a9e3af2ebf
SQLAlchemy session code now parses foreign key violations and returns a new custom exception so we can track them. Change-Id: If5610b5743203a5c34ac7df240e5332c39911c4a
76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""DB related custom exceptions."""
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import six
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from oslo.db.openstack.common.gettextutils import _
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class DBError(Exception):
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"""Wraps an implementation specific exception."""
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def __init__(self, inner_exception=None):
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self.inner_exception = inner_exception
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super(DBError, self).__init__(six.text_type(inner_exception))
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class DBDuplicateEntry(DBError):
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"""Wraps an implementation specific exception."""
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def __init__(self, columns=None, inner_exception=None):
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self.columns = columns or []
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super(DBDuplicateEntry, self).__init__(inner_exception)
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class DBReferenceError(DBError):
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"""Wraps an implementation specific exception."""
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def __init__(self, table, constraint, key, key_table,
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inner_exception=None):
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self.table = table
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self.constraint = constraint
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self.key = key
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self.key_table = key_table
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super(DBReferenceError, self).__init__(inner_exception)
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class DBDeadlock(DBError):
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def __init__(self, inner_exception=None):
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super(DBDeadlock, self).__init__(inner_exception)
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class DBInvalidUnicodeParameter(Exception):
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message = _("Invalid Parameter: "
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"Unicode is not supported by the current database.")
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class DbMigrationError(DBError):
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"""Wraps migration specific exception."""
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def __init__(self, message=None):
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super(DbMigrationError, self).__init__(message)
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class DBConnectionError(DBError):
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"""Wraps connection specific exception."""
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pass
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class InvalidSortKey(Exception):
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message = _("Sort key supplied was not valid.")
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class ColumnError(Exception):
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"""Error raised when no column or an invalid column is found."""
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