Form: cannot upload file using #type 'file'

Hi vasi,

here is the code, hope it is not to long.

- the module name is Zimple
- the idea is to get a filename using the settings menu
- that file name will contain information about the form to display when requested later from the main menu.

- $_ZIMPLE is the array that i thought that i would use to hold the variables that i need in my module. is there a better way to deal with this?

I think i may have found one error... that is in copying the $_FILE into $_ZIMPLE. I am not sure if the "=" means by reference, in which case i cannot find the $_FILES values in $_ZIMPLE.

<?php
// $Id$: zimple.module, v0.001 2009/10/23 00:25:00

//  Include Files
//include_once 'myFunc.php';

global $_ZIMPLE;
$_ZIMPLE = array();

//---------------------------------------------------------------------//
//---------------------------------------------------------------------//
function zimple_help($path, $arg) {
  global $_ZIMPLE;

  $output = '';  //declare your output variable
  switch ($path) {
    case "admin/help#zimple":
      $output = '<p>'.  "Create a form specified by an zimple file." .'</p>';
      break;
  }
  return $output;
} // function zimple_help

//---------------------------------------------------------------------//
//---------------------------------------------------------------------//
function zimple_menu() {
  global $_ZIMPLE;

  $items = array();

  $items['admin/settings/zimple'] = array(
    'title' => 'Zimple settings',
    'description' => 'Description of zimple Module',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('zimple_admin'),    // Add more arguments in this array if needed.
    'access arguments' => array('access administration pages'),
    'type' => MENU_NORMAL_ITEM,
   );

  //Let our menu know of our function that generates a page zimple_my_page()
  $items['zimple'] = array(
    'title' => 'Zimple',
    'page callback' => 'zimple_my_page',
    'page arguments' => array('zimple_my_page'),   // Add more arguments in this array if needed.
    'access arguments' => array('access zimple content'),
    'type' => MENU_NORMAL_ITEM
    //'type' => MENU_CALLBACK,
  );

  return $items;
} 

//---------------------------------------------------------------------//
//---------------------------------------------------------------------//
function zimple_admin(){
  global $_ZIMPLE;

    // Make sure Directory for uploads exists. create if not.
    $uploads_path = file_create_path('sites/default/files/zimple/uploads');
    if (!file_check_directory($path)) {
      $uploads_path = file_directory_path() . '/zimple';
      file_check_directory($uploads_path, FILE_CREATE_DIRECTORY);
      $uploads_path .= '/uploads';
      file_check_directory($uploads_path, FILE_CREATE_DIRECTORY);
    }
    $_ZIMPLE[uploads_path] = $uploads_path;

  // Form components:  an input type 'file' for now.
  $zimple_form = array();
  $zimple_form['#attributes']['enctype'] = "multipart/form-data";

  $zimple_form['zimple_filename'] = array(
    '#type' => 'file',
    '#title' => t('Enter Path to import File'),
    '#description' => t('Click "Browse" to select a file to upload.'),
    );

  return system_settings_form($zimple_form); 
}   //end of function zimple_admin

//---------------------------------------------------------------------//
//                        hook zimple_admin_validate
//     Validate the Settings Form 
//---------------------------------------------------------------------//
function zimple_admin_validate($form, &$form_state){ 
  global $_ZIMPLE;

  $validators = array(
    'file_validate_extensions' => array('zimple'),
    'file_validate_size' => array(10* 1024 * 1024),
    //'file_validate_is_image' => array(),
    //'file_validate_image_resolution' => array(variable_get('user_picture_dimensions', '85x85')),
  );

   $uploads_path = $_ZIMPLE[uploads_path];
   drupal_set_message("uploads_path = $uploads_path", 'status');

   $_ZIMPLE[_FILES] = $_FILES;
   $zimple_filename = $_ZIMPLE[_FILES][files][name][zimple_filename];
   drupal_set_message("zimple_filename = $zimple_filename", 'status');

   $dest_file = $uploads_path . $zimple_filename;
   drupal_set_message("dest_file = $dest_file", 'status');

if (isset($_FILES['files']) && is_uploaded_file($_FILES['files']['tmp_name'][zimple_filename])) {
   $saved_file = file_save_upload('zimple_filename', $validators, $uploads_path);// works.

   if(!$saved_file){
      drupal_set_message('The uploaded file was unable to be saved.', 'warning');
      form_set_error($zimple_filename, 'Error uploading file.');
   }
   else {
      drupal_set_message('The uploaded file %zimple_filename was saved.', 'status');
      $form_state['values']['zimple_filename'] = $saved_file;
       $_ZIMPLE[_FILES][files][name][zimple_filename] = $zimple_filename;
   }
   }
  drupal_set_message('<pre>'. 'zimple_validate:_ZIMPLE: ' . var_export($_ZIMPLE, TRUE) .'</pre>');
}   // end of function  zimple_validate

//---------------------------------------------------------------------//
//               hook My_page
//  This is where we create our page.
//  Same as zimple_block, but generates a Page content instead of a block
//---------------------------------------------------------------------//
function zimple_my_page() {
  global $_ZIMPLE;

  drupal_set_message('<pre>'. 'zimple_validate:_ZIMPLE: ' . var_export($_ZIMPLE, TRUE) .'</pre>');

  $uploads_path    = $_ZIMPLE[uploads_path];
  $zimple_filename = $_ZIMPLE[_FILES][files][name][zimple_filename];

  //$dest_file = $uploads_path . $zimple_filename;
  //drupal_set_message("dest_file = $dest_file", 'status');

  //$zimple_ar = drupal_get_form('zimple_form');

  return TRUE;//$zimple_ar;
}   // end of function zimple_my_page


//---------------------------------------------------------------------//
//   generate the code for the form by running zimple_parse on the zimple fie.
//---------------------------------------------------------------------//
function zimple_form(){
  global $_ZIMPLE;

   $uploads_path = $_ZIMPLE[uploads_path];
   $zimple_filename = $_ZIMPLE[_FILES][files][name][zimple_filename];

   $dest_file = $uploads_path . $zimple_filename;

   drupal_set_message("dest_file = $dest_file", 'status');

  $zimple_ar = zimple_parse($dest_file);

  return $zimple_ar;
}   //   end of function zimple_form