Files
tryton/trytond/ir/lang.py
T
Cédric Krier 4679d1c910 Add ir.calendar for month and day
This allows to replace time_locale and use the translation infrastructure
instead. So it can be customized using the translation override or derivative
languages.
This provides also a standard base to modules that needs calendar month and
day.

issue7815
review56451002
2019-01-01 15:47:23 +01:00

522 lines
16 KiB
Python

# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import datetime
import warnings
warnings.filterwarnings('ignore', "", ImportWarning)
from locale import CHAR_MAX
warnings.resetwarnings()
from ast import literal_eval
from sql import Table
from ..model import ModelView, ModelSQL, DeactivableMixin, fields, Check
from ..cache import Cache
from ..transaction import Transaction
from ..pool import Pool
from ..exceptions import UserError
from ..i18n import gettext
Transaction.cache_keys.add('translate_name')
__all__ = [
'Lang',
]
class GroupingError(UserError):
pass
class DateError(UserError):
pass
class TranslatableError(UserError):
pass
class DeleteDefaultError(UserError):
pass
class Lang(DeactivableMixin, ModelSQL, ModelView):
"Language"
__name__ = "ir.lang"
name = fields.Char('Name', required=True, translate=True)
code = fields.Char('Code', required=True,
help="RFC 4646 tag: http://tools.ietf.org/html/rfc4646")
translatable = fields.Boolean('Translatable')
parent = fields.Char("Parent Code", help="Code of the exceptional parent")
direction = fields.Selection([
('ltr', 'Left-to-right'),
('rtl', 'Right-to-left'),
], 'Direction', required=True)
# date
date = fields.Char('Date', required=True)
am = fields.Char("AM")
pm = fields.Char("PM")
# number
grouping = fields.Char('Grouping', required=True)
decimal_point = fields.Char('Decimal Separator', required=True)
thousands_sep = fields.Char('Thousands Separator')
# monetary formatting
mon_grouping = fields.Char('Grouping', required=True)
mon_decimal_point = fields.Char('Decimal Separator', required=True)
mon_thousands_sep = fields.Char('Thousands Separator')
p_sign_posn = fields.Integer('Positive Sign Position', required=True)
n_sign_posn = fields.Integer('Negative Sign Position', required=True)
positive_sign = fields.Char('Positive Sign')
negative_sign = fields.Char('Negative Sign')
p_cs_precedes = fields.Boolean('Positive Currency Symbol Precedes')
n_cs_precedes = fields.Boolean('Negative Currency Symbol Precedes')
p_sep_by_space = fields.Boolean('Positive Separate by Space')
n_sep_by_space = fields.Boolean('Negative Separate by Space')
_lang_cache = Cache('ir.lang')
_code_cache = Cache('ir.lang.code', context=False)
@classmethod
def __setup__(cls):
super(Lang, cls).__setup__()
table = cls.__table__()
cls._sql_constraints += [
('check_decimal_point_thousands_sep',
Check(table, table.decimal_point != table.thousands_sep),
'decimal_point and thousands_sep must be different!'),
]
@classmethod
def search_rec_name(cls, name, clause):
langs = cls.search([('code',) + tuple(clause[1:])], order=[])
if langs:
langs += cls.search([('name',) + tuple(clause[1:])], order=[])
return [('id', 'in', [l.id for l in langs])]
return [('name',) + tuple(clause[1:])]
@classmethod
def read(cls, ids, fields_names):
pool = Pool()
Translation = pool.get('ir.translation')
Config = pool.get('ir.configuration')
res = super(Lang, cls).read(ids, fields_names)
if (Transaction().context.get('translate_name')
and (not fields_names or 'name' in fields_names)):
with Transaction().set_context(
language=Config.get_language(),
translate_name=False):
res2 = cls.read(ids, ['id', 'code', 'name'])
for record2 in res2:
for record in res:
if record['id'] == record2['id']:
break
res_trans = Translation.get_ids(cls.__name__ + ',name',
'model', record2['code'], [record2['id']])
record['name'] = (res_trans.get(record2['id'], False)
or record2['name'])
return res
@staticmethod
def default_translatable():
return False
@staticmethod
def default_direction():
return 'ltr'
@staticmethod
def default_date():
return '%m/%d/%Y'
@staticmethod
def default_grouping():
return '[]'
@staticmethod
def default_decimal_point():
return '.'
@staticmethod
def default_thousands_sep():
return ','
@classmethod
def default_mon_grouping(cls):
return '[]'
@classmethod
def default_mon_thousands_sep(cls):
return ','
@classmethod
def default_mon_decimal_point(cls):
return '.'
@classmethod
def default_p_sign_posn(cls):
return 1
@classmethod
def default_n_sign_posn(cls):
return 1
@classmethod
def default_negative_sign(cls):
return '-'
@classmethod
def default_positive_sign(cls):
return ''
@classmethod
def default_p_cs_precedes(cls):
return True
@classmethod
def default_n_cs_precedes(cls):
return True
@classmethod
def default_p_sep_by_space(cls):
return False
@classmethod
def default_n_sep_by_space(cls):
return False
@classmethod
def validate(cls, languages):
super(Lang, cls).validate(languages)
cls.check_grouping(languages)
cls.check_date(languages)
cls.check_translatable(languages)
@classmethod
def check_grouping(cls, langs):
'''
Check if grouping is list of numbers
'''
for lang in langs:
for grouping in [lang.grouping, lang.mon_grouping]:
try:
grouping = literal_eval(grouping)
for i in grouping:
if not isinstance(i, int):
raise
except Exception:
raise GroupingError(
gettext('ir.msg_language_invalid_grouping',
grouping=grouping,
language=lang.rec_name))
@classmethod
def check_date(cls, langs):
'''
Check the date format
'''
for lang in langs:
date = lang.date
try:
datetime.datetime.now().strftime(date)
except Exception:
raise DateError(gettext('ir.msg_language_invalid_date',
format=lang.date,
language=lang.rec_name))
if (('%Y' not in lang.date)
or ('%b' not in lang.date
and '%B' not in lang.date
and '%m' not in lang.date
and '%-m' not in lang.date)
or ('%d' not in lang.date
and '%-d' not in lang.date
and '%j' not in lang.date
and '%-j' not in lang.date)
or ('%x' in lang.date
or '%X' in lang.date
or '%c' in lang.date
or '%Z' in lang.date)):
raise DateError(gettext(
'ir.msg_language_invalid_date',
format=lang.date,
language=lang.rec_name))
@classmethod
def check_translatable(cls, langs):
pool = Pool()
Config = pool.get('ir.configuration')
# Skip check for root because when languages are created from XML file,
# translatable is not yet set.
if Transaction().user == 0:
return True
for lang in langs:
if (lang.code == Config.get_language()
and not lang.translatable):
raise TranslatableError(
gettext('ir.msg_language_default_translatable'))
@staticmethod
def check_xml_record(langs, values):
return True
@classmethod
def get_translatable_languages(cls):
res = cls._lang_cache.get('translatable_languages')
if res is None:
langs = cls.search([
('translatable', '=', True),
])
res = [x.code for x in langs]
cls._lang_cache.set('translatable_languages', res)
return res
@classmethod
def create(cls, vlist):
pool = Pool()
Translation = pool.get('ir.translation')
# Clear cache
cls._lang_cache.clear()
languages = super(Lang, cls).create(vlist)
Translation._get_language_cache.clear()
_parents.clear()
return languages
@classmethod
def write(cls, langs, values, *args):
pool = Pool()
Translation = pool.get('ir.translation')
# Clear cache
cls._lang_cache.clear()
cls._code_cache.clear()
super(Lang, cls).write(langs, values, *args)
Translation._get_language_cache.clear()
_parents.clear()
@classmethod
def delete(cls, langs):
pool = Pool()
Config = pool.get('ir.configuration')
Translation = pool.get('ir.translation')
for lang in langs:
if lang.code == Config.get_language():
raise DeleteDefaultError(
gettext('ir.msg_language_delete_default'))
# Clear cache
cls._lang_cache.clear()
cls._code_cache.clear()
super(Lang, cls).delete(langs)
Translation._get_language_cache.clear()
_parents.clear()
@classmethod
def get(cls, code=None):
"Return language instance for the code or the transaction language"
if code is None:
code = Transaction().language
lang_id = cls._code_cache.get(code)
if not lang_id:
with Transaction().set_context(active_test=False):
lang, = cls.search([
('code', '=', code),
])
cls._code_cache.set(code, lang.id)
else:
lang = cls(lang_id)
return lang
def _group(self, s, monetary=False):
# Code from _group in locale.py
# Iterate over grouping intervals
def _grouping_intervals(grouping):
last_interval = 0
for interval in grouping:
# if grouping is -1, we are done
if interval == CHAR_MAX:
return
# 0: re-use last group ad infinitum
if interval == 0:
while True:
yield last_interval
yield interval
last_interval = interval
if monetary:
thousands_sep = self.mon_thousands_sep
grouping = literal_eval(self.mon_grouping)
else:
thousands_sep = self.thousands_sep
grouping = literal_eval(self.grouping)
if not grouping:
return (s, 0)
if s[-1] == ' ':
stripped = s.rstrip()
right_spaces = s[len(stripped):]
s = stripped
else:
right_spaces = ''
left_spaces = ''
groups = []
for interval in _grouping_intervals(grouping):
if not s or s[-1] not in "0123456789":
# only non-digit characters remain (sign, spaces)
left_spaces = s
s = ''
break
groups.append(s[-interval:])
s = s[:-interval]
if s:
groups.append(s)
groups.reverse()
return (
left_spaces + thousands_sep.join(groups) + right_spaces,
len(thousands_sep) * (len(groups) - 1)
)
def format(self, percent, value, grouping=False, monetary=False,
*additional):
'''
Returns the lang-aware substitution of a %? specifier (percent).
'''
# Code from format in locale.py
# Strip a given amount of excess padding from the given string
def _strip_padding(s, amount):
lpos = 0
while amount and s[lpos] == ' ':
lpos += 1
amount -= 1
rpos = len(s) - 1
while amount and s[rpos] == ' ':
rpos -= 1
amount -= 1
return s[lpos:rpos + 1]
# this is only for one-percent-specifier strings
# and this should be checked
if percent[0] != '%':
raise ValueError("format() must be given exactly one %char "
"format specifier")
if additional:
formatted = percent % ((value,) + additional)
else:
formatted = percent % value
# floats and decimal ints need special action!
if percent[-1] in 'eEfFgG':
seps = 0
parts = formatted.split('.')
if grouping:
parts[0], seps = self._group(parts[0], monetary=monetary)
if monetary:
decimal_point = self.mon_decimal_point
else:
decimal_point = self.decimal_point
formatted = decimal_point.join(parts)
if seps:
formatted = _strip_padding(formatted, seps)
elif percent[-1] in 'diu':
if grouping:
formatted, seps = self._group(formatted, monetary=monetary)
if seps:
formatted = _strip_padding(formatted, seps)
return formatted
def currency(self, val, currency, symbol=True, grouping=False):
"""
Formats val according to the currency settings in lang.
"""
# Code from currency in locale.py
# check for illegal values
digits = currency.digits
if digits == 127:
raise ValueError("Currency formatting is not possible using "
"the 'C' locale.")
s = self.format(
'%%.%if' % digits, abs(val), grouping, monetary=True)
# '<' and '>' are markers if the sign must be inserted
# between symbol and value
s = '<' + s + '>'
if symbol:
smb = currency.symbol
precedes = (val < 0 and self.n_cs_precedes
or self.p_cs_precedes)
separated = (val < 0 and self.n_sep_by_space
or self.p_sep_by_space)
if precedes:
s = smb + (separated and ' ' or '') + s
else:
s = s + (separated and ' ' or '') + smb
sign_pos = val < 0 and self.n_sign_posn or self.p_sign_posn
sign = val < 0 and self.negative_sign or self.positive_sign
if sign_pos == 0:
s = '(' + s + ')'
elif sign_pos == 1:
s = sign + s
elif sign_pos == 2:
s = s + sign
elif sign_pos == 3:
s = s.replace('<', sign)
elif sign_pos == 4:
s = s.replace('>', sign)
else:
# the default if nothing specified;
# this should be the most fitting sign position
s = sign + s
return s.replace('<', '').replace('>', '')
def strftime(self, value, format=None):
'''
Convert value to a string as specified by the format argument.
'''
pool = Pool()
Month = pool.get('ir.calendar.month')
Day = pool.get('ir.calendar.day')
if format is None:
format = self.date
format = format.replace('%x', self.date)
if isinstance(value, datetime.date):
for f, i, klass in (('%A', 6, Day), ('%B', 1, Month)):
for field, f in [('name', f), ('abbreviation', f.lower())]:
locale = klass.locale(self, field=field)
format = format.replace(f, locale[value.timetuple()[i]])
if isinstance(value, datetime.time):
time = value
else:
try:
time = value.time()
except AttributeError:
time = None
if time:
if time < datetime.time(12):
p = self.am or 'AM'
else:
p = self.pm or 'PM'
format = format.replace('%p', p)
return value.strftime(format)
def get_parent_language(code):
if code not in _parents:
# Use SQL because it is used by load_module_graph
cursor = Transaction().connection.cursor()
lang = Table('ir_lang')
cursor.execute(*lang.select(lang.code, lang.parent))
_parents.update(cursor.fetchall())
if _parents.get(code):
return _parents[code]
for sep in ['@', '_']:
if sep in code:
return code.rsplit(sep, 1)[0]
_parents = {}