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source: main/waeup.kofa/trunk/src/waeup/kofa/students/utils.py @ 15419

Last change on this file since 15419 was 15337, checked in by Henrik Bettermann, 6 years ago
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1	## $Id: utils.py 15337 2019-02-28 09:54:47Z 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 time import time
23	from cStringIO import StringIO
24	from reportlab.lib import colors
25	from reportlab.lib.units import cm
26	from reportlab.lib.pagesizes import A4
27	from reportlab.lib.styles import getSampleStyleSheet
28	from reportlab.platypus import Paragraph, Image, Table, Spacer
29	from reportlab.platypus.doctemplate import LayoutError
30	from zope.event import notify
31	from zope.schema.interfaces import ConstraintNotSatisfied
32	from zope.component import getUtility, createObject
33	from zope.formlib.form import setUpEditWidgets
34	from zope.i18n import translate
35	from waeup.kofa.interfaces import (
36	IExtFileStore, IKofaUtils, RETURNING, PAID, CLEARED,
37	academic_sessions_vocab, IFileStoreNameChooser)
38	from waeup.kofa.interfaces import MessageFactory as _
39	from waeup.kofa.students.interfaces import IStudentsUtils
40	from waeup.kofa.students.workflow import ADMITTED
41	from waeup.kofa.students.vocabularies import StudyLevelSource, MatNumNotInSource
42	from waeup.kofa.browser.pdf import (
43	ENTRY1_STYLE, format_html, NOTE_STYLE, HEADING_STYLE,
44	get_signature_tables, get_qrcode)
45	from waeup.kofa.browser.interfaces import IPDFCreator
46	from waeup.kofa.utils.helpers import to_timezone
47
48	SLIP_STYLE = [
49	('VALIGN',(0,0),(-1,-1),'TOP'),
50	#('FONT', (0,0), (-1,-1), 'Helvetica', 11),
51	]
52
53	CONTENT_STYLE = [
54	('VALIGN',(0,0),(-1,-1),'TOP'),
55	#('FONT', (0,0), (-1,-1), 'Helvetica', 8),
56	#('TEXTCOLOR',(0,0),(-1,0),colors.white),
57	#('BACKGROUND',(0,0),(-1,0),colors.black),
58	('INNERGRID', (0,0), (-1,-1), 0.25, colors.black),
59	('BOX', (0,0), (-1,-1), 1, colors.black),
60	]
61
62	FONT_SIZE = 10
63	FONT_COLOR = 'black'
64
65	def trans(text, lang):
66	# shortcut
67	return translate(text, 'waeup.kofa', target_language=lang)
68
69	def formatted_text(text, color=FONT_COLOR, lang='en'):
70	"""Turn `text`, `color` and `size` into an HTML snippet.
71
72	The snippet is suitable for use with reportlab and generating PDFs.
73	Wraps the `text` into a ``<font>`` tag with passed attributes.
74
75	Also non-strings are converted. Raw strings are expected to be
76	utf-8 encoded (usually the case for widgets etc.).
77
78	Finally, a br tag is added if widgets contain div tags
79	which are not supported by reportlab.
80
81	The returned snippet is unicode type.
82	"""
83	if not isinstance(text, unicode):
84	if isinstance(text, basestring):
85	text = text.decode('utf-8')
86	else:
87	text = unicode(text)
88	if text == 'None':
89	text = ''
90	# Very long matriculation numbers need to be wrapped
91	if text.find(' ') == -1 and len(text.split('/')) > 6:
92	text = '/'.join(text.split('/')[:5]) + \
93	'/ ' + '/'.join(text.split('/')[5:])
94	# Mainly for boolean values we need our customized
95	# localisation of the zope domain
96	text = translate(text, 'zope', target_language=lang)
97	text = text.replace('</div>', '<br /></div>')
98	tag1 = u'<font color="%s">' % (color)
99	return tag1 + u'%s</font>' % text
100
101	def generate_student_id():
102	students = grok.getSite()['students']
103	new_id = students.unique_student_id
104	return new_id
105
106	def set_up_widgets(view, ignore_request=False):
107	view.adapters = {}
108	view.widgets = setUpEditWidgets(
109	view.form_fields, view.prefix, view.context, view.request,
110	adapters=view.adapters, for_display=True,
111	ignore_request=ignore_request
112	)
113
114	def render_student_data(studentview, context, omit_fields=(),
115	lang='en', slipname=None, no_passport=False):
116	"""Render student table for an existing frame.
117	"""
118	width, height = A4
119	set_up_widgets(studentview, ignore_request=True)
120	data_left = []
121	data_middle = []
122	style = getSampleStyleSheet()
123	img = getUtility(IExtFileStore).getFileByContext(
124	studentview.context, attr='passport.jpg')
125	if img is None:
126	from waeup.kofa.browser import DEFAULT_PASSPORT_IMAGE_PATH
127	img = open(DEFAULT_PASSPORT_IMAGE_PATH, 'rb')
128	doc_img = Image(img.name, width=4cm, height=4cm, kind='bound')
129	data_left.append([doc_img])
130	#data.append([Spacer(1, 12)])
131
132	f_label = trans(_('Name:'), lang)
133	f_label = Paragraph(f_label, ENTRY1_STYLE)
134	f_text = formatted_text(studentview.context.display_fullname)
135	f_text = Paragraph(f_text, ENTRY1_STYLE)
136	data_middle.append([f_label,f_text])
137
138	for widget in studentview.widgets:
139	if 'name' in widget.name:
140	continue
141	f_label = translate(
142	widget.label.strip(), 'waeup.kofa',
143	target_language=lang)
144	f_label = Paragraph('%s:' % f_label, ENTRY1_STYLE)
145	f_text = formatted_text(widget(), lang=lang)
146	f_text = Paragraph(f_text, ENTRY1_STYLE)
147	data_middle.append([f_label,f_text])
148
149	if getattr(studentview.context, 'certcode', None):
150	if not 'certificate' in omit_fields:
151	f_label = trans(_('Study Course:'), lang)
152	f_label = Paragraph(f_label, ENTRY1_STYLE)
153	f_text = formatted_text(
154	studentview.context['studycourse'].certificate.longtitle)
155	f_text = Paragraph(f_text, ENTRY1_STYLE)
156	data_middle.append([f_label,f_text])
157	if not 'department' in omit_fields:
158	f_label = trans(_('Department:'), lang)
159	f_label = Paragraph(f_label, ENTRY1_STYLE)
160	f_text = formatted_text(
161	studentview.context[
162	'studycourse'].certificate.__parent__.__parent__.longtitle,
163	)
164	f_text = Paragraph(f_text, ENTRY1_STYLE)
165	data_middle.append([f_label,f_text])
166	if not 'faculty' in omit_fields:
167	f_label = trans(_('Faculty:'), lang)
168	f_label = Paragraph(f_label, ENTRY1_STYLE)
169	f_text = formatted_text(
170	studentview.context[
171	'studycourse'].certificate.__parent__.__parent__.__parent__.longtitle,
172	)
173	f_text = Paragraph(f_text, ENTRY1_STYLE)
174	data_middle.append([f_label,f_text])
175	if not 'current_mode' in omit_fields:
176	studymodes_dict = getUtility(IKofaUtils).STUDY_MODES_DICT
177	sm = studymodes_dict[studentview.context.current_mode]
178	f_label = trans(_('Study Mode:'), lang)
179	f_label = Paragraph(f_label, ENTRY1_STYLE)
180	f_text = formatted_text(sm)
181	f_text = Paragraph(f_text, ENTRY1_STYLE)
182	data_middle.append([f_label,f_text])
183	if not 'entry_session' in omit_fields:
184	f_label = trans(_('Entry Session:'), lang)
185	f_label = Paragraph(f_label, ENTRY1_STYLE)
186	entry_session = studentview.context.entry_session
187	entry_session = academic_sessions_vocab.getTerm(entry_session).title
188	f_text = formatted_text(entry_session)
189	f_text = Paragraph(f_text, ENTRY1_STYLE)
190	data_middle.append([f_label,f_text])
191	# Requested by Uniben, does not really make sense
192	if not 'current_level' in omit_fields:
193	f_label = trans(_('Current Level:'), lang)
194	f_label = Paragraph(f_label, ENTRY1_STYLE)
195	current_level = studentview.context['studycourse'].current_level
196	studylevelsource = StudyLevelSource().factory
197	current_level = studylevelsource.getTitle(
198	studentview.context, current_level)
199	f_text = formatted_text(current_level)
200	f_text = Paragraph(f_text, ENTRY1_STYLE)
201	data_middle.append([f_label,f_text])
202	if not 'date_of_birth' in omit_fields:
203	f_label = trans(_('Date of Birth:'), lang)
204	f_label = Paragraph(f_label, ENTRY1_STYLE)
205	date_of_birth = studentview.context.date_of_birth
206	tz = getUtility(IKofaUtils).tzinfo
207	date_of_birth = to_timezone(date_of_birth, tz)
208	if date_of_birth is not None:
209	date_of_birth = date_of_birth.strftime("%d/%m/%Y")
210	f_text = formatted_text(date_of_birth)
211	f_text = Paragraph(f_text, ENTRY1_STYLE)
212	data_middle.append([f_label,f_text])
213
214	if no_passport:
215	table = Table(data_middle,style=SLIP_STYLE)
216	table.hAlign = 'LEFT'
217	return table
218
219	# append QR code to the right
220	if slipname:
221	url = studentview.url(context, slipname)
222	data_right = [[get_qrcode(url, width=70.0)]]
223	table_right = Table(data_right,style=SLIP_STYLE)
224	else:
225	table_right = None
226
227	table_left = Table(data_left,style=SLIP_STYLE)
228	table_middle = Table(data_middle,style=SLIP_STYLE, colWidths=[5cm, 5cm])
229	table = Table([[table_left, table_middle, table_right],],style=SLIP_STYLE)
230	return table
231
232	def render_table_data(tableheader, tabledata, lang='en'):
233	"""Render children table for an existing frame.
234	"""
235	data = []
236	#data.append([Spacer(1, 12)])
237	line = []
238	style = getSampleStyleSheet()
239	for element in tableheader:
240	field = '<strong>%s</strong>' % formatted_text(element[0], lang=lang)
241	field = Paragraph(field, style["Normal"])
242	line.append(field)
243	data.append(line)
244	for ticket in tabledata:
245	line = []
246	for element in tableheader:
247	field = formatted_text(getattr(ticket,element[1],u' '))
248	field = Paragraph(field, style["Normal"])
249	line.append(field)
250	data.append(line)
251	table = Table(data,colWidths=[
252	element[2]*cm for element in tableheader], style=CONTENT_STYLE)
253	return table
254
255	def render_transcript_data(view, tableheader, levels_data, lang='en'):
256	"""Render children table for an existing frame.
257	"""
258	data = []
259	style = getSampleStyleSheet()
260	format_float = getUtility(IKofaUtils).format_float
261	for level in levels_data:
262	level_obj = level['level']
263	tickets = level['tickets_1'] + level['tickets_2'] + level['tickets_3']
264	headerline = []
265	tabledata = []
266	if 'evel' in view.level_dict.get('ticket.level', str(level_obj.level)):
267	subheader = '%s %s, %s' % (
268	trans(_('Session'), lang),
269	view.session_dict[level_obj.level_session],
270	view.level_dict.get('ticket.level', str(level_obj.level)))
271	else:
272	subheader = '%s %s, %s %s' % (
273	trans(_('Session'), lang),
274	view.session_dict[level_obj.level_session],
275	trans(_('Level'), lang),
276	view.level_dict.get(level_obj.level, str(level_obj.level)))
277	data.append(Paragraph(subheader, HEADING_STYLE))
278	for element in tableheader:
279	field = '<strong>%s</strong>' % formatted_text(element[0])
280	field = Paragraph(field, style["Normal"])
281	headerline.append(field)
282	tabledata.append(headerline)
283	for ticket in tickets:
284	ticketline = []
285	for element in tableheader:
286	field = formatted_text(getattr(ticket,element[1],u' '))
287	field = Paragraph(field, style["Normal"])
288	ticketline.append(field)
289	tabledata.append(ticketline)
290	table = Table(tabledata,colWidths=[
291	element[2]*cm for element in tableheader], style=CONTENT_STYLE)
292	data.append(table)
293	sgpa = format_float(level['sgpa'], 2)
294	sgpa = '%s: %s' % (trans('Sessional GPA (rectified)', lang), sgpa)
295	#sgpa = '%s: %.2f' % (trans('Sessional GPA (rectified)', lang), level['sgpa'])
296	data.append(Paragraph(sgpa, style["Normal"]))
297	if getattr(level_obj, 'transcript_remark', None):
298	remark = '%s: %s' % (
299	trans('Transcript Remark', lang),
300	getattr(level_obj, 'transcript_remark'))
301	data.append(Paragraph(remark, style["Normal"]))
302	return data
303
304	def docs_as_flowables(view, lang='en'):
305	"""Create reportlab flowables out of scanned docs.
306	"""
307	# XXX: fix circular import problem
308	from waeup.kofa.browser.fileviewlets import FileManager
309	from waeup.kofa.browser import DEFAULT_IMAGE_PATH
310	style = getSampleStyleSheet()
311	data = []
312
313	# Collect viewlets
314	fm = FileManager(view.context, view.request, view)
315	fm.update()
316	if fm.viewlets:
317	sc_translation = trans(_('Scanned Documents'), lang)
318	data.append(Paragraph(sc_translation, HEADING_STYLE))
319	# Insert list of scanned documents
320	table_data = []
321	for viewlet in fm.viewlets:
322	if viewlet.file_exists:
323	# Show viewlet only if file exists
324	f_label = Paragraph(trans(viewlet.label, lang), ENTRY1_STYLE)
325	img_path = getattr(getUtility(IExtFileStore).getFileByContext(
326	view.context, attr=viewlet.download_name), 'name', None)
327	#f_text = Paragraph(trans(_('(not provided)'),lang), ENTRY1_STYLE)
328	if img_path is None:
329	pass
330	elif not img_path[-4:] in ('.jpg', '.JPG'):
331	# reportlab requires jpg images, I think.
332	f_text = Paragraph('%s (not displayable)' % (
333	viewlet.title,), ENTRY1_STYLE)
334	else:
335	f_text = Image(img_path, width=2cm, height=1cm, kind='bound')
336	table_data.append([f_label, f_text])
337	if table_data:
338	# safety belt; empty tables lead to problems.
339	data.append(Table(table_data, style=SLIP_STYLE))
340	return data
341
342	class StudentsUtils(grok.GlobalUtility):
343	"""A collection of methods subject to customization.
344	"""
345	grok.implements(IStudentsUtils)
346
347	def getReturningData(self, student):
348	""" Define what happens after school fee payment
349	depending on the student's senate verdict.
350	In the base configuration current level is always increased
351	by 100 no matter which verdict has been assigned.
352	"""
353	new_level = student['studycourse'].current_level + 100
354	new_session = student['studycourse'].current_session + 1
355	return new_session, new_level
356
357	def setReturningData(self, student):
358	""" Define what happens after school fee payment
359	depending on the student's senate verdict.
360	This method folllows the same algorithm as `getReturningData` but
361	it also sets the new values.
362	"""
363	new_session, new_level = self.getReturningData(student)
364	try:
365	student['studycourse'].current_level = new_level
366	except ConstraintNotSatisfied:
367	# Do not change level if level exceeds the
368	# certificate's end_level.
369	pass
370	student['studycourse'].current_session = new_session
371	verdict = student['studycourse'].current_verdict
372	student['studycourse'].current_verdict = '0'
373	student['studycourse'].previous_verdict = verdict
374	return
375
376	def _getSessionConfiguration(self, session):
377	try:
378	return grok.getSite()['configuration'][str(session)]
379	except KeyError:
380	return None
381
382	def _isPaymentDisabled(self, p_session, category, student):
383	academic_session = self._getSessionConfiguration(p_session)
384	if category == 'schoolfee' and \
385	'sf_all' in academic_session.payment_disabled:
386	return True
387	return False
388
389	def samePaymentMade(self, student, category, p_item, p_session):
390	for key in student['payments'].keys():
391	ticket = student['payments'][key]
392	if ticket.p_state == 'paid' and\
393	ticket.p_category == category and \
394	ticket.p_item == p_item and \
395	ticket.p_session == p_session:
396	return True
397	return False
398
399	def setPaymentDetails(self, category, student,
400	previous_session, previous_level):
401	"""Create a payment ticket and set the payment data of a
402	student for the payment category specified.
403	"""
404	p_item = u''
405	amount = 0.0
406	if previous_session:
407	if previous_session < student['studycourse'].entry_session:
408	return _('The previous session must not fall below '
409	'your entry session.'), None
410	if category == 'schoolfee':
411	# School fee is always paid for the following session
412	if previous_session > student['studycourse'].current_session:
413	return _('This is not a previous session.'), None
414	else:
415	if previous_session > student['studycourse'].current_session - 1:
416	return _('This is not a previous session.'), None
417	p_session = previous_session
418	p_level = previous_level
419	p_current = False
420	else:
421	p_session = student['studycourse'].current_session
422	p_level = student['studycourse'].current_level
423	p_current = True
424	academic_session = self._getSessionConfiguration(p_session)
425	if academic_session == None:
426	return _(u'Session configuration object is not available.'), None
427	# Determine fee.
428	if category == 'schoolfee':
429	try:
430	certificate = student['studycourse'].certificate
431	p_item = certificate.code
432	except (AttributeError, TypeError):
433	return _('Study course data are incomplete.'), None
434	if previous_session:
435	# Students can pay for previous sessions in all
436	# workflow states. Fresh students are excluded by the
437	# update method of the PreviousPaymentAddFormPage.
438	if previous_level == 100:
439	amount = getattr(certificate, 'school_fee_1', 0.0)
440	else:
441	amount = getattr(certificate, 'school_fee_2', 0.0)
442	else:
443	if student.state == CLEARED:
444	amount = getattr(certificate, 'school_fee_1', 0.0)
445	elif student.state == RETURNING:
446	# In case of returning school fee payment the
447	# payment session and level contain the values of
448	# the session the student has paid for. Payment
449	# session is always next session.
450	p_session, p_level = self.getReturningData(student)
451	academic_session = self._getSessionConfiguration(p_session)
452	if academic_session == None:
453	return _(
454	u'Session configuration object is not available.'
455	), None
456	amount = getattr(certificate, 'school_fee_2', 0.0)
457	elif student.is_postgrad and student.state == PAID:
458	# Returning postgraduate students also pay for the
459	# next session but their level always remains the
460	# same.
461	p_session += 1
462	academic_session = self._getSessionConfiguration(p_session)
463	if academic_session == None:
464	return _(
465	u'Session configuration object is not available.'
466	), None
467	amount = getattr(certificate, 'school_fee_2', 0.0)
468	elif category == 'clearance':
469	try:
470	p_item = student['studycourse'].certificate.code
471	except (AttributeError, TypeError):
472	return _('Study course data are incomplete.'), None
473	amount = academic_session.clearance_fee
474	elif category == 'bed_allocation':
475	p_item = self.getAccommodationDetails(student)['bt']
476	amount = academic_session.booking_fee
477	elif category == 'hostel_maintenance':
478	amount = 0.0
479	bedticket = student['accommodation'].get(
480	str(student.current_session), None)
481	if bedticket is not None and bedticket.bed is not None:
482	p_item = bedticket.bed_coordinates
483	if bedticket.bed.__parent__.maint_fee > 0:
484	amount = bedticket.bed.__parent__.maint_fee
485	else:
486	# fallback
487	amount = academic_session.maint_fee
488	else:
489	return _(u'No bed allocated.'), None
490	elif category == 'transcript':
491	amount = academic_session.transcript_fee
492	elif category == 'transfer':
493	amount = academic_session.transfer_fee
494	elif category == 'late_registration':
495	amount = academic_session.late_registration_fee
496	if amount in (0.0, None):
497	return _('Amount could not be determined.'), None
498	if self.samePaymentMade(student, category, p_item, p_session):
499	return _('This type of payment has already been made.'), None
500	if self._isPaymentDisabled(p_session, category, student):
501	return _('This category of payments has been disabled.'), None
502	payment = createObject(u'waeup.StudentOnlinePayment')
503	timestamp = ("%d" % int(time()*10000))[1:]
504	payment.p_id = "p%s" % timestamp
505	payment.p_category = category
506	payment.p_item = p_item
507	payment.p_session = p_session
508	payment.p_level = p_level
509	payment.p_current = p_current
510	payment.amount_auth = amount
511	return None, payment
512
513	def setBalanceDetails(self, category, student,
514	balance_session, balance_level, balance_amount):
515	"""Create a balance payment ticket and set the payment data
516	as selected by the student.
517	"""
518	p_item = u'Balance'
519	p_session = balance_session
520	p_level = balance_level
521	p_current = False
522	amount = balance_amount
523	academic_session = self._getSessionConfiguration(p_session)
524	if academic_session == None:
525	return _(u'Session configuration object is not available.'), None
526	if amount in (0.0, None) or amount < 0:
527	return _('Amount must be greater than 0.'), None
528	payment = createObject(u'waeup.StudentOnlinePayment')
529	timestamp = ("%d" % int(time()*10000))[1:]
530	payment.p_id = "p%s" % timestamp
531	payment.p_category = category
532	payment.p_item = p_item
533	payment.p_session = p_session
534	payment.p_level = p_level
535	payment.p_current = p_current
536	payment.amount_auth = amount
537	return None, payment
538
539	def increaseMatricInteger(self, student):
540	"""Increase counter for matric numbers.
541	This counter can be a centrally stored attribute or an attribute of
542	faculties, departments or certificates. In the base package the counter
543	is as an attribute of the site configuration container.
544	"""
545	grok.getSite()['configuration'].next_matric_integer += 1
546	return
547
548	def constructMatricNumber(self, student):
549	"""Fetch the matric number counter which fits the student and
550	construct the new matric number of the student.
551	In the base package the counter is returned which is as an attribute
552	of the site configuration container.
553	"""
554	next_integer = grok.getSite()['configuration'].next_matric_integer
555	if next_integer == 0:
556	return _('Matriculation number cannot be set.'), None
557	return None, unicode(next_integer)
558
559	def setMatricNumber(self, student):
560	"""Set matriculation number of student. If the student's matric number
561	is unset a new matric number is
562	constructed according to the matriculation number construction rules
563	defined in the `constructMatricNumber` method. The new matric number is
564	set, the students catalog updated. The corresponding matric number
565	counter is increased by one.
566
567	This method is tested but not used in the base package. It can
568	be used in custom packages by adding respective views
569	and by customizing `increaseMatricInteger` and `constructMatricNumber`
570	according to the university's matriculation number construction rules.
571
572	The method can be disabled by setting the counter to zero.
573	"""
574	if student.matric_number is not None:
575	return _('Matriculation number already set.'), None
576	if student.certcode is None:
577	return _('No certificate assigned.'), None
578	error, matric_number = self.constructMatricNumber(student)
579	if error:
580	return error, None
581	try:
582	student.matric_number = matric_number
583	except MatNumNotInSource:
584	return _('Matriculation number %s exists.' % matric_number), None
585	notify(grok.ObjectModifiedEvent(student))
586	self.increaseMatricInteger(student)
587	return None, matric_number
588
589	def getAccommodationDetails(self, student):
590	"""Determine the accommodation data of a student.
591	"""
592	d = {}
593	d['error'] = u''
594	hostels = grok.getSite()['hostels']
595	d['booking_session'] = hostels.accommodation_session
596	d['allowed_states'] = hostels.accommodation_states
597	d['startdate'] = hostels.startdate
598	d['enddate'] = hostels.enddate
599	d['expired'] = hostels.expired
600	# Determine bed type
601	studycourse = student['studycourse']
602	certificate = getattr(studycourse,'certificate',None)
603	entry_session = studycourse.entry_session
604	current_level = studycourse.current_level
605	if None in (entry_session, current_level, certificate):
606	return d
607	end_level = certificate.end_level
608	if current_level == 10:
609	bt = 'pr'
610	elif entry_session == grok.getSite()['hostels'].accommodation_session:
611	bt = 'fr'
612	elif current_level >= end_level:
613	bt = 'fi'
614	else:
615	bt = 're'
616	if student.sex == 'f':
617	sex = 'female'
618	else:
619	sex = 'male'
620	special_handling = 'regular'
621	d['bt'] = u'%s_%s_%s' % (special_handling,sex,bt)
622	return d
623
624	def checkAccommodationRequirements(self, student, acc_details):
625	if acc_details.get('expired', False):
626	startdate = acc_details.get('startdate')
627	enddate = acc_details.get('enddate')
628	if startdate and enddate:
629	tz = getUtility(IKofaUtils).tzinfo
630	startdate = to_timezone(
631	startdate, tz).strftime("%d/%m/%Y %H:%M:%S")
632	enddate = to_timezone(
633	enddate, tz).strftime("%d/%m/%Y %H:%M:%S")
634	return _("Outside booking period: ${a} - ${b}",
635	mapping = {'a': startdate, 'b': enddate})
636	else:
637	return _("Outside booking period.")
638	if not acc_details.get('bt'):
639	return _("Your data are incomplete.")
640	if not student.state in acc_details['allowed_states']:
641	return _("You are in the wrong registration state.")
642	if student['studycourse'].current_session != acc_details[
643	'booking_session']:
644	return _('Your current session does not '
645	'match accommodation session.')
646	bsession = str(acc_details['booking_session'])
647	if bsession in student['accommodation'].keys() \
648	and not 'booking expired' in \
649	student['accommodation'][bsession].bed_coordinates:
650	return _('You already booked a bed space in '
651	'current accommodation session.')
652	return
653
654	def selectBed(self, available_beds, desired_hostel=None):
655	"""Select a bed from a filtered list of available beds.
656	In the base configuration beds are sorted by the sort id
657	of the hostel and the bed number. The first bed found in
658	this sorted list is taken.
659	"""
660	sorted_beds = sorted(available_beds,
661	key=lambda bed: 1000 * bed.__parent__.sort_id + bed.bed_number)
662	if desired_hostel and desired_hostel != 'no':
663	# Filter desired hostel beds
664	filtered_beds = [bed for bed in sorted_beds
665	if bed.bed_id.startswith(desired_hostel)]
666	if not filtered_beds:
667	return
668	return filtered_beds[0]
669	return sorted_beds[0]
670
671	def _admissionText(self, student, portal_language):
672	inst_name = grok.getSite()['configuration'].name
673	text = trans(_(
674	'This is to inform you that you have been provisionally'
675	' admitted into ${a} as follows:', mapping = {'a': inst_name}),
676	portal_language)
677	return text
678
679	def renderPDFAdmissionLetter(self, view, student=None, omit_fields=(),
680	pre_text=None, post_text=None,):
681	"""Render pdf admission letter.
682	"""
683	if student is None:
684	return
685	style = getSampleStyleSheet()
686	creator = self.getPDFCreator(student)
687	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
688	data = []
689	doc_title = view.label
690	author = '%s (%s)' % (view.request.principal.title,
691	view.request.principal.id)
692	footer_text = view.label.split('\n')
693	if len(footer_text) > 1:
694	# We can add a department in first line
695	footer_text = footer_text[1]
696	else:
697	# Only the first line is used for the footer
698	footer_text = footer_text[0]
699	if getattr(student, 'student_id', None) is not None:
700	footer_text = "%s - %s - " % (student.student_id, footer_text)
701
702	# Text before student data
703	if pre_text is None:
704	html = format_html(self._admissionText(student, portal_language))
705	else:
706	html = format_html(pre_text)
707	if html:
708	data.append(Paragraph(html, NOTE_STYLE))
709	data.append(Spacer(1, 20))
710
711	# Student data
712	data.append(render_student_data(view, student,
713	omit_fields, lang=portal_language,
714	slipname='admission_slip.pdf'))
715
716	# Text after student data
717	data.append(Spacer(1, 20))
718	if post_text is None:
719	datelist = student.history.messages[0].split()[0].split('-')
720	creation_date = u'%s/%s/%s' % (datelist[2], datelist[1], datelist[0])
721	post_text = trans(_(
722	'Your Kofa student record was created on ${a}.',
723	mapping = {'a': creation_date}),
724	portal_language)
725	#html = format_html(post_text)
726	#data.append(Paragraph(html, NOTE_STYLE))
727
728	# Create pdf stream
729	view.response.setHeader(
730	'Content-Type', 'application/pdf')
731	pdf_stream = creator.create_pdf(
732	data, None, doc_title, author=author, footer=footer_text,
733	note=post_text)
734	return pdf_stream
735
736	def getPDFCreator(self, context):
737	"""Get a pdf creator suitable for `context`.
738	The default implementation always returns the default creator.
739	"""
740	return getUtility(IPDFCreator)
741
742	def renderPDF(self, view, filename='slip.pdf', student=None,
743	studentview=None,
744	tableheader=[], tabledata=[],
745	note=None, signatures=None, sigs_in_footer=(),
746	show_scans=True, topMargin=1.5,
747	omit_fields=()):
748	"""Render pdf slips for various pages (also some pages
749	in the applicants module).
750	"""
751	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
752	# XXX: tell what the different parameters mean
753	style = getSampleStyleSheet()
754	creator = self.getPDFCreator(student)
755	data = []
756	doc_title = view.label
757	author = '%s (%s)' % (view.request.principal.title,
758	view.request.principal.id)
759	footer_text = view.label.split('\n')
760	if len(footer_text) > 1:
761	# We can add a department in first line, second line is used
762	footer_text = footer_text[1]
763	else:
764	# Only the first line is used for the footer
765	footer_text = footer_text[0]
766	if getattr(student, 'student_id', None) is not None:
767	footer_text = "%s - %s - " % (student.student_id, footer_text)
768
769	# Insert student data table
770	if student is not None:
771	bd_translation = trans(_('Base Data'), portal_language)
772	data.append(Paragraph(bd_translation, HEADING_STYLE))
773	data.append(render_student_data(
774	studentview, view.context, omit_fields, lang=portal_language,
775	slipname=filename))
776
777	# Insert widgets
778	if view.form_fields:
779	data.append(Paragraph(view.title, HEADING_STYLE))
780	separators = getattr(self, 'SEPARATORS_DICT', {})
781	table = creator.getWidgetsTable(
782	view.form_fields, view.context, None, lang=portal_language,
783	separators=separators)
784	data.append(table)
785
786	# Insert scanned docs
787	if show_scans:
788	data.extend(docs_as_flowables(view, portal_language))
789
790	# Insert history
791	if filename == 'clearance_slip.pdf':
792	hist_translation = trans(_('Workflow History'), portal_language)
793	data.append(Paragraph(hist_translation, HEADING_STYLE))
794	data.extend(creator.fromStringList(student.history.messages))
795
796	# Insert content tables (optionally on second page)
797	if hasattr(view, 'tabletitle'):
798	for i in range(len(view.tabletitle)):
799	if tabledata[i] and tableheader[i]:
800	#data.append(PageBreak())
801	#data.append(Spacer(1, 20))
802	data.append(Paragraph(view.tabletitle[i], HEADING_STYLE))
803	data.append(Spacer(1, 8))
804	contenttable = render_table_data(tableheader[i],tabledata[i])
805	data.append(contenttable)
806
807	# Insert signatures
808	# XXX: We are using only sigs_in_footer in waeup.kofa, so we
809	# do not have a test for the following lines.
810	if signatures and not sigs_in_footer:
811	data.append(Spacer(1, 20))
812	# Render one signature table per signature to
813	# get date and signature in line.
814	for signature in signatures:
815	signaturetables = get_signature_tables(signature)
816	data.append(signaturetables[0])
817
818	view.response.setHeader(
819	'Content-Type', 'application/pdf')
820	try:
821	pdf_stream = creator.create_pdf(
822	data, None, doc_title, author=author, footer=footer_text,
823	note=note, sigs_in_footer=sigs_in_footer, topMargin=topMargin)
824	except IOError:
825	view.flash('Error in image file.')
826	return view.redirect(view.url(view.context))
827	except LayoutError, err:
828	view.flash(
829	'PDF file could not be created. Reportlab error message: %s'
830	% escape(err.message),
831	type="danger")
832	return view.redirect(view.url(view.context))
833	return pdf_stream
834
835	def GPABoundaries(self, faccode=None, depcode=None, certcode=None):
836	return ((1, 'Fail'),
837	(1.5, 'Pass'),
838	(2.4, '3rd Class'),
839	(3.5, '2nd Class Lower'),
840	(4.5, '2nd Class Upper'),
841	(5, '1st Class'))
842
843	def getClassFromCGPA(self, gpa, student):
844	"""Determine the class of degree. In some custom packages
845	this class depends on e.g. the entry session of the student. In the
846	base package, it does not.
847	"""
848	if gpa < self.GPABoundaries()[0][0]:
849	return 0, self.GPABoundaries()[0][1]
850	if gpa < self.GPABoundaries()[1][0]:
851	return 1, self.GPABoundaries()[1][1]
852	if gpa < self.GPABoundaries()[2][0]:
853	return 2, self.GPABoundaries()[2][1]
854	if gpa < self.GPABoundaries()[3][0]:
855	return 3, self.GPABoundaries()[3][1]
856	if gpa < self.GPABoundaries()[4][0]:
857	return 4, self.GPABoundaries()[4][1]
858	if gpa <= self.GPABoundaries()[5][0]:
859	return 5, self.GPABoundaries()[5][1]
860	return
861
862	def getDegreeClassNumber(self, level_obj):
863	"""Get degree class number (used for SessionResultsPresentation
864	reports).
865	"""
866	if level_obj.gpa_params[1] == 0:
867	# No credits weighted
868	return 6
869	return self.getClassFromCGPA(
870	level_obj.cumulative_params[0], level_obj.student)[0]
871
872	def _saveTranscriptPDF(self, student, transcript):
873	"""Create a transcript PDF file and store it in student folder.
874	"""
875	file_store = getUtility(IExtFileStore)
876	file_id = IFileStoreNameChooser(student).chooseName(
877	attr="final_transcript.pdf")
878	file_store.createFile(file_id, StringIO(transcript))
879	return
880
881	def renderPDFTranscript(self, view, filename='transcript.pdf',
882	student=None,
883	studentview=None,
884	note=None,
885	signatures=(),
886	sigs_in_footer=(),
887	digital_sigs=(),
888	show_scans=True, topMargin=1.5,
889	omit_fields=(),
890	tableheader=None,
891	no_passport=False,
892	save_file=False):
893	"""Render pdf slip of a transcripts.
894	"""
895	portal_language = getUtility(IKofaUtils).PORTAL_LANGUAGE
896	# XXX: tell what the different parameters mean
897	style = getSampleStyleSheet()
898	creator = self.getPDFCreator(student)
899	data = []
900	doc_title = view.label
901	author = '%s (%s)' % (view.request.principal.title,
902	view.request.principal.id)
903	footer_text = view.label.split('\n')
904	if len(footer_text) > 2:
905	# We can add a department in first line
906	footer_text = footer_text[1]
907	else:
908	# Only the first line is used for the footer
909	footer_text = footer_text[0]
910	if getattr(student, 'student_id', None) is not None:
911	footer_text = "%s - %s - " % (student.student_id, footer_text)
912
913	# Insert student data table
914	if student is not None:
915	#bd_translation = trans(_('Base Data'), portal_language)
916	#data.append(Paragraph(bd_translation, HEADING_STYLE))
917	data.append(render_student_data(
918	studentview, view.context,
919	omit_fields, lang=portal_language,
920	slipname=filename,
921	no_passport=no_passport))
922
923	transcript_data = view.context.getTranscriptData()
924	levels_data = transcript_data[0]
925
926	contextdata = []
927	f_label = trans(_('Course of Study:'), portal_language)
928	f_label = Paragraph(f_label, ENTRY1_STYLE)
929	f_text = formatted_text(view.context.certificate.longtitle)
930	f_text = Paragraph(f_text, ENTRY1_STYLE)
931	contextdata.append([f_label,f_text])
932
933	f_label = trans(_('Faculty:'), portal_language)
934	f_label = Paragraph(f_label, ENTRY1_STYLE)
935	f_text = formatted_text(
936	view.context.certificate.__parent__.__parent__.__parent__.longtitle)
937	f_text = Paragraph(f_text, ENTRY1_STYLE)
938	contextdata.append([f_label,f_text])
939
940	f_label = trans(_('Department:'), portal_language)
941	f_label = Paragraph(f_label, ENTRY1_STYLE)
942	f_text = formatted_text(
943	view.context.certificate.__parent__.__parent__.longtitle)
944	f_text = Paragraph(f_text, ENTRY1_STYLE)
945	contextdata.append([f_label,f_text])
946
947	f_label = trans(_('Entry Session:'), portal_language)
948	f_label = Paragraph(f_label, ENTRY1_STYLE)
949	f_text = formatted_text(
950	view.session_dict.get(view.context.entry_session))
951	f_text = Paragraph(f_text, ENTRY1_STYLE)
952	contextdata.append([f_label,f_text])
953
954	f_label = trans(_('Entry Mode:'), portal_language)
955	f_label = Paragraph(f_label, ENTRY1_STYLE)
956	f_text = formatted_text(view.studymode_dict.get(
957	view.context.entry_mode))
958	f_text = Paragraph(f_text, ENTRY1_STYLE)
959	contextdata.append([f_label,f_text])
960
961	f_label = trans(_('Cumulative GPA:'), portal_language)
962	f_label = Paragraph(f_label, ENTRY1_STYLE)
963	format_float = getUtility(IKofaUtils).format_float
964	cgpa = format_float(transcript_data[1], 3)
965	f_text = formatted_text('%s (%s)' % (
966	cgpa, self.getClassFromCGPA(transcript_data[1], student)[1]))
967	f_text = Paragraph(f_text, ENTRY1_STYLE)
968	contextdata.append([f_label,f_text])
969
970	contexttable = Table(contextdata,style=SLIP_STYLE)
971	data.append(contexttable)
972
973	transcripttables = render_transcript_data(
974	view, tableheader, levels_data, lang=portal_language)
975	data.extend(transcripttables)
976
977	# Insert signatures
978	# XXX: We are using only sigs_in_footer in waeup.kofa, so we
979	# do not have a test for the following lines.
980	if signatures and not sigs_in_footer:
981	data.append(Spacer(1, 20))
982	# Render one signature table per signature to
983	# get date and signature in line.
984	for signature in signatures:
985	signaturetables = get_signature_tables(signature)
986	data.append(signaturetables[0])
987
988	# Insert digital signatures
989	if digital_sigs:
990	data.append(Spacer(1, 20))
991	sigs = digital_sigs.split('\n')
992	for sig in sigs:
993	data.append(Paragraph(sig, NOTE_STYLE))
994
995	view.response.setHeader(
996	'Content-Type', 'application/pdf')
997	try:
998	pdf_stream = creator.create_pdf(
999	data, None, doc_title, author=author, footer=footer_text,
1000	note=note, sigs_in_footer=sigs_in_footer, topMargin=topMargin)
1001	except IOError:
1002	view.flash(_('Error in image file.'))
1003	return view.redirect(view.url(view.context))
1004	if save_file:
1005	self._saveTranscriptPDF(student, pdf_stream)
1006	return
1007	return pdf_stream
1008
1009	def renderPDFCourseticketsOverview(
1010	self, view, session, data, lecturers, orientation,
1011	title_length, note):
1012	"""Render pdf slip of course tickets for a lecturer.
1013	"""
1014	filename = 'coursetickets_%s_%s_%s.pdf' % (
1015	view.context.code, session, view.request.principal.id)
1016	session = academic_sessions_vocab.getTerm(session).title
1017	creator = getUtility(IPDFCreator, name=orientation)
1018	style = getSampleStyleSheet()
1019	pdf_data = []
1020	pdf_data += [Paragraph(
1021	translate(_('<b>Lecturer(s): ${a}</b>',
1022	mapping = {'a':lecturers})), style["Normal"]),]
1023	pdf_data += [Paragraph(
1024	translate(_('<b>Credits: ${a}</b>',
1025	mapping = {'a':view.context.credits})), style["Normal"]),]
1026	# Not used in base package.
1027	if data[1]:
1028	pdf_data += [Paragraph(
1029	translate(_('<b>${a}</b>',
1030	mapping = {'a':data[1][0]})), style["Normal"]),]
1031	pdf_data += [Paragraph(
1032	translate(_('<b>${a}</b>',
1033	mapping = {'a':data[1][1]})), style["Normal"]),]
1034
1035	pdf_data += [Paragraph(
1036	translate(_('<b>Total Students: ${a}</b>',
1037	mapping = {'a':data[1][2]})), style["Normal"]),]
1038	pdf_data += [Paragraph(
1039	translate(_('<b>Total Pass: ${a} (${b}%)</b>',
1040	mapping = {'a':data[1][3],'b':data[1][4]})), style["Normal"]),]
1041	pdf_data += [Paragraph(
1042	translate(_('<b>Total Fail: ${a} (${b}%)</b>',
1043	mapping = {'a':data[1][5],'b':data[1][6]})), style["Normal"]),]
1044	pdf_data.append(Spacer(1, 20))
1045	colWidths = [None] * len(data[0][0])
1046	pdf_data += [Table(data[0], colWidths=colWidths, style=CONTENT_STYLE)]
1047	# Process title if too long
1048	title = " ".join(view.context.title.split())
1049	ct = textwrap.fill(title, title_length)
1050	ft = title
1051	if len(textwrap.wrap(title, title_length)) > 1:
1052	ft = textwrap.wrap(title, title_length)[0] + ' ...'
1053	doc_title = translate(_('${a} (${b})\nAcademic Session ${d}',
1054	mapping = {'a':ct,
1055	'b':view.context.code,
1056	'd':session}))
1057	footer_title = translate(_('${a} (${b}) - ${d}',
1058	mapping = {'a':ft,
1059	'b':view.context.code,
1060	'd':session}))
1061	author = '%s (%s)' % (view.request.principal.title,
1062	view.request.principal.id)
1063	view.response.setHeader(
1064	'Content-Type', 'application/pdf')
1065	view.response.setHeader(
1066	'Content-Disposition:', 'attachment; filename="%s' % filename)
1067	pdf_stream = creator.create_pdf(
1068	pdf_data, None, doc_title, author, footer_title + ' -', note
1069	)
1070	return pdf_stream
1071
1072	def warnCreditsOOR(self, studylevel, course=None):
1073	"""Return message if credits are out of range. In the base
1074	package only maximum credits is set.
1075	"""
1076	if course and studylevel.total_credits + course.credits > 50:
1077	return _('Maximum credits exceeded.')
1078	elif studylevel.total_credits > 50:
1079	return _('Maximum credits exceeded.')
1080	return
1081
1082	def getBedCoordinates(self, bedticket):
1083	"""Return descriptive bed coordinates.
1084	This method can be used to customize the `display_coordinates`
1085	property method in order to display a
1086	customary description of the bed space.
1087	"""
1088	return bedticket.bed_coordinates
1089
1090	def clearance_disabled_message(self, student):
1091	"""Render message if clearance is disabled.
1092	"""
1093	try:
1094	session_config = grok.getSite()[
1095	'configuration'][str(student.current_session)]
1096	except KeyError:
1097	return _('Session configuration object is not available.')
1098	if not session_config.clearance_enabled:
1099	return _('Clearance is disabled for this session.')
1100	return None
1101
1102	#: A dictionary which maps widget names to headlines. The headline
1103	#: is rendered in forms and on pdf slips above the respective
1104	#: display or input widget. There are no separating headlines
1105	#: in the base package.
1106	SEPARATORS_DICT = {}
1107
1108	#: A tuple containing names of file upload viewlets which are not shown
1109	#: on the `StudentClearanceManageFormPage`. Nothing is being skipped
1110	#: in the base package. This attribute makes only sense, if intermediate
1111	#: custom packages are being used, like we do for all Nigerian portals.
1112	SKIP_UPLOAD_VIEWLETS = ()
1113
1114	#: A tuple containing the names of registration states in which changing of
1115	#: passport pictures is allowed.
1116	PORTRAIT_CHANGE_STATES = (ADMITTED,)
1117
1118	#: A tuple containing all exporter names referring to students or
1119	#: subobjects thereof.
1120	STUDENT_EXPORTER_NAMES = ('students', 'studentstudycourses',
1121	'studentstudylevels', 'coursetickets',
1122	'studentpayments', 'studentunpaidpayments',
1123	'bedtickets', 'sfpaymentsoverview', 'sessionpaymentsoverview',
1124	'studylevelsoverview', 'combocard', 'bursary',
1125	'accommodationpayments')
1126
1127	#: A tuple containing all exporter names needed for backing
1128	#: up student data
1129	STUDENT_BACKUP_EXPORTER_NAMES = ('students', 'studentstudycourses',
1130	'studentstudylevels', 'coursetickets',
1131	'studentpayments', 'bedtickets')
1132
1133	#: A prefix used when generating new student ids. Each student id will
1134	#: start with this string. The default is 'K' for Kofa.
1135	STUDENT_ID_PREFIX = u'K'

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