Django CMS - 检查占位符是否为空 [英] Django CMS - check if placeholder is empty

问题描述

我使用：

• DjangoCMS 2.4


• Django 1.5.1


• Python 2.7.3

我想检查我的占位符是否为空。

I would like to check if my placeholder is empty.

<div>
    {% placeholder "my_placeholder" or %}
    {% endplaceholder %}
</div>

如果占位符为空，我不希望创建占位符之间的html。 p>

I don't want the html between the placeholder to be created if the placeholder is empty.

{% if placeholder "my_placeholder" %}
<div>
    {% placeholder "my_placeholder" or %}
    {% endplaceholder %}
</div>
{% endif %}

推荐答案

没有内置的方式在django-cms中这样做，所以你必须编写一个自定义的模板标签。在 django-cms Google组中有一些旧的讨论：

There is no built-in way to do this at the moment in django-cms, so you have to write a custom template tag. There are some old discussions about this on the django-cms Google Group:

• https://groups.google.com/forum/#!topic/django-cms/ WDUjIpSc23c /讨论


• https： //groups.google.com/forum/#!msg/django-cms/iAuZmft5JNw/yPl8NwOtQW4J


• https://groups.google.com/forum/?fromgroups=#!topic/django-cms/QeTlmxQnn3E


• https://groups.google.com/forum/#！主题/ django-cms / 2mWvEpTH0ns /讨论

• https://groups.google.com/forum/#!topic/django-cms/WDUjIpSc23c/discussion
• https://groups.google.com/forum/#!msg/django-cms/iAuZmft5JNw/yPl8NwOtQW4J
• https://groups.google.com/forum/?fromgroups=#!topic/django-cms/QeTlmxQnn3E
• https://groups.google.com/forum/#!topic/django-cms/2mWvEpTH0ns/discussion

根据第一次讨论中的代码，我已经放在一起以下Gist：

Based on the code in the first discussion, I've put together the following Gist:

• https://gist.github.com/timmyomahony/5796677

• https://gist.github.com/timmyomahony/5796677

我使用如下： / p>

I use it like so:

{% load extra_cms_tags %}
{% get_placeholder "My Placeholder" as my_placeholder %}

{% if my_placeholder %}
<div>
    {{ my_placeholder }}
</div>
{% endif %}

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