示例#1
0
def get_interval_and_start_time(request):
    context = {}
    context = get_names_for_all_column_headers()

    move_interval = request.GET.get('move_interval', None)
    datetime_start = request.GET.get('datetime_start', None)
    interval = request.GET.get('interval', None)

    if not interval:
        interval = 10*60 #default interval is 10 minutes
    else:
        interval = int(interval)*60 #converting minutes (more suitable) to seconds
    
    if not datetime_start or datetime_start.lower() == 'now':
        datetime_start = utils.strftime(utils.get_local_now(), "%Y-%m-%d %H:%M:%S")

    start_timestamp = utils.datelocal_totimestamp(utils.strptime(datetime_start, "%Y-%m-%d %H:%M:%S"))

    if move_interval and move_interval == 'back':
        start_timestamp -= interval
    elif move_interval and move_interval == 'forward':
        start_timestamp += interval
    
    context['datetime_start'] = datetime_start
    context['start_timestamp'] = start_timestamp
    context['interval'] = interval
    return context
示例#2
0
文件: views.py 项目: QRAAT/QRAAT
def set_time_parameters(start_timestamp, end_timestamp, datetime_from, datetime_to, interval, move_interval):

    # dictionary used to update time fields in form submited with back or forward buttons
    update_form_time = {}
    update_form_time['datetime_start'] = None
    update_form_time['datetime_end'] = None
    update_form_time['start_timestamp'] = None
    update_form_time['end_timestamp'] = None

    # A good URL has start and end_timestamp filled in.
    # If not, we proceed through a hiearchy to determine the time to use
    if start_timestamp and end_timestamp:
        update_form_time['start_timestamp'] = start_timestamp
        start_timestamp = int(start_timestamp)
        update_form_time['end_timestamp'] = end_timestamp
        end_timestamp = int(end_timestamp)

    else:
        # data type conversions
        if start_timestamp:
            update_form_time['start_timestamp'] = start_timestamp
            start_timestamp = int(start_timestamp)
        if end_timestamp:
            update_form_time['end_timestamp'] = end_timestamp
            if end_timestamp.lower() == "now":
                    end_timestamp = int(time.time()) # set end_timestamp to now
            else:
                    end_timestamp = int(end_timestamp)
        if interval:
            interval = int(interval)
        if datetime_to.lower() == "now":
            datetime_to = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") # set datetime_to to current datetime
                            
        # datetime format trumps UNIX timestamp format if both are given
        # datetimes
        if datetime_from and datetime_to:
            start_timestamp = utils.datelocal_totimestamp(utils.strptime(datetime_from, '%Y-%m-%d %H:%M:%S'))
            end_timestamp = utils.datelocal_totimestamp(utils.strptime(datetime_to, '%Y-%m-%d %H:%M:%S'))

        elif datetime_from and interval:
            update_form_time['datetime_start'] = datetime_from
            start_timestamp = utils.datelocal_totimestamp(utils.strptime(datetime_from, '%Y-%m-%d %H:%M:%S'))
            end_timestamp = start_timestamp + interval

        elif datetime_to and interval:
            update_form_time['datetime_end'] = datetime_to
            end_timestamp = utils.datelocal_totimestamp(utils.strptime(datetime_to, '%Y-%m-%d %H:%M:%S'))
            start_timestamp = end_timestamp - interval

        # UNIX timestamps
        elif start_timestamp and end_timestamp:
            pass
        
        elif start_timestamp and interval:
            end_timestamp = start_timestamp + interval

        elif end_timestamp and interval:
            start_timestamp = end_timestamp - interval

        else:
            return (0,0)
            #return HttpResponseBadRequest("Please double check your date/time values.") # this doesn't work - what to do instead?

    # back or forward buttons
    interval = end_timestamp - start_timestamp # TOOD: get rid of and interval once i determine how interval is taken care of
    if move_interval and interval:
        if move_interval == 'back':
            start_timestamp -= interval
            end_timestamp -= interval
        elif move_interval == 'forward':
            start_timestamp += interval
            end_timestamp += interval

        if update_form_time['start_timestamp'] and update_form_time['end_timestamp']:
            update_form_time['start_timestamp'] = start_timestamp
            update_form_time['end_timestamp'] = end_timestamp
        else:
            if update_form_time['datetime_start'] and interval:
                update_form_time['datetime_start'] = datetime.datetime.fromtimestamp(start_timestamp).strftime('%Y-%m-%d %H:%M:%S')
            elif update_form_time['datetime_end'] and interval:
                update_form_time['datetime_end'] = datetime.datetime.fromtimestamp(end_timestamp).strftime('%Y-%m-%d %H:%M:%S')
            elif update_form_time['start_timestamp'] and interval:
                update_form_time['start_timestamp'] = start_timestamp
            elif update_form_time['end_timestamp'] and interval:
                update_form_time['end_timestamp'] = end_timestamp

    return (start_timestamp, end_timestamp, update_form_time)