Magento 2 – File Upload Form in Custom Module Frontend

extensionsfile uploadmagento2

I am getting this error when I submit the form from the front end. Although I set the required extension in the setAllowedExtensions

Exception #0 (InvalidArgumentException): Disallowed file type.

if($files!='')
    {
        foreach ($files as $key => $value) {

            $uploaderFactory = $this->uploaderFactory->create(['fileId' => $key]);
            $uploaderFactory->setAllowedExtensions(['jpg', 'jpeg', 'gif', 'png','pdf', 'docx', 'doc']);
            $imageAdapter = $this->adapterFactory->create();
            /* start of validated image */
            $uploaderFactory->addValidateCallback('custom_image_upload',
                $imageAdapter,'validateUploadFile');
            $uploaderFactory->setAllowRenameFiles(true);
            $uploaderFactory->setFilesDispersion(true);
            $mediaDirectory = $this->filesystem->getDirectoryRead(DirectoryList::MEDIA);
            $destinationPath = $mediaDirectory->getAbsolutePath('custom_module');
            $result = $uploaderFactory->save($destinationPath);

            $imagepath = $result['file'];
            //print_r($imagepath);exit;

            $saveData['custom_file'] = $imagepath;
            //$this->model->setData($saveData);

            //$submitModel->setData($saveData);
            //$submitModel->save();
        }
    }

When I upload a jpeg or png it works fine ,but gives error on doc,docx and pdf

Best Answer

The problem with following code

$uploaderFactory->addValidateCallback('custom_image_upload',
                $imageAdapter,'validateUploadFile');

You are using the Image Adapter factory that will not allow you upload the files. You can use File Uploader instead.

Magento\Framework\File\Uploader

Related Solutions

Magento Custom Options – Set File Upload Name

First of all I want to say that you shouldn't use the real name of the file. What if 2 customers upload a file with the same name? The first one will get overwritten.
I suggest you use something like original_file_name_SomeHashHERe.png.
Also don't change the getDispretionPath method from the uploader class.
For 2 reasons: 1. You should never edit the core code. 2. That method is used by multple actions. If you change it it will be changed for all the other actions. You don't want that.

Now a possible solution. The file name is changed in the method Mage_Catalog_Model_Product_Option_Type_File::_validateUploadedFile.
More specific on this line:

$fileHash = md5(file_get_contents($fileInfo['tmp_name']));

Override the method and change that line.
Also the same method can solve you your dispersion path problem.
The line above the one that changes the file name is

$filePath = $dispersion;

Change $dispersion to what ever you need.

Magento – magento2 how to upload image into databse table from front end

I believe you have service contracts, models, and resource models for your DB table in your Module.

public $cvFilePath;

    public function __construct(
        Context $context,
        CustomRepositoryInterface $customRepository,
        \Magento\Framework\Filesystem $filesystem,
        \Magento\MediaStorage\Model\File\UploaderFactory $fileUploaderFactory,
    )
    {
    parent::__construct($context);
        $this->customRepository = $customRepository;
        $this->_mediaDirectory       = $filesystem->getDirectoryWrite(\Magento\Framework\App\Filesystem\DirectoryList::MEDIA);
        $this->_fileUploaderFactory  = $fileUploaderFactory;        
    }


    /**
     * upload applicant's CV
     *
     * @param string $redirectUrl
     *
     * @return string
     * */
    protected function _uploadCV($redirectUrl)
    {
        if(isset($_FILES['cv']['name']) && $_FILES['cv']['name'] != '')
        {
            try
            {
        // files would be saved in the path: magento_root/pub/media/bs_media
                $this->cvFilePath = $this->_mediaDirectory->getAbsolutePath('career/cv/');

                /** @var $uploader \Magento\MediaStorage\Model\File\Uploader */
                $uploader = $this->_fileUploaderFactory->create(['fileId' => 'cv']);

                /** Allowed extension types */
                $uploader->setAllowedExtensions(['doc', 'pdf', 'docx']);

                $uploader->setAllowRenameFiles(TRUE);

                $cvFile = str_replace(' ', '_', $_FILES['cv']['name']);

                /** upload file in folder "career/cv/" */
                $result = $uploader->save($this->cvFilePath, $cvFile);

                if($result['file'])
                {
            // here you would save form data in DB table by repository interface
            // image file name is $result['file']                

                }
            }
            catch (\Exception $e)
            {
                $this->messageManager->addErrorMessage($e->getMessage());
                $this->_redirect($redirectUrl);
                return FALSE;
            }
        }
    }

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