[3] | 1 | # mxODBC.py |
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| 2 | # Copyright (C) 2007 Fisch Asset Management AG http://www.fam.ch |
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| 3 | # Coding: Alexander Houben alexander.houben@thor-solutions.ch |
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| 4 | # |
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| 5 | # This module is part of SQLAlchemy and is released under |
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| 6 | # the MIT License: http://www.opensource.org/licenses/mit-license.php |
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| 7 | |
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| 8 | """ |
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| 9 | A wrapper for a mx.ODBC.Windows DB-API connection. |
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| 10 | |
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| 11 | Makes sure the mx module is configured to return datetime objects instead |
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| 12 | of mx.DateTime.DateTime objects. |
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| 13 | """ |
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| 14 | |
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| 15 | from mx.ODBC.Windows import * |
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| 16 | |
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| 17 | |
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| 18 | class Cursor: |
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| 19 | def __init__(self, cursor): |
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| 20 | self.cursor = cursor |
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| 21 | |
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| 22 | def __getattr__(self, attr): |
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| 23 | res = getattr(self.cursor, attr) |
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| 24 | return res |
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| 25 | |
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| 26 | def execute(self, *args, **kwargs): |
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| 27 | res = self.cursor.execute(*args, **kwargs) |
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| 28 | return res |
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| 29 | |
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| 30 | |
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| 31 | class Connection: |
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| 32 | def myErrorHandler(self, connection, cursor, errorclass, errorvalue): |
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| 33 | err0, err1, err2, err3 = errorvalue |
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| 34 | #print ", ".join(["Err%d: %s"%(x, errorvalue[x]) for x in range(4)]) |
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| 35 | if int(err1) == 109: |
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| 36 | # Ignore "Null value eliminated in aggregate function", this is not an error |
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| 37 | return |
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| 38 | raise errorclass, errorvalue |
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| 39 | |
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| 40 | def __init__(self, conn): |
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| 41 | self.conn = conn |
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| 42 | # install a mx ODBC error handler |
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| 43 | self.conn.errorhandler = self.myErrorHandler |
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| 44 | |
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| 45 | def __getattr__(self, attr): |
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| 46 | res = getattr(self.conn, attr) |
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| 47 | return res |
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| 48 | |
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| 49 | def cursor(self, *args, **kwargs): |
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| 50 | res = Cursor(self.conn.cursor(*args, **kwargs)) |
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| 51 | return res |
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| 52 | |
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| 53 | |
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| 54 | # override 'connect' call |
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| 55 | def connect(*args, **kwargs): |
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| 56 | import mx.ODBC.Windows |
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| 57 | conn = mx.ODBC.Windows.Connect(*args, **kwargs) |
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| 58 | conn.datetimeformat = mx.ODBC.Windows.PYDATETIME_DATETIMEFORMAT |
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| 59 | return Connection(conn) |
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| 60 | Connect = connect |
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