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Unable to upload files with 'file' form field, Ajax and AHAH helper modules

Posted by cyb on September 20, 2009 at 2:45pm
Project:AHAH helper
Version:6.x-2.0
Component:Code
Category:bug report
Priority:normal
Assigned:Unassigned
Status:closed (duplicate)

Issue Summary

I'm writing a Drupal 6 module from scratch that needs uploading files in Ajax and I'm apparently hit by an incompatibility between Ajax, AHAH helper and 'file' type forms fields.

Here is the code that reproduces the issue:

<?php
function cdp_perm() {
    return array('access CDP application form');
}

function cdp_menu() {

    $items = array();

    $items['cdp/application'] = array(
        'title' => t('Application form'),
        'page callback'    => 'drupal_get_form',
        'page arguments'   => array('cdp_application_form'),
        'access callback'  => TRUE,
        'access arguments' => array('access CDP application form'),
        'type' => MENU_CALLBACK
    );

    return $items;
}

function cdp_application_form($form_state) {

    $form=array();

    ahah_helper_register($form, $form_state);

    $form['#ajax'] = array('enabled' => TRUE);

    $form['#attributes']['enctype'] = 'multipart/form-data';

    $form['visual'] = array(
        '#type' => 'fieldset',
        '#title' => t('Visual of the project'),
        '#prefix' => '<div id="visual-wrapper">',
        '#suffix' => '</div>',
        '#tree'   => TRUE,
    );

    $form['visual']['file'] = array(
        '#type' => 'file',
        '#title' => t('File'),
    );

    $form['visual']['upload'] = array(
        '#type'  => 'submit',
        '#value' => t('Upload'),
        '#submit' => array('cdp_uploadhack_submit'),
    );

    $form['submit'] = array('#type' => 'submit',
                            '#value' => t('Save'),
                            );
    return $form;
}

function cdp_application_form_submit($form, &$form_state) {
  drupal_set_message(t('You have successfully submitted your project.'));
}

function cdp_uploadhack_submit($form, &$form_state) {
    $form_state['rebuild'] = TRUE;

    if($file=file_save_upload('visual')) {
        drupal_set_message(t('upload ok'));
    }
    else {
        drupal_set_message(t('Nothing uploaded'), 'warning');
    }


}
?>

The upload form is broken, you get the extroardinary helpful error message "ajax.module: An unknown error has occurred.".

If you comment « $form['#ajax'] = array('enabled' => TRUE); », it just work but Ajax is indeed not supported anymore for error reporting.

It look related to http://drupal.org/node/399676 but the work-around does not work.

If anyone know how to fix it, I would be thankful.

Regards,

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Comments

#1

Posted by pobster on September 20, 2009 at 7:31pm

The issue is likely that you're not following the instructions at all for ahah_helper. Try taking a look at the example module given; http://cvs.drupal.org/viewvc.py/drupal/contributions/modules/ahah_helper...

You're supposed to use '#path' => ... to allow ahah_helper to do its magic.

Pobster

#2

Posted by jbrown on September 20, 2009 at 7:32pm

I installed your module and it is working just fine on my local D6 install.

Are you able to replicate the problem on a publicly visible site so I could take a look?

Have you tried testing with smaller files?

#3

Posted by brendoncrawford on September 21, 2009 at 8:10am

I am the author of the AJAX module. AFAIK, the Ajax module and AHAH do not play nicely together. Getting them to do so, might be a fairly large task.

#4

Posted by pavaniakella on November 30, 2009 at 10:37am

Hi,

Did u get any solution Now I am facing the same problem.
Please help me if u get any solution..

Regards,
Pavani

#5

Posted by kenorb on May 13, 2010 at 2:32pm
Status:active» closed (duplicate)

#83698: $source parameter in file_save_upload() not work as expected when field is in a fieldset with #tree set to TRUE