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source: main/waeup.kofa/trunk/src/waeup/kofa/students/utils.py @ 16966

Last change on this file since 16966 was 16966, checked in by Henrik Bettermann, 2 years ago
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1	## $Id: utils.py 16966 2022-06-15 12:34:14Z 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	p_item = self.getAccommodationDetails(student)['bt']
493	amount = academic_session.booking_fee
494	elif category == 'hostel_maintenance':
495	amount = 0.0
496	bedticket = student['accommodation'].get(
497	str(student.current_session), None)
498	if bedticket is not None and bedticket.bed is not None:
499	p_item = bedticket.bed_coordinates
500	if bedticket.bed.__parent__.maint_fee > 0:
501	amount = bedticket.bed.__parent__.maint_fee
502	else:
503	# fallback
504	amount = academic_session.maint_fee
505	else:
506	return _(u'No bed allocated.'), None
507	elif category == 'combi' and combi:
508	categories = getUtility(IKofaUtils).COMBI_PAYMENT_CATEGORIES
509	for cat in combi:
510	fee_name = cat + '_fee'
511	cat_amount = getattr(academic_session, fee_name, 0.0)
512	if not cat_amount:
513	return _('%s undefined.' % categories[cat]), None
514	amount += cat_amount
515	p_item += u'%s + ' % categories[cat]
516	p_item = p_item.strip(' + ')
517	else:
518	fee_name = category + '_fee'
519	amount = getattr(academic_session, fee_name, 0.0)
520	if amount in (0.0, None):
521	return _('Amount could not be determined.'), None
522	if self.samePaymentMade(student, category, p_item, p_session):
523	return _('This type of payment has already been made.'), None
524	if self._isPaymentDisabled(p_session, category, student):
525	return _('This category of payments has been disabled.'), None
526	payment = createObject(u'waeup.StudentOnlinePayment')
527	timestamp = ("%d" % int(time()*10000))[1:]
528	payment.p_id = "p%s" % timestamp
529	payment.p_category = category
530	payment.p_item = p_item
531	payment.p_session = p_session
532	payment.p_level = p_level
533	payment.p_current = p_current
534	payment.amount_auth = amount
535	payment.p_combi = combi
536	return None, payment
537
538	def setBalanceDetails(self, category, student,
539	balance_session, balance_level, balance_amount):
540	"""Create a balance payment ticket and set the payment data
541	as selected by the student.
542	"""
543	p_item = u'Balance'
544	p_session = balance_session
545	p_level = balance_level
546	p_current = False
547	amount = balance_amount
548	academic_session = self._getSessionConfiguration(p_session)
549	if academic_session == None:
550	return _(u'Session configuration object is not available.'), None
551	if amount in (0.0, None) or amount < 0:
552	return _('Amount must be greater than 0.'), None
553	payment = createObject(u'waeup.StudentOnlinePayment')
554	timestamp = ("%d" % int(time()*10000))[1:]
555	payment.p_id = "p%s" % timestamp
556	payment.p_category = category
557	payment.p_item = p_item
558	payment.p_session = p_session
559	payment.p_level = p_level
560	payment.p_current = p_current
561	payment.amount_auth = amount
562	return None, payment
563
564	def increaseMatricInteger(self, student):
565	"""Increase counter for matric numbers.
566	This counter can be a centrally stored attribute or an attribute of
567	faculties, departments or certificates. In the base package the counter
568	is as an attribute of the site configuration container.
569	"""
570	grok.getSite()['configuration'].next_matric_integer += 1
571	return
572
573	def constructMatricNumber(self, student):
574	"""Fetch the matric number counter which fits the student and
575	construct the new matric number of the student.
576	In the base package the counter is returned which is as an attribute
577	of the site configuration container.
578	"""
579	next_integer = grok.getSite()['configuration'].next_matric_integer
580	if next_integer == 0:
581	return _('Matriculation number cannot be set.'), None
582	return None, unicode(next_integer)
583
584	def setMatricNumber(self, student):
585	"""Set matriculation number of student. If the student's matric number
586	is unset a new matric number is
587	constructed according to the matriculation number construction rules
588	defined in the `constructMatricNumber` method. The new matric number is
589	set, the students catalog updated. The corresponding matric number
590	counter is increased by one.
591
592	This method is tested but not used in the base package. It can
593	be used in custom packages by adding respective views
594	and by customizing `increaseMatricInteger` and `constructMatricNumber`
595	according to the university's matriculation number construction rules.
596
597	The method can be disabled by setting the counter to zero.
598	"""
599	if student.matric_number is not None:
600	return _('Matriculation number already set.'), None
601	if student.certcode is None:
602	return _('No certificate assigned.'), None
603	error, matric_number = self.constructMatricNumber(student)
604	if error:
605	return error, None
606	try:
607	student.matric_number = matric_number
608	except MatNumNotInSource:
609	return _('Matriculation number %s exists.' % matric_number), None
610	notify(grok.ObjectModifiedEvent(student))
611	self.increaseMatricInteger(student)
612	return None, matric_number
613
614	def allowPortraitChange(self, student):
615	"""Check if student is allowed to change the portrait file.
616	"""
617	if student.state not in self.PORTRAIT_CHANGE_STATES:
618	return False
619	return True
620
621	def getAccommodationDetails(self, student):
622	"""Determine the accommodation data of a student.
623	"""
624	d = {}
625	d['error'] = u''
626	hostels = grok.getSite()['hostels']
627	d['booking_session'] = hostels.accommodation_session
628	d['allowed_states'] = hostels.accommodation_states
629	d['startdate'] = hostels.startdate
630	d['enddate'] = hostels.enddate
631	d['expired'] = hostels.expired
632	# Determine bed type
633	studycourse = student['studycourse']
634	certificate = getattr(studycourse,'certificate',None)
635	entry_session = studycourse.entry_session
636	current_level = studycourse.current_level
637	if None in (entry_session, current_level, certificate):
638	return d
639	end_level = certificate.end_level
640	if current_level == 10:
641	bt = 'pr'
642	elif entry_session == grok.getSite()['hostels'].accommodation_session:
643	bt = 'fr'
644	elif current_level >= end_level:
645	bt = 'fi'
646	else:
647	bt = 're'
648	if student.sex == 'f':
649	sex = 'female'
650	else:
651	sex = 'male'
652	special_handling = 'regular'
653	d['bt'] = u'%s_%s_%s' % (special_handling,sex,bt)
654	return d
655
656	def checkAccommodationRequirements(self, student, acc_details):
657	if acc_details.get('expired', False):
658	startdate = acc_details.get('startdate')
659	enddate = acc_details.get('enddate')
660	if startdate and enddate:
661	tz = getUtility(IKofaUtils).tzinfo
662	startdate = to_timezone(
663	startdate, tz).strftime("%d/%m/%Y %H:%M:%S")
664	enddate = to_timezone(
665	enddate, tz).strftime("%d/%m/%Y %H:%M:%S")
666	return _("Outside booking period: ${a} - ${b}",
667	mapping = {'a': startdate, 'b': enddate})
668	else:
669	return _("Outside booking period.")
670	if not acc_details.get('bt'):
671	return _("Your data are incomplete.")
672	if not student.state in acc_details['allowed_states']:
673	return _("You are in the wrong registration state.")
674	if student['studycourse'].current_session != acc_details[
675	'booking_session']:
676	return _('Your current session does not '
677	'match accommodation session.')
678	bsession = str(acc_details['booking_session'])
679	if bsession in student['accommodation'].keys() \
680	and not 'booking expired' in \
681	student['accommodation'][bsession].bed_coordinates:
682	return _('You already booked a bed space in '
683	'current accommodation session.')
684	return
685
686	def selectBed(self, available_beds):
687	"""Select a bed from a filtered list of available beds.
688	In the base configuration beds are sorted by the sort id
689	of the hostel and the bed number. The first bed found in
690	this sorted list is taken.
691	"""
692	sorted_beds = sorted(available_beds,
693	key=lambda bed: 1000 * bed.__parent__.sort_id + bed.bed_number)
694	return sorted_beds[0]
695
696	def GPABoundaries(self, faccode=None, depcode=None, certcode=None):
697	return ((1, 'Fail'),
698	(1.5, 'Pass'),
699	(2.4, '3rd Class'),
700	(3.5, '2nd Class Lower'),
701	(4.5, '2nd Class Upper'),
702	(5, '1st Class'))
703
704	def getClassFromCGPA(self, gpa, student):
705	"""Determine the class of degree. In some custom packages
706	this class depends on e.g. the entry session of the student. In the
707	base package, it does not.
708	"""
709	if gpa < self.GPABoundaries()[0][0]:
710	return 0, self.GPABoundaries()[0][1]
711	if gpa < self.GPABoundaries()[1][0]:
712	return 1, self.GPABoundaries()[1][1]
713	if gpa < self.GPABoundaries()[2][0]:
714	return 2, self.GPABoundaries()[2][1]
715	if gpa < self.GPABoundaries()[3][0]:
716	return 3, self.GPABoundaries()[3][1]
717	if gpa < self.GPABoundaries()[4][0]:
718	return 4, self.GPABoundaries()[4][1]
719	if gpa <= self.GPABoundaries()[5][0]:
720	return 5, self.GPABoundaries()[5][1]
721	return
722
723	def getDegreeClassNumber(self, level_obj):
724	"""Get degree class number (used for SessionResultsPresentation
725	reports).
726	"""
727	if level_obj.gpa_params[1] == 0:
728	# No credits weighted
729	return 6
730	return self.getClassFromCGPA(
731	level_obj.cumulative_params[0], level_obj.student)[0]
732
733	def _saveTranscriptPDF(self, student, transcript):
734	"""Create a transcript PDF file and store it in student folder.
735	"""
736	file_store = getUtility(IExtFileStore)
737	file_id = IFileStoreNameChooser(student).chooseName(
738	attr="final_transcript.pdf")
739	file_store.createFile(file_id, StringIO(transcript))
740	return
741
742	def warnCreditsOOR(self, studylevel, course=None):
743	"""Return message if credits are out of range. In the base
744	package only maximum credits is set.
745	"""
746	if course and studylevel.total_credits + course.credits > 50:
747	return _('Maximum credits exceeded.')
748	elif studylevel.total_credits > 50:
749	return _('Maximum credits exceeded.')
750	return
751
752	def warnCourseAlreadyPassed(self, studylevel, course):
753	"""Return message if course has already been passed at
754	previous levels.
755	"""
756	for slevel in studylevel.__parent__.values():
757	for cticket in slevel.values():
758	if cticket.code == course.code \
759	and cticket.total_score >= cticket.passmark:
760	return _('Course has already been passed at previous level.')
761	return False
762
763	def getBedCoordinates(self, bedticket):
764	"""Return descriptive bed coordinates.
765	This method can be used to customize the `display_coordinates`
766	property method in order to display a
767	customary description of the bed space.
768	"""
769	return bedticket.bed_coordinates
770
771	def clearance_disabled_message(self, student):
772	"""Render message if clearance is disabled.
773	"""
774	try:
775	session_config = grok.getSite()[
776	'configuration'][str(student.current_session)]
777	except KeyError:
778	return _('Session configuration object is not available.')
779	if not session_config.clearance_enabled:
780	return _('Clearance is disabled for this session.')
781	return None
782
783	def getPDFCreator(self, context):
784	"""Get a pdf creator suitable for `context`.
785	The default implementation always returns the default creator.
786	"""
787	return getUtility(IPDFCreator)
788
789	def _mergeFiles(self, mergefiles, watermark, pdf_stream):
790	merger = PdfFileMerger()
791	merger.append(StringIO(pdf_stream))
792	for file in mergefiles:
793	if watermark:
794	# Pass through all pages of each file
795	# and merge with watermark page. Paint
796	# watermark first to make it transparent.
797	marked_file = PdfFileWriter()
798	orig_file = PdfFileReader(file)
799	num_pages = orig_file.getNumPages()
800	for num in range(num_pages):
801	watermark_file = PdfFileReader(watermark)
802	page = watermark_file.getPage(0)
803	page.mergePage(orig_file.getPage(num))
804	marked_file.addPage(page)
805	# Save into a file-like object
806	tmp1 = StringIO()
807	marked_file.write(tmp1)
808	# Append the file-like object
809	merger.append(tmp1)
810	else:
811	# Just append the file object
812	merger.append(file)
813	# Save into a file-like object
814	tmp2 = StringIO()
815	merger.write(tmp2)
816	return tmp2.getvalue()
817
818	def renderPDF(self, view, filename='slip.pdf', student=None,
819	studentview=None,
820	tableheader=[], tabledata=[],
821	note=None, signatures=None, sigs_in_footer=(),
822	show_scans=True, topMargin=1.5,
823	omit_fields=(),
824	mergefiles=None, watermark=None,
825	pagebreak=False):
826	"""Render pdf slips for various pages (also some pages
827	in the applicants module).
828	"""
829	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
830	# XXX: tell what the different parameters mean
831	style = getSampleStyleSheet()
832	creator = self.getPDFCreator(student)
833	data = []
834	doc_title = view.label
835	author = '%s (%s)' % (view.request.principal.title,
836	view.request.principal.id)
837	footer_text = view.label.split('\n')
838	if len(footer_text) > 2:
839	# We can add a department in first line, second line is used
840	footer_text = footer_text[1]
841	else:
842	# Only the first line is used for the footer
843	footer_text = footer_text[0]
844	if getattr(student, 'student_id', None) is not None:
845	footer_text = "%s - %s - " % (student.student_id, footer_text)
846
847	# Insert student data table
848	if student is not None:
849	if view.form_fields:
850	bd_translation = trans(_('Base Data'), portal_language)
851	data.append(Paragraph(bd_translation, HEADING_STYLE))
852	data.append(render_student_data(
853	studentview, view.context, omit_fields, lang=portal_language,
854	slipname=filename))
855
856	# Insert widgets
857	if view.form_fields:
858	data.append(Paragraph(view.title, HEADING_STYLE))
859	separators = getattr(self, 'SEPARATORS_DICT', {})
860	table = creator.getWidgetsTable(
861	view.form_fields, view.context, None, lang=portal_language,
862	separators=separators)
863	data.append(table)
864
865	# Insert scanned docs
866	if show_scans:
867	data.extend(docs_as_flowables(view, portal_language))
868
869	# Insert history
870	if filename == 'clearance_slip.pdf':
871	hist_translation = trans(_('Workflow History'), portal_language)
872	data.append(Paragraph(hist_translation, HEADING_STYLE))
873	data.extend(creator.fromStringList(student.history.messages))
874
875	# Insert content tables (optionally on second page)
876	if hasattr(view, 'tabletitle'):
877	for i in range(len(view.tabletitle)):
878	if tabledata[i] and tableheader[i]:
879	tabletitle = view.tabletitle[i]
880	if tabletitle.startswith('_PB_'):
881	data.append(PageBreak())
882	tabletitle = view.tabletitle[i].strip('_PB_')
883	#data.append(Spacer(1, 20))
884	data.append(Paragraph(tabletitle, HEADING_STYLE))
885	data.append(Spacer(1, 8))
886	contenttable = render_table_data(tableheader[i],tabledata[i])
887	data.append(contenttable)
888
889	# Insert signatures
890	# XXX: We are using only sigs_in_footer in waeup.kofa, so we
891	# do not have a test for the following lines.
892	if signatures and not sigs_in_footer:
893	# Insert page break if necessary, else some space
894	if pagebreak:
895	data.append(PageBreak())
896	else:
897	data.append(Spacer(1, 20))
898	# Render one signature table per signature to
899	# get date and signature in line.
900	for signature in signatures:
901	signaturetables = get_signature_tables(signature)
902	data.append(signaturetables[0])
903
904	view.response.setHeader(
905	'Content-Type', 'application/pdf')
906	try:
907	pdf_stream = creator.create_pdf(
908	data, None, doc_title, author=author, footer=footer_text,
909	note=note, sigs_in_footer=sigs_in_footer, topMargin=topMargin)
910	except IOError:
911	view.flash('Error in image file.')
912	return view.redirect(view.url(view.context))
913	except LayoutError, err:
914	view.flash(
915	'PDF file could not be created. Reportlab error message: %s'
916	% escape(err.message),
917	type="danger")
918	return view.redirect(view.url(view.context))
919	if mergefiles:
920	return self._mergeFiles(mergefiles, watermark, pdf_stream)
921	return pdf_stream
922
923	def _admissionText(self, student, portal_language):
924	inst_name = grok.getSite()['configuration'].name
925	text = trans(_(
926	'This is to inform you that you have been provisionally'
927	' admitted into ${a} as follows:', mapping = {'a': inst_name}),
928	portal_language)
929	return text
930
931	def renderPDFAdmissionLetter(self, view, student=None, omit_fields=(),
932	pre_text=None, post_text=None,
933	topMargin = 1.5,
934	letterhead_path=None,
935	mergefiles=None, watermark=None):
936	"""Render pdf admission letter.
937	"""
938	if student is None:
939	return
940	style = getSampleStyleSheet()
941	if letterhead_path:
942	creator = getUtility(IPDFCreator, name='letter')
943	else:
944	creator = self.getPDFCreator(student)
945	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
946	data = []
947	doc_title = view.label
948	author = '%s (%s)' % (view.request.principal.title,
949	view.request.principal.id)
950	footer_text = view.label.split('\n')
951	if len(footer_text) > 2:
952	# We can add a department in first line
953	footer_text = footer_text[1]
954	else:
955	# Only the first line is used for the footer
956	footer_text = footer_text[0]
957	if getattr(student, 'student_id', None) is not None:
958	footer_text = "%s - %s - " % (student.student_id, footer_text)
959
960	# Text before student data
961	if pre_text is None:
962	html = format_html(self._admissionText(student, portal_language))
963	else:
964	html = format_html(pre_text)
965	if html:
966	data.append(Paragraph(html, NOTE_STYLE))
967	data.append(Spacer(1, 20))
968
969	# Student data
970	data.append(render_student_data(view, student,
971	omit_fields, lang=portal_language,
972	slipname='admission_slip.pdf'))
973
974	# Text after student data
975	data.append(Spacer(1, 20))
976	if post_text is None:
977	datelist = student.history.messages[0].split()[0].split('-')
978	creation_date = u'%s/%s/%s' % (datelist[2], datelist[1], datelist[0])
979	post_text = trans(_(
980	'Your Kofa student record was created on ${a}.',
981	mapping = {'a': creation_date}),
982	portal_language)
983	#html = format_html(post_text)
984	#data.append(Paragraph(html, NOTE_STYLE))
985
986	# Create pdf stream
987	view.response.setHeader(
988	'Content-Type', 'application/pdf')
989	pdf_stream = creator.create_pdf(
990	data, None, doc_title, author=author, footer=footer_text,
991	note=post_text, topMargin=topMargin,
992	letterhead_path=letterhead_path)
993	if mergefiles:
994	return self._mergeFiles(mergefiles, watermark, pdf_stream)
995	return pdf_stream
996
997	def renderPDFTranscript(self, view, filename='transcript.pdf',
998	student=None,
999	studentview=None,
1000	note=None,
1001	signatures=(),
1002	sigs_in_footer=(),
1003	digital_sigs=(),
1004	show_scans=True, topMargin=1.5,
1005	omit_fields=(),
1006	tableheader=None,
1007	no_passport=False,
1008	save_file=False):
1009	"""Render pdf slip of a transcripts.
1010	"""
1011	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
1012	# XXX: tell what the different parameters mean
1013	style = getSampleStyleSheet()
1014	creator = self.getPDFCreator(student)
1015	data = []
1016	doc_title = view.label
1017	author = '%s (%s)' % (view.request.principal.title,
1018	view.request.principal.id)
1019	footer_text = view.label.split('\n')
1020	if len(footer_text) > 2:
1021	# We can add a department in first line
1022	footer_text = footer_text[1]
1023	else:
1024	# Only the first line is used for the footer
1025	footer_text = footer_text[0]
1026	if getattr(student, 'student_id', None) is not None:
1027	footer_text = "%s - %s - " % (student.student_id, footer_text)
1028
1029	# Insert student data table
1030	if student is not None:
1031	#bd_translation = trans(_('Base Data'), portal_language)
1032	#data.append(Paragraph(bd_translation, HEADING_STYLE))
1033	data.append(render_student_data(
1034	studentview, view.context,
1035	omit_fields, lang=portal_language,
1036	slipname=filename,
1037	no_passport=no_passport))
1038
1039	transcript_data = view.context.getTranscriptData()
1040	levels_data = transcript_data[0]
1041
1042	contextdata = []
1043	f_label = trans(_('Course of Study:'), portal_language)
1044	f_label = Paragraph(f_label, ENTRY1_STYLE)
1045	f_text = formatted_text(view.context.certificate.longtitle)
1046	f_text = Paragraph(f_text, ENTRY1_STYLE)
1047	contextdata.append([f_label,f_text])
1048
1049	f_label = trans(_('Faculty:'), portal_language)
1050	f_label = Paragraph(f_label, ENTRY1_STYLE)
1051	f_text = formatted_text(
1052	view.context.certificate.__parent__.__parent__.__parent__.longtitle)
1053	f_text = Paragraph(f_text, ENTRY1_STYLE)
1054	contextdata.append([f_label,f_text])
1055
1056	f_label = trans(_('Department:'), portal_language)
1057	f_label = Paragraph(f_label, ENTRY1_STYLE)
1058	f_text = formatted_text(
1059	view.context.certificate.__parent__.__parent__.longtitle)
1060	f_text = Paragraph(f_text, ENTRY1_STYLE)
1061	contextdata.append([f_label,f_text])
1062
1063	f_label = trans(_('Entry Session:'), portal_language)
1064	f_label = Paragraph(f_label, ENTRY1_STYLE)
1065	f_text = formatted_text(
1066	view.session_dict.get(view.context.entry_session))
1067	f_text = Paragraph(f_text, ENTRY1_STYLE)
1068	contextdata.append([f_label,f_text])
1069
1070	f_label = trans(_('Entry Mode:'), portal_language)
1071	f_label = Paragraph(f_label, ENTRY1_STYLE)
1072	f_text = formatted_text(view.studymode_dict.get(
1073	view.context.entry_mode))
1074	f_text = Paragraph(f_text, ENTRY1_STYLE)
1075	contextdata.append([f_label,f_text])
1076
1077	f_label = trans(_('Cumulative GPA:'), portal_language)
1078	f_label = Paragraph(f_label, ENTRY1_STYLE)
1079	format_float = getUtility(IKofaUtils).format_float
1080	cgpa = format_float(transcript_data[1], 3)
1081	if student.state == GRADUATED:
1082	f_text = formatted_text('%s (%s)' % (
1083	cgpa, self.getClassFromCGPA(transcript_data[1], student)[1]))
1084	else:
1085	f_text = formatted_text('%s' % cgpa)
1086	f_text = Paragraph(f_text, ENTRY1_STYLE)
1087	contextdata.append([f_label,f_text])
1088
1089	contexttable = Table(contextdata,style=SLIP_STYLE)
1090	data.append(contexttable)
1091
1092	transcripttables = render_transcript_data(
1093	view, tableheader, levels_data, lang=portal_language)
1094	data.extend(transcripttables)
1095
1096	# Insert signatures
1097	# XXX: We are using only sigs_in_footer in waeup.kofa, so we
1098	# do not have a test for the following lines.
1099	if signatures and not sigs_in_footer:
1100	data.append(Spacer(1, 20))
1101	# Render one signature table per signature to
1102	# get date and signature in line.
1103	for signature in signatures:
1104	signaturetables = get_signature_tables(signature)
1105	data.append(signaturetables[0])
1106
1107	# Insert digital signatures
1108	if digital_sigs:
1109	data.append(Spacer(1, 20))
1110	sigs = digital_sigs.split('\n')
1111	for sig in sigs:
1112	data.append(Paragraph(sig, NOTE_STYLE))
1113
1114	view.response.setHeader(
1115	'Content-Type', 'application/pdf')
1116	try:
1117	pdf_stream = creator.create_pdf(
1118	data, None, doc_title, author=author, footer=footer_text,
1119	note=note, sigs_in_footer=sigs_in_footer, topMargin=topMargin,
1120	view=view)
1121	except IOError:
1122	view.flash(_('Error in image file.'))
1123	return view.redirect(view.url(view.context))
1124	if save_file:
1125	self._saveTranscriptPDF(student, pdf_stream)
1126	return
1127	return pdf_stream
1128
1129	def renderPDFCourseticketsOverview(
1130	self, view, name, session, data, lecturers, orientation,
1131	title_length, note):
1132	"""Render pdf slip of course tickets for a lecturer.
1133	"""
1134	filename = '%s_%s_%s_%s.pdf' % (
1135	name, view.context.code, session, view.request.principal.id)
1136	try:
1137	session = academic_sessions_vocab.getTerm(session).title
1138	except LookupError:
1139	session = _('void')
1140	creator = getUtility(IPDFCreator, name=orientation)
1141	style = getSampleStyleSheet()
1142	pdf_data = []
1143	pdf_data += [Paragraph(
1144	translate(_('<b>Lecturer(s): ${a}</b>',
1145	mapping = {'a':lecturers})), style["Normal"]),]
1146	pdf_data += [Paragraph(
1147	translate(_('<b>Credits: ${a}</b>',
1148	mapping = {'a':view.context.credits})), style["Normal"]),]
1149	# Not used in base package.
1150	if data[1]:
1151	pdf_data += [Paragraph(
1152	translate(_('<b>${a}</b>',
1153	mapping = {'a':data[1][0]})), style["Normal"]),]
1154	pdf_data += [Paragraph(
1155	translate(_('<b>${a}</b>',
1156	mapping = {'a':data[1][1]})), style["Normal"]),]
1157	pdf_data += [Paragraph(
1158	translate(_('<b>Total Students: ${a}</b>',
1159	mapping = {'a':data[1][2]})), style["Normal"]),]
1160	pdf_data += [Paragraph(
1161	translate(_('<b>Total Pass: ${a} (${b}%)</b>',
1162	mapping = {'a':data[1][3],'b':data[1][4]})), style["Normal"]),]
1163	pdf_data += [Paragraph(
1164	translate(_('<b>Total Fail: ${a} (${b}%)</b>',
1165	mapping = {'a':data[1][5],'b':data[1][6]})), style["Normal"]),]
1166	grade_stats = []
1167	for item in sorted(data[1][7].items()):
1168	grade_stats.append(('%s=%s' % (item[0], item[1])))
1169	grade_stats_string = ', '.join(grade_stats)
1170	pdf_data += [Paragraph(
1171	translate(_('<b>${a}</b>',
1172	mapping = {'a':grade_stats_string})), style["Normal"]),]
1173	pdf_data.append(Spacer(1, 20))
1174	colWidths = [None] * len(data[0][0])
1175	pdf_data += [Table(data[0], colWidths=colWidths, style=CONTENT_STYLE,
1176	repeatRows=1)]
1177	# Process title if too long
1178	title = " ".join(view.context.title.split())
1179	ct = textwrap.fill(title, title_length)
1180	ft = "" # title
1181	#if len(textwrap.wrap(title, title_length)) > 1:
1182	# ft = textwrap.wrap(title, title_length)[0] + ' ...'
1183	doc_title = translate(_('${a} (${b})\nAcademic Session ${d}',
1184	mapping = {'a':ct,
1185	'b':view.context.code,
1186	'd':session}))
1187	if name == 'attendance':
1188	doc_title += '\n' + translate(_('Attendance Sheet'))
1189	if name == 'coursetickets':
1190	doc_title += '\n' + translate(_('Course Tickets Overview'))
1191	#footer_title = translate(_('${a} (${b}) - ${d}',
1192	# mapping = {'a':ft,
1193	# 'b':view.context.code,
1194	# 'd':session}))
1195	footer_title = translate(_('${b} - ${d}',
1196	mapping = {'b':view.context.code,
1197	'd':session}))
1198	author = '%s (%s)' % (view.request.principal.title,
1199	view.request.principal.id)
1200	view.response.setHeader(
1201	'Content-Type', 'application/pdf')
1202	view.response.setHeader(
1203	'Content-Disposition:', 'attachment; filename="%s' % filename)
1204	pdf_stream = creator.create_pdf(
1205	pdf_data, None, doc_title, author, footer_title + ' -', note
1206	)
1207	return pdf_stream
1208
1209	def updateCourseTickets(self, course):
1210	"""Udate course tickets if course attributes were changed.
1211	"""
1212	current_academic_session = grok.getSite()[
1213	'configuration'].current_academic_session
1214	if not current_academic_session:
1215	return
1216	cat = queryUtility(ICatalog, name='coursetickets_catalog')
1217	coursetickets = cat.searchResults(
1218	code=(course.code, course.code),
1219	session=(current_academic_session,current_academic_session))
1220	number = 0
1221	ob_class = self.__implemented__.__name__.replace('waeup.kofa.', '')
1222	for ticket in coursetickets:
1223	if ticket.credits == course.credits:
1224	continue
1225	if ticket.student.current_session != current_academic_session:
1226	continue
1227	if ticket.student.state not in (PAID,):
1228	continue
1229	number += 1
1230	ticket.student.__parent__.logger.info(
1231	'%s - %s %s/%s credits updated (%s->%s)' % (
1232	ob_class, ticket.student.student_id,
1233	ticket.level, ticket.code, course.credits,
1234	ticket.credits))
1235	ticket.credits = course.credits
1236	return number
1237
1238	#: A dictionary which maps widget names to headlines. The headline
1239	#: is rendered in forms and on pdf slips above the respective
1240	#: display or input widget. There are no separating headlines
1241	#: in the base package.
1242	SEPARATORS_DICT = {}
1243
1244	#: A tuple containing names of file upload viewlets which are not shown
1245	#: on the `StudentClearanceManageFormPage`. Nothing is being skipped
1246	#: in the base package. This attribute makes only sense, if intermediate
1247	#: custom packages are being used, like we do for all Nigerian portals.
1248	SKIP_UPLOAD_VIEWLETS = ()
1249
1250	#: A tuple containing the names of registration states in which changing of
1251	#: passport pictures is allowed.
1252	PORTRAIT_CHANGE_STATES = (ADMITTED,)
1253
1254	#: A tuple containing the names of registration states in which changing of
1255	#: scanned signatures is allowed.
1256	SIGNATURE_CHANGE_STATES = ()
1257
1258	#: A tuple containing all exporter names referring to students or
1259	#: subobjects thereof.
1260	STUDENT_EXPORTER_NAMES = (
1261	'students',
1262	'studentstudycourses',
1263	'studentstudycourses_1',
1264	#'studentstudycourses_2',
1265	'studentstudylevels',
1266	#'studentstudylevels_1',
1267	#'studentstudylevels_2',
1268	'coursetickets',
1269	#'coursetickets_1',
1270	#'coursetickets_2',
1271	'studentpayments',
1272	'bedtickets',
1273	'trimmed',
1274	'outstandingcourses',
1275	'unpaidpayments',
1276	'sfpaymentsoverview',
1277	'sessionpaymentsoverview',
1278	'studylevelsoverview',
1279	'combocard',
1280	'bursary',
1281	'accommodationpayments',
1282	'transcriptdata',
1283	'trimmedpayments',
1284	)
1285
1286	#: A tuple containing all exporter names needed for backing
1287	#: up student data
1288	STUDENT_BACKUP_EXPORTER_NAMES = (
1289	'students',
1290	'studentstudycourses',
1291	'studentstudycourses_1',
1292	'studentstudycourses_2',
1293	'studentstudylevels',
1294	'studentstudylevels_1',
1295	'studentstudylevels_2',
1296	'coursetickets',
1297	'coursetickets_1',
1298	'coursetickets_2',
1299	'studentpayments',
1300	'bedtickets')
1301
1302	# Maximum size of upload files in kB
1303	MAX_KB = 250
1304
1305	#: A prefix used when generating new student ids. Each student id will
1306	#: start with this string. The default is 'K' for Kofa.
1307	STUDENT_ID_PREFIX = u'K'

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