dongyuchen9276 2017-03-16 17:23
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如何强制将twig变量解析为字符串?

I have a twig template that generates JSON-LD at the bottom of a blog page. Here is a section of the JSON metadata:

    {% set dateString %}
        "datePublished": "{{ post.post_date|date('c') }}",
    {% endset %}
    {{ post.settings.hide_publish_date ? '' : '{{ dateString }}' }},

The output when I view the source code of the webpage is this:

"DatePublished": "{{ dateString }}",

What I expected to see was something like this:

"DatePublished": "2017-03-15T10:59:56+00:00",

How can I ensure that my variable dateString resolves to the expected value?

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  • dongtong0796 2017-03-16 17:23
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    I was able to get the date value to output correctly by using the twig replace filter.

    {% set dateString %}
        "datePublished": "{{ post.post_date|date('c') }}",
    {% endset %}
    {{ post.settings.hide_publish_date ? '' : '%dateOutput%'|replace({'%dateOutput%': dateString}) }}
    

    The webpage now outputs the expected values to the JSON-LD:

    "DatePublished": "2017-03-15T10:59:56+00:00",
    
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