Support sort snapshots with name

Cinder now doesn't support sort snapshots with "name".
This patch adds the support to keep the same with volume
does.

Change-Id: I79d160292bc190c643bbe11668cc49ba11a23bcb
Closes-bug: #1659504

cinder/api/openstack/api_version_request.py

@@ -80,6 +80,7 @@ REST_API_VERSION_HISTORY = """
     * 3.27 - Add attachment API
     * 3.28 - Add filters support to get_pools
     * 3.29 - Add filter, sorter and pagination support in group snapshot.
+    * 3.30 - Support sort snapshots with "name".
 
 """
 
@@ -88,7 +89,7 @@ REST_API_VERSION_HISTORY = """
 # minimum version of the API supported.
 # Explicitly using /v1 or /v2 enpoints will still work
 _MIN_API_VERSION = "3.0"
-_MAX_API_VERSION = "3.29"
+_MAX_API_VERSION = "3.30"
 _LEGACY_API_VERSION1 = "1.0"
 _LEGACY_API_VERSION2 = "2.0"
 

cinder/api/openstack/rest_api_version_history.rst

@@ -292,3 +292,7 @@ user documentation.
 3.29
 ----
   Add filter, sorter and pagination support in group snapshot.
+
+3.30
+----
+  Support sort snapshots with "name".

cinder/api/v3/snapshots.py

@@ -81,6 +81,10 @@ class SnapshotsController(snapshots_v2.SnapshotsController):
         # process filters
         self._process_filters(req, context, search_opts)
 
+        req_version = req.api_version_request
+        if req_version.matches("3.30", None) and 'name' in sort_keys:
+            sort_keys[sort_keys.index('name')] = 'display_name'
+
         # NOTE(thingee): v3 API allows name instead of display_name
         if 'name' in search_opts:
             search_opts['display_name'] = search_opts.pop('name')

cinder/tests/unit/api/v3/test_snapshots.py

@@ -107,23 +107,39 @@ class SnapshotApiTest(test.TestCase):
         self.assertRaises(exception.SnapshotNotFound,
                           self.controller.show, req, snapshot_id)
 
-    def _create_snapshot_with_metadata(self, metadata):
+    def _create_snapshot(self, name=None, metadata=None):
         """Creates test snapshopt with provided metadata"""
         req = fakes.HTTPRequest.blank('/v3/snapshots')
         snap = {"volume_size": 200,
                 "volume_id": fake.VOLUME_ID,
-                "display_name": "Volume Test Name",
+                "display_name": name or "Volume Test Name",
                 "display_description": "Volume Test Desc",
                 "availability_zone": "zone1:host1",
-                "host": "fake-host",
-                "metadata": metadata}
+                "host": "fake-host"}
+        if metadata:
+            snap["metadata"] = metadata
         body = {"snapshot": snap}
         self.controller.create(req, body)
 
+    def test_snapshot_list_with_sort_name(self):
+        self._create_snapshot(name='test1')
+        self._create_snapshot(name='test2')
+
+        req = fakes.HTTPRequest.blank('/v3/snapshots?sort_key=name',
+                                      version='3.29')
+        self.assertRaises(exception.InvalidInput, self.controller.detail, req)
+
+        req = fakes.HTTPRequest.blank('/v3/snapshots?sort_key=name',
+                                      version='3.30')
+        res_dict = self.controller.detail(req)
+        self.assertEqual(2, len(res_dict['snapshots']))
+        self.assertEqual('test2', res_dict['snapshots'][0]['name'])
+        self.assertEqual('test1', res_dict['snapshots'][1]['name'])
+
     def test_snapshot_list_with_one_metadata_in_filter(self):
         # Create snapshot with metadata key1: value1
         metadata = {"key1": "val1"}
-        self._create_snapshot_with_metadata(metadata)
+        self._create_snapshot(metadata=metadata)
 
         # Create request with metadata filter key1: value1
         req = create_snapshot_query_with_metadata('{"key1":"val1"}', '3.22')
@@ -150,7 +166,7 @@ class SnapshotApiTest(test.TestCase):
     def test_snapshot_list_with_multiple_metadata_in_filter(self):
         # Create snapshot with metadata key1: value1, key11: value11
         metadata = {"key1": "val1", "key11": "val11"}
-        self._create_snapshot_with_metadata(metadata)
+        self._create_snapshot(metadata=metadata)
 
         # Create request with metadata filter key1: value1, key11: value11
         req = create_snapshot_query_with_metadata(
@@ -182,7 +198,7 @@ class SnapshotApiTest(test.TestCase):
     def test_snapshot_list_with_metadata_unsupported_microversion(self):
         # Create snapshot with metadata key1: value1
         metadata = {"key1": "val1"}
-        self._create_snapshot_with_metadata(metadata)
+        self._create_snapshot(metadata=metadata)
 
         # Create request with metadata filter key2: value2
         req = create_snapshot_query_with_metadata('{"key2":"val2"}', '3.21')

releasenotes/notes/support_sort_snapshot_with_name-7b66a2d8e587275d.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Support to sort snapshots with "name".