django_migrations
I've come across the following scenario where I expected Django to give an
error but it didn't not.
Assume we have 4 migrations for an app, and migration 1 through 3 are
applied.
{{{
# Content of Postgres DB
32 | app_name | 0001_initial
33 | app_name | 0002_migration2
34 | app_name | 0003_migration3
}}}
All migrations except 0001_initial.py were deleted including the folder
pycache. We then run makemigrations
{{{
# Contents of migration folder after makemigrations was ran.
0001_initial.py 0002_name.py __init__.py __pycache__
# Run makemigrations
No Changes Detected
# Output of showmigrations
app_name
[X] 0001_initial
[X] 0002_name
}}}
Contents of Postgres django_migrations, however, remain unchanged still
with an entry for a third migration. I expected an error in one of the
following commands but received none: makemigrations, migrate,
showmigrations.
Also, migrate --fake app_name 0002_name does not lead to the deletion of
0003_migration3 entry in django_migrations
--
Ticket URL: <https://code.djangoproject.com/ticket/28785>
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