@Netzhexe, When a theme/plugin is being called by Admin, pages are not being initialized. Hence, taxonomies are not being collected…
Admin needs to be forced to load the pages using $admin->enablePages()
What you could do (see also this post):
- Create a static function in theme/plugin:
public static function taxonomyValues(string $taxon) { /** @var Grav */ $grav = Grav::instance(); /** @var Admin */ $admin = $grav['admin']; $admin->enablePages(); /** @var Taxonomy */ $taxonomy = $grav['taxonomy']; $keys = $taxonomy->getTaxonomyItemKeys($taxon); $values = []; foreach ($keys as $key) { $values[$key] = $key; } return $values; }
- And call the static function in the blueprint using:
Note when using a plugin, the name must end with 'Plugin .data-options@: ['\Grav\Theme\MyTheme::taxonomyValues', 'category'] --or-- data-options@: ['\Grav\Plugin\MyPluginPlugin::taxonomyValues', 'category']