function comment_node_prepare in Drupal 7
Implements hook_node_prepare().
File
- modules/comment/ comment.module, line 1296 
- Enables users to comment on published content.
Code
function comment_node_prepare($node) {
  if (!isset($node->comment)) {
    $node->comment = variable_get("comment_{$node->type}", COMMENT_NODE_OPEN);
  }
}