node_validate

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

Versions

4.6

node_validate($node)

4.7 – 7

node_validate($node, $form = array())

Perform validation checks on the given node.

Code

modules/node.module, line 1581

<?php
function node_validate($node, $form = array()) {
  // Convert the node to an object, if necessary.
  $node = (object)$node;

  // Make sure the body has the minimum number of words.
  // todo use a better word counting algorithm that will work in other languages
  if (isset($node->body) && count(explode(' ', $node->body)) < variable_get('minimum_'. $node->type .'_size', 0)) {
    form_set_error('body', t('The body of your %type is too short. You need at least %words words.', array('%words' => variable_get('minimum_'. $node->type .'_size', 0), '%type' => node_get_name($node))));
  }

  if (isset($node->nid) && (node_last_changed($node->nid) > $node->changed)) {
    form_set_error('changed', t('This content has been modified by another user, changes cannot be saved.'));
  }

  if (user_access('administer nodes')) {
    // Validate the "authored by" field.
    if (!empty($node->name) && !($account = user_load(array('name' => $node->name)))) {
      // The use of empty() is mandatory in the context of usernames
      // as the empty string denotes the anonymous user.  In case we
      // are dealing with an anonymous user we set the user ID to 0.
      form_set_error('name', t('The username %name does not exist.', array ('%name' => theme('placeholder', $node->name))));
    }

    // Validate the "authored on" field. As of PHP 5.1.0, strtotime returns FALSE instead of -1 upon failure.
    if (!empty($node->date) && strtotime($node->date) <= 0) {
      form_set_error('date', t('You have to specify a valid date.'));
    }
  }

  // Do node-type-specific validation checks.
  node_invoke($node, 'validate', $form);
  node_invoke_nodeapi($node, 'validate', $form);
}
?>

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