这是布局:
这是代码:
#base.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>{% block title %}{% endblock %}</title>
</head>
<body>
<div id="content">
<div id="l_col">
{% block left %}{% endblock %}
</div>
<div id="r_col">
{% block right %}{% endblock %}
</div>
</div>
</body>
</html>
#views.py
def list( request ):
vars = RequestContext( request, {
'news': News.objects.all(),
'top_news': News.news_manager.get_top_news()
} )
return render_to_response( 'news/list.html', vars )
def view( request, id ):
vars = RequestContext( request, {
'news': News.objects.filter( id = id ),
'top_news': News.news_manager.get_top_news()
} )
return render_to_response( 'news/view.html', vars )
#news/list.html and news/view.html
{% extends 'base.html' %}
{% block left %}
<!-- loop for news -->
{% endblock %}
{% block right %}
<!-- loop for top news -->
{% endblock %}
如您所见,变量“top_news”在方法中重复:“list”、“view”和 2 个模板中的相同循环用于热门新闻
如何消除这种重复的代码?