Source code for aiida.storage.psql_dos.orm.logs
###########################################################################
# Copyright (c), The AiiDA team. All rights reserved. #
# This file is part of the AiiDA code. #
# #
# The code is hosted on GitHub at https://github.com/aiidateam/aiida-core #
# For further information on the license, see the LICENSE.txt file #
# For further information please visit http://www.aiida.net #
###########################################################################
"""SQLA Log and LogCollection module"""
from sqlalchemy.orm.exc import NoResultFound
from aiida.common import exceptions
from aiida.orm.implementation import BackendLog, BackendLogCollection
from aiida.storage.psql_dos.models import log as models
from . import entities, utils
[docs]
class SqlaLog(entities.SqlaModelEntity[models.DbLog], BackendLog):
"""SQLA Log backend entity"""
MODEL_CLASS = models.DbLog
[docs]
def __init__(self, backend, time, loggername, levelname, dbnode_id, message='', metadata=None):
super().__init__(backend)
self._model = utils.ModelWrapper(
self.MODEL_CLASS(
time=time,
loggername=loggername,
levelname=levelname,
dbnode_id=dbnode_id,
message=message,
metadata=metadata,
),
backend,
)
@property
def uuid(self):
"""Get the string representation of the UUID of the log entry"""
return str(self.model.uuid)
@property
def time(self):
"""Get the time corresponding to the entry"""
return self.model.time
@property
def loggername(self):
"""The name of the logger that created this entry"""
return self.model.loggername
@property
def levelname(self):
"""The name of the log level"""
return self.model.levelname
@property
def dbnode_id(self):
"""Get the id of the object that created the log entry"""
return self.model.dbnode_id
@property
def message(self):
"""Get the message corresponding to the entry"""
return self.model.message
@property
def metadata(self):
"""Get the metadata corresponding to the entry"""
return self.model._metadata
[docs]
class SqlaLogCollection(BackendLogCollection):
"""The SQLA collection for logs"""
ENTITY_CLASS = SqlaLog
[docs]
def delete(self, log_id):
"""Remove a Log entry from the collection with the given id
:param log_id: id of the Log to delete
:type log_id: int
:raises TypeError: if ``log_id`` is not an `int`
:raises `~aiida.common.exceptions.NotExistent`: if Log with ID ``log_id`` is not found
"""
if not isinstance(log_id, int):
raise TypeError('log_id must be an int')
session = self.backend.get_session()
try:
row = session.query(self.ENTITY_CLASS.MODEL_CLASS).filter_by(id=log_id).one()
session.delete(row)
session.commit()
except NoResultFound:
session.rollback()
raise exceptions.NotExistent(f"Log with id '{log_id}' not found")
[docs]
def delete_all(self):
"""Delete all Log entries.
:raises `~aiida.common.exceptions.IntegrityError`: if all Logs could not be deleted
"""
session = self.backend.get_session()
try:
session.query(self.ENTITY_CLASS.MODEL_CLASS).delete()
session.commit()
except Exception as exc:
session.rollback()
raise exceptions.IntegrityError(f'Could not delete all Logs. Full exception: {exc}')
[docs]
def delete_many(self, filters):
"""Delete Logs based on ``filters``
:param filters: similar to QueryBuilder filter
:type filters: dict
:return: (former) ``PK`` s of deleted Logs
:rtype: list
:raises TypeError: if ``filters`` is not a `dict`
:raises `~aiida.common.exceptions.ValidationError`: if ``filters`` is empty
"""
from aiida.orm import Log, QueryBuilder
# Checks
if not isinstance(filters, dict):
raise TypeError('filters must be a dictionary')
if not filters:
raise exceptions.ValidationError('filter must not be empty')
# Apply filter and delete found entities
builder = QueryBuilder(backend=self.backend).append(Log, filters=filters, project='id')
entities_to_delete = builder.all(flat=True)
for entity in entities_to_delete:
self.delete(entity)
# Return list of deleted entities' (former) PKs for checking
return entities_to_delete