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annotate roundup/cgi/TAL/TranslationContext.py @ 6610:db3f0ba75b4a

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Change checkpoint_data and restore_connection_on_error to subtransaction checkpoint_data and restore_connection_on_error used to commit() and rollback() the db connection. This causes additional I/O and load. Changed them to use 'SAVEPOINT name' and 'ROLLBACK TO name' to get a faster method for handling errors within a tranaction. One thing to note is that postgresql (unlike SQL std) doesn't overwrite an older savepoint with he same name. It keeps all savepoints but only rolls back to the newest one with a given name. This could be a resource issue. I left a commented out release statement in case somebody runs into an issue due to too many savepoints. I expect it to slow down the import but....
author John Rouillard <rouilj@ieee.org>
date Sat, 29 Jan 2022 11:29:36 -0500
parents 6e3e4f24c753
children
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1 ##############################################################################
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2 #
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3 # Copyright (c) 2001, 2002 Zope Corporation and Contributors.
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4 # All Rights Reserved.
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5 #
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6 # This software is subject to the provisions of the Zope Public License,
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7 # Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
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8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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11 # FOR A PARTICULAR PURPOSE.
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12 #
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13 ##############################################################################
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14 """Translation context object for the TALInterpreter's I18N support.
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15
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16 The translation context provides a container for the information
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17 needed to perform translation of a marked string from a page template.
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18 """
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19
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20 DEFAULT_DOMAIN = "default"
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21
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22 class TranslationContext:
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23 """Information about the I18N settings of a TAL processor."""
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24
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25 def __init__(self, parent=None, domain=None, target=None, source=None):
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26 if parent:
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27 if not domain:
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28 domain = parent.domain
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29 if not target:
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30 target = parent.target
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31 if not source:
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32 source = parent.source
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33 elif domain is None:
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34 domain = DEFAULT_DOMAIN
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35
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36 self.parent = parent
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37 self.domain = domain
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38 self.target = target
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39 self.source = source
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