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source: main/waeup.aaue/trunk/src/waeup/aaue/students/utils.py @ 15181

Last change on this file since 15181 was 15181, checked in by Henrik Bettermann, 6 years ago
See ticket #513.
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1	## $Id: utils.py 15181 2018-10-02 15:03:19Z 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	##
18	import grok
19	from time import time
20	from zope.component import createObject, queryUtility
21	from zope.catalog.interfaces import ICatalog
22	from waeup.kofa.interfaces import (
23	ADMITTED, CLEARANCE, REQUESTED, CLEARED, RETURNING, PAID,
24	academic_sessions_vocab)
25	from kofacustom.nigeria.students.utils import NigeriaStudentsUtils
26	from waeup.kofa.accesscodes import create_accesscode
27	from waeup.kofa.students.utils import trans
28	from waeup.aaue.interswitch.browser import gateway_net_amt, GATEWAY_AMT
29	from waeup.aaue.interfaces import MessageFactory as _
30
31	MINIMUM_UNITS_THRESHOLD = 15
32
33	class CustomStudentsUtils(NigeriaStudentsUtils):
34	"""A collection of customized methods.
35
36	"""
37
38	PORTRAIT_CHANGE_STATES = (ADMITTED,)
39
40	def GPABoundaries(self, faccode=None, depcode=None,
41	certcode=None, student=None):
42	if student and student.current_mode.startswith('dp'):
43	return ((1.5, 'IRNS / NER / NYV'),
44	(2.4, 'Pass'),
45	(3.5, 'Merit'),
46	(4.5, 'Credit'),
47	(5, 'Distinction'))
48	elif student:
49	return ((1, 'FRNS / NER / NYV'),
50	(1.5, 'Pass'),
51	(2.4, '3rd Class Honours'),
52	(3.5, '2nd Class Honours Lower Division'),
53	(4.5, '2nd Class Honours Upper Division'),
54	(5, '1st Class Honours'))
55	# Session Results Presentations depend on certificate
56	results = None
57	if certcode:
58	cat = queryUtility(ICatalog, name='certificates_catalog')
59	results = list(
60	cat.searchResults(code=(certcode, certcode)))
61	if results and results[0].study_mode.startswith('dp'):
62	return ((1.5, 'IRNS / NER / NYV'),
63	(2.4, 'Pass'),
64	(3.5, 'Merit'),
65	(4.5, 'Credit'),
66	(5, 'Distinction'))
67	else:
68	return ((1, 'FRNS / NER / NYV'),
69	(1.5, 'Pass'),
70	(2.4, '3rd Class Honours'),
71	(3.5, '2nd Class Honours Lower Division'),
72	(4.5, '2nd Class Honours Upper Division'),
73	(5, '1st Class Honours'))
74
75	def getClassFromCGPA(self, gpa, student):
76	gpa_boundaries = self.GPABoundaries(student=student)
77
78	try:
79	certificate = getattr(student['studycourse'],'certificate',None)
80	end_level = getattr(certificate, 'end_level', None)
81	final_level = max([studylevel.level for studylevel in student['studycourse'].values()])
82	if end_level and final_level >= end_level:
83	dummy, repeat = divmod(final_level, 100)
84	if gpa <= 5.1 and repeat == 20:
85	# Irrespective of the CGPA of a student, if the He/She has
86	# 3rd Extension, such student will be graduated with a "Pass".
87	return 1, gpa_boundaries[1][1]
88	except ValueError:
89	pass
90
91	if gpa < gpa_boundaries[0][0]:
92	# FRNS / Fail
93	return 0, gpa_boundaries[0][1]
94	if student.entry_session < 2013 or \
95	student.current_mode.startswith('dp'):
96	if gpa < gpa_boundaries[1][0]:
97	# Pass
98	return 1, gpa_boundaries[1][1]
99	else:
100	if gpa < gpa_boundaries[1][0]:
101	# FRNS
102	# Pass degree has been phased out in 2013 for non-diploma
103	# students
104	return 0, gpa_boundaries[0][1]
105	if gpa < gpa_boundaries[2][0]:
106	# 3rd / Merit
107	return 2, gpa_boundaries[2][1]
108	if gpa < gpa_boundaries[3][0]:
109	# 2nd L / Credit
110	return 3, gpa_boundaries[3][1]
111	if gpa < gpa_boundaries[4][0]:
112	# 2nd U / Distinction
113	return 4, gpa_boundaries[4][1]
114	if gpa <= gpa_boundaries[5][0]:
115	# 1st
116	return 5, gpa_boundaries[5][1]
117	return
118
119	def getDegreeClassNumber(self, level_obj):
120	"""Get degree class number (used for SessionResultsPresentation
121	reports).
122	"""
123	certificate = getattr(level_obj.__parent__,'certificate', None)
124	end_level = getattr(certificate, 'end_level', None)
125	if end_level and level_obj.level >= end_level:
126	if level_obj.level > end_level:
127	# spill-over level
128	if level_obj.gpa_params[1] == 0:
129	# no credits taken
130	return 0
131	elif level_obj.gpa_params[1] < MINIMUM_UNITS_THRESHOLD:
132	# credits taken below limit
133	return 0
134	failed_courses = level_obj.passed_params[4]
135	not_taken_courses = level_obj.passed_params[5]
136	if '_m' in failed_courses:
137	return 0
138	if len(not_taken_courses) \
139	and not not_taken_courses == 'Nil':
140	return 0
141	elif level_obj.gpa_params[1] < MINIMUM_UNITS_THRESHOLD:
142	# credits taken below limit
143	return 0
144	if level_obj.level_verdict in ('FRNS', 'NER', 'NYV'):
145	return 0
146	# use gpa_boundaries above
147	return self.getClassFromCGPA(
148	level_obj.cumulative_params[0], level_obj.student)[0]
149
150	def increaseMatricInteger(self, student):
151	"""Increase counter for matric numbers.
152	This counter can be a centrally stored attribute or an attribute of
153	faculties, departments or certificates. In the base package the counter
154	is as an attribute of the site configuration container.
155	"""
156	if student.current_mode in ('ug_pt', 'de_pt'):
157	grok.getSite()['configuration'].next_matric_integer += 1
158	return
159	elif student.is_postgrad:
160	grok.getSite()['configuration'].next_matric_integer_3 += 1
161	return
162	elif student.current_mode in ('dp_ft',):
163	grok.getSite()['configuration'].next_matric_integer_4 += 1
164	return
165	grok.getSite()['configuration'].next_matric_integer_2 += 1
166	return
167
168	def _concessionalPaymentMade(self, student):
169	if len(student['payments']):
170	for ticket in student['payments'].values():
171	if ticket.p_state == 'paid' and \
172	ticket.p_category == 'concessional':
173	return True
174	return False
175
176	def constructMatricNumber(self, student):
177	faccode = student.faccode
178	depcode = student.depcode
179	certcode = student.certcode
180	degree = getattr(
181	getattr(student.get('studycourse', None), 'certificate', None),
182	'degree', None)
183	year = unicode(student.entry_session)[2:]
184	if not student.state in (PAID, ) or not student.is_fresh or \
185	student.current_mode in ('found', 'ijmbe'):
186	return _('Matriculation number cannot be set.'), None
187	#if student.current_mode not in ('mug_ft', 'mde_ft') and \
188	# not self._concessionalPaymentMade(student):
189	# return _('Matriculation number cannot be set.'), None
190	if student.is_postgrad:
191	next_integer = grok.getSite()['configuration'].next_matric_integer_3
192	if not degree or next_integer == 0:
193	return _('Matriculation number cannot be set.'), None
194	if student.faccode in ('IOE'):
195	return None, "AAU/SPS/%s/%s/%s/%05d" % (
196	faccode, year, degree, next_integer)
197	return None, "AAU/SPS/%s/%s/%s/%s/%05d" % (
198	faccode, depcode, year, degree, next_integer)
199	if student.current_mode in ('ug_pt', 'de_pt'):
200	next_integer = grok.getSite()['configuration'].next_matric_integer
201	if next_integer == 0:
202	return _('Matriculation number cannot be set.'), None
203	return None, "PTP/%s/%s/%s/%05d" % (
204	faccode, depcode, year, next_integer)
205	if student.current_mode in ('dp_ft',):
206	next_integer = grok.getSite()['configuration'].next_matric_integer_4
207	if next_integer == 0:
208	return _('Matriculation number cannot be set.'), None
209	return None, "IOE/DIP/%s/%05d" % (year, next_integer)
210	next_integer = grok.getSite()['configuration'].next_matric_integer_2
211	if next_integer == 0:
212	return _('Matriculation number cannot be set.'), None
213	if student.faccode in ('FBM', 'FCS'):
214	return None, "CMS/%s/%s/%s/%05d" % (
215	faccode, depcode, year, next_integer)
216	return None, "%s/%s/%s/%05d" % (faccode, depcode, year, next_integer)
217
218	def getReturningData(self, student):
219	""" This method defines what happens after school fee payment
220	of returning students depending on the student's senate verdict.
221	"""
222	prev_level = student['studycourse'].current_level
223	cur_verdict = student['studycourse'].current_verdict
224	if cur_verdict in ('A','B','L','M','N','Z',):
225	# Successful student
226	new_level = divmod(int(prev_level),100)[0]*100 + 100
227	elif cur_verdict == 'C':
228	# Student on probation
229	new_level = int(prev_level) + 10
230	else:
231	# Student is somehow in an undefined state.
232	# Level has to be set manually.
233	new_level = prev_level
234	new_session = student['studycourse'].current_session + 1
235	return new_session, new_level
236
237	def _isPaymentDisabled(self, p_session, category, student):
238	academic_session = self._getSessionConfiguration(p_session)
239	if category.startswith('schoolfee'):
240	if 'sf_all' in academic_session.payment_disabled:
241	return True
242	if 'sf_pg' in academic_session.payment_disabled and \
243	student.is_postgrad:
244	return True
245	if 'sf_ug_pt' in academic_session.payment_disabled and \
246	student.current_mode in ('ug_pt', 'de_pt'):
247	return True
248	if 'sf_found' in academic_session.payment_disabled and \
249	student.current_mode == 'found':
250	return True
251	if category.startswith('clearance') and \
252	'cl_regular' in academic_session.payment_disabled and \
253	student.current_mode in ('ug_ft', 'de_ft', 'mug_ft', 'mde_ft'):
254	return True
255	if category == 'hostel_maintenance' and \
256	'maint_all' in academic_session.payment_disabled:
257	return True
258	return False
259
260	def setPaymentDetails(self, category, student,
261	previous_session=None, previous_level=None):
262	"""Create Payment object and set the payment data of a student for
263	the payment category specified.
264
265	"""
266	details = {}
267	p_item = u''
268	amount = 0.0
269	error = u''
270	if previous_session:
271	if previous_session < student['studycourse'].entry_session:
272	return _('The previous session must not fall below '
273	'your entry session.'), None
274	if category == 'schoolfee':
275	# School fee is always paid for the following session
276	if previous_session > student['studycourse'].current_session:
277	return _('This is not a previous session.'), None
278	else:
279	if previous_session > student['studycourse'].current_session - 1:
280	return _('This is not a previous session.'), None
281	p_session = previous_session
282	p_level = previous_level
283	p_current = False
284	else:
285	p_session = student['studycourse'].current_session
286	p_level = student['studycourse'].current_level
287	p_current = True
288	academic_session = self._getSessionConfiguration(p_session)
289	if academic_session == None:
290	return _(u'Session configuration object is not available.'), None
291	# Determine fee.
292	if category == 'transfer':
293	amount = academic_session.transfer_fee
294	elif category == 'transcript_local':
295	amount = academic_session.transcript_fee_local
296	elif category == 'transcript_inter':
297	amount = academic_session.transcript_fee_inter
298	elif category == 'bed_allocation':
299	amount = academic_session.booking_fee
300	elif category == 'restitution':
301	if student.current_session != 2016 \
302	or student.current_mode not in ('ug_ft', 'dp_ft') \
303	or student.is_fresh:
304	return _(u'Restitution fee payment not required.'), None
305	amount = academic_session.restitution_fee
306	elif category == 'hostel_maintenance':
307	amount = 0.0
308	bedticket = student['accommodation'].get(
309	str(student.current_session), None)
310	if bedticket is not None and bedticket.bed is not None:
311	p_item = bedticket.display_coordinates
312	if bedticket.bed.__parent__.maint_fee > 0:
313	amount = bedticket.bed.__parent__.maint_fee
314	else:
315	# fallback
316	amount = academic_session.maint_fee
317	else:
318	return _(u'No bed allocated.'), None
319	elif student.current_mode == 'found' and category not in (
320	'schoolfee', 'clearance', 'late_registration'):
321	return _('Not allowed.'), None
322	elif category.startswith('clearance'):
323	if student.state not in (ADMITTED, CLEARANCE, REQUESTED, CLEARED):
324	return _(u'Acceptance Fee payments not allowed.'), None
325	if student.current_mode in (
326	'ug_ft', 'ug_pt', 'de_ft', 'de_pt',
327	'transfer', 'mug_ft', 'mde_ft') \
328	and category != 'clearance_incl':
329	return _("Additional fees must be included."), None
330	if student.current_mode == 'ijmbe':
331	amount = academic_session.clearance_fee_ijmbe
332	elif student.current_mode == 'dp_ft':
333	amount = academic_session.clearance_fee_dp
334	elif student.faccode == 'FP':
335	amount = academic_session.clearance_fee_fp
336	elif student.current_mode.endswith('_pt'):
337	if student.is_postgrad:
338	amount = academic_session.clearance_fee_pg_pt
339	else:
340	amount = academic_session.clearance_fee_ug_pt
341	elif student.faccode == 'FCS':
342	# Students in clinical medical sciences pay the medical
343	# acceptance fee
344	amount = academic_session.clearance_fee_med
345	elif student.is_postgrad: # and not part-time
346	if category != 'clearance':
347	return _("No additional fees required."), None
348	amount = academic_session.clearance_fee_pg
349	else:
350	amount = academic_session.clearance_fee
351	p_item = student['studycourse'].certificate.code
352	if amount in (0.0, None):
353	return _(u'Amount could not be determined.'), None
354	# Add Matric Gown Fee and Lapel Fee
355	if category == 'clearance_incl':
356	amount += gateway_net_amt(academic_session.matric_gown_fee) + \
357	gateway_net_amt(academic_session.lapel_fee)
358	elif category == 'late_registration':
359	if student.is_postgrad:
360	amount = academic_session.late_pg_registration_fee
361	else:
362	amount = academic_session.late_registration_fee
363	elif category.startswith('schoolfee'):
364	try:
365	certificate = student['studycourse'].certificate
366	p_item = certificate.code
367	except (AttributeError, TypeError):
368	return _('Study course data are incomplete.'), None
369	if student.is_postgrad and category != 'schoolfee':
370	return _("No additional fees required."), None
371	if not previous_session and student.current_mode in (
372	'ug_ft', 'ug_pt', 'de_ft', 'de_pt',
373	'transfer', 'mug_ft', 'mde_ft') \
374	and not category in (
375	'schoolfee_incl', 'schoolfee_1', 'schoolfee_2'):
376	return _("You must choose a payment which includes "
377	"additional fees."), None
378	if category in ('schoolfee_1', 'schoolfee_2'):
379	if student.current_mode == 'ug_pt':
380	return _("Part-time students are not allowed "
381	"to pay by instalments."), None
382	if student.entry_session < 2015:
383	return _("You are not allowed "
384	"to pay by instalments."), None
385	if previous_session:
386	# Students can pay for previous sessions in all
387	# workflow states. Fresh students are excluded by the
388	# update method of the PreviousPaymentAddFormPage.
389	if previous_level == 100:
390	amount = getattr(certificate, 'school_fee_1', 0.0)
391	else:
392	if student.entry_session in (2015, 2016):
393	amount = getattr(certificate, 'school_fee_2', 0.0)
394	else:
395	amount = getattr(certificate, 'school_fee_3', 0.0)
396	elif student.state == CLEARED and category != 'schoolfee_2':
397	amount = getattr(certificate, 'school_fee_1', 0.0)
398	# Cut school fee by 50%
399	if category == 'schoolfee_1' and amount:
400	amount = gateway_net_amt(amount) / 2 + GATEWAY_AMT
401	elif student.is_fresh and category == 'schoolfee_2':
402	amount = getattr(certificate, 'school_fee_1', 0.0)
403	# Cut school fee by 50%
404	if amount:
405	amount = gateway_net_amt(amount) / 2 + GATEWAY_AMT
406	elif student.state == RETURNING and category != 'schoolfee_2':
407	if not student.father_name:
408	return _("Personal data form is not properly filled."), None
409	# In case of returning school fee payment the payment session
410	# and level contain the values of the session the student
411	# has paid for.
412	p_session, p_level = self.getReturningData(student)
413	try:
414	academic_session = grok.getSite()[
415	'configuration'][str(p_session)]
416	except KeyError:
417	return _(u'Session configuration object is not available.'), None
418	if student.entry_session in (2015, 2016):
419	amount = getattr(certificate, 'school_fee_2', 0.0)
420	else:
421	amount = getattr(certificate, 'school_fee_3', 0.0)
422	# Cut school fee by 50%
423	if category == 'schoolfee_1' and amount:
424	amount = gateway_net_amt(amount) / 2 + GATEWAY_AMT
425	elif category == 'schoolfee_2':
426	amount = getattr(certificate, 'school_fee_2', 0.0)
427	# Cut school fee by 50%
428	if amount:
429	amount = gateway_net_amt(amount) / 2 + GATEWAY_AMT
430	else:
431	return _('Wrong state.'), None
432	if amount in (0.0, None):
433	return _(u'Amount could not be determined.'), None
434	# Add Student Union Fee, Student Id Card Fee, Sports Dev. Fee,
435	# Library Dev. Fee and Welfare Assurance
436	if category in ('schoolfee_incl', 'schoolfee_1'):
437	if student.current_mode != 'ijmbe':
438	amount += gateway_net_amt(academic_session.welfare_fee) + \
439	gateway_net_amt(academic_session.union_fee)
440	amount += gateway_net_amt(academic_session.sports_fee)
441	if student.is_postgrad:
442	amount += gateway_net_amt(academic_session.library_fee_pg)
443	else:
444	amount += gateway_net_amt(academic_session.library_fee)
445	if student.entry_session == 2016 \
446	and student.entry_mode == 'ug_ft' \
447	and student.state == CLEARED:
448	amount += gateway_net_amt(academic_session.id_card_fee)
449	# Add non-indigenous fee and session specific penalty fees
450	if student.is_postgrad:
451	amount += academic_session.penalty_pg
452	if student.lga and not student.lga.startswith('edo'):
453	amount += 20000.0
454	else:
455	amount += academic_session.penalty_ug
456	elif not student.is_postgrad:
457	fee_name = category + '_fee'
458	amount = getattr(academic_session, fee_name, 0.0)
459	if amount in (0.0, None):
460	return _(u'Amount could not be determined.'), None
461	# Create ticket.
462	for key in student['payments'].keys():
463	ticket = student['payments'][key]
464	if ticket.p_state == 'paid' and\
465	ticket.p_category == category and \
466	not ticket.p_category.startswith('transcript') and \
467	ticket.p_item == p_item and \
468	ticket.p_session == p_session:
469	return _('This type of payment has already been made.'), None
470	# Additional condition in AAUE
471	if category in ('schoolfee', 'schoolfee_incl', 'schoolfee_1'):
472	if ticket.p_state == 'paid' and \
473	ticket.p_category in ('schoolfee',
474	'schoolfee_incl',
475	'schoolfee_1') and \
476	ticket.p_item == p_item and \
477	ticket.p_session == p_session:
478	return _(
479	'Another school fee payment for this '
480	'session has already been made.'), None
481
482	if self._isPaymentDisabled(p_session, category, student):
483	return _('This category of payments has been disabled.'), None
484	payment = createObject(u'waeup.StudentOnlinePayment')
485	timestamp = ("%d" % int(time()*10000))[1:]
486	payment.p_id = "p%s" % timestamp
487	payment.p_category = category
488	payment.p_item = p_item
489	payment.p_session = p_session
490	payment.p_level = p_level
491	payment.p_current = p_current
492	payment.amount_auth = amount
493	return None, payment
494
495	def _admissionText(self, student, portal_language):
496	inst_name = grok.getSite()['configuration'].name
497	entry_session = student['studycourse'].entry_session
498	entry_session = academic_sessions_vocab.getTerm(entry_session).title
499	text = trans(_(
500	'This is to inform you that you have been offered provisional'
501	' admission into ${a} for the ${b} academic session as follows:',
502	mapping = {'a': inst_name, 'b': entry_session}),
503	portal_language)
504	return text
505
506	def warnCreditsOOR(self, studylevel, course=None):
507	studycourse = studylevel.__parent__
508	certificate = getattr(studycourse,'certificate', None)
509	current_level = studycourse.current_level
510	if None in (current_level, certificate):
511	return
512	end_level = certificate.end_level
513	if current_level >= end_level:
514	limit = 52
515	else:
516	limit = 48
517	if course and studylevel.total_credits + course.credits > limit:
518	return _('Maximum credits exceeded.')
519	elif studylevel.total_credits > limit:
520	return _('Maximum credits exceeded.')
521	return
522
523	def getBedCoordinates(self, bedticket):
524	"""Return descriptive bed coordinates.
525	This method can be used to customize the `display_coordinates`
526	property method in order to display a
527	customary description of the bed space.
528	"""
529	bc = bedticket.bed_coordinates.split(',')
530	if len(bc) == 4:
531	return bc[0]
532	return bedticket.bed_coordinates
533
534	def getAccommodationDetails(self, student):
535	"""Determine the accommodation data of a student.
536	"""
537	d = {}
538	d['error'] = u''
539	hostels = grok.getSite()['hostels']
540	d['booking_session'] = hostels.accommodation_session
541	d['allowed_states'] = hostels.accommodation_states
542	d['startdate'] = hostels.startdate
543	d['enddate'] = hostels.enddate
544	d['expired'] = hostels.expired
545	# Determine bed type
546	bt = 'all'
547	if student.sex == 'f':
548	sex = 'female'
549	else:
550	sex = 'male'
551	special_handling = 'regular'
552	d['bt'] = u'%s_%s_%s' % (special_handling,sex,bt)
553	return d
554
555	def checkAccommodationRequirements(self, student, acc_details):
556	msg = super(CustomStudentsUtils, self).checkAccommodationRequirements(
557	student, acc_details)
558	if msg:
559	return msg
560	if student.current_mode not in ('ug_ft', 'de_ft', 'mug_ft', 'mde_ft'):
561	return _('You are not eligible to book accommodation.')
562	return
563
564	# AAUE prefix
565	STUDENT_ID_PREFIX = u'E'
566
567	STUDENT_EXPORTER_NAMES = ('students', 'studentstudycourses',
568	'studentstudylevels', 'coursetickets',
569	'studentpayments', 'studentunpaidpayments',
570	'bedtickets', 'sfpaymentsoverview',
571	'studylevelsoverview', 'combocard', 'bursary',
572	'levelreportdata')

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