在 Rails 中循环结构化数据

Question

I am trying to use structured data in rails, but it is not working properly. Below is my code:

<script type="application/ld+json">
<%=
{
  "@context": "http://schema.org",
  "@type": "FAQPage",
  "mainEntity": @faq[:lists].each do |item|
    item[:list].map do |list|
      {
        "@type": "Question",
        "name": list[:heading],
        "acceptedAnswer": {
          "@type": "Answer",
          "text": list[:desc]
        }
      }
    end
  end
}.to_json.html_safe
%>
</script>

What I am doing?

Answer 1

If you want mainEntity to be a simple array (not an array of arrays), you can try this:

<script type="application/ld+json">
<%=
{
  "@context": "http://schema.org",
  "@type": "FAQPage",
  "mainEntity": @faq[:lists].map do |item|
    item[:list].map do |list|
      {
        "@type": "Question",
        "name": list[:heading],
        "acceptedAnswer": {
          "@type": "Answer",
          "text": list[:desc]
        }
      }
    end
  end.flatten # <===== array[array] --> array
}.to_json.html_safe
%>
</script>

See: https://apidock.com/ruby/Array/flatten