def getGroups(self, roomName, buildingName):
		checkData(locals())

		room = Room(buildingName = buildingName, roomName = roomName)
		room.retrieve()

		groupList = room.getGroups( )

		response = []
		for group in groupList:
			response.append(group.getDict())
			

		return {"groups" : response}
	def sendNotification(self, userUuid = None, buildingName = None, groupId = None, roomName = None, messageSubject = None, messageText = None):
		checkData(locals())

		
		if not messageSubject:
			raise NewNotificationMissingInputError("messageSubject is mandatory to send a new notification")

		if not messageText:
			raise NewNotificationMissingInputError("messageText is mandatory to send a new notification")

		if not userUuid and not buildingName:
			raise NewNotificationMissingInputError("You have to specify at least one recipient to send a new notification")

		if buildingName and not roomName and not groupId:
			raise NewNotificationMissingInputError("You cannot send a notification to an entire building. You have to specify at least a room or a group.")			

		if not buildingName and not roomName and not groupId:
			raise NewNotificationMissingInputError("You have to specify at least one recipient to send a new notification.")			


		recipientUuidList = []

		if userUuid:
			recipientUuidList.append(userUuid)

		if buildingName and roomName:
			from app.backend.model.room import Room

			room = Room(buildingName = buildingName, roomName = roomName)
			room.retrieve()

			for user in room.getUsers():
				recipientUuidList.append(user.uuid)

			# managing rooms insid a cross validation group
			for group in room.getGroups():
				if group.crossRoomsValidation:
					for gRoom in group.getRooms():
						for user in gRoom.getUsers():
							recipientUuidList.append(user.uuid)


		if buildingName and groupId:

			from app.backend.model.group import Group
			from app.backend.model.room import Room

			group = Group(buildingName = buildingName, id = groupId)
			group.retrieve()

			for room in group.getRooms():
				for user in room.getUsers():
					recipientUuidList.append(user.uuid)

		# Removing duplicate Id
		recipientUuidList = list(set(recipientUuidList))

		for recipientUuid in recipientUuidList:
			notification = Notification(recipientUuid = recipientUuid, messageSubject = messageSubject, messageText = messageText)
			notification.store()

		return {}