#28541: migration introducing a UUID primary key fails on sqlite3
--------------------------------------+------------------------
Reporter: karyon | Owner: nobody
Type: Bug | 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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the migration here (from https://github.com/fsr-itse/EvaP/pull/1002/files)
{{{
# -*- coding: utf-8 -*-
# Generated by Django 1.11.3 on 2017-07-03 18:31
from __future__ import unicode_literals
from django.db import migrations, models
import uuid
def fill_textanswer_uuid(apps, schema_editor):
db_alias = schema_editor.connection.alias
TextAnswer = apps.get_model('evaluation', 'TextAnswer')
for obj in TextAnswer.objects.using(db_alias).all():
obj.uuid = uuid.uuid4()
obj.save()
class Migration(migrations.Migration):
""" this migration changes a model from a auto-generated id field to a
uuid-primary key. """
operations = [
migrations.AddField(
model_name='textanswer',
name='uuid',
field=models.UUIDField(null=True),
),
migrations.RunPython(fill_textanswer_uuid,
migrations.RunPython.noop),
migrations.AlterField(
model_name='textanswer',
name='uuid',
field=models.UUIDField(primary_key=False, default=uuid.uuid4,
serialize=False, editable=False),
),
migrations.RemoveField('TextAnswer', 'id'),
migrations.RenameField(
model_name='textanswer',
old_name='uuid',
new_name='id'
),
migrations.AlterField(
model_name='textanswer',
name='id',
field=models.UUIDField(primary_key=True, default=uuid.uuid4,
serialize=False, editable=False),
),
]
}}}
fails when running with sqlite3. postgres works fine. when commenting out
the last two operations in the migration, it works.
Traceback :
{{{
Traceback (most recent call last):
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/utils.py", line 63, in execute
return self.cursor.execute(sql)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/sqlite3/base.py", line 326, in execute
return Database.Cursor.execute(self, query)
sqlite3.OperationalError: duplicate column name: id
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/core/management/__init__.py", line 363, in
execute_from_command_line
utility.execute()
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/core/management/__init__.py", line 355, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/core/management/commands/migrate.py", line 204, in handle
fake_initial=fake_initial,
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/migrations/executor.py", line 115, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake,
fake_initial=fake_initial)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/migrations/executor.py", line 145, in
_migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake,
fake_initial=fake_initial)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/migrations/executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/migrations/migration.py", line 129, in apply
operation.database_forwards(self.app_label, schema_editor, old_state,
project_state)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/migrations/operations/fields.py", line 299, in
database_forwards
to_model._meta.get_field(self.new_name),
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/base/schema.py", line 514, in alter_field
old_db_params, new_db_params, strict)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/sqlite3/schema.py", line 262, in _alter_field
self._remake_table(model, alter_field=(old_field, new_field))
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/sqlite3/schema.py", line 198, in _remake_table
self.create_model(temp_model)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/base/schema.py", line 303, in create_model
self.execute(sql, params or None)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/base/schema.py", line 120, in execute
cursor.execute(sql, params)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/utils.py", line 80, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/utils.py", line 63, in execute
return self.cursor.execute(sql)
File "/home/vagrant/.local/lib/python3.4/site-
packages/django/db/backends/sqlite3/base.py", line 326, in execute
return Database.Cursor.execute(self, query)
django.db.utils.OperationalError: duplicate column name: id
}}}
sql query in question:
{{{
CREATE TABLE "evaluation_textanswer" ("id" integer NOT NULL PRIMARY KEY
AUTOINCREMENT, "reviewed_answer" text NULL, "original_answer" text NOT
NULL, "contribution_id" integer NOT NULL REFERENCES
"evaluation_contribution" ("id"), "question_id" integer NOT NULL
REFERENCES "evaluation_question" ("id"), "state" varchar(2) NOT NULL, "id"
char(32) NOT NULL); args=None
}}}
so yeah, it obviously tries to create two "id" columns.
full console output with (sqlite)-sql statements:
https://pastebin.com/r6CF22GJ
--
Ticket URL: <https://code.djangoproject.com/ticket/28541>
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