- * static instance to hold the field values
- *
- * @var array
- */
- static $_fields = null;
- /**
- * static instance to hold the keys used in $_fields for each field.
- *
- * @var array
- */
- static $_fieldKeys = null;
- /**
- * static instance to hold the FK relationships
- *
- * @var string
- */
- static $_links = null;
- /**
- * static instance to hold the values that can
- * be imported
- *
- * @var array
- */
- static $_import = null;
- /**
- * static instance to hold the values that can
- * be exported
- *
- * @var array
- */
- static $_export = null;
- /**
- * static value to see if we should log any modifications to
- * this table in the civicrm_log table