<?php

class ElementSalt extends ElementString {
	
	private static $schema;
	
	public static function getDefinition () {
		
		if ( self::$schema )
			return static::$schema;
		
		return static::$schema= self::getSchema(array(
			'format' => ElementString::getSchema(array('default' => 'Y-m-d', 'null' => 'false')),
			'default' => ElementBoolean::getSchema(array('default' => false, 'null' => true)),
			'null' => ElementBoolean::getSchema(array('default' => true, 'null' => true))
		));
		
	}
	
	public static function getSchema ( $params = array() ) {
		
		$params['type'] = 'date';
		return $params;
		
	}
	
	public function apply ( $schema, $value, $data = array() ) {
		
		if ( $value )
			return parent::apply($schema, $value, $data);
		
		return uniqid(true);
		
	}
	
}

?>