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93 lines
4.5 KiB
Python
93 lines
4.5 KiB
Python
# -*- encoding: utf-8 -*-
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##############################################################################
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#
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# Currency rate date check module for OpenERP
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# Copyright (C) 2012-2013 Akretion (http://www.akretion.com)
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# @author Alexis de Lattre <alexis.delattre@akretion.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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from openerp import models, fields, _
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from openerp.exceptions import Warning
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# Here are some explainations about the design of this module.
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# In odoo/openerp/addons/base/res/res_currency.py :
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# compute() -> _get_conversion_rate()
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# -> _current_rate() -> _get_current_rate()
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# The date used for the rate is the one in the context
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# Which one of the 3 functions should we inherit ? Good question...
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# It's probably better to inherit the lowest level function,
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# i.e. _get_current_rate()
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# Advantage : by inheriting the lowest level function,
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# we can be sure that the check
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# always apply, even for scenarios where we
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# read the field "rate" of the obj currency
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# => that's the solution I implement in the code below
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class ResCurrency(models.Model):
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_inherit = 'res.currency'
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def _get_current_rate(
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self, cr, uid, ids, raise_on_no_rate=True, context=None):
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if context is None:
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context = {}
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# We don't check if we don't have 'date' in context, which is
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# a pb because it means Odoo can do a rate conversion
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# on today's date with an old rate, but otherwize it would raise
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# too often, for example it would raise entering the
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# Currencies menu entry !
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if context.get('date') and not context.get('disable_rate_date_check'):
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date = context.get('date')
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for currency_id in ids:
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# We could get the company from the currency, but it's not a
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# 'required' field, so we should probably continue to get it
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# from the user, shouldn't we ?
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user = self.pool['res.users'].browse(cr, uid, uid,
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context=context)
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# if it's the company currency, don't do anything
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# (there is just one old rate at 1.0)
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if user.company_id.currency_id.id == currency_id:
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continue
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else:
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# now we do the real work !
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cr.execute(
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'SELECT rate, name FROM res_currency_rate '
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'WHERE currency_id = %s '
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'AND name <= %s '
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'ORDER BY name desc LIMIT 1',
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(currency_id, date))
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if cr.rowcount:
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rate_date = cr.fetchone()[1]
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rate_date_dt = fields.Datetime.from_string(rate_date)
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date_dt = fields.Datetime.from_string(date)
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max_delta = user.company_id.currency_rate_max_delta
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if (date_dt - rate_date_dt).days > max_delta:
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currency = self.browse(
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cr, uid, currency_id, context=context)
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raise Warning(
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_('You are requesting a rate conversion on %s '
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'for currency %s but the nearest '
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'rate before that date is '
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'dated %s and the maximum currency '
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'rate time delta for '
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'your company is %s days')
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% (date, currency.name, rate_date, max_delta))
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# Now we call the regular function from the "base" module
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return super(ResCurrency, self)._get_current_rate(
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cr, uid, ids, raise_on_no_rate=raise_on_no_rate, context=context)
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