C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # orm/exc.py # Copyright (C) 2005-2019 the SQLAlchemy authors and contributors # # # This module is part of SQLAlchemy and is released under # the MIT License: http://www.opensource.org/licenses/mit-license.php """SQLAlchemy ORM exceptions.""" from .. import exc as sa_exc from .. import util NO_STATE = (AttributeError, KeyError) """Exception types that may be raised by instrumentation implementations.""" class StaleDataError(sa_exc.SQLAlchemyError): """An operation encountered database state that is unaccounted for. Conditions which cause this to happen include: * A flush may have attempted to update or delete rows and an unexpected number of rows were matched during the UPDATE or DELETE statement. Note that when version_id_col is used, rows in UPDATE or DELETE statements are also matched against the current known version identifier. * A mapped object with version_id_col was refreshed, and the version number coming back from the database does not match that of the object itself. * A object is detached from its parent object, however the object was previously attached to a different parent identity which was garbage collected, and a decision cannot be made if the new parent was really the most recent "parent". """ ConcurrentModificationError = StaleDataError class FlushError(sa_exc.SQLAlchemyError): """A invalid condition was detected during flush().""" class UnmappedError(sa_exc.InvalidRequestError): """Base for exceptions that involve expected mappings not present.""" class ObjectDereferencedError(sa_exc.SQLAlchemyError): """An operation cannot complete due to an object being garbage collected. """ class DetachedInstanceError(sa_exc.SQLAlchemyError): """An attempt to access unloaded attributes on a mapped instance that is detached.""" code = "bhk3" class UnmappedInstanceError(UnmappedError): """An mapping operation was requested for an unknown instance.""" @util.dependencies("sqlalchemy.orm.base") def __init__(self, base, obj, msg=None): if not msg: try: base.class_mapper(type(obj)) name = _safe_cls_name(type(obj)) msg = ( "Class %r is mapped, but this instance lacks " "instrumentation. This occurs when the instance " "is created before sqlalchemy.orm.mapper(%s) " "was called." % (name, name) ) except UnmappedClassError: msg = _default_unmapped(type(obj)) if isinstance(obj, type): msg += ( "; was a class (%s) supplied where an instance was " "required?" % _safe_cls_name(obj) ) UnmappedError.__init__(self, msg) def __reduce__(self): return self.__class__, (None, self.args[0]) class UnmappedClassError(UnmappedError): """An mapping operation was requested for an unknown class.""" def __init__(self, cls, msg=None): if not msg: msg = _default_unmapped(cls) UnmappedError.__init__(self, msg) def __reduce__(self): return self.__class__, (None, self.args[0]) class ObjectDeletedError(sa_exc.InvalidRequestError): """A refresh operation failed to retrieve the database row corresponding to an object's known primary key identity. A refresh operation proceeds when an expired attribute is accessed on an object, or when :meth:`.Query.get` is used to retrieve an object which is, upon retrieval, detected as expired. A SELECT is emitted for the target row based on primary key; if no row is returned, this exception is raised. The true meaning of this exception is simply that no row exists for the primary key identifier associated with a persistent object. The row may have been deleted, or in some cases the primary key updated to a new value, outside of the ORM's management of the target object. """ @util.dependencies("sqlalchemy.orm.base") def __init__(self, base, state, msg=None): if not msg: msg = ( "Instance '%s' has been deleted, or its " "row is otherwise not present." % base.state_str(state) ) sa_exc.InvalidRequestError.__init__(self, msg) def __reduce__(self): return self.__class__, (None, self.args[0]) class UnmappedColumnError(sa_exc.InvalidRequestError): """Mapping operation was requested on an unknown column.""" class NoResultFound(sa_exc.InvalidRequestError): """A database result was required but none was found.""" class MultipleResultsFound(sa_exc.Invali