我知道这个问题已经遍布stackoverflow,但是它的这个特殊实例让我迷失了。原因是,我定期收到此错误 - 根本不更改HTML文件。
问题似乎在这里:
{% extends "base.html" %}
{% load static %}
{% load support_tags %}
{% block content_header %}
<h1>Header</h1>
{% endblock content_header %}
{% block new-main-area %}
{% ticket_categories as categories %} {# Problem is here #}
<option value="None">Select a Category</option>
{% for cat in categories %}
<option value="{{cat.slug}}">{{cat}}</option>
{% endfor %}
{% endblock new-main-area %}
{% block extrascripts_bottom %}
{% endblock extrascripts_bottom %}
谢谢!
答案 0 :(得分:3)
恕我直言,代码滥用了with
标签:
替换以下行:
{% ticket_categories as categories %} <!-- Problem is here -->
<option value="None">Select a Category</option>
{% for cat in categories %}
<option value="{{cat.slug}}">{{cat}}</option>
{% endfor %}
使用:
{% with ticket_categories as categories %} <!-- Problem is here -->
<option value="None">Select a Category</option>
{% for cat in categories %}
<option value="{{cat.slug}}">{{cat}}</option>
{% endfor %}
{% endwith %}
或者(根本不需要with
):
<option value="None">Select a Category</option>
{% for cat in ticket_categories %}
<option value="{{cat.slug}}">{{cat}}</option>
{% endfor %}