如何在Django模板中使用break和continue？ [英] How can I use break and continue in Django templates?

问题描述

我想在我的代码中放弃并继续，但它在Django模板中不起作用。如何使用继续，并使用Django模板进行循环。以下是一个例子：

  {％for i in i_range％} 
 {％for patient_meds.frequency％ } 
 {％ifequal frequency i％} 
< td class =nopad>< input type =checkboxname =frequency-1value ={{i}}检查/> {{i}} AM< / td> 
 {{forloop.parentloop | continue}} //////它不工作
 {continue} //////它也不工作
 {％endifequal ％} 
 {％endfor％} 
< td class =nopad>< input type =checkboxname =frequency-1value ={{i}} > {{i}} AM< / td> 
 {％endfor％} 
  

解决方案

Django模板中的循环与纯Python for循环不同，因此 continue 和 break 将无法正常工作。在Django docs 中查看自己，没有 break 或 continue 模板标签。鉴于Django模板语法中的Keep-It-Simple-Stupid的整体位置，您可能需要找到另一种方式来完成所需的操作。

I want to put break and continue in my code, but it doesn't work in Django template. How can I use continue and break using Django template for loop. Here is an example:

{% for i in i_range %}
{% for frequency in patient_meds.frequency %}
{% ifequal frequency i %}
<td class="nopad"><input type="checkbox" name="frequency-1" value="{{ i }}" checked/> {{ i }} AM</td>
{{ forloop.parentloop|continue }} ////// It doesn't work
{ continue }                      ////// It also doesn't work
{% endifequal %}
{% endfor%}
<td class="nopad"><input type="checkbox" name="frequency-1" value="{{ i }}"/> {{ i }} AM</td>
{% endfor %}

解决方案

For-loops in Django templates are different from plain Python for-loops, so continue and break will not work in them. See for yourself in the Django docs, there are no break or continue template tags. Given the overall position of Keep-It-Simple-Stupid in Django template syntax, you will probably have to find another way to accomplish what you need.

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