23 lines
630 B
ReStructuredText
23 lines
630 B
ReStructuredText
``constant``
|
|
============
|
|
|
|
.. versionadded:: 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:
|
|
|
|
.. code-block:: twig
|
|
|
|
{% 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:
|
|
|
|
.. code-block:: twig
|
|
|
|
{% if post.status is constant('PUBLISHED', post) %}
|
|
the status attribute is exactly the same as Post::PUBLISHED
|
|
{% endif %}
|