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from functools import reduce, partial
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from collections import OrderedDict
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from django.conf import settings
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from shared.utils.translation import get_language, lang_suffix
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def i18n_fields(field_name, languages=None):
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"""
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Returns a list of i18n fields for a given fieldname.
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>>> i18n_fields('title', ['en', 'de'])
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['title_en', 'title_de']
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"""
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return [lang_suffix(l, field_name) for l in languages or
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OrderedDict(settings.LANGUAGES).keys()]
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def i18n_fields_list(field_names, languages=None):
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"""
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Returns i18n fields for a list of fields, i.e.
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>>> search_fields = ['title', 'window_title', 'short_title']
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>>> i18n_fields_list(search_fields, ['en', 'de'])
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['title_en', 'title_en', 'windowtitle_en', 'windowtitle_en', 'shorttitle_en', 'shorttitle_en', ]
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"""
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f = partial(i18n_fields, languages=languages)
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return reduce(lambda x, y: x + y, map(f, field_names))
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