/**
* Likes controller for route /like_post/{like}
*
* @param int @post_id The post to be edited.
*/
public function like_post($post_id)
{
// If unknown user or bot, cannot like.
if ($this->user->data['user_id'] == ANONYMOUS || $this->user->data['is_bot']) {
return;
}
// Add language variables for response.
$this->user->add_lang_ext('nuleaf/likes', 'likes');
// Grab forum id for permission.
$sql = 'SELECT forum_id
FROM ' . POSTS_TABLE . '
WHERE post_id = ' . $post_id;
$result = $this->db->sql_query_limit($sql, 1);
$forum_id = $this->db->sql_fetchrow($result)['forum_id'];
$this->db->sql_freeresult($result);
// Does the user have permission to like posts in this forum?
if ($this->auth->acl_get('!f_like', $forum_id)) {
$json_response = new json_response();
$json_response->send(array('error' => $this->user->lang('LIKE_NOT_AUTHORIZED')));
return;
}
if ($this->request->is_ajax()) {
$liked = $this->likes_manager->is_liked($post_id);
if ($liked) {
// If post is already liked, unlike it.
$likes_count = $this->likes_manager->unlike($post_id);
} else {
// Else like the post.
$likes_count = $this->likes_manager->like($post_id);
}
// Since the post has now been liked/unliked, $liked is reversed.
$json_response = new json_response();
$json_response->send(array('likes_count' => $likes_count, 'liked' => !$liked, 'LIKE_POST' => $this->user->lang('LIKE_POST'), 'UNLIKE_POST' => $this->user->lang('UNLIKE_POST'), 'LIKE_BUTTON' => $this->user->lang('LIKE_BUTTON'), 'UNLIKE_BUTTON' => $this->user->lang('UNLIKE_BUTTON')));
}
}
/**
* Event: core.viewtopic_modify_post_row.
*
* Adds varibles needed for the likes extension to be displayed on each post.
*/
public function add_likes_to_post($event)
{
// Add language files to postrow display loop.
$this->user->add_lang_ext('nuleaf/likes', 'likes');
$post_row = $event['post_row'];
// Modify post row data to include variables needed for the likes to be displayed on post.
$post_id = $post_row['POST_ID'];
$post_row['LIKES_COUNT'] = $this->likes_manager->get_likes_count($post_id);
$post_row['LIKED'] = $this->likes_manager->is_liked($post_id);
$post_row['U_LIKES'] = $this->helper->route('nuleaf_likes_controller', array('post_id' => $post_id));
$event['post_row'] = $post_row;
// Include necessary functions and css.
if ($this->config['likes_on']) {
$this->template->assign_vars(array('LIKES_INCLUDEJS' => true, 'LIKES_INCLUDECSS' => true, 'LIKES_ON' => true));
}
}
