source: main/waeup.uniben/trunk/src/waeup/uniben/students/utils.py @ 14162

Last change on this file since 14162 was 14038, checked in by Henrik Bettermann, 8 years ago

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1## $Id: utils.py 14038 2016-07-31 09:08:29Z henrik $
2##
3## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
4## This program is free software; you can redistribute it and/or modify
5## it under the terms of the GNU General Public License as published by
6## the Free Software Foundation; either version 2 of the License, or
7## (at your option) any later version.
8##
9## This program is distributed in the hope that it will be useful,
10## but WITHOUT ANY WARRANTY; without even the implied warranty of
11## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12## GNU General Public License for more details.
13##
14## You should have received a copy of the GNU General Public License
15## along with this program; if not, write to the Free Software
16## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17##
18import grok
19from time import time
20from zope.component import createObject, getUtility
21from waeup.kofa.interfaces import (IKofaUtils,
22    CLEARED, RETURNING, PAID, REGISTERED, VALIDATED)
23from waeup.kofa.utils.helpers import to_timezone
24from waeup.kofa.students.utils import trans
25from kofacustom.nigeria.students.utils import NigeriaStudentsUtils
26from waeup.uniben.interfaces import MessageFactory as _
27
28class CustomStudentsUtils(NigeriaStudentsUtils):
29    """A collection of customized methods.
30
31    """
32
33    def getReturningData(self, student):
34        """ This method defines what happens after school fee payment
35        of returning students depending on the student's senate verdict.
36        """
37        prev_level = student['studycourse'].current_level
38        cur_verdict = student['studycourse'].current_verdict
39        if cur_verdict in ('A','B','L','M','N','Z',):
40            # Successful student
41            new_level = divmod(int(prev_level),100)[0]*100 + 100
42        elif cur_verdict == 'C':
43            # Student on probation
44            new_level = int(prev_level) + 10
45        else:
46            # Student is somehow in an undefined state.
47            # Level has to be set manually.
48            new_level = prev_level
49        new_session = student['studycourse'].current_session + 1
50        return new_session, new_level
51
52
53    def checkAccommodationRequirements(self, student, acc_details):
54        if acc_details.get('expired', False):
55            startdate = acc_details.get('startdate')
56            enddate = acc_details.get('enddate')
57            if startdate and enddate:
58                tz = getUtility(IKofaUtils).tzinfo
59                startdate = to_timezone(
60                    startdate, tz).strftime("%d/%m/%Y %H:%M:%S")
61                enddate = to_timezone(
62                    enddate, tz).strftime("%d/%m/%Y %H:%M:%S")
63                return _("Outside booking period: ${a} - ${b}",
64                         mapping = {'a': startdate, 'b': enddate})
65            else:
66                return _("Outside booking period.")
67        if not student.is_postgrad and student.current_mode != 'ug_ft':
68            return _("Only undergraduate full-time students are eligible to book accommodation.")
69        bt = acc_details.get('bt')
70        if not bt:
71            return _("Your data are incomplete.")
72        if not student.state in acc_details['allowed_states']:
73            return _("You are in the wrong registration state.")
74        if student['studycourse'].current_session != acc_details[
75            'booking_session']:
76            return _('Your current session does not '
77                     'match accommodation session.')
78        stage = bt.split('_')[2]
79        if not student.is_postgrad and stage != 'fr' and not student[
80            'studycourse'].previous_verdict in ('A', 'B', 'F', 'J', 'C', 'Z'):
81            return _("Your are not eligible to book accommodation.")
82        if str(acc_details[
83            'booking_session']) in student['accommodation'].keys():
84            return _('You already booked a bed space in '
85                     'current accommodation session.')
86        return
87
88    def getAccommodationDetails(self, student):
89        """Determine the accommodation data of a student.
90        """
91        d = {}
92        d['error'] = u''
93        hostels = grok.getSite()['hostels']
94        d['booking_session'] = hostels.accommodation_session
95        d['allowed_states'] = hostels.accommodation_states
96        d['startdate'] = hostels.startdate
97        d['enddate'] = hostels.enddate
98        d['expired'] = hostels.expired
99        # Determine bed type
100        studycourse = student['studycourse']
101        certificate = getattr(studycourse,'certificate',None)
102        entry_session = studycourse.entry_session
103        current_level = studycourse.current_level
104        if None in (entry_session, current_level, certificate):
105            return d
106        if student.sex == 'f':
107            sex = 'female'
108        else:
109            sex = 'male'
110        if student.is_postgrad:
111            bt = 'all'
112            special_handling = 'pg'
113        else:
114            end_level = certificate.end_level
115            if current_level == 10:
116                bt = 'pr'
117            elif entry_session == grok.getSite()['hostels'].accommodation_session:
118                bt = 'fr'
119            elif current_level >= end_level:
120                bt = 'fi'
121            else:
122                bt = 're'
123            special_handling = 'regular'
124            if student.faccode in ('MED', 'DEN'):
125                special_handling = 'clinical'
126            elif student.certcode in ('BARTMAS', 'BARTTHR', 'BARTFAA',
127                                      'BAEDFAA', 'BSCEDECHED'):
128                special_handling = 'ekenwan'
129        d['bt'] = u'%s_%s_%s' % (special_handling,sex,bt)
130        return d
131
132    def _paymentMade(self, student, session):
133        if len(student['payments']):
134            for ticket in student['payments'].values():
135                if ticket.p_state == 'paid' and \
136                    ticket.p_category == 'schoolfee' and \
137                    ticket.p_session == session:
138                    return True
139        return False
140
141    def _isPaymentDisabled(self, p_session, category, student):
142        academic_session = self._getSessionConfiguration(p_session)
143        if category == 'schoolfee' and \
144            'sf_all' in academic_session.payment_disabled:
145            return True
146        if category == 'hostel_maintenance' and \
147            'maint_all' in academic_session.payment_disabled:
148            return True
149        return False
150
151    #def _hostelApplicationPaymentMade(self, student, session):
152    #    if len(student['payments']):
153    #        for ticket in student['payments'].values():
154    #            if ticket.p_state == 'paid' and \
155    #                ticket.p_category == 'hostel_application' and \
156    #                ticket.p_session == session:
157    #                return True
158    #    return False
159
160    def setPaymentDetails(self, category, student,
161            previous_session, previous_level):
162        """Create Payment object and set the payment data of a student for
163        the payment category specified.
164
165        """
166        p_item = u''
167        amount = 0.0
168        if previous_session:
169            if previous_session < student['studycourse'].entry_session:
170                return _('The previous session must not fall below '
171                         'your entry session.'), None
172            if category == 'schoolfee':
173                # School fee is always paid for the following session
174                if previous_session > student['studycourse'].current_session:
175                    return _('This is not a previous session.'), None
176            else:
177                if previous_session > student['studycourse'].current_session - 1:
178                    return _('This is not a previous session.'), None
179            p_session = previous_session
180            p_level = previous_level
181            p_current = False
182        else:
183            p_session = student['studycourse'].current_session
184            p_level = student['studycourse'].current_level
185            p_current = True
186        academic_session = self._getSessionConfiguration(p_session)
187        if academic_session == None:
188            return _(u'Session configuration object is not available.'), None
189        # Determine fee.
190        if category == 'transfer':
191            amount = academic_session.transfer_fee
192        elif category == 'transcript':
193            amount = academic_session.transcript_fee
194        elif category == 'gown':
195            amount = academic_session.gown_fee
196        elif category == 'jupeb':
197            amount = academic_session.jupeb_fee
198        elif category == 'bed_allocation':
199            p_item = self.getAccommodationDetails(student)['bt']
200            amount = academic_session.booking_fee
201            # Add student union dues
202            if not student.is_postgrad:
203                stage = self.getAccommodationDetails(student)['bt']
204                stage = stage.split('_')[2]
205                if stage == 'fr':
206                    amount += 500.0
207                elif stage in ('fi', 're') and student[
208                    'studycourse'].previous_verdict in ('A', 'B', 'F', 'J', 'C', 'Z'):
209                    amount += 300.0
210                else:
211                    amount = 0.0
212        elif category == 'hostel_maintenance':
213            amount = 0.0
214            bedticket = student['accommodation'].get(
215                str(student.current_session), None)
216            if bedticket is not None and bedticket.bed is not None:
217                p_item = bedticket.bed_coordinates
218                if bedticket.bed.__parent__.maint_fee > 0:
219                    amount = bedticket.bed.__parent__.maint_fee
220                else:
221                    # fallback
222                    amount = academic_session.maint_fee
223            else:
224                return _(u'No bed allocated.'), None
225        #elif category == 'hostel_application':
226        #    amount = 1000.0
227        #elif category.startswith('tempmaint'):
228        #    if not self._hostelApplicationPaymentMade(
229        #        student, student.current_session):
230        #        return _(
231        #            'You have not yet paid the hostel application fee.'), None
232        #    if category == 'tempmaint_1':
233        #        amount = 8150.0
234        #    elif category == 'tempmaint_2':
235        #        amount = 12650.0
236        #    elif category == 'tempmaint_3':
237        #        amount = 9650.0
238        elif category == 'clearance':
239            p_item = student.certcode
240            if p_item is None:
241                return _('Study course data are incomplete.'), None
242            if student.faccode == 'JUPEB':
243                return _('No payment required.'), None
244            if student.faccode.startswith('FCETA'):
245                # ASABA and AKOKA
246                amount = 30000.0
247            elif p_item in ('BSCANA', 'BSCMBC', 'BMLS', 'BSCNUR', 'BSCPHS', 'BDS',
248                'MBBSMED', 'MBBSNDU'):
249                amount = 65000.0
250            else:
251                amount = 45000.0
252        elif category == 'schoolfee':
253            try:
254                certificate = student['studycourse'].certificate
255                p_item = certificate.code
256            except (AttributeError, TypeError):
257                return _('Study course data are incomplete.'), None
258
259            #####################################################
260            #if student.faccode == 'JUPEB':
261            #    return _('Payment temporarily disabled.'), None
262            #####################################################
263
264
265            if previous_session:
266                # Students can pay for previous sessions in all workflow states.
267                # Fresh students are excluded by the update method of the
268                # PreviousPaymentAddFormPage.
269                if previous_session == student['studycourse'].entry_session:
270                    if student.is_foreigner:
271                        amount = getattr(certificate, 'school_fee_3', 0.0)
272                    else:
273                        amount = getattr(certificate, 'school_fee_1', 0.0)
274                else:
275                    if student.is_foreigner:
276                        amount = getattr(certificate, 'school_fee_4', 0.0)
277                    else:
278                        amount = getattr(certificate, 'school_fee_2', 0.0)
279            else:
280                if student.state == CLEARED:
281                    if student.is_foreigner:
282                        amount = getattr(certificate, 'school_fee_3', 0.0)
283                    else:
284                        amount = getattr(certificate, 'school_fee_1', 0.0)
285                elif student.state in (PAID, REGISTERED, VALIDATED):
286                    p_session += 1
287                    # We don't know which level the student is paying for.
288                    p_level = None
289                    academic_session = self._getSessionConfiguration(p_session)
290                    if academic_session == None:
291                        return _(u'Session configuration object is not available.'), None
292
293                    # Students are only allowed to pay for the next session
294                    # if current session payment
295                    # has really been made, i.e. payment object exists.
296                    #if not self._paymentMade(
297                    #    student, student.current_session):
298                    #    return _('You have not yet paid your current/active' +
299                    #             ' session. Please use the previous session' +
300                    #             ' payment form first.'), None
301
302                    if student.is_foreigner:
303                        amount = getattr(certificate, 'school_fee_4', 0.0)
304                    else:
305                        amount = getattr(certificate, 'school_fee_2', 0.0)
306                elif student.state == RETURNING:
307                    # In case of returning school fee payment the payment session
308                    # and level contain the values of the session the student
309                    # has paid for.
310                    p_session, p_level = self.getReturningData(student)
311                    academic_session = self._getSessionConfiguration(p_session)
312                    if academic_session == None:
313                        return _(u'Session configuration object is not available.'), None
314
315                    # Students are only allowed to pay for the next session
316                    # if current session payment has really been made,
317                    # i.e. payment object exists and is paid.
318                    #if not self._paymentMade(
319                    #    student, student.current_session):
320                    #    return _('You have not yet paid your current/active' +
321                    #             ' session. Please use the previous session' +
322                    #             ' payment form first.'), None
323
324                    if student.is_foreigner:
325                        amount = getattr(certificate, 'school_fee_4', 0.0)
326                    else:
327                        amount = getattr(certificate, 'school_fee_2', 0.0)
328            # Give 50% school fee discount to staff members.
329            if student.is_staff:
330                amount /= 2
331        if amount in (0.0, None):
332            return _('Amount could not be determined.'), None
333        # Add session specific penalty fee.
334        if category == 'schoolfee' and student.is_postgrad:
335            amount += academic_session.penalty_pg
336        elif category == 'schoolfee' and student.current_mode == ('ug_ft'):
337            amount += academic_session.penalty_ug_ft
338        elif category == 'schoolfee' and student.current_mode == ('ug_pt'):
339            amount += academic_session.penalty_ug_pt
340        elif category == 'schoolfee' and student.current_mode == ('ug_sw'):
341            amount += academic_session.penalty_sw
342        if category.startswith('tempmaint'):
343            p_item = getUtility(IKofaUtils).PAYMENT_CATEGORIES[category]
344            p_item = unicode(p_item)
345            # Now we change the category because tempmaint payments
346            # will be obsolete when Uniben returns to Kofa bed allocation.
347            category = 'hostel_maintenance'
348        # Create ticket.
349        if self.samePaymentMade(student, category, p_item, p_session):
350            return _('This type of payment has already been made.'), None
351        if self._isPaymentDisabled(p_session, category, student):
352            return _('This category of payments has been disabled.'), None
353        payment = createObject(u'waeup.StudentOnlinePayment')
354        timestamp = ("%d" % int(time()*10000))[1:]
355        payment.p_id = "p%s" % timestamp
356        payment.p_category = category
357        payment.p_item = p_item
358        payment.p_session = p_session
359        payment.p_level = p_level
360        payment.p_current = p_current
361        payment.amount_auth = amount
362        return None, payment
363
364    def maxCredits(self, studylevel):
365        """Return maximum credits.
366
367        """
368        studycourse = studylevel.__parent__
369        certificate = getattr(studycourse,'certificate', None)
370        current_level = studycourse.current_level
371        if None in (current_level, certificate):
372            return 0
373        end_level = certificate.end_level
374        if current_level >= end_level:
375            return 51
376        return 50
377
378    def clearance_disabled_message(self, student):
379        if student.is_postgrad:
380            return None
381        try:
382            session_config = grok.getSite()[
383                'configuration'][str(student.current_session)]
384        except KeyError:
385            return _('Session configuration object is not available.')
386        if not session_config.clearance_enabled:
387            return _('Clearance is disabled for this session.')
388        return None
389
390    #: A tuple containing the names of registration states in which changing of
391    #: passport pictures is allowed.
392    PORTRAIT_CHANGE_STATES = ()
393
394    # Uniben prefix
395    STUDENT_ID_PREFIX = u'B'
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