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|
<?php
// $Id$
/**
* @file
* Hooks provided by the Comment module.
*/
/**
* @addtogroup hooks
* @{
*/
/**
* The comment passed validation and is about to be saved.
*
* Modules may make changes to the comment before it is saved to the database.
*
* @param $comment
* The comment object.
*/
function hook_comment_presave($comment) {
// Remove leading & trailing spaces from the comment subject.
$comment->subject = trim($comment->subject);
}
/**
* The comment is being inserted.
*
* @param $comment
* The comment object.
*/
function hook_comment_insert($comment) {
// Reindex the node when comments are added.
search_touch_node($comment->nid);
}
/**
* The comment is being updated.
*
* @param $comment
* The comment object.
*/
function hook_comment_update($comment) {
// Reindex the node when comments are updated.
search_touch_node($comment->nid);
}
/**
* Comments are being loaded from the database.
*
* @param $comments
* An array of comment objects indexed by cid.
*/
function hook_comment_load($comments) {
$result = db_query('SELECT cid, foo FROM {mytable} WHERE cid IN (:cids)', array(':cids' => array_keys($comments)));
foreach ($result as $record) {
$comments[$record->cid]->foo = $record->foo;
}
}
/**
* The comment is being viewed. This hook can be used to add additional data to the comment before theming.
*
* @param $comment
* Passes in the comment the action is being performed on.
* @param $view_mode
* View mode, e.g. 'full', 'teaser'...
* @param $langcode
* The language code used for rendering.
*
* @see hook_entity_view()
*/
function hook_comment_view($comment, $view_mode, $langcode) {
// how old is the comment
$comment->time_ago = time() - $comment->changed;
}
/**
* The comment was built; the module may modify the structured content.
*
* This hook is called after the content has been assembled in a structured array
* and may be used for doing processing which requires that the complete comment
* content structure has been built.
*
* If the module wishes to act on the rendered HTML of the comment rather than the
* structured content array, it may use this hook to add a #post_render callback.
* Alternatively, it could also implement hook_preprocess_comment(). See
* drupal_render() and theme() documentation respectively for details.
*
* @param $build
* A renderable array representing the comment.
*
* @see comment_view()
* @see hook_entity_view_alter()
*/
function hook_comment_view_alter(&$build) {
// Check for the existence of a field added by another module.
if ($build['#view_mode'] == 'full' && isset($build['an_additional_field'])) {
// Change its weight.
$build['an_additional_field']['#weight'] = -10;
}
// Add a #post_render callback to act on the rendered HTML of the comment.
$build['#post_render'][] = 'my_module_comment_post_render';
}
/**
* The comment is being published by the moderator.
*
* @param $comment
* Passes in the comment the action is being performed on.
* @return
* Nothing.
*/
function hook_comment_publish($comment) {
drupal_set_message(t('Comment: @subject has been published', array('@subject' => $comment->subject)));
}
/**
* The comment is being unpublished by the moderator.
*
* @param $comment
* Passes in the comment the action is being performed on.
* @return
* Nothing.
*/
function hook_comment_unpublish($comment) {
drupal_set_message(t('Comment: @subject has been unpublished', array('@subject' => $comment->subject)));
}
/**
* The comment is being deleted by the moderator.
*
* @param $comment
* Passes in the comment the action is being performed on.
* @return
* Nothing.
*/
function hook_comment_delete($comment) {
drupal_set_message(t('Comment: @subject has been deleted', array('@subject' => $comment->subject)));
}
/**
* @} End of "addtogroup hooks".
*/
|
