#32205: ORM migrations after squash, command sqlmigrate will be error
-------------------------------------+-------------------------------------
Reporter: 老广 | Owner: nobody
Type: | Status: new
Uncategorized |
Component: Database | Version: 3.1
layer (models, ORM) |
Severity: Normal | Keywords: sqlmigrate
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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After upgrade django 2.2 to 3.1, If migrations was squashed, then
sqlmigrate cause error. If back to 2.2, error lost.
The migrate file error refer is in squash file.
**Error stack**
{{{
File "/Users/guang/vm/py/py36/lib/python3.6/site-
packages/django/core/management/commands/sqlmigrate.py", line 37, in
handle
loader = MigrationLoader(connection, replace_migrations=False)
File "/Users/guang/vm/py/py36/lib/python3.6/site-
packages/django/db/migrations/loader.py", line 53, in __init__
self.build_graph()
File "/Users/guang/vm/py/py36/lib/python3.6/site-
packages/django/db/migrations/loader.py", line 255, in build_graph
self.graph.validate_consistency()
File "/Users/guang/vm/py/py36/lib/python3.6/site-
packages/django/db/migrations/graph.py", line 195, in validate_consistency
[n.raise_error() for n in self.node_map.values() if isinstance(n,
DummyNode)]
File "/Users/guang/vm/py/py36/lib/python3.6/site-
packages/django/db/migrations/graph.py", line 195, in <listcomp>
[n.raise_error() for n in self.node_map.values() if isinstance(n,
DummyNode)]
File "/Users/guang/vm/py/py36/lib/python3.6/site-
packages/django/db/migrations/graph.py", line 58, in raise_error
raise NodeNotFoundError(self.error_message, self.key,
origin=self.origin)
django.db.migrations.exceptions.NodeNotFoundError: Migration
assets.0020_auto_20180816_1652 dependencies reference nonexistent parent
node ('assets', '0019_auto_20180816_1320')
}}}
**Migrations**
source code:
https://github.com/jumpserver/jumpserver/blob/master/apps/assets/migrations/0020_auto_20180816_1652.py
{{{
# Generated by Django 2.0.7 on 2018-08-16 08:52
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('assets', '0019_auto_20180816_1320'),
]
operations = [
migrations.AlterField(
model_name='adminuser',
name='org_id',
field=models.CharField(blank=True, db_index=True, default='',
max_length=36, verbose_name='Organization'),
),
}}}
The squash migrations:
source code:
https://github.com/jumpserver/jumpserver/blob/master/apps/assets/migrations/0010_auto_20180307_1749_squashed_0019_auto_20180816_1320.py
{{{
class Migration(migrations.Migration):
replaces = [('assets', '0010_auto_20180307_1749'), ('assets',
'0011_auto_20180326_0957'), ('assets', '0012_auto_20180404_1302'),
('assets', '0013_auto_20180411_1135'), ('assets',
'0014_auto_20180427_1245'), ('assets', '0015_auto_20180510_1235'),
('assets', '0016_auto_20180511_1203'), ('assets',
'0017_auto_20180702_1415'), ('assets', '0018_auto_20180807_1116'),
('assets', '0019_auto_20180816_1320')]
dependencies = [
('assets', '0009_auto_20180307_1212'),
]
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/32205>
Django <https://code.djangoproject.com/>
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