371 lines
13 KiB
Python
371 lines
13 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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from __future__ import with_statement
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import time
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import datetime
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from trytond.model import ModelView, ModelSQL, fields
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from trytond.model.cacheable import Cacheable
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from trytond.tools import safe_eval, datetime_strftime
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from trytond.transaction import Transaction
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from time_locale import TIME_LOCALE
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from locale import CHAR_MAX
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class Lang(ModelSQL, ModelView, Cacheable):
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"Language"
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_name = "ir.lang"
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_description = __doc__
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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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def __init__(self):
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super(Lang, self).__init__()
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self._constraints += [
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('check_grouping', 'invalid_grouping'),
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('check_date', 'invalid_date'),
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]
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self._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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self._error_messages.update({
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'invalid_grouping': 'Invalid Grouping!',
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'invalid_date': 'The date format is not valid!',
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})
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def search_rec_name(self, name, clause):
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ids = self.search([('code',) + clause[1:]], order=[])
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if ids:
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ids += self.search([('name',) + clause[1:]], order=[])
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return [('id', 'in', ids)]
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return [('name',) + clause[1:]]
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def read(self, ids, fields_names=None):
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translation_obj = self.pool.get('ir.translation')
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res = super(Lang, self).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=self.default_code(),
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translate_name=False):
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res2 = self.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_obj._get_ids(self._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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def default_code(self):
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return 'en_US'
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def default_active(self):
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return True
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def default_translatable(self):
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return False
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def default_direction(self):
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return 'ltr'
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def default_date(self):
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return '%m/%d/%Y'
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def default_grouping(self):
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return '[]'
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def default_decimal_point(self):
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return '.'
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def default_thousands_sep(self):
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return ','
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def check_grouping(self, ids):
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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 self.browse(ids):
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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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return False
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except Exception:
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return False
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return True
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def check_date(self, ids):
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'''
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Check the date format
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'''
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for lang in self.browse(ids):
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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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return False
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if '%Y' not in lang.date:
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return False
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if '%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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return False
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if '%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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return False
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if '%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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return False
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return True
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def check_xml_record(self, ids, values):
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return True
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def get_translatable_languages(self):
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res = self.get('translatable_languages')
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if res is None:
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lang_ids = self.search([
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('translatable', '=', True),
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])
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res = [x.code for x in self.browse(lang_ids)]
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self.add('translatable_languages', res)
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return res
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def create(self, vals):
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# Clear cache
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if self.get('translatable_languages'):
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self.invalidate('translatable_languages')
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return super(Lang, self).create(vals)
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def write(self, ids, vals):
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# Clear cache
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if self.get('translatable_languages'):
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self.invalidate('translatable_languages')
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return super(Lang, self).write(ids, vals)
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def delete(self, ids):
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# Clear cache
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if self.get('translatable_languages'):
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self.invalidate('translatable_languages')
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return super(Lang, self).delete(ids)
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def _group(self, lang, s, monetary=False):
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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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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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result = ""
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seps = 0
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spaces = ""
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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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def format(self, lang, percent, value, grouping=False, monetary=None, *additional):
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'''
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Returns the lang-aware substitution of a %? specifier (percent).
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:param lang: the BrowseRecord of the language
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:param percent: the string with %? specifier
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:param value: the value
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:param grouping: a boolean to take grouping into account
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:param monetary: a BrowseRecord of the currency or None
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:param additional: for format strings which contain one or more modifiers
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:return: the formatted string
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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 = {
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'decimal_point': self.default_decimal_point(),
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'thousands_sep': self.default_thousands_sep(),
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'grouping': self.default_grouping(),
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}
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# this is only for one-percent-specifier strings 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 = self._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 = self._group(lang, formatted, 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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def currency(self, 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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:param lang: the BrowseRecord of the language
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:param val: the value to format
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:param currency: the BrowseRecord of the currency
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:param symbol: a boolean to include currency symbol
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:param grouping: a boolean to take grouping into account
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:return: the formatted string
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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 = {
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'decimal_point': self.default_decimal_point(),
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'thousands_sep': self.default_thousands_sep(),
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'grouping': self.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 = self.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 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 or currency.p_cs_precedes
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separated = val<0 and currency.n_sep_by_space 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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def strftime(self, 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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:param datetime: a datetime
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:param code: locale code
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:param format: a string
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:return: a unicode string
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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', TIME_LOCALE[code]['%p']\
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[datetime.timetuple()[3] < 12 and 0 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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Lang()
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