lithium\data\DocumentSchema::_castType()

protected method

Casts a scalar (non-object/array) value to its corresponding database-native value or custom value object based on a handler assigned to $field's data type.

Parameters

mixed $value
The value to be cast.
string $field
The name of the field that $value is or will be stored in. If it is a nested field, $field should be the full dot-separated path to the sub-object's field.

Returns

mixed

Returns the result of $value, modified by a matching handler data type handler, if available.

Source

	protected function _castType($value, $field) {
		if ($this->is('null', $field) && ($value === null || $value === "")) {
			return null;
		}
		if (!is_scalar($value)) {
			return $value;
		}
		$type = $this->type($field);
		return isset($this->_handlers[$type]) ? $this->_handlers[$type]($value) : $value;
	}