Theme Tags

Theme Tags have various functions, including:

  • Outputting template-specific HTML markup
  • Telling the theme which layout and snippets to use
  • Splitting a returned array into multiple pages.


  1. comment
  2. include
  3. form
  4. paginate
  5. raw

comment

Allows you to leave un-rendered code inside a Liquid template. Any text within the opening and closing comment blocks will not be output, and any Liquid code within will not be executed.

Input
  Best for me is {% comment %}super{% endcomment %} BookingSync.
Output
  Best for me is BookingSync.

include

Inserts a snippet from the snippets folder of a theme.

  {% include "snippets/locale_switch" %}

Note that the .liquid extension is omitted in the above code. When a snippet is included, the code inside it will have access to the variables within its parent template.

Including multiple variables in a snippet

There are two ways to include multiple variables in a snippet. You can assign and include them on different lines:

  {% assign page_title = site.name %}
  {% assign page_description = site.description %}
  {% include "snippets/locale_switch" %}

Or you can consolidate them into one line of code:

  {% include "snippets/locale_switch", page_title: site.name, page_description: site.description %}

include parameters

with

The with parameter assigns a value to a variable inside a snippet that shares the same name as the snippet.

For example, we can have a snippet named color.liquid which contains the following:

  color: '{{ color }}'
  shape: '{{ shape }}'

Within theme.liquid, we can include the color.liquid snippet as follows:

  {% assign shape = 'circle' %}
  {% include 'color' %}
  {% include 'color' with 'red' %}
  {% include 'color' with 'blue' %}
  {% assign shape = 'square' %}
  {% include 'color' with 'red' %}

The output will be:

  color: shape: 'circle'
  color: 'red' shape: 'circle'
  color: 'blue' shape: 'circle'
  color: 'red' shape: 'square'

form

Creates an HTML <form> element with all the necessary attributes (action, id, etc.) and <input> to submit the form successfully.

paginate

Splitting rentals, blog articles, and search results across multiple pages is a necessary component of theme design as you are limited to 50 results per page in any for loop.

The paginate tag works in conjunction with the for tag to split content into numerous pages. It must wrap a for tag block that loops through an array, as shown in the example below:


  {% paginate collection.rentals by 5 %}
    {% for rental in collection.rentals %}
      <!--show rentals details here -->
    {% endfor %}
  {% endpaginate %}


The by parameter is followed by an integer between 1 and 50 that tells the paginate tag how many results it should output per page.

Within paginate tags, you can access attributes of the paginate object. This includes the attributes to output the links required to navigate within the generated pages.

raw

Allows output of Liquid code on a page without being parsed.

Input
  {% raw %}{{ 5 | plus: 6 }}{% endraw %} is equal to 11.
Output
  {{ 5 | plus: 6 }} is equal to 11.