public array read (string $key) Reads meta-data from $_SESSION

integer MODELS_DATA_TYPES_NUMERIC

integer MODELS_PRIMARY_KEY

integer MODELS_NON_PRIMARY_KEY

integer MODELS_ATTRIBUTES

integer MODELS_EMPTY_STRING_VALUES

integer MODELS_AUTOMATIC_DEFAULT_INSERT

public write (string $key, array $data) Writes the meta-data to $_SESSION

extends abstract class Phalcon\Mvc\Model\MetaData