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Fixed #22749: Making SQL management commands migration aware.

This commit is contained in:
Víðir Valberg Guðmundsson 2014-05-29 23:03:10 +02:00 committed by Andrew Godwin
parent 6fd455adfc
commit f70f669941
7 changed files with 72 additions and 3 deletions

View File

@ -3,6 +3,7 @@ from __future__ import unicode_literals
from optparse import make_option
from django.core.management.base import AppCommand
from django.core.management.sql import check_for_migrations
from django.db import connections, DEFAULT_DB_ALIAS
@ -22,6 +23,7 @@ class Command(AppCommand):
if app_config.models_module is None:
return
connection = connections[options.get('database')]
check_for_migrations(app_config, connection)
models = app_config.get_models(include_auto_created=True)
statements = connection.ops.sequence_reset_sql(self.style, models)
return '\n'.join(statements)

View File

@ -12,9 +12,19 @@ from django.db import models, router
from django.utils.deprecation import RemovedInDjango19Warning
def check_for_migrations(app_config, connection):
# Inner import, else tests imports it too early as it needs settings
from django.db.migrations.loader import MigrationLoader
loader = MigrationLoader(connection)
if app_config.label in loader.migrated_apps:
raise CommandError("App '%s' has migrations. Only the sqlmigrate and sqlflush commands can be used when an app has migrations." % app_config.label)
def sql_create(app_config, style, connection):
"Returns a list of the CREATE TABLE SQL statements for the given app."
check_for_migrations(app_config, connection)
if connection.settings_dict['ENGINE'] == 'django.db.backends.dummy':
# This must be the "dummy" database backend, which means the user
# hasn't set ENGINE for the database.
@ -58,9 +68,11 @@ def sql_create(app_config, style, connection):
return final_output
def sql_delete(app_config, style, connection):
def sql_delete(app_config, style, connection, close_connection=True):
"Returns a list of the DROP TABLE SQL statements for the given app."
check_for_migrations(app_config, connection)
# This should work even if a connection isn't available
try:
cursor = connection.cursor()
@ -97,7 +109,7 @@ def sql_delete(app_config, style, connection):
finally:
# Close database connection explicitly, in case this output is being piped
# directly into a database client, to avoid locking issues.
if cursor:
if cursor and close_connection:
cursor.close()
connection.close()
@ -122,6 +134,9 @@ def sql_flush(style, connection, only_django=False, reset_sequences=True, allow_
def sql_custom(app_config, style, connection):
"Returns a list of the custom table modifying SQL statements for the given app."
check_for_migrations(app_config, connection)
output = []
app_models = router.get_migratable_models(app_config, connection.alias)
@ -134,6 +149,9 @@ def sql_custom(app_config, style, connection):
def sql_indexes(app_config, style, connection):
"Returns a list of the CREATE INDEX SQL statements for all models in the given app."
check_for_migrations(app_config, connection)
output = []
for model in router.get_migratable_models(app_config, connection.alias, include_auto_created=True):
output.extend(connection.creation.sql_indexes_for_model(model, style))
@ -142,6 +160,9 @@ def sql_indexes(app_config, style, connection):
def sql_destroy_indexes(app_config, style, connection):
"Returns a list of the DROP INDEX SQL statements for all models in the given app."
check_for_migrations(app_config, connection)
output = []
for model in router.get_migratable_models(app_config, connection.alias, include_auto_created=True):
output.extend(connection.creation.sql_destroy_indexes_for_model(model, style))
@ -149,6 +170,9 @@ def sql_destroy_indexes(app_config, style, connection):
def sql_all(app_config, style, connection):
check_for_migrations(app_config, connection)
"Returns a list of CREATE TABLE SQL, initial-data inserts, and CREATE INDEX SQL for the given module."
return sql_create(app_config, style, connection) + sql_custom(app_config, style, connection) + sql_indexes(app_config, style, connection)

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@ -0,0 +1,33 @@
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import models, migrations
class Migration(migrations.Migration):
dependencies = [
]
operations = [
migrations.CreateModel(
name='Comment',
fields=[
('id', models.AutoField(verbose_name='ID', primary_key=True, serialize=False, auto_created=True)),
],
options={
},
bases=(models.Model,),
),
migrations.CreateModel(
name='Book',
fields=[
('id', models.AutoField(verbose_name='ID', primary_key=True, serialize=False, auto_created=True)),
('title', models.CharField(db_index=True, max_length=100)),
('comments', models.ManyToManyField(to='commands_sql_migrations.Comment')),
],
options={
},
bases=(models.Model,),
),
]

View File

@ -0,0 +1,10 @@
from django.db import models
class Comment(models.Model):
pass
class Book(models.Model):
title = models.CharField(max_length=100, db_index=True)
comments = models.ManyToManyField(Comment)

View File

@ -20,7 +20,7 @@ class SQLCommandsMigrationsTestCase(TestCase):
def test_sql_delete(self):
app_config = apps.get_app_config('commands_sql_migrations')
with self.assertRaises(CommandError):
sql_delete(app_config, no_style(), connections[DEFAULT_DB_ALIAS])
sql_delete(app_config, no_style(), connections[DEFAULT_DB_ALIAS], close_connection=False)
def test_sql_indexes(self):
app_config = apps.get_app_config('commands_sql_migrations')