Drupal：按权限限制文件上传

Question

On my Drupal 7 site, I am looking for a way to only allow users with a specific role to upload PDF files. All users, however, will be able to upload other file types (eg jpg, mp4).

Is there a module or some code available that can accomplish that tool for me?

Answer 1

You dont need a module for that. You can write a hook_form_alter and do the following

 1. add help-text based on role.
if role = 1
#form['field_name']['#description'] = t('Help test 1')
elseif role = 2
#form['field_name']['#description'] = t('Help test 2')

2. Add custom validation to check file extension based on roles.

   $form['#validate'][] = 'validate_function'; function validate_function if role = 1 Validate file type 1 elseif role = 2 Validate file type 2

cheers!

Answer 2

You can use hook_form_alter to achieve this.

load your user object

global $user;
$valid_role = 'yourGivenRole';

if(in_array($valid, $user->roles)){
     $form['field_name']['und'][0]['#upload_validators']['file_validate_extensions'][0]  = 'pdf';
}