fastapi-dls/app/orm.py
2022-12-23 08:16:58 +01:00

145 lines
6.3 KiB
Python

import datetime
from sqlalchemy import Column, VARCHAR, CHAR, ForeignKey, DATETIME, UniqueConstraint, update, and_, delete
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.future import Engine
from sqlalchemy.orm import sessionmaker
Base = declarative_base()
class Origin(Base):
__tablename__ = "origin"
"""
CREATE TABLE origin (
id INTEGER NOT NULL,
origin_ref TEXT,
hostname TEXT,
guest_driver_version TEXT,
os_platform TEXT,
os_version TEXT,
PRIMARY KEY (id)
);
CREATE INDEX ix_origin_0548dd22f20de1bb ON origin (origin_ref);
"""
"""
1|B210CF72-FEC7-4440-9499-1156D1ACD13A|ubuntu-grid-server|525.60.13|Ubuntu 20.04|20.04.5 LTS (Focal Fossa)
2|230b0000-a356-4000-8a2b-0000564c0000|PC-WORKSTATION|527.41|Windows 10 Pro|10.0.19045
3|908B202D-CC43-420F-A2EF-FC092AAE8D38|docker-cuda-1|525.60.13|Debian GNU/Linux 10 (buster) 10|10 (buster)
4|41720000-FA43-4000-9472-0000E8660000|PC-Windows|527.41|Windows 10 Pro|10.0.19045
5|723EA079-7B0C-4E25-A8D4-DD3E89F9D177|docker-cuda-2|525.60.13|Debian GNU/Linux 10 (buster) 10|10 (buster)
"""
origin_ref = Column(CHAR(length=36), primary_key=True, unique=True, index=True) # uuid4
hostname = Column(VARCHAR(length=256), nullable=True)
guest_driver_version = Column(VARCHAR(length=10), nullable=True)
os_platform = Column(VARCHAR(length=256), nullable=True)
os_version = Column(VARCHAR(length=256), nullable=True)
def __repr__(self):
return f'Origin(origin_ref={self.origin_ref}, hostname={self.hostname})'
@staticmethod
def create_statement(engine: Engine):
from sqlalchemy.schema import CreateTable
return CreateTable(Origin.__table__).compile(engine)
@staticmethod
def create_or_update(engine: Engine, origin: "Origin"):
session = sessionmaker(autocommit=True, autoflush=True, bind=engine)()
entity = session.query(Origin).filter(Origin.origin_ref == origin.origin_ref).first()
print(entity)
if entity is None:
session.add(origin)
else:
values = dict(
hostname=origin.hostname,
guest_driver_version=origin.guest_driver_version,
os_platform=origin.os_platform,
os_version=origin.os_version,
)
session.execute(update(Origin).where(Origin.origin_ref == origin.origin_ref).values(values))
session.flush()
session.close()
class Lease(Base):
__tablename__ = "lease"
"""
CREATE TABLE lease (
id INTEGER NOT NULL,
origin_ref TEXT,
lease_ref TEXT,
lease_created DATETIME,
lease_expires DATETIME, lease_last_update DATETIME,
PRIMARY KEY (id)
);
CREATE INDEX ix_lease_11c7d13bfb17f70d ON lease (origin_ref, lease_ref);
"""
"""
1|B210CF72-FEC7-4440-9499-1156D1ACD13A|9c4536f9-a216-44c7-a1d3-388a15ee80be|2022-12-20 17:29:07.906668|2022-12-22 04:45:58.138211|2022-12-21 04:45:58.138211
2|230b0000-a356-4000-8a2b-0000564c0000|1d95e160-058d-4052-b49f-b85306b4c345|2022-12-20 17:30:25.388389|2022-12-23 06:07:29.913027|2022-12-22 06:07:29.913027
3|908B202D-CC43-420F-A2EF-FC092AAE8D38|9e1bca05-e247-4847-9de6-8b9a210b353e|2022-12-20 17:31:40.158003|2022-12-23 09:28:57.379008|2022-12-22 09:28:57.379008
4|41720000-FA43-4000-9472-0000E8660000|f2ece7fa-d0c6-4af4-901c-6d3b2c3ecf88|2022-12-20 21:03:33.403711|2022-12-23 08:44:39.998754|2022-12-22 08:44:39.998754
5|723EA079-7B0C-4E25-A8D4-DD3E89F9D177|5455f59b-dd70-45c1-82fa-3fd5fae6c037|2022-12-21 06:05:35.085572|2022-12-23 04:53:41.385178|2022-12-22 04:53:41.385178
"""
origin_ref = Column(CHAR(length=36), ForeignKey(Origin.origin_ref), primary_key=True, nullable=False, index=True)
lease_ref = Column(CHAR(length=36), primary_key=True, nullable=False, index=True)
lease_created = Column(DATETIME(), nullable=False)
lease_expires = Column(DATETIME(), nullable=False)
lease_updated = Column(DATETIME(), nullable=False)
def __repr__(self):
return f'Lease(origin_ref={self.origin_ref}, lease_ref={self.lease_ref}, expires={self.lease_expires})'
@staticmethod
def create_statement(engine: Engine):
from sqlalchemy.schema import CreateTable
return CreateTable(Lease.__table__).compile(engine)
@staticmethod
def create_or_update(engine: Engine, lease: "Lease"):
session = sessionmaker(autocommit=True, autoflush=True, bind=engine)()
entity = session.query(Lease).filter(and_(Lease.origin_ref == lease.origin_ref, Lease.lease_ref == lease.lease_ref)).first()
if entity is None:
session.add(lease)
else:
values = dict(lease_expires=lease.lease_expires, lease_updated=lease.lease_updated)
session.execute(update(Lease).where(and_(Lease.origin_ref == lease.origin_ref, Lease.lease_ref == lease.lease_ref)).values(values))
session.flush()
session.close()
@staticmethod
def find_by_origin_ref(engine: Engine, origin_ref: str) -> ["Lease"]:
session = sessionmaker(autocommit=True, autoflush=True, bind=engine)()
entities = session.query(Lease).filter(Lease.origin_ref == origin_ref).all()
session.close()
return entities
@staticmethod
def find_by_origin_ref_and_lease_ref(engine: Engine, origin_ref: str, lease_ref: str) -> "Lease":
session = sessionmaker(autocommit=True, autoflush=True, bind=engine)()
entity = session.query(Lease).filter(and_(Lease.origin_ref == origin_ref, Lease.lease_ref == lease_ref)).first()
session.close()
return entity
@staticmethod
def renew(engine: Engine, lease: "Lease", lease_expires: datetime.datetime, lease_updated: datetime.datetime):
session = sessionmaker(autocommit=True, autoflush=True, bind=engine)()
values = dict(lease_expires=lease.lease_expires, lease_updated=lease.lease_updated)
session.execute(update(Lease).where(and_(Lease.origin_ref == lease.origin_ref, Lease.lease_ref == lease.lease_ref)).values(values))
session.close()
@staticmethod
def cleanup(engine: Engine, origin_ref: str) -> int:
session = sessionmaker(autocommit=True, autoflush=True, bind=engine)()
deletions = session.query(Lease).delete(Lease.origin_ref == origin_ref)
session.close()
return deletions