source: main/waeup.aaue/trunk/src/waeup/aaue/students/utils.py @ 17626

Last change on this file since 17626 was 17602, checked in by Henrik Bettermann, 15 months ago

Add payment disable item.
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1## $Id: utils.py 17602 2023-10-04 06:30:13Z 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
19import os
20import csv
21from time import time
22from zope.component import createObject, queryUtility
23from zope.catalog.interfaces import ICatalog
24from waeup.kofa.interfaces import (
25    ADMITTED, CLEARANCE, REQUESTED, CLEARED, RETURNING, PAID,
26    REGISTERED, VALIDATED, academic_sessions_vocab)
27from kofacustom.nigeria.students.utils import NigeriaStudentsUtils
28from waeup.kofa.accesscodes import create_accesscode
29from waeup.kofa.students.utils import trans
30from waeup.aaue.interfaces import MessageFactory as _
31
32MINIMUM_UNITS_THRESHOLD = 15
33
34SCHOOLFEES = dict()
35SFEECHANGES = (12, 13, 14, 15, 20, 21, 22, 23)
36
37for year in SFEECHANGES:
38    schoolfees_path = os.path.join(
39        os.path.dirname(__file__), 'schoolfees_%s.csv' %year)
40    reader = csv.DictReader(open(schoolfees_path, 'rb'))
41    SCHOOLFEES[year] = {item['code']:(item['tuition'], item.values()) for item in reader}
42
43acceptancefees_path = os.path.join(
44    os.path.dirname(__file__), 'acceptancefees.csv')
45reader = csv.DictReader(open(acceptancefees_path, 'rb'))
46ACCEPTANCEFEES = {item['code']:(item['acceptance'], item.values()) for item in reader}
47
48class CustomStudentsUtils(NigeriaStudentsUtils):
49    """A collection of customized methods.
50
51    """
52
53    # PORTRAIT_CHANGE_STATES = (ADMITTED, CLEARANCE, REQUESTED, CLEARED)
54
55    def allowPortraitChange(self, student):
56        if student.is_fresh:
57            return True
58        return False
59
60    def GPABoundaries(self, faccode=None, depcode=None,
61                            certcode=None, student=None):
62        if student and student.current_mode.startswith('dp'):
63            return ((1.5, 'IRNS / NER / NYV'),
64                    (2.4, 'Pass'),
65                    (3.5, 'Merit'),
66                    (4.5, 'Credit'),
67                    (5, 'Distinction'))
68        elif student:
69            return ((1, 'FRNS / NER / NYV'),
70                    (1.5, 'Pass'),
71                    (2.4, '3rd Class Honours'),
72                    (3.5, '2nd Class Honours Lower Division'),
73                    (4.5, '2nd Class Honours Upper Division'),
74                    (5, '1st Class Honours'))
75        # Session Results Presentations depend on certificate
76        results = None
77        if certcode:
78            cat = queryUtility(ICatalog, name='certificates_catalog')
79            results = list(
80                cat.searchResults(code=(certcode, certcode)))
81        if results and results[0].study_mode.startswith('dp'):
82            return ((1.5, 'IRNS / NER / NYV'),
83                    (2.4, 'Pass'),
84                    (3.5, 'Merit'),
85                    (4.5, 'Credit'),
86                    (5, 'Distinction'))
87        else:
88            return ((1, 'FRNS / NER / NYV'),
89                    (1.5, 'Pass'),
90                    (2.4, '3rd Class Honours'),
91                    (3.5, '2nd Class Honours Lower Division'),
92                    (4.5, '2nd Class Honours Upper Division'),
93                    (5, '1st Class Honours'))
94
95    def getClassFromCGPA(self, gpa, student):
96        gpa_boundaries = self.GPABoundaries(student=student)
97
98        try:
99            certificate = getattr(student['studycourse'],'certificate',None)
100            end_level = getattr(certificate, 'end_level', None)
101            final_level = max([studylevel.level for studylevel in student['studycourse'].values()])
102            if end_level and final_level >= end_level:
103                dummy, repeat = divmod(final_level, 100)
104                if gpa <= 5.1 and repeat == 20:
105                    # Irrespective of the CGPA of a student, if the He/She has
106                    # 3rd Extension, such student will be graduated with a "Pass".
107                    return 1, gpa_boundaries[1][1]
108        except ValueError:
109            pass
110
111        if gpa < gpa_boundaries[0][0]:
112            # FRNS / Fail
113            return 0, gpa_boundaries[0][1]
114        if student.entry_session < 2013 or \
115            student.current_mode.startswith('dp'):
116            if gpa < gpa_boundaries[1][0]:
117                # Pass
118                return 1, gpa_boundaries[1][1]
119        else:
120            if gpa < gpa_boundaries[1][0]:
121                # FRNS
122                # Pass degree has been phased out in 2013 for non-diploma
123                # students
124                return 0, gpa_boundaries[0][1]
125        if gpa < gpa_boundaries[2][0]:
126            # 3rd / Merit
127            return 2, gpa_boundaries[2][1]
128        if gpa < gpa_boundaries[3][0]:
129            # 2nd L / Credit
130            return 3, gpa_boundaries[3][1]
131        if gpa < gpa_boundaries[4][0]:
132            # 2nd U / Distinction
133            return 4, gpa_boundaries[4][1]
134        if gpa <= gpa_boundaries[5][0]:
135            # 1st
136            return 5, gpa_boundaries[5][1]
137        return
138
139    def getDegreeClassNumber(self, level_obj):
140        """Get degree class number (used for SessionResultsPresentation
141        reports).
142        """
143        certificate = getattr(level_obj.__parent__,'certificate', None)
144        end_level = getattr(certificate, 'end_level', None)
145        if level_obj.level_verdict in ('FRNS', 'NER', 'NYV'):
146            return 0
147        if end_level and level_obj.level >= end_level:
148            if level_obj.level > end_level:
149                # spill-over level
150                if level_obj.gpa_params[1] == 0:
151                    # no credits taken
152                    return 0
153            elif level_obj.gpa_params[1] < MINIMUM_UNITS_THRESHOLD:
154                # credits taken below limit
155                return 0
156            failed_courses = level_obj.passed_params[4]
157            not_taken_courses = level_obj.passed_params[5]
158            if '_m' in failed_courses:
159                return 0
160            if len(not_taken_courses) \
161                and not not_taken_courses == 'Nil':
162                return 0
163        elif level_obj.gpa_params[1] < MINIMUM_UNITS_THRESHOLD:
164            # credits taken below limit
165            return 0
166        # use gpa_boundaries above
167        return self.getClassFromCGPA(
168            level_obj.cumulative_params[0], level_obj.student)[0]
169
170    def increaseMatricInteger(self, student):
171        """Increase counter for matric numbers.
172        This counter can be a centrally stored attribute or an attribute of
173        faculties, departments or certificates. In the base package the counter
174        is as an attribute of the site configuration container.
175        """
176        if student.current_mode in ('ug_pt', 'de_pt', 'ug_dsh', 'de_dsh'):
177            grok.getSite()['configuration'].next_matric_integer += 1
178            return
179        elif student.is_postgrad:
180            grok.getSite()['configuration'].next_matric_integer_3 += 1
181            return
182        elif student.current_mode in ('dp_ft',):
183            grok.getSite()['configuration'].next_matric_integer_4 += 1
184            return
185        grok.getSite()['configuration'].next_matric_integer_2 += 1
186        return
187
188    def _concessionalPaymentMade(self, student):
189        if len(student['payments']):
190            for ticket in student['payments'].values():
191                if ticket.p_state == 'paid' and \
192                    ticket.p_category == 'concessional':
193                    return True
194        return False
195
196    def constructMatricNumber(self, student):
197        faccode = student.faccode
198        depcode = student.depcode
199        certcode = student.certcode
200        degree = getattr(
201            getattr(student.get('studycourse', None), 'certificate', None),
202                'degree', None)
203        year = unicode(student.entry_session)[2:]
204        if not student.state in (PAID, ) or not student.is_fresh or \
205            student.current_mode in ('found', 'ijmbe'):
206            return _('Matriculation number cannot be set.'), None
207        #if student.current_mode not in ('mug_ft', 'mde_ft') and \
208        #    not self._concessionalPaymentMade(student):
209        #    return _('Matriculation number cannot be set.'), None
210        if student.is_postgrad:
211            next_integer = grok.getSite()['configuration'].next_matric_integer_3
212            if not degree or next_integer == 0:
213                return _('Matriculation number cannot be set.'), None
214            if student.faccode in ('IOE'):
215                return None, "AAU/SPS/%s/%s/%s/%05d" % (
216                    faccode, year, degree, next_integer)
217            return None, "AAU/SPS/%s/%s/%s/%s/%05d" % (
218                faccode, depcode, year, degree, next_integer)
219        if student.current_mode in ('ug_dsh', 'de_dsh'):
220            next_integer = grok.getSite()['configuration'].next_matric_integer
221            if next_integer == 0:
222                return _('Matriculation number cannot be set.'), None
223            return None, "DSH/%s/%s/%s/%05d" % (
224                faccode, depcode, year, next_integer)
225        if student.current_mode in ('ug_pt', 'de_pt'):
226            next_integer = grok.getSite()['configuration'].next_matric_integer
227            if next_integer == 0:
228                return _('Matriculation number cannot be set.'), None
229            return None, "PTP/%s/%s/%s/%05d" % (
230                faccode, depcode, year, next_integer)
231        if student.current_mode in ('dp_ft',):
232            next_integer = grok.getSite()['configuration'].next_matric_integer_4
233            if next_integer == 0:
234                return _('Matriculation number cannot be set.'), None
235            return None, "IOE/DIP/%s/%05d" % (year, next_integer)
236        next_integer = grok.getSite()['configuration'].next_matric_integer_2
237        if next_integer == 0:
238            return _('Matriculation number cannot be set.'), None
239        if student.faccode in ('FBM', 'FCS', 'FMLS'):
240            return None, "CMS/%s/%s/%s/%05d" % (
241                faccode, depcode, year, next_integer)
242        return None, "%s/%s/%s/%05d" % (faccode, depcode, year, next_integer)
243
244    def getReturningData(self, student):
245        """ This method defines what happens after school fee payment
246        of returning students depending on the student's senate verdict.
247        """
248        prev_level = student['studycourse'].current_level
249        cur_verdict = student['studycourse'].current_verdict
250        if cur_verdict in ('A','B','L','M','N','Z',):
251            # Successful student
252            new_level = divmod(int(prev_level),100)[0]*100 + 100
253        elif cur_verdict == 'C':
254            # Student on probation
255            new_level = int(prev_level) + 10
256        else:
257            # Student is somehow in an undefined state.
258            # Level has to be set manually.
259            new_level = prev_level
260        new_session = student['studycourse'].current_session + 1
261        return new_session, new_level
262
263    def _isPaymentDisabled(self, p_session, category, student):
264        academic_session = self._getSessionConfiguration(p_session)
265        if category.startswith('schoolfee'):
266            if 'all_returning' in academic_session.payment_disabled and \
267            student.state == RETURNING:
268                return True
269            if 'sf_all' in academic_session.payment_disabled:
270                return True
271            if 'sf_pg' in academic_session.payment_disabled and \
272                student.is_postgrad:
273                return True
274            if 'sf_ug_pt' in academic_session.payment_disabled and \
275                student.current_mode in ('ug_pt', 'de_pt'):
276                return True
277            if 'sf_found' in academic_session.payment_disabled and \
278                student.current_mode == 'found':
279                return True
280        if category.startswith('clearance') and \
281            'cl_regular' in academic_session.payment_disabled and \
282            student.current_mode in ('ug_ft', 'de_ft', 'mug_ft', 'mde_ft'):
283            return True
284        if category == 'hostel_maintenance' and \
285            'maint_all' in academic_session.payment_disabled:
286            return True
287        return False
288
289    def setPaymentDetails(self, category, student,
290            previous_session=None, previous_level=None, combi=[]):
291        """Create Payment object and set the payment data of a student for
292        the payment category specified.
293
294        """
295        details = {}
296        p_item = u''
297        amount = 0.0
298        error = u''
299        if previous_session:
300            if previous_session < student['studycourse'].entry_session:
301                return _('The previous session must not fall below '
302                         'your entry session.'), None
303            if category == 'schoolfee':
304                # School fee is always paid for the following session
305                if previous_session > student['studycourse'].current_session:
306                    return _('This is not a previous session.'), None
307            else:
308                if previous_session > student['studycourse'].current_session - 1:
309                    return _('This is not a previous session.'), None
310            p_session = previous_session
311            p_level = previous_level
312            p_current = False
313        else:
314            p_session = student['studycourse'].current_session
315            p_level = student['studycourse'].current_level
316            p_current = True
317        academic_session = self._getSessionConfiguration(p_session)
318        if academic_session == None:
319            return _(u'Session configuration object is not available.'), None
320        # Determine fee.
321        if category == 'transfer':
322            amount = academic_session.transfer_fee
323        elif category == 'transcript_local':
324            amount = academic_session.transcript_fee_local
325        elif category == 'transcript_inter':
326            amount = academic_session.transcript_fee_inter
327        elif category == 'bed_allocation':
328            acco_details = self.getAccommodationDetails(student)
329            p_session = acco_details['booking_session']
330            p_item = acco_details['bt']
331            amount = academic_session.booking_fee
332        elif category == 'hostel_maintenance':
333            amount = 0.0
334            booking_session = grok.getSite()['hostels'].accommodation_session
335            bedticket = student['accommodation'].get(str(booking_session), None)
336            if bedticket is not None and bedticket.bed is not None:
337                p_session = booking_session
338                p_item = bedticket.display_coordinates
339                if bedticket.bed.__parent__.maint_fee > 0:
340                    amount = bedticket.bed.__parent__.maint_fee
341                else:
342                    # fallback
343                    amount = academic_session.maint_fee
344            else:
345                return _(u'No bed allocated.'), None
346        elif student.current_mode == 'found' and category not in (
347            'schoolfee', 'clearance', 'late_registration'):
348            return _('Not allowed.'), None
349        elif category.startswith('clearance'):
350            if student.state not in (ADMITTED, CLEARANCE, REQUESTED, CLEARED):
351                return _(u'Acceptance Fee payments not allowed.'), None
352            try:
353                certificate = student['studycourse'].certificate
354                p_item = certificate.code
355            except (AttributeError, TypeError):
356                return _('Study course data are incomplete.'), None
357            if student.current_mode in (
358                'ug_ft', 'ug_pt', 'de_ft', 'de_pt',
359                'transfer', 'mug_ft', 'mde_ft') \
360                and category != 'clearance_incl':
361                    return _("Additional fees must be included."), None
362            elif student.current_mode == 'special_pg_ft':
363                if category != 'clearance':
364                    return _("No additional fees required."), None
365            try:
366                acceptancefees = ACCEPTANCEFEES[student.certcode]
367            except KeyError:
368                return _('Acceptance fees not yet fixed.'), None
369            if category == 'clearance_incl':
370                for item in acceptancefees[1]:
371                    try:
372                        amount += int(item)
373                    except:
374                        pass
375            else:
376                amount = float(acceptancefees[0])
377        elif category == 'late_registration':
378            if student.is_postgrad:
379                amount = academic_session.late_pg_registration_fee
380            else:
381                amount = academic_session.late_registration_fee
382        elif category == 'ict':
383            if student.is_fresh:
384                amount = 2200
385            else:
386                amount = 1200
387        elif category.startswith('schoolfee'):
388            try:
389                certificate = student['studycourse'].certificate
390                p_item = certificate.code
391            except (AttributeError, TypeError):
392                return _('Study course data are incomplete.'), None
393            try:
394                if student.entry_session < 2013:
395                    schoolfees = SCHOOLFEES[12][student.certcode]
396                elif student.entry_session < 2014:
397                    schoolfees = SCHOOLFEES[13][student.certcode]
398                elif student.entry_session < 2015:
399                    schoolfees = SCHOOLFEES[14][student.certcode]
400                elif student.entry_session < 2020:
401                    schoolfees = SCHOOLFEES[15][student.certcode]
402                elif student.entry_session < 2021:
403                    schoolfees = SCHOOLFEES[20][student.certcode]
404                elif student.entry_session < 2022:
405                    schoolfees = SCHOOLFEES[21][student.certcode]
406                elif student.entry_session < 2023:
407                    schoolfees = SCHOOLFEES[22][student.certcode]
408                else:
409                    schoolfees = SCHOOLFEES[23][student.certcode]
410            except KeyError:
411                return _('School fees not yet fixed.'), None
412            #if student.is_postgrad and category != 'schoolfee':
413            #    return _("No additional fees required."), None
414            if not previous_session and student.current_mode in (
415                'ug_ft', 'ug_pt', 'de_ft', 'de_pt',
416                'transfer', 'mug_ft', 'mde_ft') \
417                and not category in (
418                'schoolfee_incl', 'schoolfee_1', 'schoolfee_2'):
419                    return _("You must choose a payment which includes "
420                             "additional fees."), None
421            if category in ('schoolfee_1', 'schoolfee_2'):
422                #if student.current_mode == 'ug_pt':
423                #    return _("Part-time students are not allowed "
424                #             "to pay by instalments."), None
425                if student.entry_session < 2015:
426                    return _("You are not allowed "
427                             "to pay by instalments."), None
428            additional = 0.0
429            for item in schoolfees[1]:
430                try:
431                    additional += int(item)
432                except:
433                    # 100_ indicates first year payment only
434                    if student.state == CLEARED:
435                        try:
436                            additional += int(item.split('_')[1])
437                        except:
438                            pass
439            amount = float(schoolfees[0])
440            additional -= amount
441            if previous_session:
442                # Students can pay for previous sessions in all
443                # workflow states.  Fresh students are excluded by the
444                # update method of the PreviousPaymentAddFormPage.
445               # Cut school fee by 50%
446                if category in ('schoolfee_1', 'schoolfee_2') and amount:
447                    amount /= 2
448                pass
449            elif student.state == CLEARED:
450                # Cut school fee by 50%
451                if category in ('schoolfee_1', 'schoolfee_2') and amount:
452                    amount /= 2
453            elif student.state == RETURNING and category != 'schoolfee_2':
454                if not student.father_name:
455                    return _("Personal data form is not properly filled."), None
456                # In case of returning school fee payment the payment session
457                # and level contain the values of the session the student
458                # has paid for.
459                p_session, p_level = self.getReturningData(student)
460                try:
461                    academic_session = grok.getSite()[
462                        'configuration'][str(p_session)]
463                except KeyError:
464                    return _(u'Session configuration object is not available.'), None
465                # Cut school fee by 50%
466                if category == 'schoolfee_1' and amount:
467                    amount /= 2
468            elif category == 'schoolfee_2' and amount:
469                amount /= 2
470            else:
471                return _('Wrong state.'), None
472            if amount in (0.0, None):
473                return _(u'Amount could not be determined.'), None
474            # Add additional fees
475            if category in ('schoolfee_incl', 'schoolfee_1'):
476                amount += additional
477            # Add non-indigenous fee and session specific penalty fees
478            if student.is_postgrad:
479                amount += academic_session.penalty_pg
480                if student.lga and not student.lga.startswith('edo') \
481                    and student.entry_session < 2022:
482                    amount += 20000.0
483            else:
484                amount += academic_session.penalty_ug
485        elif not student.is_postgrad:
486            fee_name = category + '_fee'
487            amount = getattr(academic_session, fee_name, 0.0)
488        if amount in (0.0, None):
489            return _(u'Amount could not be determined.'), None
490        # Create ticket.
491        for key in student['payments'].keys():
492            ticket = student['payments'][key]
493            if ticket.p_state == 'paid' and\
494               ticket.p_category == category and \
495               not ticket.p_category.startswith('transcript') and \
496               ticket.p_item == p_item and \
497               ticket.p_session == p_session:
498                  return _('This type of payment has already been made.'), None
499            # Additional condition in AAUE
500            if category in ('schoolfee', 'schoolfee_incl', 'schoolfee_1'):
501                if ticket.p_state == 'paid' and \
502                   ticket.p_category in ('schoolfee',
503                                         'schoolfee_incl',
504                                         'schoolfee_1') and \
505                   ticket.p_item == p_item and \
506                   ticket.p_session == p_session:
507                      return _(
508                          'Another school fee payment for this '
509                          'session has already been made.'), None
510
511        if self._isPaymentDisabled(p_session, category, student):
512            return _('This category of payments has been disabled.'), None
513        payment = createObject(u'waeup.StudentOnlinePayment')
514        timestamp = ("%d" % int(time()*10000))[1:]
515        payment.p_id = "p%s" % timestamp
516        payment.p_category = category
517        payment.p_item = p_item
518        payment.p_session = p_session
519        payment.p_level = p_level
520        payment.p_current = p_current
521        payment.amount_auth = amount
522        return None, payment
523
524    def _admissionText(self, student, portal_language):
525        inst_name = grok.getSite()['configuration'].name
526        entry_session = student['studycourse'].entry_session
527        entry_session = academic_sessions_vocab.getTerm(entry_session).title
528        text = trans(_(
529            'This is to inform you that you have been offered provisional'
530            ' admission into ${a} for the ${b} academic session as follows:',
531            mapping = {'a': inst_name, 'b': entry_session}),
532            portal_language)
533        return text
534
535    def warnCreditsOOR(self, studylevel, course=None):
536        studycourse = studylevel.__parent__
537        certificate = getattr(studycourse,'certificate', None)
538        current_level = studycourse.current_level
539        if None in (current_level, certificate):
540            return
541        end_level = certificate.end_level
542        if current_level >= end_level:
543            limit = 52
544        else:
545            limit = 48
546        if course and studylevel.total_credits + course.credits > limit:
547            return  _('Maximum credits exceeded.')
548        elif studylevel.total_credits > limit:
549            return _('Maximum credits exceeded.')
550        return
551
552    def getBedCoordinates(self, bedticket):
553        """Return descriptive bed coordinates.
554        This method can be used to customize the `display_coordinates`
555        property method in order to  display a
556        customary description of the bed space.
557        """
558        bc = bedticket.bed_coordinates.split(',')
559        if len(bc) == 4:
560            return bc[0]
561        return bedticket.bed_coordinates
562
563    def getAccommodationDetails(self, student):
564        """Determine the accommodation data of a student.
565        We are usimng the base package method again.
566        """
567        d = {}
568        d['error'] = u''
569        hostels = grok.getSite()['hostels']
570        d['booking_session'] = hostels.accommodation_session
571        d['allowed_states'] = hostels.accommodation_states
572        d['startdate'] = hostels.startdate
573        d['enddate'] = hostels.enddate
574        d['expired'] = hostels.expired
575        # Determine bed type
576        bt = 'all'
577        if student.sex == 'f':
578            sex = 'female'
579        else:
580            sex = 'male'
581        special_handling = 'regular'
582        d['bt'] = u'%s_%s_%s' % (special_handling,sex,bt)
583        return d
584
585    def checkAccommodationRequirements(self, student, acc_details):
586        msg = super(CustomStudentsUtils, self).checkAccommodationRequirements(
587            student, acc_details)
588        if msg:
589            return msg
590        if student.current_mode not in ('ug_ft', 'de_ft', 'mug_ft', 'mde_ft'):
591            return _('You are not eligible to book accommodation.')
592        return
593
594    # AAUE prefix
595    STUDENT_ID_PREFIX = u'E'
596
597    STUDENT_EXPORTER_NAMES = (
598            'students',
599            'studentstudycourses',
600            'studentstudycourses_1',
601            'studentstudylevels',
602            #'studentstudylevels_1',
603            'coursetickets',
604            #'coursetickets_1',
605            'studentpayments',
606            'bedtickets',
607            'unpaidpayments',
608            'sfpaymentsoverview',
609            'studylevelsoverview',
610            'combocard',
611            'bursary',
612            'levelreportdata',
613            'outstandingcourses',
614            'sessionpaymentsoverview',
615            'accommodationpayments',
616            'transcriptdata',
617            'trimmedpayments',
618            'trimmed',
619            'outstandingcourses_2'
620            )
621
622    # Maximum size of upload files in kB
623    MAX_KB = 500
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