Source Code for Module wtf.ext.db._exceptions

  1  # -*- coding: ascii -*- 
  2  # 
  3  # Copyright 2010-2012 
  4  # Andr\xe9 Malo or his licensors, as applicable 
  5  # 
  6  # Licensed under the Apache License, Version 2.0 (the "License"); 
  7  # you may not use this file except in compliance with the License. 
  8  # You may obtain a copy of the License at 
  9  # 
 10  #     http://www.apache.org/licenses/LICENSE-2.0 
 11  # 
 12  # Unless required by applicable law or agreed to in writing, software 
 13  # distributed under the License is distributed on an "AS IS" BASIS, 
 14  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 15  # See the License for the specific language governing permissions and 
 16  # limitations under the License. 
 17  """ 
 18  =============== 
 19   DB Exceptions 
 20  =============== 
 21   
 22  DB Exceptions. 
 23  """ 
 24  __author__ = u"Andr\xe9 Malo" 
 25  __docformat__ = "restructuredtext en" 
 26  __all__ = [ 
 27      'DBError', 
 28      'DBConfigurationError', 
 29      'DBAPIError', 
 30   
 31      'InterfaceError', 
 32      'DatabaseError', 
 33      'DataError', 
 34      'OperationalError', 
 35      'IntegrityError', 
 36      'InternalError', 
 37      'ProgrammingError', 
 38      'NotSupportedError', 
 39  ] 
 40   
 41  import sys as _sys 
 42   
 43  from wtf import Error 
 44   
 45   
 46 -class DBError(Error): 
 47      """ Base DB exception """ 
 48   
 49 -class DBConfigurationError(Error): 
 50      """ DB configuration error """ 
 51   
 52 -class DBAPIError(DBError): 
 53      """ DB API Error """ 
 54   
 55 -class InterfaceError(DBAPIError): 
 56      """ Interface error """ 
 57   
 58 -class DatabaseError(DBAPIError): 
 59      """ Database error """ 
 60   
 61 -class DataError(DatabaseError): 
 62      """ Data error """ 
 63   
 64 -class OperationalError(DatabaseError): 
 65      """ Operational error """ 
 66   
 67 -class IntegrityError(DatabaseError): 
 68      """ Integrity error """ 
 69   
 70 -class InternalError(DatabaseError): 
 71      """ Internal error """ 
 72   
 73 -class ProgrammingError(DatabaseError): 
 74      """ Programming error """ 
 75   
 76 -class NotSupportedError(DatabaseError): 
 77      """ Not supported error """ 
 78   
 79   
 80 -def translate(adapter): 
 81      """ 
 82      Translate exception to wtf.ext DBAPI exception 
 83   
 84      The new exception is raised. 
 85   
 86      :Parameters: 
 87        `adapter` : ``module`` 
 88          DBAPI module 
 89   
 90      :Warning: This is a private function. Use 
 91                ``wtf.ext.db.driver(dbname).translate_exception()``. 
 92      """ 
 93      e = _sys.exc_info() 
 94      try: 
 95          try: 
 96              raise 
 97          except adapter.NotSupportedError: 
 98              raise NotSupportedError, e[1], e[2] 
 99          except adapter.ProgrammingError: 
100              raise ProgrammingError, e[1], e[2] 
101          except adapter.InternalError: 
102              raise InternalError, e[1], e[2] 
103          except adapter.IntegrityError: 
104              raise IntegrityError, e[1], e[2] 
105          except adapter.OperationalError: 
106              raise OperationalError, e[1], e[2] 
107          except adapter.DataError: 
108              raise DataError, e[1], e[2] 
109          except adapter.DatabaseError: 
110              raise DatabaseError, e[1], e[2] 
111          except adapter.InterfaceError: 
112              raise InterfaceError, e[1], e[2] 
113          except adapter.Error: 
114              raise DBAPIError, e[1], e[2] 
115      finally: 
116          del e 
117