的Django與PUB_DATE

Question

class event_archive(models.Model): 
event_id   = models.AutoField(primary_key=True) 
date_submitted  = models.DateTimeField() 
event_start_time = models.DateTimeField() 
event_end_time  = models.DateTimeField() 
event_closed  = models.BooleanField() 

比較datetime.now我想這樣做：這裏是pseudo_code：

---

event = event_archive.objects.all() 
for e in event: 
if event_start_time > datetime_now() 
    print "upcoming"; 
elif event_start_time < datetime_now() < event_end_time 
    print "now"; 
elif event_end_time < datetime_now() < **24 hours passed the event ends** 
    print "%d hours ago",%hour; 
elif event_end_time < datetime_now() > **24 hours passed the event ends** and event_end_time < datetime_now() < **48 hours passed the event ends** 
    print "yesterday"; 
else 
    print "recorded" 
endif; 
endfor; 

---

**我在編程和python..Please很新不介意我是否問了一個非常愚蠢的問題，或者沒有明確提出問題。在粗線中，我不知道該怎麼用？

我需要幫助寫我的Django視圖function..Any幫助，請..

Answer 1

如果要爲模板這樣做，使用timeuntil和timesince過濾器，其設計用於這項任務。

Answer 2

from datetime import datetime 

datetime_now = datetime.now() 

現在 'datetime_now' 變量的當前時間。

使用此變量與事件開始時間和打印進行比較或爲該狀況做相關事情。

爲如：

if event_start_time > datetime_now: 
    print "upcoming" 

Answer 3

import datetime 

if some_datetime > datetime.datetime.now() + datetime.timedelta(days=10): 
    return "some_date is greater than the current datetime plus 10 days" 

見timedelta DOC：http://docs.python.org/library/datetime.html#datetime.timedelta