/**
* Adds a single up/down vote to the item and recalculates the vote results.
* This method performs no checks to see whether the current user has already voted for the item.
*
* @param integer 0 = down, 1 = up
* @param string IP number
* @return void
*/
public function cast_vote($vote, $ip = NULL)
{
// Vote value must be either 0 or 1
$vote = min(1, max(0, (int) $vote));
$aux_vote = 0;
if ($vote) {
// Add an "up" vote
$this->votes_up += 10;
$sql = 'votes_up = votes_up + 10';
$aux_vote = 10;
} else {
$aux_vote = -10;
// Add a "down" vote
$this->votes_down += 10;
$sql = 'votes_down = votes_down + 10';
}
// Recalculate the vote results, no need to reload the item from database
$this->calculate_votes();
// Update the item record
$sth = ThumbsUp::db()->prepare('UPDATE ' . ThumbsUp::config('database_table_prefix') . 'items SET ' . $sql . ' WHERE id = ?');
$sth->execute(array($this->id));
// The current user has just cast a vote
$this->user_voted = TRUE;
$this->register_vote_in_owloo($this->name, $aux_vote);
// Add the item id to a cookie
if (ThumbsUp::config('cookie_check')) {
ThumbsUp_Cookie::add_id($this->id);
}
// Combine the storage of the IP and user id into one query for optimization
$ip = ThumbsUp::config('ip_check') ? ThumbsUp::get_ip() : NULL;
$user_id = ThumbsUp::config('user_id_check') ? ThumbsUp::get_user_id() : NULL;
if ($ip or $user_id) {
$sth = ThumbsUp::db()->prepare('INSERT INTO ' . ThumbsUp::config('database_table_prefix') . 'votes (item_id, ip, user_id, value, date) VALUES (?, ?, ?, ?, ?)');
$sth->execute(array($this->id, $ip, $user_id, $vote, time()));
}
}
/**
* Deletes the cookie completely.
*
* @return boolean was setcookie() successful or not?
*/
public static function delete()
{
// Delete cookie contents
self::$cookie = '';
unset($_COOKIE[ThumbsUp::config('cookie_name')]);
// If any output has been sent, setcookie() will fail.
// If we're not in debug mode, we'll fail silently.
if (headers_sent() and !ThumbsUp::config('debug')) {
return FALSE;
}
// Setting a cookie with a value of FALSE will try to delete it
return setcookie(ThumbsUp::config('cookie_name'), FALSE, time() - 86400, ThumbsUp::config('cookie_path'), ThumbsUp::config('cookie_domain'));
}
