Not able to use custom function in TWIG template!!

[neilnonstop]

Hello!! I'm currently developing a Gantry 5-based site and need to implement breadcrumb navigation into the TWIG files. To create the breadcrumbs, I'm using Yoast SEO's built-in function for this.

In order to implement this in Gantry/TWIG, I'm attempting to follow your instructions for adding functions using theme.php. Here is the code I am attempting to add:

class karma {

	public function getBreadcrumb() {
	if ( function_exists('yoast_breadcrumb') ) {
			$breadcrumb = yoast_breadcrumb( '<p id="breadcrumbs">','</p>' );
			echo $breadcrumb;
		}
	}

}

$gantry['karma'] = new karma();

Whenever I try to call this new object/method in my TWIG file, by adding {{ gantry.karma.getBreadcrumb() }} to the template, I get this error message:

Fatal error: Uncaught Twig_Error_Syntax: Unexpected "gantry" tag (expecting closing tag for the "block" tag defined near line 4). in /Applications/MAMP/htdocs/karmacoop/wp-content/themes/g5_hydrogen-child/custom/views/partials/content.html.twig:19 Stack trace: #0 /Applications/MAMP/htdocs/karmacoop/wp-content/plugins/gantry5/src/vendor/twig/twig/lib/Twig/TokenParser/Block.php(40): Twig_Parser->subparse(Array, true) #1 /Applications/MAMP/htdocs/karmacoop/wp-content/plugins/gantry5/src/vendor/twig/twig/lib/Twig/Parser.php(190): Twig_TokenParser_Block->parse(Object(Twig_Token)) #2 /Applications/MAMP/htdocs/karmacoop/wp-content/plugins/gantry5/src/vendor/twig/twig/lib/Twig/Parser.php(103): Twig_Parser->subparse(NULL, false) #3 /Applications/MAMP/htdocs/karmacoop/wp-content/plugins/gantry5/src/vendor/twig/twig/lib/Twig/Environment.php(692): Twig_Parser->parse(Object(Twig_TokenStream)) #4 /Applications/MAMP/htdocs/karmacoop/wp-content/plugins/gantry5/src/vendor/twig/twig/lib/Twig/Environment.php(750): Twig_Environment->parse(Ob in /Applications/MAMP/htdocs/karmacoop/wp-content/themes/g5_hydrogen-child/custom/views/partials/content.html.twig on line 19

Can you please explain what I'm doing wrong?? I could swear I'm following all of the instructions in the Gantry Docs. If I could get some guidance I would be eternally grateful!! Besides this issue, I'm really enjoying developing with Gantry! :)

[mahagr]

Sorry about the delay in my response.

You need to make sure you get Gantry first by:

$gantry = \Gantry\Framework\Gantry::instance();

Depending on the CMS you're using, when you need to do this differs, unless you do it when the theme initializes inside theme/includes/theme.php.

[ghost]

I am leaving this code here just for the records, since it is an old issue.

This can be done in a simple way: {{ function('yoast_breadcrumb', '<p id="breadcrumbs">', '</p>') }}
Check Timber functions: https://timber.github.io/docs/guides/functions/
Yoast Breadcrumb can be further customized with filters: https://yoast.com/help/implement-wordpress-seo-breadcrumbs/