function drush_node_revision_delete_nrd_delete_prior_revisions_validate in Node Revision Delete 7.3

Same name and namespace in other branches

1. 8 node_revision_delete.drush.inc \drush_node_revision_delete_nrd_delete_prior_revisions_validate()

Implements drush_hook_COMMAND_validate().

File

./node_revision_delete.drush.inc, line 437

Code

function drush_node_revision_delete_nrd_delete_prior_revisions_validate() {
  $args = func_get_args();

  // Check for only 2 arguments.
  if (count($args) != 2) {
    return drush_set_error('NODE_REVISION_DELETE_INVALID_ARGUMENT', dt('This command use two arguments.'));
  }

  // Check if the first argument is a valid node id.
  $node = node_load($args[0]);
  if (!$node) {
    return drush_set_error('NODE_REVISION_DELETE_INVALID_ARGUMENT', dt('The first argument @nid is not a valid node id.', array(
      '@nid' => $args[0],
    )));
  }

  // Check if the second argument is a valid revision id.
  $revisions = node_revision_list($node);
  if (!isset($revisions[$args[1]])) {
    return drush_set_error('NODE_REVISION_DELETE_INVALID_ARGUMENT', dt('The second argument @vid is not a valid revision id or doesn\'t belong to the node id @nid.', array(
      '@vid' => $args[1],
      '@nid' => $args[0],
    )));
  }

  // Check if exists prior revisions.
  if (!count(_node_revision_delete_get_previous_revisions($args[0], $args[1]))) {
    drush_log(dt('There is no revision prior to revision @vid.', array(
      '@vid' => $args[1],
    )), 'warning');
    return FALSE;
  }
}