Я загружаю файлы и хочу сообщить пользователю, хочет ли он удалить или перезаписать свой предыдущий файл ... поэтому я хочу показать всплывающее окно с действием контроллера перед удалением, поэтому, если пользователь говорит, что да, файл будет будет перезаписано, если не будет, ставится метка времени перед предыдущим именем файла ...
Это возможно?
Вот мой код ...
<?php
class AttachableBehavior extends ModelBehavior {
var $_defaults = array( 'label' => 'attachment',
'location' => 'files',
'errorMessages' => array('isUploaded' => 'Malicious file upload.',
'moveUploaded' => 'Error moving file upload.',
'isValidType' => 'Invalid file type. Please check your file type and try again.',
'isValidSize' => 'Invalid file size. Please check your file size and try again.'
),
'thumbQuality' => 80,
'maxSize' => '1048576',
'fields' => array('attachmentLocation' => 'attachmentLocation',
'attachmentWidth' => 'attachmentWidth',
'attachmentHeight' => 'attachmentHeight',
'attachmentName' => 'attachmentName',
'attachmentType' => 'attachmentType',
'attachmentSize' => 'attachmentSize'),
);
var $_validThumbTypes = array('image/jpeg', 'image/pjpeg');
var $_attachmentRoot = null;
var $_errorMsg = "Error uploading file";
var $settings = array();
var $model = null;
function setup(&$model, $config = array())
{
$this->settings[$model->name] = array_merge($this->_defaults, $config);
$this->model = $model;
$this->_attachmentRoot = WWW_ROOT . str_replace(array('/', '\\'), array(DS,DS), $this->settings[$model->name]['location']) . DS;
}
function beforeSave(&$model)
{
extract($this->settings[$model->name]);
$attachment = $model->data[$model->name][$label];
if (!empty($attachment['name']))
{
$model->data[$model->name][$fields['attachmentName']] = ($this->_fileExists($this->_attachmentRoot . $attachment['name'])) ? time() . '_' . $attachment['name'] : $attachment['name'];
$model->data[$model->name][$fields['attachmentType']] = $attachment['type'];
$model->data[$model->name][$fields['attachmentSize']] = $attachment['size'];
$model->data[$model->name][$fields['attachmentLocation']] = $location;
if ($model->id > 0)
{
$record = $model->findById($model->id);
$this->_deleteAttachments($record[$model->name][$fields['attachmentName']]);
}
if (!$this->_isUploaded($attachment) ||
!$this->_isValidSize($attachment['size']) ||
!$this->_isValidType($attachment) ||
!$this->_dirExists($this->_attachmentRoot) ||
!$this->_moveUploaded($attachment['tmp_name'], $model->data[$model->name][$fields['attachmentName']])
)
{
$model->validationErrors[$label] = $this->_errorMsg;
return false;
}
if (in_array($attachment['type'], $this->_validThumbTypes))
{
list($width, $height) = getimagesize($this->_attachmentRoot . $model->data[$model->name][$fields['attachmentName']]);
$model->data[$model->name][$fields['attachmentWidth']] = $width;
$model->data[$model->name][$fields['attachmentHeight']] = $height;
if (isset($this->settings[$model->name]['thumbnails']))
{
foreach ($this->settings[$model->name]['thumbnails'] as $dir => $size)
{
list($width, $height) = explode('x', strtolower($size));
if($this->_dirExists($this->_attachmentRoot . $dir))
{
$this->_resizeToThumb($model->data[$model->name][$fields['attachmentName']], $dir, $width, $height);
}
}
}
}
}
else
{
$model->validationErrors[$label] = $this->_errorMsg;
return false;
}
// pr($attachment);
// exit();
return true;
}
function beforeDelete(&$model)
{
$model->read(null, $model->id);
$this->_deleteAttachments($model->data[$model->name]['attachmentName']);
return true;
}
# protected methods
function _moveUploaded($tmpName, $attachmentName)
{
if (move_uploaded_file($tmpName, $this->_attachmentRoot . $attachmentName ))
{
return true;
}
$this->_errorMsg = $this->settings[$this->model->name]['errorMessages']['moveUploaded'];
return false;
}
function _isUploaded($attachment)
{
if (isset($attachment['error']) && $attachment['error'] == 0 || !empty($attachment['tmp_name']) && $attachment['tmp_name'] != 'none')
{
return is_uploaded_file($attachment['tmp_name']);
}
$this->_errorMsg = $this->settings[$this->model->name]['errorMessages']['isUploaded'];
return false;
}
function _isValidType($attachment)
{
$ext = substr($attachment['name'], strrpos($attachment['name'], '.') + 1);
if (isset($this->settings[$this->model->name]['types'][$attachment['type']]) &&
$ext == $this->settings[$this->model->name]['types'][$attachment['type']])
{
return true;
}
$this->_errorMsg = $this->settings[$this->model->name]['errorMessages']['isValidType'];
return false;
}
function _isValidSize($size)
{
if($size == 0) return false;
if ($size <= $this->settings[$this->model->name]['maxSize'])
{
return true;
}
$this->_errorMsg = $this->settings[$this->model->name]['errorMessages']['isValidSize'];
return false;
}
function _dirExists($dir)
{
if (!file_exists($dir))
{
trigger_error(__("AttachableBehavior Error - Please create '{$dir}' directory and set permissions for uploading.", true), E_USER_WARNING);
return false;
}
return true;
}
function _fileExists($file)
{
if (file_exists($file))
{
return true;
}
return false;
}
function _deleteFile($file)
{
if (file_exists($file))
{
return unlink($file);
}
return false;
}
function _deleteAttachments($attachment)
{
$this->_deleteFile($this->_attachmentRoot . $attachment);
if (isset($this->settings[$this->model->name]['thumbnails']))
{
foreach ($this->settings[$this->model->name]['thumbnails'] as $dir => $size)
{
if ($this->_fileExists($this->_attachmentRoot . $dir . DS . $attachment) && !empty($attachment))
{
$this->_deleteFile($this->_attachmentRoot . $dir . DS . $attachment);
}
}
}
}
function _resizeToThumb($imgName, $dir, $canvasWidth, $canvasHeight)
{
$img = $this->_attachmentRoot . $imgName;
list($imgWidth, $imgHeight) = getimagesize($img);
$ratioOrig = $imgWidth / $imgHeight;
if(($canvasWidth / $canvasHeight) > $ratioOrig)
{
$canvasWidth = $canvasHeight * $ratioOrig;
}
else
{
$canvasHeight = $canvasWidth / $ratioOrig;
}
$original = imagecreatefromjpeg($img);
$canvas = imagecreatetruecolor($canvasWidth, $canvasHeight);
imagecopyresampled($canvas, $original, 0, 0, 0, 0, $canvasWidth, $canvasHeight, $imgWidth, $imgHeight);
$createJpg = imagejpeg($canvas, $this->_attachmentRoot . $dir . DS . $imgName, $this->settings[$this->model->name]['thumbQuality']);
imagedestroy($canvas);
imagedestroy($original);
if($createJpg)
{
return true;
}
return false;
}
}
?>