[1.7.x] Revert "Making SQL management commands migration aware."

This reverts commit cb9c9a7b58.

Backport of 83e7555ffe from master.

django/core/management/commands/sqlsequencereset.py

@@ -3,7 +3,6 @@ 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
 
 
@@ -23,7 +22,6 @@ 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)

django/core/management/sql.py

@@ -12,19 +12,9 @@ from django.db import models, router
 from django.utils.deprecation import RemovedInDjango19Warning
 
 
-def check_for_migrations(app_config, connection):
-    # Inner import to stop tests failing
-    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.
@@ -71,8 +61,6 @@ def sql_create(app_config, style, connection):
 def sql_delete(app_config, style, connection):
     "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()
@@ -134,9 +122,6 @@ 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)
@@ -149,9 +134,6 @@ 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))
@@ -160,9 +142,6 @@ 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))
@@ -170,9 +149,6 @@ 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)
 

tests/commands_sql_migrations/migrations/0001_initial.py

@@ -1,33 +0,0 @@
-# -*- 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,),
-        ),
-    ]

tests/commands_sql_migrations/models.py

@@ -1,10 +0,0 @@
-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)