Following attributes are availible for columns

name	args	description

»» Basic attributes
primary	bool true	Defines column as a primary key column.
autoincrement	bool true	Defines column as autoincremented column. If the underlying database doesn't support autoincrementation natively its emulated with triggers and sequence tables.
default	mixed default	Sets default as an application level default value for a column. When default value has been set for a column every time a record is created the specified column has the default as its value.
enum	array enum	Sets enum as an application level enum value list for a column.
»» Basic validators
unique	bool true	Acts as database level unique constraint. Also validates that the specified column is unique.
nospace	bool true	Nospace validator. This validator validates that specified column doesn't contain any space/newline characters.
notblank	bool true	Notblank validator. This validator validates that specified column doesn't contain only space/newline characters. Useful in for example comment posting applications where users are not allowed to post empty comments.
notnull	bool true	Acts as database level notnull constraint as well as notnull validator for the specified column.
»» Advanced validators
email	bool true	Email validator. Validates that specified column is a valid email address.
date	bool true	Date validator.
range	array(min, max)	Range validator. Validates that the column is between min and max.
country	bool true	Country code validator validates that specified column has a valid country code.
regexp	string regexp	Regular expression validator validates that specified column matches regexp.
ip	bool true	Ip validator validates that specified column is a valid internet protocol address.
usstate	bool true	Usstate validator validates that specified column is a valid usstate.