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annotate gpp/messages/views.py @ 567:0a8e6a9ccf53

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Tweaks to the contests application: show the winners on the list page. Minor presentation changes on the detail template.
author Brian Neal <bgneal@gmail.com>
date Wed, 07 Mar 2012 18:12:02 -0600
parents 4b9970ad0edb
children 7cec8d6f9581
rev   line source
bgneal@425 1 """
bgneal@425 2 Views for the messages application.
bgneal@425 3
bgneal@425 4 """
bgneal@425 5 import datetime
bgneal@425 6
bgneal@425 7 from django.contrib.auth.decorators import login_required
bgneal@428 8 from django.contrib.auth.models import User
bgneal@436 9 from django.contrib import messages as django_messages
bgneal@425 10 from django.core.paginator import Paginator, EmptyPage, InvalidPage
bgneal@425 11 from django.core.urlresolvers import reverse
bgneal@425 12 from django.http import HttpResponse
bgneal@425 13 from django.http import HttpResponseForbidden
bgneal@425 14 from django.http import HttpResponseNotAllowed
bgneal@425 15 from django.shortcuts import get_object_or_404
bgneal@425 16 from django.shortcuts import render
bgneal@425 17 import django.utils.simplejson as json
bgneal@425 18
bgneal@425 19 from messages.models import Message, Options
bgneal@425 20 from messages.forms import OptionsForm, ComposeForm
bgneal@566 21 from messages.utils import reply_subject
bgneal@436 22 from messages import MSG_BOX_LIMIT
bgneal@566 23 from core.functions import quote_message
bgneal@425 24
bgneal@425 25
bgneal@436 26 MSGS_PER_PAGE = 20 # message pagination value
bgneal@425 27
bgneal@436 28 # This must match the jQuery UI tab control
bgneal@425 29 TAB_INDICES = {
bgneal@425 30 'inbox': 0,
bgneal@425 31 'compose': 1,
bgneal@425 32 'outbox': 2,
bgneal@425 33 'trash': 3,
bgneal@425 34 'options': 4,
bgneal@425 35 }
bgneal@425 36
bgneal@425 37
bgneal@425 38 def _get_page(request):
bgneal@425 39 try:
bgneal@425 40 n = int(request.GET.get('page', '1'))
bgneal@425 41 except ValueError:
bgneal@425 42 n = 1
bgneal@425 43 return n
bgneal@425 44
bgneal@425 45
bgneal@436 46 def _quota_check(box_name, count, request):
bgneal@436 47 """
bgneal@436 48 Checks the message box count against MSG_BOX_LIMIT.
bgneal@436 49 Emits a message to the user if the quota is exceeded.
bgneal@441 50
bgneal@436 51 """
bgneal@436 52 if count >= MSG_BOX_LIMIT:
bgneal@436 53 django_messages.warning(request,
bgneal@436 54 "Your %s is full. Please delete some messages." % box_name)
bgneal@436 55
bgneal@436 56
bgneal@425 57 @login_required
bgneal@425 58 def index(request, tab=None):
bgneal@425 59 """
bgneal@425 60 This function displays the base tabbed private messages view.
bgneal@425 61
bgneal@425 62 """
bgneal@425 63 tab_index = TAB_INDICES[tab] if tab else 0
bgneal@425 64 return render(request, 'messages/tabbed_base.html', {
bgneal@425 65 'tab': tab_index,
bgneal@429 66 'unread_count': Message.objects.unread_count(request.user),
bgneal@425 67 })
bgneal@425 68
bgneal@425 69
bgneal@428 70 @login_required
bgneal@428 71 def compose_to(request, receiver):
bgneal@428 72 """
bgneal@428 73 This function displays the base tabbed private messages view,
bgneal@428 74 and configures it to display the compose PM tab for the given
bgneal@428 75 receiver.
bgneal@428 76
bgneal@428 77 """
bgneal@428 78 user = get_object_or_404(User, username=receiver)
bgneal@428 79 tab_index = TAB_INDICES['compose']
bgneal@428 80 return render(request, 'messages/tabbed_base.html', {
bgneal@428 81 'tab': tab_index,
bgneal@428 82 'receiver': receiver,
bgneal@429 83 'unread_count': Message.objects.unread_count(request.user),
bgneal@428 84 })
bgneal@428 85
bgneal@428 86
bgneal@425 87 def inbox(request):
bgneal@425 88 """
bgneal@425 89 Returns the inbox for the user.
bgneal@425 90
bgneal@425 91 """
bgneal@425 92 if not request.user.is_authenticated():
bgneal@425 93 return HttpResponseForbidden()
bgneal@425 94
bgneal@425 95 msg_list = Message.objects.inbox(request.user)
bgneal@436 96 _quota_check('inbox', msg_list.count(), request)
bgneal@436 97
bgneal@425 98 paginator = Paginator(msg_list, MSGS_PER_PAGE)
bgneal@425 99 try:
bgneal@425 100 msgs = paginator.page(_get_page(request))
bgneal@566 101 except (EmptyPage, InvalidPage):
bgneal@425 102 msgs = paginator.page(paginator.num_pages)
bgneal@425 103
bgneal@425 104 return render(request, 'messages/inbox_tab.html', {
bgneal@425 105 'msgs': msgs,
bgneal@429 106 'url': reverse('messages-inbox'),
bgneal@425 107 })
bgneal@425 108
bgneal@425 109
bgneal@425 110 def outbox(request):
bgneal@425 111 """
bgneal@425 112 Returns the outbox for the user.
bgneal@425 113
bgneal@425 114 """
bgneal@425 115 if not request.user.is_authenticated():
bgneal@425 116 return HttpResponseForbidden()
bgneal@425 117
bgneal@425 118 msg_list = Message.objects.outbox(request.user)
bgneal@436 119 _quota_check('outbox', msg_list.count(), request)
bgneal@436 120
bgneal@425 121 paginator = Paginator(msg_list, MSGS_PER_PAGE)
bgneal@425 122 try:
bgneal@425 123 msgs = paginator.page(_get_page(request))
bgneal@566 124 except (EmptyPage, InvalidPage):
bgneal@425 125 msgs = paginator.page(paginator.num_pages)
bgneal@425 126
bgneal@425 127 return render(request, 'messages/outbox_tab.html', {
bgneal@425 128 'msgs': msgs,
bgneal@429 129 'url': reverse('messages-outbox'),
bgneal@425 130 })
bgneal@425 131
bgneal@425 132
bgneal@425 133 def trash(request):
bgneal@425 134 """
bgneal@425 135 Returns the trash for the user.
bgneal@425 136
bgneal@425 137 """
bgneal@425 138 if not request.user.is_authenticated():
bgneal@425 139 return HttpResponseForbidden()
bgneal@425 140
bgneal@425 141 msg_list = Message.objects.trash(request.user)
bgneal@425 142 paginator = Paginator(msg_list, MSGS_PER_PAGE)
bgneal@425 143 try:
bgneal@425 144 msgs = paginator.page(_get_page(request))
bgneal@566 145 except (EmptyPage, InvalidPage):
bgneal@425 146 msgs = paginator.page(paginator.num_pages)
bgneal@425 147
bgneal@425 148 return render(request, 'messages/trash_tab.html', {
bgneal@425 149 'msgs': msgs,
bgneal@429 150 'url': reverse('messages-trash'),
bgneal@425 151 })
bgneal@425 152
bgneal@425 153
bgneal@425 154 def message(request):
bgneal@425 155 """
bgneal@425 156 This view function retrieves a message and returns it as a JSON object.
bgneal@425 157
bgneal@425 158 """
bgneal@425 159 if not request.user.is_authenticated():
bgneal@425 160 return HttpResponseForbidden()
bgneal@425 161 if request.method != 'POST':
bgneal@425 162 return HttpResponseNotAllowed(['POST'])
bgneal@425 163
bgneal@425 164 msg_id = request.POST.get('msg_id')
bgneal@425 165 msg = get_object_or_404(Message.objects.select_related(), pk=msg_id)
bgneal@425 166 if msg.sender != request.user and msg.receiver != request.user:
bgneal@425 167 return HttpResponseForbidden()
bgneal@425 168
bgneal@425 169 if msg.receiver == request.user and msg.read_date is None:
bgneal@425 170 msg.read_date = datetime.datetime.now()
bgneal@425 171 msg.save()
bgneal@425 172
bgneal@425 173 msg_dict = dict(subject=msg.subject,
bgneal@425 174 sender=msg.sender.username,
bgneal@425 175 receiver=msg.receiver.username,
bgneal@425 176 content=msg.html,
bgneal@425 177 re_subject=reply_subject(msg.subject),
bgneal@566 178 re_content=quote_message(msg.sender.username, msg.message))
bgneal@425 179
bgneal@425 180 result = json.dumps(msg_dict, ensure_ascii=False)
bgneal@425 181 return HttpResponse(result, content_type='application/json')
bgneal@425 182
bgneal@425 183
bgneal@425 184 def options(request):
bgneal@425 185 """
bgneal@425 186 This view handles the displaying and changing of private message options.
bgneal@425 187
bgneal@425 188 """
bgneal@425 189 if not request.user.is_authenticated():
bgneal@425 190 return HttpResponseForbidden()
bgneal@425 191
bgneal@425 192 if request.method == "POST":
bgneal@425 193 options = Options.objects.for_user(request.user)
bgneal@425 194 form = OptionsForm(request.POST, instance=options, prefix='opts')
bgneal@425 195 if form.is_valid():
bgneal@425 196 form.save()
bgneal@436 197 django_messages.success(request, 'Options saved.')
bgneal@425 198 else:
bgneal@425 199 options = Options.objects.for_user(request.user)
bgneal@425 200 form = OptionsForm(instance=options, prefix='opts')
bgneal@425 201
bgneal@425 202 return render(request, 'messages/options_tab.html', {
bgneal@425 203 'form': form,
bgneal@425 204 })
bgneal@425 205
bgneal@425 206
bgneal@425 207 def compose(request, receiver=None):
bgneal@425 208 """
bgneal@425 209 Process or prepare the compose form to create a new private message.
bgneal@425 210
bgneal@425 211 """
bgneal@425 212 if not request.user.is_authenticated():
bgneal@425 213 return HttpResponseForbidden()
bgneal@425 214
bgneal@425 215 if request.method == "POST":
bgneal@425 216 compose_form = ComposeForm(request.user, request.POST)
bgneal@430 217
bgneal@430 218 # Is this a reply to another message?
bgneal@430 219 parent_msg_id = request.POST.get('reply_to')
bgneal@430 220 if parent_msg_id:
bgneal@430 221 parent_msg = get_object_or_404(Message, id=parent_msg_id)
bgneal@430 222 if (request.user != parent_msg.receiver and
bgneal@430 223 request.user != parent_msg.sender):
bgneal@430 224 return HttpResponseForbidden()
bgneal@430 225 else:
bgneal@430 226 parent_msg = None
bgneal@430 227
bgneal@425 228 if compose_form.is_valid():
bgneal@430 229 compose_form.save(parent_msg=parent_msg)
bgneal@436 230 django_messages.success(request, 'Message sent.')
bgneal@431 231 compose_form = ComposeForm(request.user)
bgneal@425 232 else:
bgneal@425 233 if receiver is not None:
bgneal@425 234 form_data = {'receiver': receiver}
bgneal@425 235 compose_form = ComposeForm(request.user, initial=form_data)
bgneal@425 236 else:
bgneal@425 237 compose_form = ComposeForm(request.user)
bgneal@425 238
bgneal@436 239 _quota_check('outbox', Message.objects.outbox(request.user).count(), request)
bgneal@436 240
bgneal@425 241 return render(request, 'messages/compose_tab.html', {
bgneal@425 242 'compose_form': compose_form,
bgneal@425 243 })
bgneal@425 244
bgneal@425 245
bgneal@425 246 def _only_integers(slist):
bgneal@425 247 """
bgneal@425 248 Accepts a list of strings. Returns a list of integers consisting of only
bgneal@425 249 those elements from the original list that could be converted to integers
bgneal@425 250
bgneal@425 251 """
bgneal@425 252 result = []
bgneal@425 253 for s in slist:
bgneal@425 254 try:
bgneal@425 255 n = int(s)
bgneal@425 256 except ValueError:
bgneal@425 257 pass
bgneal@425 258 else:
bgneal@425 259 result.append(n)
bgneal@425 260 return result
bgneal@425 261
bgneal@425 262
bgneal@425 263 def _delete_msgs(user, msg_ids):
bgneal@425 264 """
bgneal@425 265 Deletes the messages given by the list of msg_ids. For this to succeed, the
bgneal@425 266 user has to be either the sender or receiver on each message.
bgneal@425 267
bgneal@425 268 """
bgneal@425 269 msg_ids = _only_integers(msg_ids)
bgneal@425 270 msgs = Message.objects.filter(id__in=msg_ids)
bgneal@425 271
bgneal@425 272 for msg in msgs:
bgneal@425 273 if msg.sender == user:
bgneal@425 274 if (msg.receiver_delete_date is not None or
bgneal@425 275 msg.read_date is None):
bgneal@425 276 # Both parties deleted the message or receiver hasn't read it
bgneal@425 277 # yet, we can delete it now
bgneal@425 278 msg.delete()
bgneal@425 279 else:
bgneal@425 280 # receiver still has it in inbox
bgneal@425 281 msg.sender_delete_date = datetime.datetime.now()
bgneal@425 282 msg.save()
bgneal@425 283
bgneal@425 284 elif msg.receiver == user:
bgneal@425 285 if msg.sender_delete_date is not None:
bgneal@425 286 # both parties deleted the message, we can delete it now
bgneal@425 287 msg.delete()
bgneal@425 288 else:
bgneal@425 289 # sender still has it in the outbox
bgneal@425 290 msg.receiver_delete_date = datetime.datetime.now()
bgneal@425 291 msg.save()
bgneal@425 292
bgneal@425 293
bgneal@425 294 def _undelete_msgs(user, msg_ids):
bgneal@425 295 """
bgneal@425 296 Attempts to "undelete" the messages given by the msg_ids list.
bgneal@425 297 This will only succeed if the user is either the sender or receiver.
bgneal@425 298
bgneal@425 299 """
bgneal@425 300 msg_ids = _only_integers(msg_ids)
bgneal@425 301 msgs = Message.objects.filter(id__in=msg_ids)
bgneal@425 302 for msg in msgs:
bgneal@425 303 if msg.sender == user:
bgneal@425 304 msg.sender_delete_date = None
bgneal@425 305 msg.save()
bgneal@425 306 elif msg.receiver == user:
bgneal@425 307 msg.receiver_delete_date = None
bgneal@425 308 msg.save()
bgneal@425 309
bgneal@425 310
bgneal@425 311 def bulk(request):
bgneal@425 312 """
bgneal@425 313 This view processes messages in bulk. Arrays of message ids are expected in
bgneal@425 314 the POST query dict: inbox_ids and outbox_ids will be deleted; trash_ids will
bgneal@425 315 be undeleted.
bgneal@425 316
bgneal@425 317 """
bgneal@425 318 if not request.user.is_authenticated():
bgneal@425 319 return HttpResponseForbidden()
bgneal@425 320 if request.method != 'POST':
bgneal@425 321 return HttpResponseNotAllowed(['POST'])
bgneal@425 322
bgneal@425 323 delete_ids = []
bgneal@425 324 if 'inbox_ids' in request.POST:
bgneal@425 325 delete_ids.extend(request.POST.getlist('inbox_ids'))
bgneal@425 326 if 'outbox_ids' in request.POST:
bgneal@425 327 delete_ids.extend(request.POST.getlist('outbox_ids'))
bgneal@425 328
bgneal@425 329 if len(delete_ids):
bgneal@425 330 _delete_msgs(request.user, delete_ids)
bgneal@425 331
bgneal@425 332 if 'trash_ids' in request.POST:
bgneal@425 333 _undelete_msgs(request.user, request.POST.getlist('trash_ids'))
bgneal@425 334
bgneal@425 335 return HttpResponse('');