~openerp-commiter/openobject-addons/trunk-extra-addons

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# -*- encoding: utf-8 -*-
##############################################################################
#
# Copyright (c) 2004-2007 TINY SPRL. (http://tiny.be) All Rights Reserved.
#
# $Id: account.py 1005 2005-07-25 08:41:42Z nicoe $
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

from osv import fields, osv
import mx.DateTime
from mx.DateTime import RelativeDateTime

class account_payment_term(osv.osv):
    _name = "account.payment.term"
    _inherit = "account.payment.term"
    _columns = {
        'cash_discount_ids': fields.one2many('account.cash.discount', 'payment_id', 'Cash Discounts'),
    }
    def get_discounts(self,cr,uid,id,base_date, context={}):
        """
        return the list of (date,percentage) ordered by date for the
        payment term with the corresponding id. return [] if no cash
        discount are defined. base_date is the date from where the
        discounts are computed.
        """
        
        pt = self.browse(cr, uid, id, context)
        
        if not pt.cash_discount_ids:
            return []

        res=[]
        for d in pt.cash_discount_ids: 
            res.append(
                ((mx.DateTime.strptime(base_date,'%Y-%m-%d') +\
                  RelativeDateTime(days=d.delay+1)).strftime("%Y-%m-%d"),
                 d.discount)
                )
            
        res.sort(cmp=lambda x,y: cmp(x[0],y[0]))
        return res
account_payment_term()

class account_cash_discount(osv.osv):
    _name = "account.cash.discount"
    _description = "Cash Discount" #A reduction in the price  if payment is made within a stipulated period.
    _columns = {
        'name': fields.char('Name', size=32),
        'delay': fields.integer('Number of Days', required=True),
        'discount': fields.float('Discount (%)', digits=(16,6),required=True),
        'payment_id': fields.many2one('account.payment.term','Associated Payment Term'),
        'credit_account_id': fields.many2one('account.account', 'Credit Account'),
        'debit_account_id': fields.many2one('account.account', 'Debit Account'),
    }
account_cash_discount()

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