/** * Returns an array containing, for each field, the arary key used for that * field in self::$_fields. * * @return array */ static function &fieldKeys() { if (!self::$_fieldKeys) { self::$_fieldKeys = array('id' => 'participant_id', 'contact_id' => 'participant_contact_id', 'event_id' => 'event_id', 'status_id' => 'participant_status_id', 'role_id' => 'participant_role_id', 'register_date' => 'participant_register_date', 'source' => 'participant_source', 'fee_level' => 'participant_fee_level', 'is_test' => 'participant_is_test', 'is_pay_later' => 'participant_is_pay_later', 'fee_amount' => 'participant_fee_amount', 'registered_by_id' => 'participant_registered_by_id', 'discount_id' => 'participant_discount_id', 'fee_currency' => 'participant_fee_currency', 'campaign_id' => 'participant_campaign_id', 'discount_amount' => 'discount_amount', 'cart_id' => 'cart_id', 'must_wait' => 'must_wait', 'transferred_to_contact_id' => 'transferred_to_contact_id'); } return self::$_fieldKeys; }