Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'contribution_id', 'civicrm_contribution', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'price_field_id', 'civicrm_price_field', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'price_field_value_id', 'civicrm_price_field_value', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'contribution_id', 'civicrm_contribution', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'price_field_id', 'civicrm_price_field', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'price_field_value_id', 'civicrm_price_field_value', 'id');