Question

是否可以编写一个模板标签来检查列表的内容？

目前我从5到13进行了以下检查，但这非常详细，我需要做9次。

{% if wizard.steps.current == '5' %}                    
    <img src="{% static "survey/images/pathtwo/" %}{{display_image}}"/>                                                                     
    <section>   
    <span class="tooltip"></span>   
    <div id="slider"></div>  
    <span class="volume"></span>  
    </section>      
{% endif %}
{% if wizard.steps.current == '6' %}            
    <img src="{% static "survey/images/pathtwo/" %}{{display_image}}"/>                                                                     
    <section>   
    <span class="tooltip"></span>   
    <div id="slider"></div>  
    <span class="volume"></span>  
    </section>      
{% endif %}
    ...
    ...

我试过了

{% if wizard.steps.current in ['5','6','7','8','9','10','11','12','13'] %}              
    <img src="{% static "survey/images/paththree/" %}{{display_image}}" />                                                                      
    <section>   
    <span class="tooltip"></span>   
    <div id="slider"></div>  
    <span class="volume"></span>  
    </section>      
{% endif %}

但是收到错误

异常值：无法解析余数：＆＃39; [＆＃39; 5＆＃39;＆＃39; 6＆＃39;＆＃39 7＆＃39;＆＃39 8＆＃39;＆＃39; 9＆＃39 ;, ＆＃39; 10＆＃39;＆＃39; 11＆＃39;＆＃39; 12＆＃39;＆＃39; 13＆＃39;]＆＃39;从＆＃39; [＆＃39; 5＆＃39;＆＃39; 6＆＃39;＆＃39 7＆＃39;＆＃39 8＆＃39;＆＃39; 9＆＃39 ;, ＆＃39; 10＆＃39;＆＃39; 11＆＃39;＆＃39; 12＆＃39;＆＃39; 13＆＃39;]＆＃39;

有什么想法吗？

Answer 1

你可以尝试创建一个＆＃34; In＆＃34;过滤你自己。

# Somewhere in your template filters and tags

@register.filter
def InList(value, list_):
  return value in list_.split(',)

并在您的模板中：

{% load inlist %}

{% if not '1'|InList:'5,6,7,8,9,10,11,12,13' %}
<div>1 is not inside</div>
{% endif %}

{% if '5'|InList:'5,6,7,8,9,10,11,12,13' %}
<div>5 is inside</div>
{% endif %}

我刚试过它。有用。

BR

Django：如果在列表模板标签中

1 个答案: