1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
from django.contrib.auth.decorators import login_required
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponse, Http404
from django.core.exceptions import PermissionDenied
from django.db import transaction
from django.db.models import Count, Sum, F, Func
from datetime import datetime
import json
from postgresqleu.util.db import exec_to_dict
from postgresqleu.util.request import get_int_or_error
from .models import ConferenceRegistration
from .models import VolunteerSlot, VolunteerAssignment
from .util import send_conference_notification_template, get_conference_or_404
def _check_admin(request, conference):
if request.user.is_superuser:
return True
else:
return conference.administrators.filter(pk=request.user.id).exists() or conference.series.administrators.filter(pk=request.user.id).exists()
def _get_conference_and_reg(request, urlname):
conference = get_conference_or_404(urlname)
is_admin = _check_admin(request, conference)
if is_admin:
reg = ConferenceRegistration.objects.get(conference=conference, attendee=request.user)
else:
try:
reg = conference.volunteers.get(attendee=request.user)
except ConferenceRegistration.DoesNotExist:
raise Http404("Volunteer entry not found")
return (conference, is_admin, reg)
def send_volunteer_notification(conference, assignment, subject, template):
if not conference.notifyvolunteerstatus:
return
# No filter aggregates in our version of Django, so direct SQL it is
pending = exec_to_dict("SELECT count(*) FILTER (WHERE NOT org_confirmed) AS admin, count(*) FILTER (WHERE NOT vol_confirmed) AS volunteer FROM confreg_volunteerassignment a INNER JOIN confreg_volunteerslot s ON s.id=a.slot_id WHERE s.conference_id=%(confid)s", {
'confid': conference.id,
})[0]
send_conference_notification_template(
conference,
subject,
'confreg/mail/{}'.format(template), {
'conference': conference,
'assignment': assignment,
'pending': pending,
},
)
def _get_volunteer_stats(conference):
stats = ConferenceRegistration.objects.filter(conference=conference) \
.filter(volunteers_set=conference) \
.only('firstname', 'lastname') \
.annotate(num_assignments=Count('volunteerassignment')) \
.annotate(total_time=Sum(Func(
Func(F('volunteerassignment__slot__timerange'), function='upper'),
Func(F('volunteerassignment__slot__timerange'), function='lower'),
function='age'))) \
.order_by('lastname', 'firstname')
return [{
'name': r.fullname,
'count': r.num_assignments,
'time': str(r.total_time or '0:00:00'),
'seconds': int(r.total_time.total_seconds()) if r.total_time else 0,
} for r in stats]
def _slot_return_data(slot):
return {
'id': slot.id,
'max_staff': slot.max_staff,
'min_staff': slot.min_staff,
'assignments': [{
'id': a.id,
'volid': a.reg.id,
'volunteer': a.reg.fullname,
'vol_confirmed': a.vol_confirmed,
'org_confirmed': a.org_confirmed,
} for a in slot.volunteerassignment_set.all()],
}
@login_required
@transaction.atomic
def volunteerschedule_api(request, urlname, adm=False):
try:
(conference, can_admin, reg) = _get_conference_and_reg(request, urlname)
except ConferenceRegistration.DoesNotExist:
raise PermissionDenied()
is_admin = can_admin and adm
if request.method == 'GET':
# GET just always returns the complete volunteer schedule
slots = VolunteerSlot.objects.prefetch_related('volunteerassignment_set', 'volunteerassignment_set__reg').filter(conference=conference)
return HttpResponse(json.dumps({
'slots': [_slot_return_data(slot) for slot in slots],
'volunteers': [{
'id': vol.id,
'name': vol.fullname,
} for vol in conference.volunteers.all().order_by('firstname', 'lastname')],
'meta': {
'isadmin': is_admin,
'isvolunteer': conference.volunteers.filter(pk=reg.pk).exists(),
'regid': reg.id,
},
'stats': _get_volunteer_stats(conference),
}), content_type='application/json')
if request.method != 'POST':
raise Http404()
if 'op' not in request.POST:
raise Http404()
slotid = get_int_or_error(request.POST, 'slotid')
volid = get_int_or_error(request.POST, 'volid')
# We should always have a valid slot
slot = get_object_or_404(VolunteerSlot, conference=conference, pk=slotid)
code = None
err = None
if request.POST['op'] == 'signup':
if volid != 0:
raise PermissionDenied("Invalid post data")
code, err = _signup(request, conference, reg, is_admin, slot)
elif request.POST['op'] == 'remove':
code, err = _remove(request, conference, reg, is_admin, slot, volid)
elif request.POST['op'] == 'confirm':
code, err = _confirm(request, conference, reg, is_admin, slot, volid)
elif request.POST['op'] == 'add':
code, err = _add(request, conference, reg, is_admin, slot, volid)
else:
raise Http404()
if err:
return HttpResponse(
json.dumps({'err': err}),
content_type='application/json',
status=code,
)
# Re-query the database to pick up any changes, and return the complete object
slot = VolunteerSlot.objects.prefetch_related('volunteerassignment_set', 'volunteerassignment_set__reg').filter(conference=conference, pk=slot.pk)[0]
return HttpResponse(json.dumps({
'err': None,
'slot': _slot_return_data(slot),
'stats': _get_volunteer_stats(conference),
}), content_type='application/json')
@login_required
def volunteerschedule(request, urlname, adm=False):
try:
(conference, can_admin, reg) = _get_conference_and_reg(request, urlname)
except ConferenceRegistration.DoesNotExist:
return HttpResponse("Must be registered for conference to view volunteer schedule")
is_admin = can_admin and adm
slots = VolunteerSlot.objects.filter(conference=conference).order_by('timerange', 'title')
return render(request, 'confreg/volunteer_schedule.html', {
'basetemplate': is_admin and 'confreg/confadmin_base.html' or 'confreg/volunteer_base.html',
'conference': conference,
'admin': is_admin,
'can_admin': can_admin,
'reg': reg,
'slots': slots,
'helplink': 'volunteers',
})
def _signup(request, conference, reg, adm, slot):
if VolunteerAssignment.objects.filter(slot=slot, reg=reg).exists():
return 409, "Already a volunteer for selected slot"
elif slot.countvols >= slot.max_staff:
return 409, "Volunteer slot is already full"
elif VolunteerAssignment.objects.filter(reg=reg, slot__timerange__overlap=slot.timerange).exists():
return 400, "Cannot sign up for an overlapping slot"
elif not conference.volunteers.filter(pk=reg.pk).exists():
return 400, "You are not a registered volunteer for this conference"
else:
a = VolunteerAssignment(slot=slot, reg=reg, vol_confirmed=True, org_confirmed=False)
a.save()
send_volunteer_notification(conference, a, 'Volunteer signed up', 'admin_notify_volunteer_signup.txt')
return 200, None
def _add(request, conference, reg, adm, slot, volid):
addreg = get_object_or_404(ConferenceRegistration, conference=conference, id=volid)
if VolunteerAssignment.objects.filter(slot=slot, reg=addreg).exists():
return 409, "Already a volunteer for selected slot"
elif slot.countvols >= slot.max_staff:
return 409, "Volunteer slot is already full"
elif VolunteerAssignment.objects.filter(reg=addreg, slot__timerange__overlap=slot.timerange).exists():
return 400, "Cannot add to an overlapping slot"
else:
VolunteerAssignment(slot=slot, reg=addreg, vol_confirmed=False, org_confirmed=True).save()
return 200, None
def _remove(request, conference, reg, is_admin, slot, aid):
if is_admin:
a = get_object_or_404(VolunteerAssignment, slot=slot, id=aid)
else:
a = get_object_or_404(VolunteerAssignment, slot=slot, reg=reg, id=aid)
if a.org_confirmed and not is_admin:
return 403, "Cannot remove a confirmed assignment. Please contact the volunteer schedule coordinator for manual processing."
else:
a.delete()
return 200, None
def _confirm(request, conference, reg, is_admin, slot, aid):
if is_admin:
# Admins can make organization confirms
a = get_object_or_404(VolunteerAssignment, slot=slot, id=aid)
if a.org_confirmed:
return 209, "Assignment already confirmed"
else:
a.org_confirmed = True
a.save()
return 200, None
else:
# Regular users can confirm their own sessions only
a = get_object_or_404(VolunteerAssignment, slot=slot, reg=reg, id=aid)
if a.vol_confirmed:
return 209, "Assignment already confirmed"
else:
a.vol_confirmed = True
a.save()
send_volunteer_notification(conference, a, 'Volunteer slot confirmed', 'admin_notify_volunteer_confirmed.txt')
return 200, None
def ical(request, urlname, token):
conference = get_conference_or_404(urlname)
reg = get_object_or_404(ConferenceRegistration, regtoken=token)
assignments = VolunteerAssignment.objects.filter(reg=reg).order_by('slot__timerange')
resp = render(request, 'confreg/volunteer_schedule.ical', {
'conference': conference,
'assignments': assignments,
'now': datetime.utcnow(),
}, content_type='text/calendar')
resp['Content-Disposition'] = 'attachment; filename="{}_volunteer.ical"'.format(conference.urlname)
return resp
|
