partner_credit_limit/models/account_invoice.py

#-*- coding:utf-8 -*-
from openerp import models, api, _
from openerp.exceptions import Warning
from datetime import datetime, date


class account_invoice(models.Model):
    _inherit = "account.invoice"

    def invoice_validate(self):
        self.check_limit()
        self.check_morosidad()
        return super(account_invoice, self).invoice_validate()

    @api.one
    def check_limit(self):

        if self.contado == True:
            return True

        available_credit = self.partner_id.credit_limit - self.partner_id.credit

        if self.amount_total > available_credit:
            msg = 'No se puede confirmar la factura ya que el cliente no tiene crédito suficiente.\
                    Pruebe marcar la opción "Contado"'
            raise Warning(_(msg))
            return False
        return True

    @api.multi
    def check_morosidad(self):
        now = datetime.now()
        hoy = datetime.strptime(now.strftime("%Y-%m-%d"),"%Y-%m-%d")
        domain = [('id', '=', self.partner_id.id)]
        partner = self.env['res.partner'].search(domain)
        invoices = self.env['account.invoice'].search([('partner_id', '=',self.partner_id.id),('state', '=','open'),('type', '=', 'out_invoice'),('journal_id.type','=','sale')])
        for item in invoices:
            moveLine = self.env['account.move.line'].search([('move_id','=', item.move_id.id),('debit','>',0)])
            if moveLine.date_maturity < now.strftime("%Y-%m-%d"):
                vencimiento = datetime.strptime(moveLine.date_maturity,"%Y-%m-%d")
                if (hoy-vencimiento).days > partner.morosidad:
                    raise Warning(_("El cliente %s tiene cuotas vencidas con más de %s días de atraso") % (partner.name, partner.morosidad))
                    return False
        return True

    # @api.model
    # def save_payments_invoice(self,values):
    #
    #     bank_payments_type_id = values['bankPayments']['bank_payments_type_id']
    #     partner = self.env['res.partner'].browse(values['partnerId'])
    #
    #     if bank_payments_type_id is not None:
    #         payment_type = self.env['res.bank.payments.type'].browse(bank_payments_type_id)
    #         if payment_type.code == 'CH' and values['amountPayments'] > partner.check_limit:
    #             return {
    #                 'process': False,
    #                 'removeModal': False,
    #                 'message' : "El monto a pagar excede el límite de crédito concedido en cheques"
    #             }
    #     return self.env['account.invoice'].save_payments_invoice(values)