name : FieldRepository.php <?php namespace Statamic\Fields; use Statamic\Support\Str; class FieldRepository { protected $fieldsets; public function __construct(FieldsetRepository $fieldsets) { $this->fieldsets = $fieldsets; } public function find(string $field): ?Field { if (! Str::contains($field, '.')) { return null; } [$fieldset, $handle] = explode('.', $field); if (! $fieldset = $this->fieldsets->find($fieldset)) { return null; } return $fieldset->field($handle); } }