# routine to create CSV file from Plone member attributes
# filters list of member attributes and presents in nice order

import csv
import StringIO
import time

def makeRow():
    return [''] * 2

def createcsv(self):
    """ returns a csv file with member attributes """
    request = self.REQUEST
    text = StringIO.StringIO()
    memberProperties = self.portal_memberdata.propertyIds()
    acl_users = self.acl_users
    
    writer = csv.writer(text)

    # make heading row
    row = makeRow()
    row[0] = 'member_id'
    row[1] = 'password'

    writer.writerow(row)
    
    for member in self.portal_membership.listMembers():
        
        # make row for each member full of blank values
        row = makeRow()
        member_id = member.getId()
        user = acl_users.getUser(name=member_id)
        password = user._getPassword()
        row[0] = member_id
        row[1] = password

        writer.writerow(row)


    request.RESPONSE.setHeader('Content-Type','application/csv')
    request.RESPONSE.setHeader('Content-Length',len(text.getvalue()))
    request.RESPONSE.setHeader('Content-Disposition','inline;filename=%smembers.csv' %
                                time.strftime("%Y%m%d-%H%M%S-",time.localtime()))

    return text.getvalue()