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Dynamic uploaded filename

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Viewing 7 posts - 1 through 7 (of 7 total)
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  • March 8, 2022 at 12:03 AM #34372
    EliodataEliodata
    Participant

    Hi,

    Is it possible to dynamically rename a file uploaded with the "file "custom field please?
    I have red some tips about unique_filename_callback function, but it is beyond my level...
    I would like to add a prefix with the username and some text to each uploaded files.

    The files are uploaded to a custom folder, you already helped me to do it here:
    https://support.metabox.io/topic/file-custom-field-upload-to-dynamic-directory/

    Best regards

    March 8, 2022 at 6:58 PM #34396
    Long NguyenLong Nguyen
    Moderator

    Hi,

    Here is an example to add the text 1234 to the file name:

    function my_unique_filename_callback( $dir, $name, $ext ) {
    $name = $name . '1234';
    return $name . $ext;
}

add_filter( 'rwmb_meta_boxes', 'your_prefix_function_name' );
function your_prefix_function_name( $meta_boxes ) {

    $meta_boxes[] = [
        'title'  => __( 'Post Meta', 'your-text-domain' ),
        'id'     => 'post-meta',
        'fields' => [
            [
                'name'                     => __( 'File', 'your-text-domain' ),
                'id'                       => 'file',
                'type'                     => 'file',
                'upload_dir'               => WP_CONTENT_DIR . '/invoices/',
                'unique_filename_callback' => 'my_unique_filename_callback',
            ],
        ],
    ];
    return $meta_boxes;
}

    Refer to this topic https://stackoverflow.com/questions/27571023/override-wp-unique-filename

    March 8, 2022 at 8:36 PM #34401
    EliodataEliodata
    Participant

    Thank you for your support!

    Your example works for a text prefix, but I don't know how to add username as a prefix too. Here is my code:

    <div>

function my_unique_filename_callback( $dir, $name, $ext ) {
    $name = 'emargements_' . $name;
    return $name . $ext;
}

add_filter( 'rwmb_meta_boxes', 'metabox_file_upload_formateurs_emargements' );

function metabox_file_upload_formateurs_emargements( $meta_boxes ) {
    $prefix = '';
    $current_user = wp_get_current_user();
    $user_login = $current_user->user_login;

$meta_boxes[] = [
    'title'      => __( 'Documents formateurs', 'your-text-domain' ),
    'id'         => 'documents-formateurs',
    'fields'     => [
        [
            'id'   => $prefix . 'file_docformateursemarge',
            'name' => __( 'Documents formateurs émargements', 'your-text-domain' ),
            'type' => 'file',
            'upload_dir' => ABSPATH . 'myfile/' . $user_login . '/emargements',
            'unique_filename_callback' => 'my_unique_filename_callback',
        ],
    ],
];

return $meta_boxes;

}

</div>
    March 8, 2022 at 8:54 PM #34402
    EliodataEliodata
    Participant

    I can't edit, sorry for the code.

    March 9, 2022 at 1:22 PM #34422
    Long NguyenLong Nguyen
    Moderator

    Hi,

    You can use the function to get the user login name as the code that registers the meta box to add the user name to the file name.

    function my_unique_filename_callback( $dir, $name, $ext ) {
    $current_user = wp_get_current_user();
    $user_login = $current_user->user_login;
    $name = 'emargements_' . $user_login . '_' . $name;
    return $name . $ext;
}
    March 9, 2022 at 7:38 PM #34428
    EliodataEliodata
    Participant

    It's ok, thank you again!
    Last question... each time I send a file wordpress creates a new post with attached file. Is it possible to skip this?
    And the the uploaded file is renamed with the extension. myfile.png becomes username_myflie.png.png

    January 10, 2024 at 9:47 AM #44256
    Aaron KesslerAaron Kessler
    Participant

    The unique_filename_callback parameters are not documented, nor is the return value in https://docs.metabox.io/fields/file/

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