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source: main/waeup.kofa/trunk/src/waeup/kofa/students/utils.py @ 17182

Last change on this file since 17182 was 17182, checked in by Henrik Bettermann, 22 months ago
p_session of bed allocation and maintenance fees is always the portal’s accommodation session and not the student’s current session.
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1	## $Id: utils.py 17182 2022-11-30 14:09:18Z 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	"""General helper functions and utilities for the students section.
19	"""
20	import grok
21	import textwrap
22	from copy import deepcopy
23	from cgi import escape
24	from time import time
25	from cStringIO import StringIO
26	from PyPDF2 import PdfFileMerger, PdfFileReader, PdfFileWriter
27	from reportlab.lib import colors
28	from reportlab.lib.units import cm
29	from reportlab.lib.pagesizes import A4
30	from reportlab.lib.styles import getSampleStyleSheet
31	from reportlab.platypus import Paragraph, Image, Table, Spacer
32	from reportlab.platypus.doctemplate import LayoutError
33	from reportlab.platypus.flowables import PageBreak
34	from zope.event import notify
35	from zope.schema.interfaces import ConstraintNotSatisfied
36	from zope.component import getUtility, createObject, queryUtility
37	from zope.catalog.interfaces import ICatalog
38	from zope.formlib.form import setUpEditWidgets
39	from zope.i18n import translate
40	from waeup.kofa.interfaces import (
41	IExtFileStore, IKofaUtils, RETURNING, PAID, CLEARED, GRADUATED,
42	academic_sessions_vocab, IFileStoreNameChooser)
43	from waeup.kofa.interfaces import MessageFactory as _
44	from waeup.kofa.students.interfaces import IStudentsUtils
45	from waeup.kofa.students.workflow import ADMITTED
46	from waeup.kofa.students.vocabularies import StudyLevelSource, MatNumNotInSource
47	from waeup.kofa.browser.pdf import (
48	ENTRY1_STYLE, format_html, NOTE_STYLE, HEADING_STYLE,
49	get_signature_tables, get_qrcode)
50	from waeup.kofa.browser.interfaces import IPDFCreator
51	from waeup.kofa.utils.helpers import to_timezone
52
53	SLIP_STYLE = [
54	('VALIGN',(0,0),(-1,-1),'TOP'),
55	#('FONT', (0,0), (-1,-1), 'Helvetica', 11),
56	]
57
58	CONTENT_STYLE = [
59	('VALIGN',(0,0),(-1,-1),'TOP'),
60	#('FONT', (0,0), (-1,-1), 'Helvetica', 8),
61	#('TEXTCOLOR',(0,0),(-1,0),colors.white),
62	#('BACKGROUND',(0,0),(-1,0),colors.black),
63	('INNERGRID', (0,0), (-1,-1), 0.25, colors.black),
64	('BOX', (0,0), (-1,-1), 1, colors.black),
65	]
66
67	FONT_SIZE = 10
68	FONT_COLOR = 'black'
69
70	def trans(text, lang):
71	# shortcut
72	return translate(text, 'waeup.kofa', target_language=lang)
73
74	def formatted_text(text, color=FONT_COLOR, lang='en'):
75	"""Turn `text`, `color` and `size` into an HTML snippet.
76
77	The snippet is suitable for use with reportlab and generating PDFs.
78	Wraps the `text` into a ``<font>`` tag with passed attributes.
79
80	Also non-strings are converted. Raw strings are expected to be
81	utf-8 encoded (usually the case for widgets etc.).
82
83	Finally, a br tag is added if widgets contain div tags
84	which are not supported by reportlab.
85
86	The returned snippet is unicode type.
87	"""
88	if not isinstance(text, unicode):
89	if isinstance(text, basestring):
90	text = text.decode('utf-8')
91	else:
92	text = unicode(text)
93	if text == 'None':
94	text = ''
95	# Very long matriculation numbers need to be wrapped
96	if text.find(' ') == -1 and len(text.split('/')) > 6:
97	text = '/'.join(text.split('/')[:5]) + \
98	'/ ' + '/'.join(text.split('/')[5:])
99	# Mainly for boolean values we need our customized
100	# localisation of the zope domain
101	text = translate(text, 'zope', target_language=lang)
102	text = text.replace('</div>', '<br /></div>')
103	tag1 = u'<font color="%s">' % (color)
104	return tag1 + u'%s</font>' % text
105
106	def generate_student_id():
107	students = grok.getSite()['students']
108	new_id = students.unique_student_id
109	return new_id
110
111	def set_up_widgets(view, ignore_request=False):
112	view.adapters = {}
113	view.widgets = setUpEditWidgets(
114	view.form_fields, view.prefix, view.context, view.request,
115	adapters=view.adapters, for_display=True,
116	ignore_request=ignore_request
117	)
118
119	def render_student_data(studentview, context, omit_fields=(),
120	lang='en', slipname=None, no_passport=False):
121	"""Render student table for an existing frame.
122	"""
123	width, height = A4
124	set_up_widgets(studentview, ignore_request=True)
125	data_left = []
126	data_middle = []
127	style = getSampleStyleSheet()
128	img = getUtility(IExtFileStore).getFileByContext(
129	studentview.context, attr='passport.jpg')
130	if img is None:
131	from waeup.kofa.browser import DEFAULT_PASSPORT_IMAGE_PATH
132	img = open(DEFAULT_PASSPORT_IMAGE_PATH, 'rb')
133	doc_img = Image(img.name, width=4cm, height=4cm, kind='bound')
134	data_left.append([doc_img])
135	# Uniben wants a second picture. We add this picture here.
136	img2 = getUtility(IExtFileStore).getFileByContext(
137	studentview.context, attr='passport2.jpg')
138	if img2 is not None:
139	doc_img2 = Image(img2.name, width=4cm, height=4cm, kind='bound')
140	data_left.append([doc_img2])
141	#data.append([Spacer(1, 12)])
142
143	f_label = trans(_('Name:'), lang)
144	f_label = Paragraph(f_label, ENTRY1_STYLE)
145	f_text = formatted_text(studentview.context.display_fullname)
146	f_text = Paragraph(f_text, ENTRY1_STYLE)
147	data_middle.append([f_label,f_text])
148
149	for widget in studentview.widgets:
150	if 'name' in widget.name:
151	continue
152	f_label = translate(
153	widget.label.strip(), 'waeup.kofa',
154	target_language=lang)
155	f_label = Paragraph('%s:' % f_label, ENTRY1_STYLE)
156	f_text = formatted_text(widget(), lang=lang)
157	f_text = Paragraph(f_text, ENTRY1_STYLE)
158	data_middle.append([f_label,f_text])
159	if not 'date_of_birth' in omit_fields:
160	f_label = trans(_('Date of Birth:'), lang)
161	f_label = Paragraph(f_label, ENTRY1_STYLE)
162	date_of_birth = studentview.context.date_of_birth
163	tz = getUtility(IKofaUtils).tzinfo
164	date_of_birth = to_timezone(date_of_birth, tz)
165	if date_of_birth is not None:
166	date_of_birth = date_of_birth.strftime("%d/%m/%Y")
167	f_text = formatted_text(date_of_birth)
168	f_text = Paragraph(f_text, ENTRY1_STYLE)
169	data_middle.append([f_label,f_text])
170	if getattr(studentview.context, 'certcode', None):
171	if not 'certificate' in omit_fields:
172	f_label = trans(_('Study Course:'), lang)
173	f_label = Paragraph(f_label, ENTRY1_STYLE)
174	f_text = formatted_text(
175	studentview.context['studycourse'].certificate.longtitle)
176	f_text = Paragraph(f_text, ENTRY1_STYLE)
177	data_middle.append([f_label,f_text])
178	if not 'department' in omit_fields:
179	f_label = trans(_('Department:'), lang)
180	f_label = Paragraph(f_label, ENTRY1_STYLE)
181	f_text = formatted_text(
182	studentview.context[
183	'studycourse'].certificate.__parent__.__parent__.longtitle,
184	)
185	f_text = Paragraph(f_text, ENTRY1_STYLE)
186	data_middle.append([f_label,f_text])
187	if not 'faculty' in omit_fields:
188	f_label = trans(_('Faculty:'), lang)
189	f_label = Paragraph(f_label, ENTRY1_STYLE)
190	f_text = formatted_text(
191	studentview.context[
192	'studycourse'].certificate.__parent__.__parent__.__parent__.longtitle,
193	)
194	f_text = Paragraph(f_text, ENTRY1_STYLE)
195	data_middle.append([f_label,f_text])
196	if not 'current_mode' in omit_fields:
197	studymodes_dict = getUtility(IKofaUtils).STUDY_MODES_DICT
198	sm = studymodes_dict[studentview.context.current_mode]
199	f_label = trans(_('Study Mode:'), lang)
200	f_label = Paragraph(f_label, ENTRY1_STYLE)
201	f_text = formatted_text(sm)
202	f_text = Paragraph(f_text, ENTRY1_STYLE)
203	data_middle.append([f_label,f_text])
204	if not 'entry_session' in omit_fields:
205	f_label = trans(_('Entry Session:'), lang)
206	f_label = Paragraph(f_label, ENTRY1_STYLE)
207	entry_session = studentview.context.entry_session
208	try:
209	entry_session = academic_sessions_vocab.getTerm(
210	entry_session).title
211	except LookupError:
212	entry_session = _('void')
213	f_text = formatted_text(entry_session)
214	f_text = Paragraph(f_text, ENTRY1_STYLE)
215	data_middle.append([f_label,f_text])
216	# Requested by Uniben, does not really make sense
217	if not 'current_level' in omit_fields:
218	f_label = trans(_('Current Level:'), lang)
219	f_label = Paragraph(f_label, ENTRY1_STYLE)
220	current_level = studentview.context['studycourse'].current_level
221	studylevelsource = StudyLevelSource().factory
222	current_level = studylevelsource.getTitle(
223	studentview.context, current_level)
224	f_text = formatted_text(current_level)
225	f_text = Paragraph(f_text, ENTRY1_STYLE)
226	data_middle.append([f_label,f_text])
227
228	if no_passport:
229	table = Table(data_middle,style=SLIP_STYLE)
230	table.hAlign = 'LEFT'
231	return table
232
233	# append QR code to the right
234	if slipname:
235	url = studentview.url(context, slipname)
236	data_right = [[get_qrcode(url, width=70.0)]]
237	table_right = Table(data_right,style=SLIP_STYLE)
238	else:
239	table_right = None
240
241	table_left = Table(data_left,style=SLIP_STYLE)
242	table_middle = Table(data_middle,style=SLIP_STYLE, colWidths=[5cm, 5cm])
243	table = Table([[table_left, table_middle, table_right],],style=SLIP_STYLE)
244	return table
245
246	def render_table_data(tableheader, tabledata, lang='en'):
247	"""Render children table for an existing frame.
248	"""
249	data = []
250	#data.append([Spacer(1, 12)])
251	line = []
252	style = getSampleStyleSheet()
253	for element in tableheader:
254	field = '<strong>%s</strong>' % formatted_text(element[0], lang=lang)
255	field = Paragraph(field, style["Normal"])
256	line.append(field)
257	data.append(line)
258	for ticket in tabledata:
259	line = []
260	for element in tableheader:
261	field = formatted_text(getattr(ticket,element[1],u' '))
262	field = Paragraph(field, style["Normal"])
263	line.append(field)
264	data.append(line)
265	table = Table(data,colWidths=[
266	element[2]*cm for element in tableheader], style=CONTENT_STYLE)
267	return table
268
269	def render_transcript_data(view, tableheader, levels_data, lang='en'):
270	"""Render children table for an existing frame.
271	"""
272	data = []
273	style = getSampleStyleSheet()
274	format_float = getUtility(IKofaUtils).format_float
275	for level in levels_data:
276	level_obj = level['level']
277	tickets = level['tickets_1'] + level['tickets_2'] + level['tickets_3']
278	if not tickets:
279	continue
280	headerline = []
281	tabledata = []
282	if 'evel' in view.level_dict.get('ticket.level', str(level_obj.level)):
283	subheader = '%s %s, %s' % (
284	trans(_('Session'), lang),
285	view.session_dict[level_obj.level_session],
286	view.level_dict.get('ticket.level', str(level_obj.level)))
287	else:
288	subheader = '%s %s, %s %s' % (
289	trans(_('Session'), lang),
290	view.session_dict[level_obj.level_session],
291	trans(_('Level'), lang),
292	view.level_dict.get(level_obj.level, str(level_obj.level)))
293	data.append(Paragraph(subheader, HEADING_STYLE))
294	for element in tableheader:
295	field = '<strong>%s</strong>' % formatted_text(element[0])
296	field = Paragraph(field, style["Normal"])
297	headerline.append(field)
298	tabledata.append(headerline)
299	for ticket in tickets:
300	ticketline = []
301	for element in tableheader:
302	field = formatted_text(getattr(ticket,element[1],u' '))
303	field = Paragraph(field, style["Normal"])
304	ticketline.append(field)
305	tabledata.append(ticketline)
306	table = Table(tabledata,colWidths=[
307	element[2]*cm for element in tableheader], style=CONTENT_STYLE)
308	data.append(table)
309	sgpa = format_float(level['sgpa'], 2)
310	sgpa = '%s: %s' % (trans('Sessional GPA (rectified)', lang), sgpa)
311	#sgpa = '%s: %.2f' % (trans('Sessional GPA (rectified)', lang), level['sgpa'])
312	data.append(Paragraph(sgpa, style["Normal"]))
313	if getattr(level_obj, 'transcript_remark', None):
314	remark = '%s: %s' % (
315	trans('Transcript Remark', lang),
316	getattr(level_obj, 'transcript_remark'))
317	data.append(Paragraph(remark, style["Normal"]))
318	return data
319
320	def docs_as_flowables(view, lang='en'):
321	"""Create reportlab flowables out of scanned docs.
322	"""
323	# XXX: fix circular import problem
324	from waeup.kofa.browser.fileviewlets import FileManager
325	from waeup.kofa.browser import DEFAULT_IMAGE_PATH
326	style = getSampleStyleSheet()
327	data = []
328
329	# Collect viewlets
330	fm = FileManager(view.context, view.request, view)
331	fm.update()
332	if fm.viewlets:
333	sc_translation = trans(_('Scanned Documents'), lang)
334	data.append(Paragraph(sc_translation, HEADING_STYLE))
335	# Insert list of scanned documents
336	table_data = []
337	for viewlet in fm.viewlets:
338	if viewlet.file_exists:
339	# Show viewlet only if file exists
340	f_label = Paragraph(trans(viewlet.label, lang), ENTRY1_STYLE)
341	img_path = getattr(getUtility(IExtFileStore).getFileByContext(
342	view.context, attr=viewlet.download_name), 'name', None)
343	#f_text = Paragraph(trans(_('(not provided)'),lang), ENTRY1_STYLE)
344	if img_path is None:
345	pass
346	elif not img_path[-4:] in ('.jpg', '.JPG'):
347	# reportlab requires jpg images, I think.
348	f_text = Paragraph('%s (not displayable)' % (
349	viewlet.title,), ENTRY1_STYLE)
350	else:
351	f_text = Image(img_path, width=2cm, height=1cm, kind='bound')
352	table_data.append([f_label, f_text])
353	if table_data:
354	# safety belt; empty tables lead to problems.
355	data.append(Table(table_data, style=SLIP_STYLE))
356	return data
357
358	class StudentsUtils(grok.GlobalUtility):
359	"""A collection of methods subject to customization.
360	"""
361	grok.implements(IStudentsUtils)
362
363	def getReturningData(self, student):
364	""" Define what happens after school fee payment
365	depending on the student's senate verdict.
366	In the base configuration current level is always increased
367	by 100 no matter which verdict has been assigned.
368	"""
369	new_level = student['studycourse'].current_level + 100
370	new_session = student['studycourse'].current_session + 1
371	return new_session, new_level
372
373	def setReturningData(self, student):
374	""" Define what happens after school fee payment
375	depending on the student's senate verdict.
376	This method follows the same algorithm as `getReturningData` but
377	it also sets the new values.
378	"""
379	new_session, new_level = self.getReturningData(student)
380	try:
381	student['studycourse'].current_level = new_level
382	except ConstraintNotSatisfied:
383	# Do not change level if level exceeds the
384	# certificate's end_level.
385	pass
386	student['studycourse'].current_session = new_session
387	verdict = student['studycourse'].current_verdict
388	student['studycourse'].current_verdict = '0'
389	student['studycourse'].previous_verdict = verdict
390	return
391
392	def _getSessionConfiguration(self, session):
393	try:
394	return grok.getSite()['configuration'][str(session)]
395	except KeyError:
396	return None
397
398	def _isPaymentDisabled(self, p_session, category, student):
399	academic_session = self._getSessionConfiguration(p_session)
400	if category == 'schoolfee' and \
401	'sf_all' in academic_session.payment_disabled:
402	return True
403	return False
404
405	def samePaymentMade(self, student, category, p_item, p_session):
406	for key in student['payments'].keys():
407	ticket = student['payments'][key]
408	if ticket.p_state == 'paid' and\
409	ticket.p_category == category and \
410	ticket.p_item != 'Balance' and \
411	ticket.p_item == p_item and \
412	ticket.p_session == p_session:
413	return True
414	return False
415
416	def setPaymentDetails(self, category, student,
417	previous_session=None, previous_level=None, combi=[]):
418	"""Create a payment ticket and set the payment data of a
419	student for the payment category specified.
420	"""
421	p_item = u''
422	amount = 0.0
423	if previous_session:
424	if previous_session < student['studycourse'].entry_session:
425	return _('The previous session must not fall below '
426	'your entry session.'), None
427	if category == 'schoolfee':
428	# School fee is always paid for the following session
429	if previous_session > student['studycourse'].current_session:
430	return _('This is not a previous session.'), None
431	else:
432	if previous_session > student['studycourse'].current_session - 1:
433	return _('This is not a previous session.'), None
434	p_session = previous_session
435	p_level = previous_level
436	p_current = False
437	else:
438	p_session = student['studycourse'].current_session
439	p_level = student['studycourse'].current_level
440	p_current = True
441	academic_session = self._getSessionConfiguration(p_session)
442	if academic_session == None:
443	return _(u'Session configuration object is not available.'), None
444	# Determine fee.
445	if category == 'schoolfee':
446	try:
447	certificate = student['studycourse'].certificate
448	p_item = certificate.code
449	except (AttributeError, TypeError):
450	return _('Study course data are incomplete.'), None
451	if previous_session:
452	# Students can pay for previous sessions in all
453	# workflow states. Fresh students are excluded by the
454	# update method of the PreviousPaymentAddFormPage.
455	if previous_level == 100:
456	amount = getattr(certificate, 'school_fee_1', 0.0)
457	else:
458	amount = getattr(certificate, 'school_fee_2', 0.0)
459	else:
460	if student.state == CLEARED:
461	amount = getattr(certificate, 'school_fee_1', 0.0)
462	elif student.state == RETURNING:
463	# In case of returning school fee payment the
464	# payment session and level contain the values of
465	# the session the student has paid for. Payment
466	# session is always next session.
467	p_session, p_level = self.getReturningData(student)
468	academic_session = self._getSessionConfiguration(p_session)
469	if academic_session == None:
470	return _(
471	u'Session configuration object is not available.'
472	), None
473	amount = getattr(certificate, 'school_fee_2', 0.0)
474	elif student.is_postgrad and student.state == PAID:
475	# Returning postgraduate students also pay for the
476	# next session but their level always remains the
477	# same.
478	p_session += 1
479	academic_session = self._getSessionConfiguration(p_session)
480	if academic_session == None:
481	return _(
482	u'Session configuration object is not available.'
483	), None
484	amount = getattr(certificate, 'school_fee_2', 0.0)
485	elif category == 'clearance':
486	try:
487	p_item = student['studycourse'].certificate.code
488	except (AttributeError, TypeError):
489	return _('Study course data are incomplete.'), None
490	amount = academic_session.clearance_fee
491	elif category == 'bed_allocation':
492	acco_details = self.getAccommodationDetails(student)
493	p_session = acco_details['booking_session']
494	p_item = acco_details['bt']
495	amount = academic_session.booking_fee
496	elif category == 'hostel_maintenance':
497	amount = 0.0
498	booking_session = grok.getSite()['hostels'].accommodation_session
499	bedticket = student['accommodation'].get(str(booking_session), None)
500	if bedticket is not None and bedticket.bed is not None:
501	p_session = booking_session
502	p_item = bedticket.bed_coordinates
503	if bedticket.bed.__parent__.maint_fee > 0:
504	amount = bedticket.bed.__parent__.maint_fee
505	else:
506	# fallback
507	amount = academic_session.maint_fee
508	else:
509	return _(u'No bed allocated.'), None
510	elif category == 'combi' and combi:
511	categories = getUtility(IKofaUtils).COMBI_PAYMENT_CATEGORIES
512	for cat in combi:
513	fee_name = cat + '_fee'
514	cat_amount = getattr(academic_session, fee_name, 0.0)
515	if not cat_amount:
516	return _('%s undefined.' % categories[cat]), None
517	amount += cat_amount
518	p_item += u'%s + ' % categories[cat]
519	p_item = p_item.strip(' + ')
520	else:
521	fee_name = category + '_fee'
522	amount = getattr(academic_session, fee_name, 0.0)
523	if amount in (0.0, None):
524	return _('Amount could not be determined.'), None
525	if self.samePaymentMade(student, category, p_item, p_session):
526	return _('This type of payment has already been made.'), None
527	if self._isPaymentDisabled(p_session, category, student):
528	return _('This category of payments has been disabled.'), None
529	payment = createObject(u'waeup.StudentOnlinePayment')
530	timestamp = ("%d" % int(time()*10000))[1:]
531	payment.p_id = "p%s" % timestamp
532	payment.p_category = category
533	payment.p_item = p_item
534	payment.p_session = p_session
535	payment.p_level = p_level
536	payment.p_current = p_current
537	payment.amount_auth = amount
538	payment.p_combi = combi
539	return None, payment
540
541	def setBalanceDetails(self, category, student,
542	balance_session, balance_level, balance_amount):
543	"""Create a balance payment ticket and set the payment data
544	as selected by the student.
545	"""
546	p_item = u'Balance'
547	p_session = balance_session
548	p_level = balance_level
549	p_current = False
550	amount = balance_amount
551	academic_session = self._getSessionConfiguration(p_session)
552	if academic_session == None:
553	return _(u'Session configuration object is not available.'), None
554	if amount in (0.0, None) or amount < 0:
555	return _('Amount must be greater than 0.'), None
556	payment = createObject(u'waeup.StudentOnlinePayment')
557	timestamp = ("%d" % int(time()*10000))[1:]
558	payment.p_id = "p%s" % timestamp
559	payment.p_category = category
560	payment.p_item = p_item
561	payment.p_session = p_session
562	payment.p_level = p_level
563	payment.p_current = p_current
564	payment.amount_auth = amount
565	return None, payment
566
567	def increaseMatricInteger(self, student):
568	"""Increase counter for matric numbers.
569	This counter can be a centrally stored attribute or an attribute of
570	faculties, departments or certificates. In the base package the counter
571	is as an attribute of the site configuration container.
572	"""
573	grok.getSite()['configuration'].next_matric_integer += 1
574	return
575
576	def constructMatricNumber(self, student):
577	"""Fetch the matric number counter which fits the student and
578	construct the new matric number of the student.
579	In the base package the counter is returned which is as an attribute
580	of the site configuration container.
581	"""
582	next_integer = grok.getSite()['configuration'].next_matric_integer
583	if next_integer == 0:
584	return _('Matriculation number cannot be set.'), None
585	return None, unicode(next_integer)
586
587	def setMatricNumber(self, student):
588	"""Set matriculation number of student. If the student's matric number
589	is unset a new matric number is
590	constructed according to the matriculation number construction rules
591	defined in the `constructMatricNumber` method. The new matric number is
592	set, the students catalog updated. The corresponding matric number
593	counter is increased by one.
594
595	This method is tested but not used in the base package. It can
596	be used in custom packages by adding respective views
597	and by customizing `increaseMatricInteger` and `constructMatricNumber`
598	according to the university's matriculation number construction rules.
599
600	The method can be disabled by setting the counter to zero.
601	"""
602	if student.matric_number is not None:
603	return _('Matriculation number already set.'), None
604	if student.certcode is None:
605	return _('No certificate assigned.'), None
606	error, matric_number = self.constructMatricNumber(student)
607	if error:
608	return error, None
609	try:
610	student.matric_number = matric_number
611	except MatNumNotInSource:
612	return _('Matriculation number %s exists.' % matric_number), None
613	notify(grok.ObjectModifiedEvent(student))
614	self.increaseMatricInteger(student)
615	return None, matric_number
616
617	def allowPortraitChange(self, student):
618	"""Check if student is allowed to change the portrait file.
619	"""
620	if student.state not in self.PORTRAIT_CHANGE_STATES:
621	return False
622	return True
623
624	def getAccommodationDetails(self, student):
625	"""Determine the accommodation data of a student.
626	"""
627	d = {}
628	d['error'] = u''
629	hostels = grok.getSite()['hostels']
630	d['booking_session'] = hostels.accommodation_session
631	d['allowed_states'] = hostels.accommodation_states
632	d['startdate'] = hostels.startdate
633	d['enddate'] = hostels.enddate
634	d['expired'] = hostels.expired
635	# Determine bed type
636	studycourse = student['studycourse']
637	certificate = getattr(studycourse,'certificate',None)
638	entry_session = studycourse.entry_session
639	current_level = studycourse.current_level
640	if None in (entry_session, current_level, certificate):
641	return d
642	end_level = certificate.end_level
643	if current_level == 10:
644	bt = 'pr'
645	elif entry_session == grok.getSite()['hostels'].accommodation_session:
646	bt = 'fr'
647	elif current_level >= end_level:
648	bt = 'fi'
649	else:
650	bt = 're'
651	if student.sex == 'f':
652	sex = 'female'
653	else:
654	sex = 'male'
655	special_handling = 'regular'
656	d['bt'] = u'%s_%s_%s' % (special_handling,sex,bt)
657	return d
658
659	ACCOMMODATION_SPAN = 0
660
661	def checkAccommodationRequirements(self, student, acc_details):
662	if acc_details.get('expired', False):
663	startdate = acc_details.get('startdate')
664	enddate = acc_details.get('enddate')
665	if startdate and enddate:
666	tz = getUtility(IKofaUtils).tzinfo
667	startdate = to_timezone(
668	startdate, tz).strftime("%d/%m/%Y %H:%M:%S")
669	enddate = to_timezone(
670	enddate, tz).strftime("%d/%m/%Y %H:%M:%S")
671	return _("Outside booking period: ${a} - ${b}",
672	mapping = {'a': startdate, 'b': enddate})
673	else:
674	return _("Outside booking period.")
675	if not acc_details.get('bt'):
676	return _("Your data are incomplete.")
677	if not student.state in acc_details['allowed_states']:
678	return _("You are in the wrong registration state.")
679	if acc_details['booking_session'] - student[
680	'studycourse'].current_session > self.ACCOMMODATION_SPAN:
681	return _('Your current session does not allow ' + \
682	'to book accommodation.')
683	bsession = str(acc_details['booking_session'])
684	if bsession in student['accommodation'].keys() \
685	and not 'booking expired' in \
686	student['accommodation'][bsession].bed_coordinates:
687	return _('You already booked a bed space in '
688	'current accommodation session.')
689	return
690
691	def selectBed(self, available_beds):
692	"""Select a bed from a filtered list of available beds.
693	In the base configuration beds are sorted by the sort id
694	of the hostel and the bed number. The first bed found in
695	this sorted list is taken.
696	"""
697	sorted_beds = sorted(available_beds,
698	key=lambda bed: 1000 * bed.__parent__.sort_id + bed.bed_number)
699	return sorted_beds[0]
700
701	def GPABoundaries(self, faccode=None, depcode=None, certcode=None):
702	return ((1, 'Fail'),
703	(1.5, 'Pass'),
704	(2.4, '3rd Class'),
705	(3.5, '2nd Class Lower'),
706	(4.5, '2nd Class Upper'),
707	(5, '1st Class'))
708
709	def getClassFromCGPA(self, gpa, student):
710	"""Determine the class of degree. In some custom packages
711	this class depends on e.g. the entry session of the student. In the
712	base package, it does not.
713	"""
714	if gpa < self.GPABoundaries()[0][0]:
715	return 0, self.GPABoundaries()[0][1]
716	if gpa < self.GPABoundaries()[1][0]:
717	return 1, self.GPABoundaries()[1][1]
718	if gpa < self.GPABoundaries()[2][0]:
719	return 2, self.GPABoundaries()[2][1]
720	if gpa < self.GPABoundaries()[3][0]:
721	return 3, self.GPABoundaries()[3][1]
722	if gpa < self.GPABoundaries()[4][0]:
723	return 4, self.GPABoundaries()[4][1]
724	if gpa <= self.GPABoundaries()[5][0]:
725	return 5, self.GPABoundaries()[5][1]
726	return
727
728	def getDegreeClassNumber(self, level_obj):
729	"""Get degree class number (used for SessionResultsPresentation
730	reports).
731	"""
732	if level_obj.gpa_params[1] == 0:
733	# No credits weighted
734	return 6
735	return self.getClassFromCGPA(
736	level_obj.cumulative_params[0], level_obj.student)[0]
737
738	def _saveTranscriptPDF(self, student, transcript):
739	"""Create a transcript PDF file and store it in student folder.
740	"""
741	file_store = getUtility(IExtFileStore)
742	file_id = IFileStoreNameChooser(student).chooseName(
743	attr="final_transcript.pdf")
744	file_store.createFile(file_id, StringIO(transcript))
745	return
746
747	def warnCreditsOOR(self, studylevel, course=None):
748	"""Return message if credits are out of range. In the base
749	package only maximum credits is set.
750	"""
751	if course and studylevel.total_credits + course.credits > 50:
752	return _('Maximum credits exceeded.')
753	elif studylevel.total_credits > 50:
754	return _('Maximum credits exceeded.')
755	return
756
757	def warnCourseAlreadyPassed(self, studylevel, course):
758	"""Return message if course has already been passed at
759	previous levels.
760	"""
761	for slevel in studylevel.__parent__.values():
762	for cticket in slevel.values():
763	if cticket.code == course.code \
764	and cticket.total_score >= cticket.passmark:
765	return _('Course has already been passed at previous level.')
766	return False
767
768	def getBedCoordinates(self, bedticket):
769	"""Return descriptive bed coordinates.
770	This method can be used to customize the `display_coordinates`
771	property method in order to display a
772	customary description of the bed space.
773	"""
774	return bedticket.bed_coordinates
775
776	def clearance_disabled_message(self, student):
777	"""Render message if clearance is disabled.
778	"""
779	try:
780	session_config = grok.getSite()[
781	'configuration'][str(student.current_session)]
782	except KeyError:
783	return _('Session configuration object is not available.')
784	if not session_config.clearance_enabled:
785	return _('Clearance is disabled for this session.')
786	return None
787
788	def getPDFCreator(self, context):
789	"""Get a pdf creator suitable for `context`.
790	The default implementation always returns the default creator.
791	"""
792	return getUtility(IPDFCreator)
793
794	def _mergeFiles(self, mergefiles, watermark, pdf_stream):
795	merger = PdfFileMerger()
796	merger.append(StringIO(pdf_stream))
797	for file in mergefiles:
798	if watermark:
799	# Pass through all pages of each file
800	# and merge with watermark page. Paint
801	# watermark first to make it transparent.
802	marked_file = PdfFileWriter()
803	orig_file = PdfFileReader(file)
804	num_pages = orig_file.getNumPages()
805	for num in range(num_pages):
806	watermark_file = PdfFileReader(watermark)
807	page = watermark_file.getPage(0)
808	page.mergePage(orig_file.getPage(num))
809	marked_file.addPage(page)
810	# Save into a file-like object
811	tmp1 = StringIO()
812	marked_file.write(tmp1)
813	# Append the file-like object
814	merger.append(tmp1)
815	else:
816	# Just append the file object
817	merger.append(file)
818	# Save into a file-like object
819	tmp2 = StringIO()
820	merger.write(tmp2)
821	return tmp2.getvalue()
822
823	def renderPDF(self, view, filename='slip.pdf', student=None,
824	studentview=None,
825	tableheader=[], tabledata=[],
826	note=None, signatures=None, sigs_in_footer=(),
827	show_scans=True, topMargin=1.5,
828	omit_fields=(),
829	mergefiles=None, watermark=None,
830	pagebreak=False):
831	"""Render pdf slips for various pages (also some pages
832	in the applicants module).
833	"""
834	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
835	# XXX: tell what the different parameters mean
836	style = getSampleStyleSheet()
837	creator = self.getPDFCreator(student)
838	data = []
839	doc_title = view.label
840	author = '%s (%s)' % (view.request.principal.title,
841	view.request.principal.id)
842	footer_text = view.label.split('\n')
843	if len(footer_text) > 2:
844	# We can add a department in first line, second line is used
845	footer_text = footer_text[1]
846	else:
847	# Only the first line is used for the footer
848	footer_text = footer_text[0]
849	if getattr(student, 'student_id', None) is not None:
850	footer_text = "%s - %s - " % (student.student_id, footer_text)
851
852	# Insert student data table
853	if student is not None:
854	if view.form_fields:
855	bd_translation = trans(_('Base Data'), portal_language)
856	data.append(Paragraph(bd_translation, HEADING_STYLE))
857	data.append(render_student_data(
858	studentview, view.context, omit_fields, lang=portal_language,
859	slipname=filename))
860
861	# Insert widgets
862	if view.form_fields:
863	data.append(Paragraph(view.title, HEADING_STYLE))
864	separators = getattr(self, 'SEPARATORS_DICT', {})
865	table = creator.getWidgetsTable(
866	view.form_fields, view.context, None, lang=portal_language,
867	separators=separators)
868	data.append(table)
869
870	# Insert scanned docs
871	if show_scans:
872	data.extend(docs_as_flowables(view, portal_language))
873
874	# Insert history
875	if filename == 'clearance_slip.pdf':
876	hist_translation = trans(_('Workflow History'), portal_language)
877	data.append(Paragraph(hist_translation, HEADING_STYLE))
878	data.extend(creator.fromStringList(student.history.messages))
879
880	# Insert content tables (optionally on second page)
881	if hasattr(view, 'tabletitle'):
882	for i in range(len(view.tabletitle)):
883	if tabledata[i] and tableheader[i]:
884	tabletitle = view.tabletitle[i]
885	if tabletitle.startswith('_PB_'):
886	data.append(PageBreak())
887	tabletitle = view.tabletitle[i].strip('_PB_')
888	#data.append(Spacer(1, 20))
889	data.append(Paragraph(tabletitle, HEADING_STYLE))
890	data.append(Spacer(1, 8))
891	contenttable = render_table_data(tableheader[i],tabledata[i])
892	data.append(contenttable)
893
894	# Insert signatures
895	# XXX: We are using only sigs_in_footer in waeup.kofa, so we
896	# do not have a test for the following lines.
897	if signatures and not sigs_in_footer:
898	# Insert page break if necessary, else some space
899	if pagebreak:
900	data.append(PageBreak())
901	else:
902	data.append(Spacer(1, 20))
903	# Render one signature table per signature to
904	# get date and signature in line.
905	for signature in signatures:
906	signaturetables = get_signature_tables(signature)
907	data.append(signaturetables[0])
908
909	view.response.setHeader(
910	'Content-Type', 'application/pdf')
911	try:
912	pdf_stream = creator.create_pdf(
913	data, None, doc_title, author=author, footer=footer_text,
914	note=note, sigs_in_footer=sigs_in_footer, topMargin=topMargin)
915	except IOError:
916	view.flash('Error in image file.')
917	return view.redirect(view.url(view.context))
918	except LayoutError, err:
919	view.flash(
920	'PDF file could not be created. Reportlab error message: %s'
921	% escape(err.message),
922	type="danger")
923	return view.redirect(view.url(view.context))
924	if mergefiles:
925	return self._mergeFiles(mergefiles, watermark, pdf_stream)
926	return pdf_stream
927
928	def _admissionText(self, student, portal_language):
929	inst_name = grok.getSite()['configuration'].name
930	text = trans(_(
931	'This is to inform you that you have been provisionally'
932	' admitted into ${a} as follows:', mapping = {'a': inst_name}),
933	portal_language)
934	return text
935
936	def renderPDFAdmissionLetter(self, view, student=None, omit_fields=(),
937	pre_text=None, post_text=None,
938	topMargin = 1.5,
939	letterhead_path=None,
940	mergefiles=None, watermark=None):
941	"""Render pdf admission letter.
942	"""
943	if student is None:
944	return
945	style = getSampleStyleSheet()
946	if letterhead_path:
947	creator = getUtility(IPDFCreator, name='letter')
948	else:
949	creator = self.getPDFCreator(student)
950	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
951	data = []
952	doc_title = view.label
953	author = '%s (%s)' % (view.request.principal.title,
954	view.request.principal.id)
955	footer_text = view.label.split('\n')
956	if len(footer_text) > 2:
957	# We can add a department in first line
958	footer_text = footer_text[1]
959	else:
960	# Only the first line is used for the footer
961	footer_text = footer_text[0]
962	if getattr(student, 'student_id', None) is not None:
963	footer_text = "%s - %s - " % (student.student_id, footer_text)
964
965	# Text before student data
966	if pre_text is None:
967	html = format_html(self._admissionText(student, portal_language))
968	else:
969	html = format_html(pre_text)
970	if html:
971	data.append(Paragraph(html, NOTE_STYLE))
972	data.append(Spacer(1, 20))
973
974	# Student data
975	data.append(render_student_data(view, student,
976	omit_fields, lang=portal_language,
977	slipname='admission_slip.pdf'))
978
979	# Text after student data
980	data.append(Spacer(1, 20))
981	if post_text is None:
982	datelist = student.history.messages[0].split()[0].split('-')
983	creation_date = u'%s/%s/%s' % (datelist[2], datelist[1], datelist[0])
984	post_text = trans(_(
985	'Your Kofa student record was created on ${a}.',
986	mapping = {'a': creation_date}),
987	portal_language)
988	#html = format_html(post_text)
989	#data.append(Paragraph(html, NOTE_STYLE))
990
991	# Create pdf stream
992	view.response.setHeader(
993	'Content-Type', 'application/pdf')
994	pdf_stream = creator.create_pdf(
995	data, None, doc_title, author=author, footer=footer_text,
996	note=post_text, topMargin=topMargin,
997	letterhead_path=letterhead_path)
998	if mergefiles:
999	return self._mergeFiles(mergefiles, watermark, pdf_stream)
1000	return pdf_stream
1001
1002	def renderPDFTranscript(self, view, filename='transcript.pdf',
1003	student=None,
1004	studentview=None,
1005	note=None,
1006	signatures=(),
1007	sigs_in_footer=(),
1008	digital_sigs=(),
1009	show_scans=True, topMargin=1.5,
1010	omit_fields=(),
1011	tableheader=None,
1012	no_passport=False,
1013	save_file=False):
1014	"""Render pdf slip of a transcripts.
1015	"""
1016	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
1017	# XXX: tell what the different parameters mean
1018	style = getSampleStyleSheet()
1019	creator = self.getPDFCreator(student)
1020	data = []
1021	doc_title = view.label
1022	author = '%s (%s)' % (view.request.principal.title,
1023	view.request.principal.id)
1024	footer_text = view.label.split('\n')
1025	if len(footer_text) > 2:
1026	# We can add a department in first line
1027	footer_text = footer_text[1]
1028	else:
1029	# Only the first line is used for the footer
1030	footer_text = footer_text[0]
1031	if getattr(student, 'student_id', None) is not None:
1032	footer_text = "%s - %s - " % (student.student_id, footer_text)
1033
1034	# Insert student data table
1035	if student is not None:
1036	#bd_translation = trans(_('Base Data'), portal_language)
1037	#data.append(Paragraph(bd_translation, HEADING_STYLE))
1038	data.append(render_student_data(
1039	studentview, view.context,
1040	omit_fields, lang=portal_language,
1041	slipname=filename,
1042	no_passport=no_passport))
1043
1044	transcript_data = view.context.getTranscriptData()
1045	levels_data = transcript_data[0]
1046
1047	contextdata = []
1048	f_label = trans(_('Course of Study:'), portal_language)
1049	f_label = Paragraph(f_label, ENTRY1_STYLE)
1050	f_text = formatted_text(view.context.certificate.longtitle)
1051	f_text = Paragraph(f_text, ENTRY1_STYLE)
1052	contextdata.append([f_label,f_text])
1053
1054	f_label = trans(_('Faculty:'), portal_language)
1055	f_label = Paragraph(f_label, ENTRY1_STYLE)
1056	f_text = formatted_text(
1057	view.context.certificate.__parent__.__parent__.__parent__.longtitle)
1058	f_text = Paragraph(f_text, ENTRY1_STYLE)
1059	contextdata.append([f_label,f_text])
1060
1061	f_label = trans(_('Department:'), portal_language)
1062	f_label = Paragraph(f_label, ENTRY1_STYLE)
1063	f_text = formatted_text(
1064	view.context.certificate.__parent__.__parent__.longtitle)
1065	f_text = Paragraph(f_text, ENTRY1_STYLE)
1066	contextdata.append([f_label,f_text])
1067
1068	f_label = trans(_('Entry Session:'), portal_language)
1069	f_label = Paragraph(f_label, ENTRY1_STYLE)
1070	f_text = formatted_text(
1071	view.session_dict.get(view.context.entry_session))
1072	f_text = Paragraph(f_text, ENTRY1_STYLE)
1073	contextdata.append([f_label,f_text])
1074
1075	f_label = trans(_('Entry Mode:'), portal_language)
1076	f_label = Paragraph(f_label, ENTRY1_STYLE)
1077	f_text = formatted_text(view.studymode_dict.get(
1078	view.context.entry_mode))
1079	f_text = Paragraph(f_text, ENTRY1_STYLE)
1080	contextdata.append([f_label,f_text])
1081
1082	f_label = trans(_('Cumulative GPA:'), portal_language)
1083	f_label = Paragraph(f_label, ENTRY1_STYLE)
1084	format_float = getUtility(IKofaUtils).format_float
1085	cgpa = format_float(transcript_data[1], 3)
1086	if student.state == GRADUATED:
1087	f_text = formatted_text('%s (%s)' % (
1088	cgpa, self.getClassFromCGPA(transcript_data[1], student)[1]))
1089	else:
1090	f_text = formatted_text('%s' % cgpa)
1091	f_text = Paragraph(f_text, ENTRY1_STYLE)
1092	contextdata.append([f_label,f_text])
1093
1094	contexttable = Table(contextdata,style=SLIP_STYLE)
1095	data.append(contexttable)
1096
1097	transcripttables = render_transcript_data(
1098	view, tableheader, levels_data, lang=portal_language)
1099	data.extend(transcripttables)
1100
1101	# Insert signatures
1102	# XXX: We are using only sigs_in_footer in waeup.kofa, so we
1103	# do not have a test for the following lines.
1104	if signatures and not sigs_in_footer:
1105	data.append(Spacer(1, 20))
1106	# Render one signature table per signature to
1107	# get date and signature in line.
1108	for signature in signatures:
1109	signaturetables = get_signature_tables(signature)
1110	data.append(signaturetables[0])
1111
1112	# Insert digital signatures
1113	if digital_sigs:
1114	data.append(Spacer(1, 20))
1115	sigs = digital_sigs.split('\n')
1116	for sig in sigs:
1117	data.append(Paragraph(sig, NOTE_STYLE))
1118
1119	view.response.setHeader(
1120	'Content-Type', 'application/pdf')
1121	try:
1122	pdf_stream = creator.create_pdf(
1123	data, None, doc_title, author=author, footer=footer_text,
1124	note=note, sigs_in_footer=sigs_in_footer, topMargin=topMargin,
1125	view=view)
1126	except IOError:
1127	view.flash(_('Error in image file.'))
1128	return view.redirect(view.url(view.context))
1129	if save_file:
1130	self._saveTranscriptPDF(student, pdf_stream)
1131	return
1132	return pdf_stream
1133
1134	def renderPDFCourseticketsOverview(
1135	self, view, name, session, data, lecturers, orientation,
1136	title_length, note):
1137	"""Render pdf slip of course tickets for a lecturer.
1138	"""
1139	filename = '%s_%s_%s_%s.pdf' % (
1140	name, view.context.code, session, view.request.principal.id)
1141	try:
1142	session = academic_sessions_vocab.getTerm(session).title
1143	except LookupError:
1144	session = _('void')
1145	creator = getUtility(IPDFCreator, name=orientation)
1146	style = getSampleStyleSheet()
1147	pdf_data = []
1148	pdf_data += [Paragraph(
1149	translate(_('<b>Lecturer(s): ${a}</b>',
1150	mapping = {'a':lecturers})), style["Normal"]),]
1151	pdf_data += [Paragraph(
1152	translate(_('<b>Credits: ${a}</b>',
1153	mapping = {'a':view.context.credits})), style["Normal"]),]
1154	# Not used in base package.
1155	if data[1]:
1156	pdf_data += [Paragraph(
1157	translate(_('<b>${a}</b>',
1158	mapping = {'a':data[1][0]})), style["Normal"]),]
1159	pdf_data += [Paragraph(
1160	translate(_('<b>${a}</b>',
1161	mapping = {'a':data[1][1]})), style["Normal"]),]
1162	pdf_data += [Paragraph(
1163	translate(_('<b>Total Students: ${a}</b>',
1164	mapping = {'a':data[1][2]})), style["Normal"]),]
1165	pdf_data += [Paragraph(
1166	translate(_('<b>Total Pass: ${a} (${b}%)</b>',
1167	mapping = {'a':data[1][3],'b':data[1][4]})), style["Normal"]),]
1168	pdf_data += [Paragraph(
1169	translate(_('<b>Total Fail: ${a} (${b}%)</b>',
1170	mapping = {'a':data[1][5],'b':data[1][6]})), style["Normal"]),]
1171	grade_stats = []
1172	for item in sorted(data[1][7].items()):
1173	grade_stats.append(('%s=%s' % (item[0], item[1])))
1174	grade_stats_string = ', '.join(grade_stats)
1175	pdf_data += [Paragraph(
1176	translate(_('<b>${a}</b>',
1177	mapping = {'a':grade_stats_string})), style["Normal"]),]
1178	pdf_data.append(Spacer(1, 20))
1179	colWidths = [None] * len(data[0][0])
1180	pdf_data += [Table(data[0], colWidths=colWidths, style=CONTENT_STYLE,
1181	repeatRows=1)]
1182	# Process title if too long
1183	title = " ".join(view.context.title.split())
1184	ct = textwrap.fill(title, title_length)
1185	ft = "" # title
1186	#if len(textwrap.wrap(title, title_length)) > 1:
1187	# ft = textwrap.wrap(title, title_length)[0] + ' ...'
1188	doc_title = translate(_('${a} (${b})\nAcademic Session ${d}',
1189	mapping = {'a':ct,
1190	'b':view.context.code,
1191	'd':session}))
1192	if name == 'attendance':
1193	doc_title += '\n' + translate(_('Attendance Sheet'))
1194	if name == 'coursetickets':
1195	doc_title += '\n' + translate(_('Course Tickets Overview'))
1196	#footer_title = translate(_('${a} (${b}) - ${d}',
1197	# mapping = {'a':ft,
1198	# 'b':view.context.code,
1199	# 'd':session}))
1200	footer_title = translate(_('${b} - ${d}',
1201	mapping = {'b':view.context.code,
1202	'd':session}))
1203	author = '%s (%s)' % (view.request.principal.title,
1204	view.request.principal.id)
1205	view.response.setHeader(
1206	'Content-Type', 'application/pdf')
1207	view.response.setHeader(
1208	'Content-Disposition:', 'attachment; filename="%s' % filename)
1209	pdf_stream = creator.create_pdf(
1210	pdf_data, None, doc_title, author, footer_title + ' -', note
1211	)
1212	return pdf_stream
1213
1214	def updateCourseTickets(self, course):
1215	"""Udate course tickets if course attributes were changed.
1216	"""
1217	current_academic_session = grok.getSite()[
1218	'configuration'].current_academic_session
1219	if not current_academic_session:
1220	return
1221	cat = queryUtility(ICatalog, name='coursetickets_catalog')
1222	coursetickets = cat.searchResults(
1223	code=(course.code, course.code),
1224	session=(current_academic_session,current_academic_session))
1225	number = 0
1226	ob_class = self.__implemented__.__name__.replace('waeup.kofa.', '')
1227	for ticket in coursetickets:
1228	if ticket.credits == course.credits:
1229	continue
1230	if ticket.student.current_session != current_academic_session:
1231	continue
1232	if ticket.student.state not in (PAID,):
1233	continue
1234	number += 1
1235	ticket.student.__parent__.logger.info(
1236	'%s - %s %s/%s credits updated (%s->%s)' % (
1237	ob_class, ticket.student.student_id,
1238	ticket.level, ticket.code, course.credits,
1239	ticket.credits))
1240	ticket.credits = course.credits
1241	return number
1242
1243	#: A dictionary which maps widget names to headlines. The headline
1244	#: is rendered in forms and on pdf slips above the respective
1245	#: display or input widget. There are no separating headlines
1246	#: in the base package.
1247	SEPARATORS_DICT = {}
1248
1249	#: A tuple containing names of file upload viewlets which are not shown
1250	#: on the `StudentClearanceManageFormPage`. Nothing is being skipped
1251	#: in the base package. This attribute makes only sense, if intermediate
1252	#: custom packages are being used, like we do for all Nigerian portals.
1253	SKIP_UPLOAD_VIEWLETS = ()
1254
1255	#: A tuple containing the names of registration states in which changing of
1256	#: passport pictures is allowed.
1257	PORTRAIT_CHANGE_STATES = (ADMITTED,)
1258
1259	#: A tuple containing the names of registration states in which changing of
1260	#: scanned signatures is allowed.
1261	SIGNATURE_CHANGE_STATES = ()
1262
1263	#: A tuple containing all exporter names referring to students or
1264	#: subobjects thereof.
1265	STUDENT_EXPORTER_NAMES = (
1266	'students',
1267	'studentstudycourses',
1268	'studentstudycourses_1',
1269	#'studentstudycourses_2',
1270	'studentstudylevels',
1271	#'studentstudylevels_1',
1272	#'studentstudylevels_2',
1273	'coursetickets',
1274	#'coursetickets_1',
1275	#'coursetickets_2',
1276	'studentpayments',
1277	'bedtickets',
1278	'trimmed',
1279	'outstandingcourses',
1280	'unpaidpayments',
1281	'sfpaymentsoverview',
1282	'sessionpaymentsoverview',
1283	'studylevelsoverview',
1284	'combocard',
1285	'bursary',
1286	'accommodationpayments',
1287	'transcriptdata',
1288	'trimmedpayments',
1289	)
1290
1291	#: A tuple containing all exporter names needed for backing
1292	#: up student data
1293	STUDENT_BACKUP_EXPORTER_NAMES = (
1294	'students',
1295	'studentstudycourses',
1296	'studentstudycourses_1',
1297	'studentstudycourses_2',
1298	'studentstudylevels',
1299	'studentstudylevels_1',
1300	'studentstudylevels_2',
1301	'coursetickets',
1302	'coursetickets_1',
1303	'coursetickets_2',
1304	'studentpayments',
1305	'bedtickets')
1306
1307	# Maximum size of upload files in kB
1308	MAX_KB = 250
1309
1310	#: A prefix used when generating new student ids. Each student id will
1311	#: start with this string. The default is 'K' for Kofa.
1312	STUDENT_ID_PREFIX = u'K'

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