##
## batching.py
## Login : <uli@pu.smp.net>
## Started on  Fri Jul 23 15:42:46 2010 Uli Fouquet
## $Id$
## 
## Copyright (C) 2010 Uli Fouquet
## 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
##
"""Batch processing for applicants.
"""
import grok
from zope.interface import Interface
from waeup.sirp.interfaces import IBatchProcessor
from waeup.sirp.utils.batching import BatchProcessor
from waeup.sirp.applicants.jambtables.interfaces import IApplicantPDEImportData

class JAMBDataImporter(BatchProcessor):
    """An importer for applicants.
    """
    grok.implements(IBatchProcessor)
    grok.provides(IBatchProcessor)
    grok.context(Interface)
    util_name = 'application importer'
    grok.name(util_name)

    name = u'JAMB Data Importer'
    mode = u'create'
    iface = IApplicantPDEImportData

    location_fields = ['reg_no',]
    factory_name = 'waeup.Applicant'

    def parentsExist(self, row, site):
        return 'jambdata' in site.keys()

    def entryExists(self, row, site):
        return row['reg_no'] in site['jambdata'].keys()

    def getParent(self, row, site):
        return site['jambdata']

    def getEntry(self, row, site):
        if not self.entryExists(row, site):
            return None
        parent = self.getParent(row, site)
        return parent.get(row['reg_no'])

    def addEntry(self, obj, row, site):
        parent = self.getParent(row, site)
        reg_no = row['reg_no']
        parent[reg_no] = obj
        return

    def delEntry(self, row, site):
        parent = self.getParent(row, site)
        del parent[row['reg_no']]
        return