source: main/waeup.uniben/trunk/src/waeup/uniben/students/payments.py @ 13599

## $Id: payments.py 13583 2016-01-10 22:18:06Z henrik $
##
## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
## 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
##
"""
Student payment components.
"""
import grok
from datetime import datetime
from zope.component import getUtility
from zope.component.interfaces import IFactory
from zope.interface import implementedBy
from waeup.kofa.interfaces import IKofaUtils
from waeup.kofa.students.interfaces import IStudentNavigation
from waeup.kofa.students.payments import (
    StudentOnlinePayment, StudentOnlinePaymentFactory)
from waeup.kofa.utils.helpers import attrs_to_fields, to_timezone
from waeup.uniben.students.interfaces import ICustomStudentOnlinePayment

class CustomStudentOnlinePayment(StudentOnlinePayment):
    """This is a custom online payment for students.

    Since this class inherits from StudentOnlinePayment, it automatically
    implements the interfaces of the parent class which means
    all viewlets and views meant for StudentOnlinePayment
    can also be accessed in the customized system.
    """
    grok.implements(ICustomStudentOnlinePayment, IStudentNavigation)
    grok.provides(ICustomStudentOnlinePayment)

    def __init__(self):
        super(CustomStudentOnlinePayment, self).__init__()
        return

    @property
    def student(self):
        return self.__parent__.__parent__

    @property
    def formatted_p_date(self):
        if isinstance(self.payment_date, datetime):
            tz = getUtility(IKofaUtils).tzinfo
            try:
                timestamp = to_timezone(
                    self.payment_date, tz).strftime("%Y-%m-%d %H:%M:%S")
            except ValueError:
                return None
            return timestamp
        else:
            return None

CustomStudentOnlinePayment = attrs_to_fields(
    CustomStudentOnlinePayment, omit=['display_item'])

class CustomStudentOnlinePaymentFactory(StudentOnlinePaymentFactory):
    """A factory for student online payments.
    """

    def __call__(self, *args, **kw):
        return CustomStudentOnlinePayment()

    def getInterfaces(self):
        return implementedBy(CustomStudentOnlinePayment)