modules/unique_avatar/unique_avatar.module

<?php
// $Id: unique_avatar.module,v 1.1 2008/01/29 18:08:51 jscheel Exp $

/**
 * @file unique_avatar.module
 *
 * Full module implementation, creates unique user picture filenames
 */

/**
 * Implementation of hook_user()
 */
function unique_avatar_user($type, &$edit, &$user, $category = NULL) {
  if ($type == 'submit' && $category == 'account') {
    
    //Is the user picture being modified?
    $file = file_check_upload('picture_upload');
    if ($file) {
      $info = image_get_info($file->filepath);
      
      //Rename picture with unique id
      $dest = variable_get('user_picture_path', 'pictures') .'/picture-'. $user->uid . '-' . md5(time()) . '.' . $info['extension'];
      if (file_move($file->filepath, $dest)) {
        
        //Clean up existing picture
        if (module_exists('imagecache')) {
          imagecache_image_flush($user->picture);
        }
        file_delete($user->picture);
        
        //Assign new picture
        $edit['picture'] = file_directory_path() . '/' . $dest;
        $user->picture = file_directory_path() . '/' . $dest;
      }
    }
  }
}
1	<?php
2	// $Id: unique_avatar.module,v 1.1 2008/01/29 18:08:51 jscheel Exp $
3
4	/**
5	* @file unique_avatar.module
6	*
7	* Full module implementation, creates unique user picture filenames
8	*/
9
10	/**
11	* Implementation of hook_user()
12	*/
13	function unique_avatar_user($type, &$edit, &$user, $category = NULL) {
14	if ($type == 'submit' && $category == 'account') {
15
16	//Is the user picture being modified?
17	$file = file_check_upload('picture_upload');
18	if ($file) {
19	$info = image_get_info($file->filepath);
20
21	//Rename picture with unique id
22	$dest = variable_get('user_picture_path', 'pictures') .'/picture-'. $user->uid . '-' . md5(time()) . '.' . $info['extension'];
23	if (file_move($file->filepath, $dest)) {
24
25	//Clean up existing picture
26	if (module_exists('imagecache')) {
27	imagecache_image_flush($user->picture);
28	}
29	file_delete($user->picture);
30
31	//Assign new picture
32	$edit['picture'] = file_directory_path() . '/' . $dest;
33	$user->picture = file_directory_path() . '/' . $dest;
34	}
35	}
36	}
37	}