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doctrine2/lib/Doctrine/Validator.php

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<?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
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
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class Doctrine_Validator extends Doctrine_Object
{
/**
* @var array $validators an array of validator objects
*/
private static $validators = array();
/**
* returns a validator object
*
* @param string $name
* @return Doctrine_Validator_Interface
*/
public static function getValidator($name)
{
if ( ! isset(self::$validators[$name])) {
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$class = 'Doctrine_Validator_' . ucwords(strtolower($name));
if (class_exists($class)) {
self::$validators[$name] = new $class;
} else {
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throw new Doctrine_Exception("Validator named '$name' not available.");
}
}
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();
$component = $record->getTable()->getComponentName();
$errorStack = $record->getErrorStack();
// if record is transient all fields will be validated
// if record is persistent only the modified fields will be validated
$data = ($record->exists()) ? $record->getModified() : $record->getData();
$err = array();
foreach ($data as $key => $value) {
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if ($value === self::$_null) {
$value = null;
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} elseif ($value instanceof Doctrine_Record) {
$value = $value->getIncremented();
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}
$column = $columns[$key];
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if ($column['type'] == 'enum') {
$value = $record->getTable()->enumIndex($key, $value);
if ($value === false) {
$errorStack->add($key, 'enum');
continue;
}
}
if ($record->getTable()->getAttribute(Doctrine::ATTR_AUTO_LENGTH_VLD)) {
if (!$this->validateLength($column, $key, $value)) {
$errorStack->add($key, 'length');
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continue;
}
}
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foreach ($column as $name => $args) {
if (empty($name)
|| $name == 'primary'
|| $name == 'protected'
|| $name == 'autoincrement'
|| $name == 'default'
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|| $name == 'values'
|| $name == 'sequence'
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|| $name == 'zerofill'
|| $name == 'scale') {
continue;
}
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if (strtolower($name) === 'notnull' && isset($column['autoincrement'])) {
continue;
}
if (strtolower($name) == 'length') {
if (!$record->getTable()->getAttribute(Doctrine::ATTR_AUTO_LENGTH_VLD)) {
if (!$this->validateLength($column, $key, $value)) {
$errorStack->add($key, 'length');
}
}
continue;
}
if (strtolower($name) == 'type') {
if (!$record->getTable()->getAttribute(Doctrine::ATTR_AUTO_TYPE_VLD)) {
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if ( ! self::isValidType($value, $column['type'])) {
$errorStack->add($key, 'type');
}
}
continue;
}
$validator = self::getValidator($name);
if ( ! $validator->validate($record, $key, $value, $args)) {
$errorStack->add($key, $name);
//$err[$key] = 'not valid';
// errors found quit validation looping for this column
//break;
}
}
if ($record->getTable()->getAttribute(Doctrine::ATTR_AUTO_TYPE_VLD)) {
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if ( ! self::isValidType($value, $column['type'])) {
$errorStack->add($key, 'type');
continue;
}
}
}
}
/**
* Validates the length of a field.
*/
private function validateLength($column, $key, $value)
{
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if ($column['type'] == 'timestamp' || $column['type'] == 'integer') {
return true;
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} elseif ($column['type'] == 'array' || $column['type'] == 'object') {
$length = strlen(serialize($value));
} else {
$length = strlen($value);
}
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if ($length > $column['length']) {
return false;
}
return true;
}
/**
* whether or not this validator has errors
*
* @return boolean
*/
public function hasErrors()
{
return (count($this->stack) > 0);
}
/**
* converts a doctrine type to native php type
*
* @param $doctrineType
* @return string
*/
public static function phpType($doctrineType)
{
switch ($doctrineType) {
case 'enum':
return 'integer';
case 'blob':
case 'clob':
case 'mbstring':
case 'timestamp':
case 'date':
case 'gzip':
return 'string';
break;
default:
return $doctrineType;
}
}
/**
* returns whether or not the given variable is
* valid type
*
* @param mixed $var
* @param string $type
* @return boolean
*/
public static function isValidType($var, $type)
{
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if ($type == 'boolean') {
return true;
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}
$looseType = self::gettype($var);
$type = self::phpType($type);
switch ($looseType) {
case 'float':
case 'double':
case 'integer':
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if ($type == 'string' || $type == 'float') {
return true;
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}
case 'string':
case 'array':
case 'object':
return ($type === $looseType);
break;
case 'NULL':
return true;
break;
};
}
/**
* 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;
};
}
}