Home > Templates

Templates in Basildon are all written in the Twig templating language. They can output any format that's required. Basildon provides a few variables functions, and filters for common website use cases; these are explained on this page.


  1. page – An object representing the current page being rendered. It has the following members:
    • page.body: The unmodified body text, good for piping through filters such as md2html and md2latex.
    • page.metadata: All the metadata defined in the page's frontmatter.
    • Creates a relative URL to another page.
  2. database - The database, the most useful attribute of which is database.query(sql).
  3. site – The site object, mostly used to access configuration values, e.g. site.config.title.


  1. commons(file_name) – Get information about a Wikimedia Commons file.
  2. flickr(photo_id) – Get information about a Flickr photo. To use this, you need to set the flickr.api_key and flickr.api_secret values in your site's config.local.yaml file.
  3. qrcode(text) – Returns an asset-directory path to a QR code SVG file, such as /assets/8a482ae2afb51a1de85b7eb9087f7cc2.svg. For example: <img src="{{'string')) }}" />
  4. wikidata(qid) – Returns information about the given Wikidata item. For example, {{ wikidata('Q42').descriptions.en.value }} will return something like "English writer and humorist". To get the full details of the returned structure, see e.g.
  5. wikidata_query(sparql) — Returns the result of the Sparql query from Wikidata. See the example in /example/templates/tag.html.twig
  6. wikipedia(lang, title) — Returns an HTML extract of the given article. For example: {{wikipedia('en', 'Tag (metadata)')|raw}}

Filters and escapers

  1. md2html – Filter markdown to HTML.
  2. md2latex – Filter markdown to LaTeX.
  3. escape('tex') – Escaper to use in TeX templates to escape characters that have special meaning in TeX, e.g. {{ '$10'|e('tex') }}. This is often used by wrapping the template in {% autoescape 'tex' %}{% endautoescape %}
  4. dirname and basename — Identical to PHP's dirname() and basename() functions. Useful for working with Basildon page IDs.