14a09168
 Alex Savenko
init commit
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<?php
namespace common\modules\fileloader\behaviors;
use yii\base\Behavior;
use yii\base\Event;
use yii\db\ActiveQuery;
use yii\db\ActiveRecord;
use yii\validators\Validator;
/**
* Class FileloaderBehavior
* @package common\modules\fileloader\behaviors
*/
class FileloaderBehavior extends Behavior
{
/**
* @var string $fileclass Classname that hande files
*/
public $fileclass = 'common\models\File';
/**
* @var string $relationtable Table name that keeps relation between model and file
*/
public $relationclass = 'common\modules\fileloader\models\FileRelation';
/**
* @var int[] Files ids to insert
*/
public $fileloader = [ ];
/**
* @inheritdoc
*/
public function events()
{
return [
ActiveRecord::EVENT_AFTER_INSERT => 'afterSave',
ActiveRecord::EVENT_AFTER_UPDATE => 'afterSave',
ActiveRecord::EVENT_INIT => 'attachValidator',
];
}
public function attachValidator($event)
{
$validator = Validator::createValidator('safe', $this->owner, 'fileloader');
$this->owner->validators->append($validator);
}
/**
* After saving model delete all relative files and insert new file connections from
* fileloader variable
*
* @param Event $event
*/
public function afterSave($event)
{
/**
* @var ActiveRecord $owner
* @var string $relation
*/
$owner = $this->owner;
$relation = $this->relationclass;
call_user_func([
$relation,
'deleteAll',
], [
'model' => $owner->className(),
'model_id' => $owner->primaryKey,
]);
if(!empty( $owner->fileloader )) {
foreach($owner->fileloader as $file) {
/**
* @var ActiveRecord $model
*/
$model = new $relation([
'file_id' => $file,
'model' => $owner->className(),
'model_id' => $owner->primaryKey,
'user_id' => \Yii::$app->user->getId(),
'status' => 1,
]);
if($model->validate()) {
$model->save(false);
}
unset( $model );
}
}
}
/**
* Bind owner class tp specified $fileclass via $relationclass table.
* @return ActiveQuery
*/
public function getFileloaderFiles()
{
/**
* @var ActiveRecord $owner
*/
$owner = $this->owner;
$relationtable = call_user_func([
$this->relationclass,
'tableName',
]);
return $owner->hasMany($this->fileclass, [ 'file_id' => 'file_id' ])
->viaTable($relationtable, [ 'model_id' => $owner->primaryKey()[ 0 ] ], function($query) use ($owner) {
/**
* @var ActiveQuery $query
*/
$query->andWhere([
'model' => $owner->className(),
'status' => 1,
]);
});
}
}
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