Show first and last node ctime for verdi storage info --detailed (#6829)

Co-authored-by: Julian Geiger <[email protected]>
Co-authored-by: Daniel Hollas <[email protected]>

Author: 3 people

src/aiida/orm/implementation/storage_backend.py

@@ -471,6 +471,22 @@ def get_orm_entities(self, detailed: bool = False) -> dict:
         count = QueryBuilder(self).append(Node).count()
         data['Nodes'] = {'count': count}
         if detailed:
+            first_time = (
+                QueryBuilder(self)
+                .append(Node, project=['ctime'], tag='node')
+                .order_by({'node': {'ctime': 'asc'}})
+                .first(flat=True)
+            )
+            last_time = (
+                QueryBuilder(self)
+                .append(Node, project=['ctime'], tag='node')
+                .order_by({'node': {'ctime': 'desc'}})
+                .first(flat=True)
+            )
+
+            data['Nodes']['first_created'] = str(first_time) if first_time else None
+            data['Nodes']['last_created'] = str(last_time) if last_time else None
+
             node_types = sorted(
                 {typ for (typ,) in QueryBuilder(self).append(Node, project=['node_type']).iterall() if typ is not None}
             )

tests/storage/psql_dos/test_backend.py

@@ -108,6 +108,8 @@ def mock_maintain(self, live=True, dry_run=False, compress=False, **kwargs):
 
 def test_get_info(monkeypatch):
     """Test the ``get_info`` method."""
+    from aiida import orm
+
     storage_backend = get_manager().get_profile_storage()
 
     def mock_get_info(self, detailed=False, **kwargs):
@@ -128,13 +130,24 @@ def mock_get_info(self, detailed=False, **kwargs):
     assert 'extra_value' not in repository_info_out
     assert repository_info_out['value'] == 42
 
-    storage_info_out = storage_backend.get_info(detailed=True)
-    repository_info_out = storage_info_out['repository']
+    node1 = orm.Data().store()
+    node2 = orm.Data().store()
+
+    detailed_storage_info_out = storage_backend.get_info(detailed=True)
+    repository_info_out = detailed_storage_info_out['repository']
     assert 'value' in repository_info_out
     assert 'extra_value' in repository_info_out
     assert repository_info_out['value'] == 42
     assert repository_info_out['extra_value'] == 0
 
+    # Test first_created and last_created timestamps
+    nodes_info = detailed_storage_info_out['entities']['Nodes']
+
+    assert 'first_created' in nodes_info
+    assert 'last_created' in nodes_info
+    assert nodes_info['first_created'] == str(node1.ctime)
+    assert nodes_info['last_created'] == str(node2.ctime)
+
 
 def test_unload_profile():
     """Test that unloading the profile closes all sqla sessions.