af036678
 Yarik
Image behaviors
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<?php
namespace common\behaviors;
use yii\base\Behavior;
use yii\base\Event;
use yii\db\ActiveRecord;
use yii\web\UploadedFile;
/**
* Class SaveMultipleFileBehavior
*
* @todo Write validators
*
* @package common\behaviors
*/
class SaveMultipleFileBehavior extends Behavior
{
/**
* $owner attribute to write files
* @var string
*/
public $name;
/**
* Directory to store files
* @var string
*/
public $directory;
/**
* Column in $model where to store filename
* @var string
*/
public $column;
/**
* key - owner link attribute (usual ID), value - $model link attribute
* @var array
*/
public $links = [];
/**
* Full namespaced classname of file table
* @var string
*/
public $model;
public function events()
{
return [
ActiveRecord::EVENT_AFTER_UPDATE => 'downloadFiles',
ActiveRecord::EVENT_AFTER_INSERT => 'downloadFiles',
];
}
/**
* Save files to file table
*
* @param Event $event
*/
public function downloadFiles($event)
{
/**
* @var ActiveRecord $owner
*/
$owner = $this->owner;
$name = $this->name;
$owner->$name = UploadedFile::getInstances($owner, $name);
if(!empty( $files = $this->filesUpload() )) {
$model = $this->model;
$links = $this->links;
$column = $this->column;
foreach($files as $file) {
/**
* @var ActiveRecord $fileModel
*/
$fileModel = new $model();
foreach($links as $link_owner => $link) {
$fileModel->$link = $owner->$link_owner;
}
$fileModel->$column = $file;
$fileModel->save();
}
}
$this->detach();
}
/**
* Save files to file system
*
* @return array
*/
private function filesUpload()
{
$owner = $this->owner;
$name = $this->name;
$directory = $this->directory;
$fileDir = \Yii::getAlias('@storage/' . $directory . '/');
if(!is_dir($fileDir)) {
mkdir($fileDir, 0755, true);
}
$files = [];
/**
* @var UploadedFile $file
*/
foreach($owner->$name as $file) {
$fileName = $file->baseName . '.' . $file->extension;
$i = 0;
while(file_exists(\Yii::getAlias($fileDir . $fileName))) {
$fileName = $file->baseName . '_' . ++$i . '.' . $file->extension;
}
$file->saveAs($fileDir . $fileName);
$files[] = $fileName;
}
return $files;
}
}
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