ivanD-50

Problem:

We encountered an issue querying custom post types by a slug with graphql, and it works only for the posts in the site's default language, e.i. If the site's default language is English, this query for the post will work:

query getArticlesByslug {
  article(id: "the-latest-eng-article", idType: SLUG) {
    title
    content
  }
}

But if we change the site's default language to say Belarusian, the query will return null.

Solution:

1. Add this function to the functions.php file of your theme.

add_filter('request', function($vars){
    if (isset($vars['graphql']) && !empty($vars['name'])) {
        $vars['suppress_filters'] = true;
    }
 
    return $vars;
});

2. Save the file and reload the homepage of your site.

The issue has been escalated to our developers, and they will try to improve this in future versions of WPML GraphQL

Relevant Documentation:

https://wpml.org/documentation/related-projects/wpml-graphql/