projets / auf_roundup.git / blame
| Commit | Line | Data |
|---|---|---|
| c638d827 CR |
1 | ############################################################################## |
| 2 | # | |
| 3 | # Copyright (c) 2001 Zope Corporation and Contributors. All Rights Reserved. | |
| 4 | # | |
| 5 | # This software is subject to the provisions of the Zope Public License, | |
| 6 | # Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution. | |
| 7 | # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED | |
| 8 | # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 9 | # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS | |
| 10 | # FOR A PARTICULAR PURPOSE | |
| 11 | # | |
| 12 | ############################################################################## | |
| 13 | ||
| 14 | """Path Iterator | |
| 15 | ||
| 16 | A TALES Iterator with the ability to use first() and last() on | |
| 17 | subpaths of elements. | |
| 18 | """ | |
| 19 | ||
| 20 | __version__='$Revision: 1.3 $'[11:-2] | |
| 21 | ||
| 22 | import TALES | |
| 23 | from Expressions import restrictedTraverse, Undefs, getSecurityManager | |
| 24 | ||
| 25 | class Iterator(TALES.Iterator): | |
| 26 | def __bobo_traverse__(self, REQUEST, name): | |
| 27 | if name in ('first', 'last'): | |
| 28 | path = REQUEST['TraversalRequestNameStack'] | |
| 29 | names = list(path) | |
| 30 | names.reverse() | |
| 31 | path[:] = [tuple(names)] | |
| 32 | return getattr(self, name) | |
| 33 | ||
| 34 | def same_part(self, name, ob1, ob2): | |
| 35 | if name is None: | |
| 36 | return ob1 == ob2 | |
| 37 | if isinstance(name, type('')): | |
| 38 | name = name.split('/') | |
| 39 | name = filter(None, name) | |
| 40 | securityManager = getSecurityManager() | |
| 41 | try: | |
| 42 | ob1 = restrictedTraverse(ob1, name, securityManager) | |
| 43 | ob2 = restrictedTraverse(ob2, name, securityManager) | |
| 44 | except Undefs: | |
| 45 | return 0 | |
| 46 | return ob1 == ob2 |