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Definition

user_admin_role_submit($form_id, $form_values)
user/user.module, line 1978

Code

<?php
function user_admin_role_submit($form_id, $form_values) {
  if ($form_values['op'] == t('Save role')) {
    db_query("UPDATE {role} SET name = '%s' WHERE rid = %d", $form_values['name'], $form_values['rid']);
    drupal_set_message(t('The role has been renamed.'));
  }
  else if ($form_values['op'] == t('Delete role')) {
    db_query('DELETE FROM {role} WHERE rid = %d', $form_values['rid']);
    db_query('DELETE FROM {permission} WHERE rid = %d', $form_values['rid']);
    // Update the users who have this role set:
    db_query('DELETE FROM {users_roles} WHERE rid = %d', $form_values['rid']);

    drupal_set_message(t('The role has been deleted.'));
  }
  else if ($form_values['op'] == t('Add role')) {
    db_query("INSERT INTO {role} (name) VALUES ('%s')", $form_values['name']);
    drupal_set_message(t('The role has been added.'));
  }
  return 'admin/user/roles';
}
?>