Get data from data folder?

Question

I need to get some data using a dynamic name from front matter:

{{ site.data.prd-[page.tag].title" }}

The above fails to get the string from the data folder and nothing is output.

Where am I going wrong?

Answer 1

I am not sure about what you are trying to do but how about make a dictionary type data in _data directory and search for a title that matches page.tag in desired pages?

_data.prd-tags.yml

For each item, we can access the key and value using index ([0]: key, [1]: value).

jekyll: "jekyll's title"
ruby: "ruby's title"
html: "html's title"
.
.
.

HTML fragment for searching and displaying a tag (if found)

Iterate over site.data.prd-tags and display title if an item that matches page.tag is found.

<div class="tag-title">
 {% for tag in site.data.prd-tags %}
 {% if tag[0] == page.tag %}
 {{ tag[1] }}
 {% else %}
 Nothing found
 {% endif %}
 {% endfor %}
</div>