hook_comment

Respond to comment actions.

This hook allows modules to extend the comments system by responding when certain actions take place.

Parameters

$a1: Argument; meaning is dependent on the action being performed.

• For "validate", "update", and "insert": an array of form values submitted by the user.
• For all other operations, the comment the action is being performed on.

$op: The action being performed. Possible values:

• "insert": The comment is being inserted.
• "update": The comment is being updated.
• "view": The comment is being viewed. This hook can be used to add additional data to the comment before theming.
• "validate": The user has just finished editing the comment and is trying to preview or submit it. This hook can be used to check the comment. Errors should be set with form_set_error().
• "publish": The comment is being published by the moderator.
• "unpublish": The comment is being unpublished by the moderator.
• "delete": The comment is being deleted by the moderator.

Related topics

Hooks

Allow modules to interact with the Drupal core.

7 functions implement hook_comment()

5 invocations of hook_comment()

File

developer/hooks/core.php, line 270

These are the hooks that are invoked by the Drupal core.

Code

function hook_comment(&$a1, $op) {
  if ($op == 'insert' || $op == 'update') {
    $nid = $a1['nid'];
  }

  cache_clear_all_like(drupal_url(array('id' => $nid)));
}