Programmatically set a Drupal view argument based on the field of the current user.

gistfile1.txt

/**
 * @implements hook_views_pre_view().
 * @param $view
 * @param $display_id
 * @param $args
 *
 * Programmatically set a Drupal view argument based on the field of the current user.
 */

function tng_weekly_view_views_pre_view(&$view, &$display_id, &$args) {
  if($view->name == 'training_overview' && $display_id ='weekly_view') {
    global $user;

    $wrapper = entity_metadata_wrapper('user', $user);
    $args[] = $wrapper->field_delta->value();
  }