README

This module simplifies handling of async uploads. It provides special Session object, that links uploaded files with your model, so you can easily process them later. Based on 2amigos/yii2-file-upload-widget

Installation

Add "chabberwock/yii2-files": "*" to "require" section of your composer.json

Once module is installed, add it to modules section of config

        'files' => [
            'class' => 'chabberwock\files\Module',
            'uploadDir' => __DIR__ . '/../uploads/temp', // temporary storage dir
            'expires' => 3600, // when old uploaded files should be removed
        ],

and to the bootstrap section

    'bootstrap' => ['files']

Usage

In view:

    // Basic upload
    <?= $form->field($model, 'session_id')->widget('\chabberwock\files\FileUpload') ?>
    // Basic plus UI upload
    <?= $form->field($model, 'session_id')->widget('\chabberwock\files\FileUploadUI') ?>

Where 'session_id' is a string attribute. Once model is submitted, session_id will contain id of session, and can be easily accessed:

    $session = Yii::$app->getModule('files')->findSession($model->session_id);
    foreach ($session->listFiles() as $file) {
        $session->moveFile($file, '/public/uploads');
    }

Module events

Module generates event on every file upload, that can be used to handle files:

        Yii::$app->on('files.upload', function ($event) use ($app) {
            /** @var \chabberwock\files\Session */
            $session = $event->session;
            if (isset($session->meta['target']) && $session->meta['target'] == 'embed') {
                $file = $event->file;
                $newname = uniqid() . '.' . $file->ext;
                $dirParts = [
                    '/uploads/embed',
                    date('Y'),
                    date('m'),
                    date('d'),
                    $newname
                ];
                $path = $app->basePath . implode(DIRECTORY_SEPARATOR, $dirParts);
                if (!file_exists(dirname($path))) {
                    mkdir(dirname($path), 0755, true);    
                }
                $session->moveFile($file, $path);
                chmod($path, 0755);
                $file->url = implode('/', $dirParts);
            }
        });