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<?php
/**
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace DebugKit\Panel;
use Cake\Collection\Collection;
use Cake\Datasource\EntityInterface;
use Cake\Event\Event;
use Cake\Form\Form;
use Cake\ORM\Query;
use Cake\ORM\ResultSet;
use Cake\Utility\Hash;
use Closure;
use DebugKit\DebugPanel;
use Exception;
use InvalidArgumentException;
use PDO;
use RuntimeException;
use SimpleXMLElement;
/**
* Provides debug information on the View variables.
*
*/
class VariablesPanel extends DebugPanel
{
/**
* Extracts nested validation errors
*
* @param EntityInterface $entity Entity to extract
*
* @return array
*/
protected function _getErrors(EntityInterface $entity)
{
$errors = $entity->errors();
foreach ($entity->visibleProperties() as $property) {
$v = $entity[$property];
if ($v instanceof EntityInterface) {
$errors[$property] = $this->_getErrors($v);
} elseif (is_array($v)) {
foreach ($v as $key => $varValue) {
if ($varValue instanceof EntityInterface) {
$errors[$property][$key] = $this->_getErrors($varValue);
}
}
}
}
return Hash::filter($errors);
}
/**
* Safely retrieves debug information from an object
* and applies a callback.
*
* @param callable $walker The walker to apply on the debug info array.
* @param object $item The item whose debug info to retrieve.
*
* @return array|string
*/
protected function _walkDebugInfo(callable $walker, $item)
{
try {
$info = $item->__debugInfo();
} catch (\Exception $exception) {
return __d('debug_kit', 'Could not retrieve debug info - {0}. Error: {1} in {2}, line {3}', get_class($item), $exception->getMessage(), $exception->getFile(), $exception->getLine());
}
return array_map($walker, $info);
}
/**
* Shutdown event
*
* @param \Cake\Event\Event $event The event
* @return void
*/
public function shutdown(Event $event)
{
$controller = $event->getSubject();
$errors = [];
$walker = function (&$item) use (&$walker) {
if ($item instanceof Collection ||
$item instanceof Query ||
$item instanceof ResultSet
) {
try {
$item = $item->toArray();
} catch (\Cake\Database\Exception $e) {
//Likely issue is unbuffered query; fall back to __debugInfo
$item = $this->_walkDebugInfo($walker, $item);
} catch (RuntimeException $e) {
// Likely a non-select query.
$item = $this->_walkDebugInfo($walker, $item);
} catch (InvalidArgumentException $e) {
$item = $this->_walkDebugInfo($walker, $item);
}
} elseif ($item instanceof Closure ||
$item instanceof PDO ||
$item instanceof SimpleXMLElement
) {
$item = 'Unserializable object - ' . get_class($item);
} elseif ($item instanceof Exception) {
$item = sprintf(
'Unserializable object - %s. Error: %s in %s, line %s',
get_class($item),
$item->getMessage(),
$item->getFile(),
$item->getLine()
);
} elseif (is_object($item)) {
if (method_exists($item, '__debugInfo')) {
// Convert objects into using __debugInfo.
$item = $this->_walkDebugInfo($walker, $item);
} else {
try {
serialize($item);
} catch (\Exception $e) {
$item = __d('debug_kit', 'Unserializable object - {0}. Error: {1} in {2}, line {3}', get_class($item), $e->getMessage(), $e->getFile(), $e->getLine());
}
}
} elseif (is_resource($item)) {
$item = sprintf('[%s] %s', get_resource_type($item), $item);
}
return $item;
};
// Copy so viewVars is not mutated.
$vars = $controller->viewVars;
array_walk_recursive($vars, $walker);
foreach ($vars as $k => $v) {
// Get the validation errors for Entity
if ($v instanceof EntityInterface) {
$errors[$k] = $this->_getErrors($v);
} elseif ($v instanceof Form) {
$formError = $v->errors();
if (!empty($formError)) {
$errors[$k] = $formError;
}
}
}
$this->_data = [
'content' => $vars,
'errors' => $errors
];
}
/**
* Get summary data for the variables panel.
*
* @return string
*/
public function summary()
{
if (!isset($this->_data['content'])) {
return '0';
}
return (string)count($this->_data['content']);
}
}