PresenceVerifierInterface 
 interface PresenceVerifierInterface (View source) 
Methods
 int   getCount(string $collection, string $column, string $value, int $excludeId = null, string $idColumn = null, array $extra = array()) Count the number of objects in a collection having the given value.    int   getMultiCount(string $collection, string $column, array $values, array $extra = array()) Count the number of objects in a collection with the given values.