小编Ath*_*ion的帖子

在过去的几个小时里,我一直在争论这个问题.我无法显示{{MEDIA_URL}}

在settings.py中

..
MEDIA_URL = 'http://10.10.0.106/ame/'
..
TEMPLATE_CONTEXT_PROCESSORS = (
  "django.contrib.auth.context_processors.auth",
  "django.core.context_processors.media",
)
..

在我看来,我有

from django.shortcuts import render_to_response, get_object_or_404
from ame.Question.models import Question

def latest(request):
  Question_latest_ten = Question.objects.all().order_by('pub_date')[:10]
  p = get_object_or_404(Question_latest_ten)
  return render_to_response('Question/latest.html', {'latest': p})

然后我有一个base.html和问题/ latest.html

{% extends 'base.html' %}
<img class="hl" src="{{ MEDIA_URL }}/images/avatar.jpg" /></a>

但MEDIA_URL显示空白,我认为这是它的假设,但也许我错了.

更新 最新版本修复了这些问题.

这更像是一种偏好,但我想知道人们认为什么是最佳选择.我有一个问题,答案和点(因为我需要跟踪哪个用户指出了这一点)

表转储

Question:
  id
  title

Answer:
  id
  question_id
  user_id
  response

Point_Answer:
  id
  answer_id
  user_id
  points

因此,在此布局中获取Top Answer将需要复杂的连接序列.

SELECT t2.id, t2.user_id, t2.response, MAX(points)
FROM Question as t1,
  (SELECT qa.*, SUM(pa.points) as points
  FROM answer as qa, Point_Answer as pa
  WHERE qa.id = pa.answer_id
  GROUP BY qa.id) as t2
WHERE t1.id = %s AND t1.id = t2.question_id

如果我这样改变它:

Question:
  id
  title

Answer:
  id
  question_id
  user_id
  response
  points

Point_Answer:
  id
  answer_id
  user_id
  points

查询的负担会减轻

SELECT A.id, A.user_id, A.response, MAX(points)
FROM Question as Q, …