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gns3-server/gns3server/db/models.py

102 lines
3.0 KiB

#!/usr/bin/env python
#
# Copyright (C) 2020 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import uuid
from sqlalchemy import Boolean, Column, ForeignKey, Integer, String, DateTime, func
from sqlalchemy.orm import relationship
from sqlalchemy.types import TypeDecorator, CHAR
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import declarative_base
Base = declarative_base()
class GUID(TypeDecorator):
"""Platform-independent GUID type.
Uses PostgreSQL's UUID type, otherwise uses
CHAR(32), storing as stringified hex values.
"""
impl = CHAR
def load_dialect_impl(self, dialect):
if dialect.name == 'postgresql':
return dialect.type_descriptor(UUID())
else:
return dialect.type_descriptor(CHAR(32))
def process_bind_param(self, value, dialect):
if value is None:
return value
elif dialect.name == 'postgresql':
return str(value)
else:
if not isinstance(value, uuid.UUID):
return "%.32x" % uuid.UUID(value).int
else:
# hexstring
return "%.32x" % value.int
def process_result_value(self, value, dialect):
if value is None:
return value
else:
if not isinstance(value, uuid.UUID):
value = uuid.UUID(value)
return value
class BaseTable(Base):
__abstract__ = True
created_at = Column(DateTime, default=func.current_timestamp())
updated_at = Column(DateTime,
default=func.current_timestamp(),
onupdate=func.current_timestamp())
def generate_uuid():
return str(uuid.uuid4())
class User(BaseTable):
__tablename__ = "users"
user_id = Column(GUID, primary_key=True, default=generate_uuid)
username = Column(String, unique=True, index=True)
email = Column(String, unique=True, index=True)
full_name = Column(String)
hashed_password = Column(String)
is_active = Column(Boolean, default=True)
is_superuser = Column(Boolean, default=False)
# items = relationship("Item", back_populates="owner")
#
#
# class Item(Base):
# __tablename__ = "items"
#
# id = Column(Integer, primary_key=True, index=True)
# title = Column(String, index=True)
# description = Column(String, index=True)
# owner_id = Column(Integer, ForeignKey("users.id"))
#
# owner = relationship("User", back_populates="items")