/**
  * Adds FAQ fields to the index
  */
 public function init()
 {
     // Add classes
     $this->addClass('FAQ');
     // Add fields
     $this->addFulltextField('Question');
     $this->addFulltextField('Answer');
     $this->addFulltextField('Keywords');
     // category filter
     $this->addFilterField('Category.ID');
     // Add field boosting
     $this->setFieldBoosting('FAQ_Question', FAQ::config()->question_boost);
     $this->setFieldBoosting('FAQ_Answer', FAQ::config()->answer_boost);
     $this->setFieldBoosting('FAQ_Keywords', FAQ::config()->keywords_boost);
 }