Python orm.Session方法代码示例

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def get_session():
    """
        Return SQLAlchemy session
    """

    global sessions

    if global_scope['db_file'] is None:
        raise RuntimeError('`db_file` is not defined in the global scope')

    # Create a unique key for the db session
    db_file = global_scope['db_file']

    # Add a session to the current list
    if not sessions.get(db_file):
        sessions[db_file] = Session(bind=get_engine())

    return sessions[db_file] 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def __init__(
        self,
        settings: SQLAlchemySettings,
        base: DeclarativeMeta = Base,
        tables: Optional[Sequence] = None,
        connection_strategy: str = "plain",
        session: Optional[Union[Session, scoped_session]] = None,
    ):
        super(SQLAlchemyDatastore, self).__init__(settings=settings)
        self._was_session_created_here = False
        self._session = session
        if session:
            self._engine: Optional[Engine] = session.get_bind()
        else:
            self._engine = None
        self._base = base
        self._tables = tables
        self._connection_strategy = connection_strategy 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def upgrade():
    conn = op.get_bind()
    session = Session(bind=conn)

    op.alter_column('user', 'password_hash',
           existing_type=sa.VARCHAR(length=128),
           type_=sa.VARCHAR(length=200),
           existing_nullable=False)
    op.alter_column('user', 'pin_hash',
           existing_type=sa.VARCHAR(),
           type_=sa.VARCHAR(length=200),
           existing_nullable=False)
    session.commit()

    f = Fernet(current_app.config['PASSWORD_PEPPER'])
    for user in session.query(User).execution_options(show_all=True).all():
        if user.password_hash:
            user.password_hash = f.encrypt(user.password_hash.encode()).decode()
        if user.pin_hash:
            user.pin_hash = f.encrypt(user.pin_hash.encode()).decode()
    session.commit() 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def downgrade():
    conn = op.get_bind()
    session = Session(bind=conn)

    f = Fernet(current_app.config['PASSWORD_PEPPER'])

    for user in session.query(User).execution_options(show_all=True).all():
        if user.password_hash:
            user.password_hash = f.decrypt(user.password_hash.encode()).decode()
        if user.pin_hash:
            user.pin_hash = f.decrypt(user.pin_hash.encode()).decode()
    session.commit()

    op.alter_column('user', 'password_hash',
           existing_type=sa.VARCHAR(length=200),
           type_=sa.VARCHAR(length=128),
           existing_nullable=False)
    op.alter_column('user', 'pin_hash',
           existing_type=sa.VARCHAR(length=200),
           type_=sa.VARCHAR(),
           existing_nullable=False)
    session.commit() 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def upgrade():
    conn = op.get_bind()
    session = Session(bind=conn)

    op.add_column('organisation', sa.Column('external_auth_username', sa.String(), nullable=True))
    op.add_column('organisation', sa.Column('_external_auth_password', sa.String(), nullable=True))

    tcr = sa.sql.table('organisation',
                       sa.Column('id', sa.Integer, primary_key=True),
                       sa.Column('external_auth_username', sa.String(), nullable=True),
                       sa.Column('_external_auth_password', sa.String(), nullable=True),
                       sa.Column('name', sa.String(), nullable=True))

    for org in session.query(tcr).execution_options(show_all=True).all():
        org.external_auth_username = 'admin_'+(org.name or '').lower().replace(' ', '_')
        org._external_auth_password = encrypt_string(secrets.token_hex(16))
    session.commit() 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def mongoquery(cls, query_or_session: Union[Query, Session] = None) -> MongoQuery:
        """ Build a MongoQuery

        Note that when `None` is given, the resulting Query is not bound to any session!
        You'll have to bind it manually, after calling .end()

        :param query_or_session: Query to start with, or a session object to initiate the query with
        :type query_or_session: sqlalchemy.orm.Query | sqlalchemy.orm.Session | None
        :rtype: mongosql.MongoQuery
        """
        if query_or_session is None:
            query = Query([cls])
        elif isinstance(query_or_session, Session):
            query = query_or_session.query(cls)
        elif isinstance(query_or_session, Query):
            query = query_or_session
        else:
            raise ValueError('Argument must be Query or Session')

        return cls._get_mongoquery().from_query(query) 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def upgrade():
    try:
        with op.batch_alter_table("smsgatewayoption") as batch_op:
            batch_op.drop_constraint('sgix_1', type_='unique')
            batch_op.create_unique_constraint('sgix_1', ['gateway_id', 'Key', 'Type'])
    except Exception as exx:
        print("Cannot change constraint 'sgix_1' in table smsgatewayoption.")
        print(exx)

    try:
        bind = op.get_bind()
        session = orm.Session(bind=bind)
        # add default type 'option' for all rows
        for row in session.query(SMSGatewayOption):
            if not row.Type:
                row.Type = "option"

    except Exception as exx:
        session.rollback()
        print("Failed to add option type for all existing entries in table smsgatewayoption!")
        print(exx)

    session.commit() 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def upgrade():
    try:
        op.add_column('policy', sa.Column('adminuser', sa.Unicode(length=256), nullable=True))
    except Exception as exx:
        print('Adding of column "adminuser" in table policy failed: {!r}'.format(exx))
        print('This is expected behavior if this column already exists.')

    # Now that we added the column in the table, we can move the "user" from admin-policies to
    # the "adminuser" column

    try:
        bind = op.get_bind()
        session = orm.Session(bind=bind)
        pol_name = None
        for policy in session.query(Policy).filter(Policy.user != "", Policy.scope == "admin"):
            pol_name = policy.name
            # move the "user" to the "adminuser"
            policy.adminuser = policy.user
            policy.user = u""
        session.commit()
    except Exception as exx:
        session.rollback()
        print("Failed to migrate column adminuser in policies due to error in policy '{0!s}'.".format(pol_name))
        print(exx) 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def do_import_licenses(file_data: List[dict]):
    imported = set()
    print("Importing licenses ... ", flush=True)
    with progressbar.ProgressBar(max_value=len(file_data)) as bar:
        for idx, p in enumerate(file_data):
            info = p.get('info')
            license_text = detect_license(info.get('license'))

            if license_text and license_text not in imported:
                imported.add(license_text)
                session: Session = DbSession.factory()

                package_license = License()
                package_license.id = license_text
                package_license.description = info.get('license')

                session.add(package_license)
                session.commit()

            bar.update(idx)

    sys.stderr.flush()
    sys.stdout.flush() 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def do_user_import(user_lookup: Dict[str, str]) -> Dict[str, User]:
    print("Importing users ... ", flush=True)
    with progressbar.ProgressBar(max_value=len(user_lookup)) as bar:
        for idx, (email, name) in enumerate(user_lookup.items()):
            session: Session = DbSession.factory()
            session.expire_on_commit = False

            user = User()
            user.email = email
            user.name = name
            session.add(user)

            session.commit()
            bar.update(idx)

    print()
    sys.stderr.flush()
    sys.stdout.flush()

    session: Session = DbSession.factory()
    return {u.email: u for u in session.query(User)} 

# 需要导入模块: from sqlalchemy import orm [as 别名]
# 或者: from sqlalchemy.orm import Session [as 别名]
def upgrade():
    bind = op.get_bind()
    session = Session(bind=bind)

    department_query = text("SELECT * FROM departments")
    for department in session.execute(department_query):
        short_name = "".join([x[0] for x in department.name.split(" ")])
        department.short_name = short_name
    session.commit()

    op.alter_column('departments', 'short_name', existing_type=sa.VARCHAR(length=80), nullable=False)