# -*- coding: utf-8 -*- ############################################################################## # # OpenERP, Open Source Management Solution # Copyright (C) 2004-2009 Tiny SPRL (). # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as # published by the Free Software Foundation, either version 3 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see . # ############################################################################## import time import netsvc from osv import fields, osv import tools from tools.misc import currency from tools.translate import _ class res_currency(osv.osv): def _current_rate(self, cr, uid, ids, name, arg, context=None): if context is None: context = {} res = {} if 'date' in context: date = context['date'] else: date = time.strftime('%Y-%m-%d') date = date or time.strftime('%Y-%m-%d') # Convert False values to None ... currency_rate_type = context.get('currency_rate_type_id') or None # ... and use 'is NULL' instead of '= some-id'. operator = '=' if currency_rate_type else 'is' for id in ids: cr.execute("SELECT currency_id, rate FROM res_currency_rate WHERE currency_id = %s AND name <= %s AND currency_rate_type_id " + operator +" %s ORDER BY name desc LIMIT 1" ,(id, date, currency_rate_type)) if cr.rowcount: id, rate = cr.fetchall()[0] res[id] = rate else: res[id] = 0 return res _name = "res.currency" _description = "Currency" _columns = { # Note: 'code' column was removed as of v6.0, the 'name' should now hold the ISO code. 'name': fields.char('Currency', size=32, required=True, help="Currency Code (ISO 4217)"), 'symbol': fields.char('Symbol', size=3, help="Currency sign, to be used when printing amounts."), 'rate': fields.function(_current_rate, method=True, string='Current Rate', digits=(12,6), help='The rate of the currency to the currency of rate 1.'), 'rate_ids': fields.one2many('res.currency.rate', 'currency_id', 'Rates'), 'accuracy': fields.integer('Computational Accuracy'), 'rounding': fields.float('Rounding Factor', digits=(12,6)), 'active': fields.boolean('Active'), 'company_id':fields.many2one('res.company', 'Company'), 'date': fields.date('Date'), 'base': fields.boolean('Base'), 'position': fields.selection([('after','After Amount'),('before','Before Amount')], 'Symbol position', help="Determines where the currency symbol should be placed after or before the amount.") } _defaults = { 'active': lambda *a: 1, 'position' : 'after', } _sql_constraints = [ # this constraint does not cover all cases due to SQL NULL handling for company_id, # so it is complemented with a unique index (see below). The constraint and index # share the same prefix so that IntegrityError triggered by the index will be caught # and reported to the user with the constraint's error message. ('unique_name_company_id', 'unique (name, company_id)', 'The currency code must be unique per company!'), ] _order = "name" def init(self, cr): # CONSTRAINT/UNIQUE INDEX on (name,company_id) # /!\ The unique constraint 'unique_name_company_id' is not sufficient, because SQL92 # only support field names in constraint definitions, and we need a function here: # we need to special-case company_id to treat all NULL company_id as equal, otherwise # we would allow duplicate "global" currencies (all having company_id == NULL) cr.execute("""SELECT indexname FROM pg_indexes WHERE indexname = 'res_currency_unique_name_company_id_idx'""") if not cr.fetchone(): cr.execute("""CREATE UNIQUE INDEX res_currency_unique_name_company_id_idx ON res_currency (name, (COALESCE(company_id,-1)))""") def read(self, cr, user, ids, fields=None, context=None, load='_classic_read'): res = super(osv.osv, self).read(cr, user, ids, fields, context, load) currency_rate_obj = self.pool.get('res.currency.rate') for r in res: if r.__contains__('rate_ids'): rates=r['rate_ids'] if rates: currency_date = currency_rate_obj.read(cr, user, rates[0], ['name'])['name'] r['date'] = currency_date return res def name_get(self, cr, uid, ids, context=None): if not ids: return [] if isinstance(ids, (int, long)): ids = [ids] reads = self.read(cr, uid, ids, ['name','symbol'], context=context, load='_classic_write') return [(x['id'], tools.ustr(x['name']) + (x['symbol'] and (' (' + tools.ustr(x['symbol']) + ')') or '')) for x in reads] def round(self, cr, uid, currency, amount): if currency.rounding == 0: return 0.0 else: # /!\ First member below must be rounded to full unit! # Do not pass a rounding digits value to round() return round(amount / currency.rounding) * currency.rounding def is_zero(self, cr, uid, currency, amount): return abs(self.round(cr, uid, currency, amount)) < currency.rounding def _get_conversion_rate(self, cr, uid, from_currency, to_currency, context=None): if context is None: context = {} ctx = context.copy() ctx.update({'currency_rate_type_id': ctx.get('currency_rate_type_from')}) from_currency = self.browse(cr, uid, from_currency.id, context=ctx) ctx.update({'currency_rate_type_id': ctx.get('currency_rate_type_to')}) to_currency = self.browse(cr, uid, to_currency.id, context=ctx) if from_currency.rate == 0 or to_currency.rate == 0: date = context.get('date', time.strftime('%Y-%m-%d')) if from_currency.rate == 0: currency_symbol = from_currency.symbol else: currency_symbol = to_currency.symbol raise osv.except_osv(_('Error'), _('No rate found \n' \ 'for the currency: %s \n' \ 'at the date: %s') % (currency_symbol, date)) return to_currency.rate/from_currency.rate def compute(self, cr, uid, from_currency_id, to_currency_id, from_amount, round=True, currency_rate_type_from=False, currency_rate_type_to=False, context=None): if not context: context = {} if not from_currency_id: from_currency_id = to_currency_id if not to_currency_id: to_currency_id = from_currency_id xc = self.browse(cr, uid, [from_currency_id,to_currency_id], context=context) from_currency = (xc[0].id == from_currency_id and xc[0]) or xc[1] to_currency = (xc[0].id == to_currency_id and xc[0]) or xc[1] if (to_currency_id == from_currency_id) and (currency_rate_type_from == currency_rate_type_to): if round: return self.round(cr, uid, to_currency, from_amount) else: return from_amount else: context.update({'currency_rate_type_from': currency_rate_type_from, 'currency_rate_type_to': currency_rate_type_to}) rate = self._get_conversion_rate(cr, uid, from_currency, to_currency, context=context) if round: return self.round(cr, uid, to_currency, from_amount * rate) else: return (from_amount * rate) res_currency() class res_currency_rate_type(osv.osv): _name = "res.currency.rate.type" _description = "Currency Rate Type" _columns = { 'name': fields.char('Name', size=64, required=True, translate=True), } res_currency_rate_type() class res_currency_rate(osv.osv): _name = "res.currency.rate" _description = "Currency Rate" _columns = { 'name': fields.date('Date', required=True, select=True), 'rate': fields.float('Rate', digits=(12,6), required=True, help='The rate of the currency to the currency of rate 1'), 'currency_id': fields.many2one('res.currency', 'Currency', readonly=True), 'currency_rate_type_id': fields.many2one('res.currency.rate.type', 'Currency Rate Type', help="Allow you to define your own currency rate types, like 'Average' or 'Year to Date'. Leave empty if you simply want to use the normal 'spot' rate type"), } _defaults = { 'name': lambda *a: time.strftime('%Y-%m-%d'), } _order = "name desc" res_currency_rate() # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: