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<?php
/**
* File containing the ezcConsoleQuestionDialogCollectionValidator class.
*
* @package ConsoleTools
* @version 1.6.1
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
* @filesource
*/
/**
* Validator class to validate against a set of valid results.
* This validator class, for {@link ezcConsoleQuestionDialog} objects,
* validates a given result against a set of predefined values.
*
* @package ConsoleTools
* @version 1.6.1
*
* @property array $collection
* The collection of valid answers.
* @property mixed $default
* Default value.
* @property int $conversion
* ezcConsoleDialogValidator::CONVERT_NONE (default) or
* ezcConsoleDialogValidator::CONVERT_LOWER or
* ezcConsoleDialogValidator::CONVERT_UPPER.
*/
class ezcConsoleQuestionDialogCollectionValidator implements ezcConsoleQuestionDialogValidator
{
/**
* Properties.
*
* @var array
*/
protected $properties = array(
"collection" => array(),
"default" => null,
"conversion" => self::CONVERT_NONE,
);
/**
* Creates a new question dialog collection validator.
* Creates a new question dialog collection validator, which validates the
* result specified by the user against an array of valid results
* ($collection). If not value is provided by the user a possibly set
* $default value is used instead. The $conversion parameter can optionally
* define a conversion to be performed on the result before validating it.
* Valid conversions are defined by the CONVERT_* constants in this class.
*
* @param array $collection The collection of valid results.
* @param mixed $default Optional default value.
* @param int $conversion CONVERT_* constant.
* @return void
*/
public function __construct( array $collection, $default = null, $conversion = self::CONVERT_NONE )
{
$this->collection = $collection;
$this->default = $default;
$this->conversion = $conversion;
}
/**
* Returns if the given result is valid.
* Returns if the result is in the $collection array.
*
* @param mixed $result The received result.
* @return bool If the result is valid.
*/
public function validate( $result )
{
return in_array( $result, $this->collection );
}
/**
* Returns a fixed version of the result, if possible.
* Converts the given result according to the conversion defined in the
* $conversion property.
*
* @param mixed $result The received result.
* @return mixed The manipulated result.
*/
public function fixup( $result )
{
if ( $result === "" && $this->default !== null )
{
return $this->default;
}
switch ( $this->conversion )
{
case self::CONVERT_UPPER:
return strtoupper( $result );
case self::CONVERT_LOWER:
return strtolower( $result );
default:
return $result;
}
}
/**
* Returns a string representing valid results.
* Returns the string that will be displayed with the question to
* indicate valid results to the user and a possibly set default, if
* available.
*
* @return string
*/
public function getResultString()
{
return "(" . implode( "/", $this->collection ) . ")" . ( $this->default !== null ? " [{$this->default}]" : "" );
}
/**
* Property read access.
*
* @param string $propertyName Name of the property.
* @return mixed Value of the property or null.
*
* @throws ezcBasePropertyNotFoundException
* If the the desired property is not found.
* @ignore
*/
public function __get( $propertyName )
{
if ( isset( $this->$propertyName ) )
{
return $this->properties[$propertyName];
}
throw new ezcBasePropertyNotFoundException( $propertyName );
}
/**
* Property write access.
*
* @param string $propertyName Name of the property.
* @param mixed $propertyValue The value for the property.
*
* @throws ezcBasePropertyNotFoundException
* If a the value for the property options is not an instance of
* @throws ezcBaseValueException
* If a the value for a property is out of range.
* @ignore
*/
public function __set( $propertyName, $propertyValue )
{
switch ( $propertyName )
{
case "collection":
if ( is_array( $propertyValue ) === false )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, "array" );
}
break;
case "default":
if ( is_scalar( $propertyValue ) === false && $propertyValue !== null )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, "scalar" );
}
break;
case "conversion":
if ( $propertyValue !== self::CONVERT_NONE && $propertyValue !== self::CONVERT_UPPER && $propertyValue !== self::CONVERT_LOWER )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, "ezcConsoleQuestionDialogCollectionValidator::CONVERT_*" );
}
break;
default:
throw new ezcBasePropertyNotFoundException( $propertyName );
}
$this->properties[$propertyName] = $propertyValue;
}
/**
* Property isset access.
*
* @param string $propertyName Name of the property.
* @return bool True is the property is set, otherwise false.
* @ignore
*/
public function __isset( $propertyName )
{
return array_key_exists( $propertyName, $this->properties );
}
}
?>