Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'membership_id', 'civicrm_membership', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'status_id', 'civicrm_membership_status', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'modified_id', 'civicrm_contact', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'membership_id', 'civicrm_membership', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'status_id', 'civicrm_membership_status', 'id');
Civi::$statics[__CLASS__]['links'][] = new CRM_Core_Reference_Basic(self::getTableName(), 'modified_id', 'civicrm_contact', 'id');