1 files changed, 23 insertions, 0 deletions
diff --git a/django/core/management/sql.py b/django/core/management/sql.py
index 437f8737c3..02bc2603ce 100644
--- a/django/core/management/sql.py
+++ b/django/core/management/sql.py
@@ -9,12 +9,21 @@ from django.apps import apps
 from django.conf import settings
 from django.core.management.base import CommandError
 from django.db import models, router
+from django.db.migrations.loader import MigrationLoader
 from django.utils.deprecation import RemovedInDjango19Warning
 
 
+def check_for_migrations(app_config, connection):
+    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.
@@ -61,6 +70,8 @@ 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()
@@ -122,6 +133,9 @@ 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 +148,9 @@ 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 +159,9 @@ 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 +169,9 @@ 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)