node_preview

• Drupal 4.6
• Drupal 4.7
• Drupal 5
• Drupal 6
• Drupal 7

Versions

4.6 – 7

node_preview($node)

Generate a node preview.

Code

modules/node/node.pages.inc, line 341

<?php
function node_preview($node) {
  if (node_access('create', $node) || node_access('update', $node)) {
    _field_invoke_multiple('load', 'node', array($node->nid => $node));
    // Load the user's name when needed.
    if (isset($node->name)) {
      // The use of isset() is mandatory in the context of user IDs, because
      // user ID 0 denotes the anonymous user.
      if ($user = user_load_by_name($node->name)) {
        $node->uid = $user->uid;
        $node->picture = $user->picture;
      }
      else {
        $node->uid = 0; // anonymous user
      }
    }
    elseif ($node->uid) {
      $user = user_load($node->uid);
      $node->name = $user->name;
      $node->picture = $user->picture;
    }

    $node->changed = REQUEST_TIME;
    $nodes = array($node->nid => $node);
    field_attach_prepare_view('node', $nodes, 'full');

    // Display a preview of the node.
    // Previewing alters $node so it needs to be cloned.
    if (!form_get_errors()) {
      $cloned_node = clone $node;
      $cloned_node->in_preview = TRUE;
      $output = theme('node_preview', array('node' => $cloned_node));
    }
    drupal_set_title(t('Preview'), PASS_THROUGH);

    return $output;
  }
}
?>

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