407 lines
14 KiB
Python
407 lines
14 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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import datetime
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import warnings
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from ..model import ModelView, ModelSQL, fields
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from ..cache import Cache
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from ..tools import safe_eval, datetime_strftime
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from ..transaction import Transaction
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from ..pool import Pool
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from .time_locale import TIME_LOCALE
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warnings.filterwarnings('ignore', "", ImportWarning)
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from locale import CHAR_MAX
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warnings.resetwarnings()
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__all__ = [
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'Lang',
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]
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class Lang(ModelSQL, ModelView):
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"Language"
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__name__ = "ir.lang"
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name = fields.Char('Name', required=True, translate=True)
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code = fields.Char('Code', required=True,
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help="RFC 4646 tag: http://tools.ietf.org/html/rfc4646")
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translatable = fields.Boolean('Translatable')
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active = fields.Boolean('Active')
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direction = fields.Selection([
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('ltr', 'Left-to-right'),
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('rtl', 'Right-to-left'),
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], 'Direction', required=True)
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#date
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date = fields.Char('Date', required=True)
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#number
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grouping = fields.Char('Grouping', required=True)
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decimal_point = fields.Char('Decimal Separator', required=True)
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thousands_sep = fields.Char('Thousands Separator')
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_lang_cache = Cache('ir.lang')
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@classmethod
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def __setup__(cls):
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super(Lang, cls).__setup__()
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cls._sql_constraints += [
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('check_decimal_point_thousands_sep',
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'CHECK(decimal_point != thousands_sep)',
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'decimal_point and thousands_sep must be different!'),
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]
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cls._error_messages.update({
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'invalid_grouping': ('Invalid grouping "%(grouping)s" on '
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'"%(language)s" language.'),
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'invalid_date': ('Invalid date format "%(format)s" on '
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'"%(language)s" language.'),
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'default_translatable': ('The default language must be '
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'translatable.'),
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'delete_default': ('Default language can not be deleted.'),
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})
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@classmethod
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def search_rec_name(cls, name, clause):
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langs = cls.search([('code',) + clause[1:]], order=[])
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if langs:
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langs += cls.search([('name',) + clause[1:]], order=[])
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return [('id', 'in', [l.id for l in langs])]
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return [('name',) + tuple(clause[1:])]
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@classmethod
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def read(cls, ids, fields_names=None):
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pool = Pool()
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Translation = pool.get('ir.translation')
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Config = pool.get('ir.configuration')
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res = super(Lang, cls).read(ids, fields_names=fields_names)
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if (Transaction().context.get('translate_name')
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and (not fields_names or 'name' in fields_names)):
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with Transaction().set_context(
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language=Config.get_language(),
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translate_name=False):
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res2 = cls.read(ids, fields_names=['id', 'code', 'name'])
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for record2 in res2:
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for record in res:
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if record['id'] == record2['id']:
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break
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res_trans = Translation.get_ids(cls.__name__ + ',name',
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'model', record2['code'], [record2['id']])
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record['name'] = (res_trans.get(record2['id'], False)
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or record2['name'])
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return res
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@staticmethod
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def default_active():
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return True
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@staticmethod
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def default_translatable():
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return False
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@staticmethod
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def default_direction():
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return 'ltr'
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@staticmethod
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def default_date():
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return '%m/%d/%Y'
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@staticmethod
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def default_grouping():
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return '[]'
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@staticmethod
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def default_decimal_point():
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return '.'
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@staticmethod
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def default_thousands_sep():
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return ','
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@classmethod
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def validate(cls, languages):
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super(Lang, cls).validate(languages)
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cls.check_grouping(languages)
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cls.check_date(languages)
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cls.check_translatable(languages)
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@classmethod
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def check_grouping(cls, langs):
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'''
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Check if grouping is list of numbers
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'''
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for lang in langs:
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try:
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grouping = safe_eval(lang.grouping)
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for i in grouping:
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if not isinstance(i, int):
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raise
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except Exception:
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cls.raise_user_error('invalid_grouping', {
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'grouping': lang.grouping,
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'language': lang.rec_name,
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})
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@classmethod
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def check_date(cls, langs):
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'''
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Check the date format
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'''
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for lang in langs:
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try:
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datetime_strftime(datetime.datetime.now(),
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lang.date.encode('utf-8'))
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except Exception:
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cls.raise_user_error('invalid_date', {
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'format': lang.date,
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'language': lang.rec_name,
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})
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if (('%Y' not in lang.date)
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or ('%b' not in lang.date
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and '%B' not in lang.date
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and '%m' not in lang.date
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and '%-m' not in lang.date)
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or ('%d' not in lang.date
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and '%-d' not in lang.date
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and '%j' not in lang.date
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and '%-j' not in lang.date)
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or ('%x' in lang.date
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or '%X' in lang.date
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or '%c' in lang.date
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or '%Z' in lang.date)):
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cls.raise_user_error('invalid_date', {
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'format': lang.date,
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'language': lang.rec_name,
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})
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@classmethod
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def check_translatable(cls, langs):
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pool = Pool()
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Config = pool.get('ir.configuration')
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# Skip check for root because when languages are created from XML file,
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# translatable is not yet set.
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if Transaction().user == 0:
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return True
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for lang in langs:
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if (lang.code == Config.get_language()
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and not lang.translatable):
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cls.raise_user_error('default_translatable')
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@staticmethod
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def check_xml_record(langs, values):
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return True
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@classmethod
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def get_translatable_languages(cls):
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res = cls._lang_cache.get('translatable_languages')
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if res is None:
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langs = cls.search([
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('translatable', '=', True),
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])
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res = [x.code for x in langs]
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cls._lang_cache.set('translatable_languages', res)
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return res
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@classmethod
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def create(cls, vlist):
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# Clear cache
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cls._lang_cache.clear()
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return super(Lang, cls).create(vlist)
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@classmethod
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def write(cls, langs, vals):
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# Clear cache
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cls._lang_cache.clear()
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super(Lang, cls).write(langs, vals)
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@classmethod
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def delete(cls, langs):
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pool = Pool()
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Config = pool.get('ir.configuration')
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for lang in langs:
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if lang.code == Config.get_language():
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cls.raise_user_error('delete_default')
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# Clear cache
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cls._lang_cache.clear()
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super(Lang, cls).delete(langs)
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@staticmethod
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def _group(lang, s, monetary=None):
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# Code from _group in locale.py
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# Iterate over grouping intervals
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def _grouping_intervals(grouping):
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last_interval = 0
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for interval in grouping:
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# if grouping is -1, we are done
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if interval == CHAR_MAX:
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return
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# 0: re-use last group ad infinitum
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if interval == 0:
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while True:
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yield last_interval
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yield interval
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last_interval = interval
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if monetary:
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thousands_sep = monetary.mon_thousands_sep
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grouping = safe_eval(monetary.mon_grouping)
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else:
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thousands_sep = lang.thousands_sep
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grouping = safe_eval(lang.grouping)
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if not grouping:
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return (s, 0)
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if s[-1] == ' ':
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stripped = s.rstrip()
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right_spaces = s[len(stripped):]
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s = stripped
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else:
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right_spaces = ''
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left_spaces = ''
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groups = []
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for interval in _grouping_intervals(grouping):
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if not s or s[-1] not in "0123456789":
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# only non-digit characters remain (sign, spaces)
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left_spaces = s
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s = ''
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break
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groups.append(s[-interval:])
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s = s[:-interval]
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if s:
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groups.append(s)
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groups.reverse()
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return (
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left_spaces + thousands_sep.join(groups) + right_spaces,
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len(thousands_sep) * (len(groups) - 1)
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)
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@classmethod
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def format(cls, lang, percent, value, grouping=False, monetary=None,
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*additional):
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'''
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Returns the lang-aware substitution of a %? specifier (percent).
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'''
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# Code from format in locale.py
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# Strip a given amount of excess padding from the given string
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def _strip_padding(s, amount):
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lpos = 0
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while amount and s[lpos] == ' ':
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lpos += 1
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amount -= 1
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rpos = len(s) - 1
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while amount and s[rpos] == ' ':
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rpos -= 1
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amount -= 1
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return s[lpos:rpos + 1]
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if not lang:
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lang = cls(
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decimal_point=cls.default_decimal_point(),
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thousands_sep=cls.default_thousands_sep(),
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grouping=cls.default_grouping(),
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)
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# this is only for one-percent-specifier strings
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# and this should be checked
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if percent[0] != '%':
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raise ValueError("format() must be given exactly one %char "
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"format specifier")
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if additional:
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formatted = percent % ((value,) + additional)
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else:
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formatted = percent % value
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# floats and decimal ints need special action!
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if percent[-1] in 'eEfFgG':
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seps = 0
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parts = formatted.split('.')
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if grouping:
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parts[0], seps = cls._group(lang, parts[0], monetary=monetary)
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if monetary:
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decimal_point = monetary.mon_decimal_point
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else:
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decimal_point = lang.decimal_point
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formatted = decimal_point.join(parts)
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if seps:
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formatted = _strip_padding(formatted, seps)
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elif percent[-1] in 'diu':
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if grouping:
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formatted, seps = cls._group(lang, formatted,
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monetary=monetary)
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if seps:
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formatted = _strip_padding(formatted, seps)
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return formatted
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@classmethod
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def currency(cls, lang, val, currency, symbol=True, grouping=False):
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"""
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Formats val according to the currency settings in lang.
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"""
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# Code from currency in locale.py
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if not lang:
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lang = cls(
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decimal_point=cls.default_decimal_point(),
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thousands_sep=cls.default_thousands_sep(),
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grouping=cls.default_grouping(),
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)
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# check for illegal values
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digits = currency.digits
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if digits == 127:
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raise ValueError("Currency formatting is not possible using "
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"the 'C' locale.")
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s = cls.format(lang, '%%.%if' % digits, abs(val), grouping,
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monetary=currency)
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# '<' and '>' are markers if the sign must be inserted
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# between symbol and value
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s = '<' + s + '>'
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if symbol:
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smb = currency.symbol
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precedes = (val < 0 and currency.n_cs_precedes
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or currency.p_cs_precedes)
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separated = (val < 0 and currency.n_sep_by_space
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or currency.p_sep_by_space)
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if precedes:
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s = smb + (separated and ' ' or '') + s
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else:
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s = s + (separated and ' ' or '') + smb
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sign_pos = val < 0 and currency.n_sign_posn or currency.p_sign_posn
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sign = val < 0 and currency.negative_sign or currency.positive_sign
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if sign_pos == 0:
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s = '(' + s + ')'
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elif sign_pos == 1:
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s = sign + s
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elif sign_pos == 2:
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s = s + sign
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elif sign_pos == 3:
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s = s.replace('<', sign)
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elif sign_pos == 4:
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s = s.replace('>', sign)
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else:
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# the default if nothing specified;
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# this should be the most fitting sign position
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s = sign + s
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return s.replace('<', '').replace('>', '')
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@staticmethod
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def strftime(datetime, code, format):
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'''
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Convert datetime to a string as specified by the format argument.
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'''
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if code in TIME_LOCALE:
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for f, i in (('%a', 6), ('%A', 6), ('%b', 1), ('%B', 1)):
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format = format.replace(f,
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TIME_LOCALE[code][f][datetime.timetuple()[i]])
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format = format.replace('%p',
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TIME_LOCALE[code]['%p'][datetime.timetuple()[3] < 12 and 0
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or 1]).encode('utf-8')
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else:
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format = format.encode('utf-8')
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return datetime_strftime(datetime, format).decode('utf-8')
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