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doctrine2/Doctrine/Validator.php
2006-08-15 21:32:59 +00:00

270 lines
7.9 KiB
PHP

<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
*/
/**
* Doctrine_Validator
* Doctrine_Validator performs validations in record properties
*
* @package Doctrine ORM
* @url www.phpdoctrine.com
* @license LGPL
*/
class Doctrine_Validator {
/**
* ERROR CONSTANTS
*/
/**
* constant for length validation error
*/
const ERR_LENGTH = 0;
/**
* constant for type validation error
*/
const ERR_TYPE = 1;
/**
* constant for general validation error
*/
const ERR_VALID = 2;
/**
* constant for unique validation error
*/
const ERR_UNIQUE = 3;
/**
* constant for blank validation error
*/
const ERR_NOTBLANK = 4;
/**
* constant for date validation error
*/
const ERR_DATE = 5;
/**
* constant for null validation error
*/
const ERR_NOTNULL = 6;
/**
* constant for enum validation error
*/
const ERR_ENUM = 7;
/**
* constant for range validation error
*/
const ERR_RANGE = 8;
/**
* @var array $stack error stack
*/
private $stack = array();
/**
* @var array $validators an array of validator objects
*/
private static $validators = array();
/**
* @var Doctrine_Null $null a Doctrine_Null object used for extremely fast
* null value testing
*/
private static $null;
/**
* initNullObject
*
* @param Doctrine_Null $null
* @return void
*/
public static function initNullObject(Doctrine_Null $null) {
self::$null = $null;
}
/**
* returns a validator object
*
* @param string $name
* @return Doctrine_Validator_Interface
*/
public static function getValidator($name) {
if( ! isset(self::$validators[$name])) {
$class = "Doctrine_Validator_".ucwords(strtolower($name));
if(class_exists($class)) {
self::$validators[$name] = new $class;
} elseif(class_exists($name."Validator")) {
self::$validators[$name] = new $name."Validator";
} else
throw new Doctrine_Exception("Validator named '$name' not availible.");
}
return self::$validators[$name];
}
/**
* validates a given record and saves possible errors
* in Doctrine_Validator::$stack
*
* @param Doctrine_Record $record
* @return void
*/
public function validateRecord(Doctrine_Record $record) {
$columns = $record->getTable()->getColumns();
$name = $record->getTable()->getComponentName();
switch($record->getState()):
case Doctrine_Record::STATE_TDIRTY:
case Doctrine_Record::STATE_TCLEAN:
// all fields will be validated
$data = $record->getData();
break;
default:
// only the modified fields will be validated
$data = $record->getModified();
endswitch;
$err = array();
foreach($data as $key => $value) {
if($value === self::$null)
$value = null;
$column = $columns[$key];
if($column[0] == "enum") {
$value = $record->getTable()->enumIndex($key, $value);
if($value === false) {
$err[$key] = Doctrine_Validator::ERR_ENUM;
continue;
}
}
if($column[0] == "array" || $column[0] == "object")
$length = strlen(serialize($value));
else
$length = strlen($value);
if($length > $column[1]) {
$err[$key] = Doctrine_Validator::ERR_LENGTH;
continue;
}
$e = explode("|",$column[2]);
foreach($e as $k => $arg) {
if(empty($arg) || $arg == "primary" || $arg == "protected" || $arg == "autoincrement")
continue;
$args = explode(":",$arg);
if( ! isset($args[1]))
$args[1] = '';
$validator = self::getValidator($args[0]);
if( ! $validator->validate($record, $key, $value, $args[1])) {
$constant = 'Doctrine_Validator::ERR_'.strtoupper($args[0]);
if(defined($constant))
$err[$key] = constant($constant);
else
$err[$key] = Doctrine_Validator::ERR_VALID;
// errors found quit validation looping for this column
break;
}
}
if( ! self::isValidType($value, $column[0])) {
$err[$key] = Doctrine_Validator::ERR_TYPE;
continue;
}
}
if( ! empty($err)) {
$this->stack[$name][] = $err;
return false;
}
return true;
}
/**
* whether or not this validator has errors
*
* @return boolean
*/
public function hasErrors() {
return (count($this->stack) > 0);
}
/**
* returns the error stack
*
* @return array
*/
public function getErrorStack() {
return $this->stack;
}
/**
* returns whether or not the given variable is
* valid type
*
* @param mixed $var
* @param string $type
* @return boolean
*/
public static function isValidType($var, $type) {
if($type == 'boolean')
return true;
$looseType = self::gettype($var);
if($type == 'enum')
$type = 'integer';
switch($looseType):
case 'float':
case 'double':
case 'integer':
if($type == 'string' || $type == 'float')
return true;
case 'string':
case 'array':
case 'object':
return ($type === $looseType);
break;
case 'NULL':
return true;
break;
endswitch;
}
/**
* returns the type of loosely typed variable
*
* @param mixed $var
* @return string
*/
public static function gettype($var) {
$type = gettype($var);
switch($type):
case 'string':
if(preg_match("/^[0-9]+$/",$var))
return 'integer';
elseif(is_numeric($var))
return 'float';
else
return $type;
break;
default:
return $type;
endswitch;
}
}
?>