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annotate roundup/cgi/TranslationService.py @ 3909:e89bcb28f683

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indexargs_url force ids to int ids appear as hyperdb.String instances, which confused indexargs_url when they appear in the filterspec. They need to be treated as treated as integers when generating URLs. It feels sort of hacky to check for 'id' like this but I'm at a loss for what else to do in this case. Suggestions are welcome :) Maybe we should look into using some other hyperdb class to represent ids? this fixes [SF#783492] Some trailing whitespace also got trimmed.
author Justus Pendleton <jpend@users.sourceforge.net>
date Tue, 18 Sep 2007 16:59:42 +0000
parents a16239e37598
children f11fe2a13234
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # TranslationService for Roundup templates
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2 #
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3 # This module is free software, you may redistribute it
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4 # and/or modify under the same terms as Python.
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5 #
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6 # This module provides National Language Support
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7 # for Roundup templating - much like roundup.i18n
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8 # module for Roundup command line interface.
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9 # The only difference is that translator objects
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10 # returned by get_translation() have one additional
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11 # method which is used by TAL engines:
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12 #
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13 # translate(domain, msgid, mapping, context, target_language, default)
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14 #
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15
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16 __version__ = "$Revision: 1.4 $"[11:-2]
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17 __date__ = "$Date: 2007-01-14 22:54:15 $"[7:-2]
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18
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19 from roundup import i18n
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20 from roundup.cgi.PageTemplates import Expressions, PathIterator, TALES
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21 from roundup.cgi.TAL import TALInterpreter
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22
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23 ### Translation classes
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24
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25 class TranslationServiceMixin:
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26
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27 OUTPUT_ENCODING = "utf-8"
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28
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29 def translate(self, domain, msgid, mapping=None,
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30 context=None, target_language=None, default=None
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31 ):
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32 _msg = self.gettext(msgid)
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33 #print ("TRANSLATE", msgid, _msg, mapping, context)
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34 _msg = TALInterpreter.interpolate(_msg, mapping)
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35 return _msg
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36
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37 def gettext(self, msgid):
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38 if not isinstance(msgid, unicode):
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39 msgid = unicode(msgid, 'utf8')
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40 return self.ugettext(msgid).encode(self.OUTPUT_ENCODING)
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41
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42 def ngettext(self, singular, plural, number):
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43 return self.ungettext(singular, plural, number).encode(
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44 self.OUTPUT_ENCODING)
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45
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46 class TranslationService(TranslationServiceMixin, i18n.RoundupTranslations):
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47 pass
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48
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49 class NullTranslationService(TranslationServiceMixin,
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50 i18n.RoundupNullTranslations):
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51 def ugettext(self, message):
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52 if self._fallback:
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53 return self._fallback.ugettext(message)
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54 # Sometimes the untranslatable message is a UTF-8 encoded string
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55 # (thanks to PageTemplate's internals).
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56 if not isinstance(message, unicode):
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57 return unicode(message, 'utf8')
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58 return message
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59
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60 ### TAL patching
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61 #
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62 # Template Attribute Language (TAL) uses only global translation service,
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63 # which is not thread-safe. We will use context variable 'i18n'
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64 # to access request-dependent transalation service (with domain
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65 # and target language set during initializations of the roundup
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66 # client interface.
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67 #
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68
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69 class Context(TALES.Context):
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70
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71 def __init__(self, compiler, contexts):
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72 TALES.Context.__init__(self, compiler, contexts)
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73 if not self.contexts.get('i18n', None):
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74 # if the context contains no TranslationService,
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75 # create default one
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76 self.contexts['i18n'] = get_translation()
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77 self.i18n = self.contexts['i18n']
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78
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79 def translate(self, domain, msgid, mapping=None,
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80 context=None, target_language=None, default=None):
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81 if context is None:
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82 context = self.contexts.get('here')
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83 return self.i18n.translate(domain, msgid,
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84 mapping=mapping, context=context, default=default,
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85 target_language=target_language)
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86
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87 class Engine(TALES.Engine):
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88
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89 def getContext(self, contexts=None, **kwcontexts):
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90 if contexts is not None:
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91 if kwcontexts:
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92 kwcontexts.update(contexts)
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93 else:
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94 kwcontexts = contexts
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95 return Context(self, kwcontexts)
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96
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97 # patching TAL like this is a dirty hack,
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98 # but i see no other way to specify different Context class
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99 Expressions._engine = Engine(PathIterator.Iterator)
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100 Expressions.installHandlers(Expressions._engine)
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101
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102 ### main API function
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103
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104 def get_translation(language=None, tracker_home=None,
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105 translation_class=TranslationService,
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106 null_translation_class=NullTranslationService
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107 ):
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108 """Return Translation object for given language and domain
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109
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110 Arguments 'translation_class' and 'null_translation_class'
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111 specify the classes that are instantiated for existing
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112 and non-existing translations, respectively.
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113 """
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114 return i18n.get_translation(language=language,
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115 tracker_home=tracker_home,
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116 translation_class=translation_class,
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117 null_translation_class=null_translation_class)
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118
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119 # vim: set et sts=4 sw=4 :
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