Warning Twig version 1.x is no longer maintained.
constant
1.13.1
constant now accepts object instances as the second argument.
constant
checks if a variable has the exact same value as a constant. You
can use either global constants or class constants:
1 2 3
{% if post.status is constant('Post::PUBLISHED') %}
the status attribute is exactly the same as Post::PUBLISHED
{% endif %}
You can test constants from object instances as well:
1 2 3
{% if post.status is constant('PUBLISHED', post) %}
the status attribute is exactly the same as Post::PUBLISHED
{% endif %}