Fix backup import

During importing backup, Cinder finds out the backup
with same id, including deleted backup. There is problems
in current codes to get backup.

This patch is to transfer read_deleted parameter in
backup_get.

Change-Id: Ie13dfe5980b1c60b44e03267b88cfc056b30043b
Closes-bug: #1554055

cinder/db/sqlalchemy/api.py

@@ -3664,7 +3664,9 @@ def volume_glance_metadata_delete_by_snapshot(context, snapshot_id):
 
 @require_context
 def backup_get(context, backup_id, read_deleted=None, project_only=True):
-    return _backup_get(context, backup_id)
+    return _backup_get(context, backup_id,
+                       read_deleted=read_deleted,
+                       project_only=project_only)
 
 
 def _backup_get(context, backup_id, session=None, read_deleted=None,

cinder/tests/unit/test_db_api.py

@@ -26,8 +26,10 @@ from cinder import context
 from cinder import db
 from cinder.db.sqlalchemy import api as sqlalchemy_api
 from cinder import exception
+from cinder import objects
 from cinder import quota
 from cinder import test
+from cinder.tests.unit import fake_constants
 
 THREE = 3
 THREE_HUNDREDS = 300
@@ -2010,6 +2012,18 @@ class DBAPIBackupTestCase(BaseTest):
             backup_get = db.backup_get(self.ctxt, backup['id'])
             self._assertEqualObjects(backup, backup_get)
 
+    def test_backup_get_deleted(self):
+        backup_dic = {'user_id': 'user',
+                      'project_id': 'project',
+                      'volume_id': fake_constants.volume_id,
+                      'size': 1,
+                      'object_count': 1}
+        backup = objects.Backup(self.ctxt, **backup_dic)
+        backup.create()
+        backup.destroy()
+        backup_get = db.backup_get(self.ctxt, backup.id, read_deleted='yes')
+        self.assertEqual(backup.id, backup_get.id)
+
     def tests_backup_get_all(self):
         all_backups = db.backup_get_all(self.ctxt)
         self._assertEqualListsOfObjects(self.created, all_backups)