Get ID of current taxonomy in register_rest_field

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I have a term field created with types plugin and attached to the “category” taxonomy. I need to get this field in the api rest. You cant get the termmeta in types plugin like this

types_render_termmeta($slug_term, array("term_id" => $term_id));

I don’t know how to get current category id in register_rest_field function. 

  register_rest_field( 'category', 'color', array( 
     'get_callback' => function() {

        $term_id = "DONT KNOW HOW TO GET IT";

        $color = types_render_termmeta('color-de-categoria', array("term_id" => $term_id));

        return $color;
    }        
));

Thanks in advanced.

1 Answer
1

The get_callback part is generated within the WP_REST_Controller::add_additional_fields_to_object() method with:

$object[ $field_name ] = call_user_func( 
    $field_options['get_callback'], 
    $object, 
    $field_name, 
    $request, 
    $this->get_object_type() 
);

That means the callback has four input arguments:

'get_callback' => function ( $object, $field_name, $request, $object_type ) {
    // ...
}

and for the requested category object, we can get the term id with:

$term_id = $object['id'];

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