def execute(self): expire_date = datetime.now() - timedelta(seconds=settings.CHAT_TIMEOUT) appearances = Appearance.objects.filter(timestamp__lte=expire_date) for appearance in appearances: # generate leave messages in each room m = ChatMessage() m.room = appearance.room m.type = ChatMessage.LEAVE m.author = appearance.person m.save() appearances.delete()
def ajax_say(request): room = get_obj_from_request(request.POST, 'room', ChatRoom) if room is None: return json_failure(design.bad_room_id) data = { 'user': { 'is_authenticated': request.user.is_authenticated(), 'permission_read': room.permission_to_hear(request.user), 'permission_write': room.permission_to_chat(request.user), }, 'success': False, } if not room.is_active(): return json_failure(design.room_is_not_active) message = request.POST.get('message', '') if message == "": return json_failure(design.cannot_say_blank_message) if len(message) > ChatMessage._meta.get_field('message').max_length: #@UndefinedVariable return json_failure(design.message_too_long) if not data['user']['permission_write']: return json_failure(design.you_lack_write_permission) msgType = get_val(request.POST, 'type', ChatMessage.MESSAGE) if msgType not in [ChatMessage.MESSAGE, ChatMessage.ACTION]: msgType = ChatMessage.MESSAGE # we're clear. add the message m = ChatMessage() m.room = room m.type = msgType m.author = request.user m.message = message m.save() data['success'] = True return json_response(data)
def ajax_hear(request): """ get new or all messages """ last_message_str = request.GET.get('last_message', 'null') room = get_obj_from_request(request.GET, 'room', ChatRoom) if room is None: return json_failure(design.bad_room_id) # make sure user has permission to be in this room data = { 'user': { 'is_authenticated': request.user.is_authenticated(), 'permission_read': room.permission_to_hear(request.user), 'permission_write': room.permission_to_chat(request.user), }, 'room': room.to_dict(), 'messages': [], 'success': True } if request.user.is_authenticated(): data['user'].update({ 'username': request.user.username, }) if data['user']['permission_read']: def add_to_message(msg): return { 'id': msg.id, 'type': msg.type, 'author': { 'username': msg.author.username, 'id': msg.author.id, }, 'message': msg.message, 'timestamp': msg.timestamp, } if last_message_str == 'null': # get entire log for this chat. data['messages'] = [add_to_message(x) for x in ChatMessage.objects.filter(room=room)] else: try: last_message_id = int(last_message_str) except ValueError: last_message_id = 0 data['messages'] = [add_to_message(x) for x in ChatMessage.objects.filter(room=room, id__gt=last_message_id)] if data['user']['permission_write']: # mark an appearance in the ChatRoom if request.user.is_authenticated() and room.is_active(): appearances = Appearance.objects.filter(person=request.user, room=room) if appearances.count() > 0: appearances[0].save() # update the timestamp else: new_appearance = Appearance() new_appearance.room = room new_appearance.person = request.user new_appearance.save() # join message m = ChatMessage() m.room=room m.type=ChatMessage.JOIN m.author=request.user m.save() return json_response(data)