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16 changes: 16 additions & 0 deletions src/aiida/orm/implementation/storage_backend.py
Original file line number Diff line number Diff line change
Expand Up @@ -484,6 +484,22 @@ def get_orm_entities(self, detailed: bool = False) -> dict:
)
data['Nodes']['process_types'] = [p for p in process_types if p]

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

query_group = QueryBuilder(self).append(Group, project=['type_string'])
data['Groups'] = {'count': query_group.count()}
if detailed:
Expand Down