70 lines
1.7 KiB
Python
70 lines
1.7 KiB
Python
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# coding: utf-8
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"""
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flask_wtf.i18n
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~~~~~~~~~~~~~~
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Internationalization support for Flask WTF.
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:copyright: (c) 2013 by Hsiaoming Yang.
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"""
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from flask import _request_ctx_stack
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from babel import support
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try:
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from flask_babel import get_locale
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except ImportError:
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from flask_babelex import get_locale
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try:
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from wtforms.i18n import messages_path
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except ImportError:
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from wtforms.ext.i18n.utils import messages_path
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__all__ = ('Translations', 'translations')
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def _get_translations():
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"""Returns the correct gettext translations.
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Copy from flask-babel with some modifications.
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"""
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ctx = _request_ctx_stack.top
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if ctx is None:
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return None
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# babel should be in extensions for get_locale
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if 'babel' not in ctx.app.extensions:
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return None
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translations = getattr(ctx, 'wtforms_translations', None)
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if translations is None:
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dirname = messages_path()
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translations = support.Translations.load(
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dirname, [get_locale()], domain='wtforms'
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)
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ctx.wtforms_translations = translations
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return translations
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class Translations(object):
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def gettext(self, string):
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t = _get_translations()
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if t is None:
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return string
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if hasattr(t, 'ugettext'):
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return t.ugettext(string)
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# Python 3 has no ugettext
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return t.gettext(string)
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def ngettext(self, singular, plural, n):
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t = _get_translations()
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if t is None:
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if n == 1:
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return singular
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return plural
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if hasattr(t, 'ungettext'):
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return t.ungettext(singular, plural, n)
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# Python 3 has no ungettext
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return t.ngettext(singular, plural, n)
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translations = Translations()
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