function bid($amount)
{
global $CFG;
date_default_timezone_set($CFG->default_timezone);
if (!($this->id > 0)) {
return false;
}
if ($this->is_expired) {
return false;
}
if (!is_numeric($amount)) {
$this->errors[] = $CFG->auction_invalid_bid_error;
return false;
}
if (User::isLoggedIn()) {
if (DB::tableExists($this->table . '_bids')) {
$user_id = User::$info['id'];
$this->minimum_increase = !($this->high_bid > 0) ? $this->initial_bid : $this->minimum_increase;
if ($amount >= $this->item_info['high_bid'] + $this->minimum_increase || $this->high_bid_user_id == User::$info['id'] && $amount > $this->item_info['high_bid']) {
if ($this->proxy_bids) {
$proxy = Auction::getHighestProxy();
if ($this->high_bid_user_id != User::$info['id']) {
if ($amount <= $proxy['amount']) {
$proxy_increase = $amount + $this->minimum_increase <= $proxy['amount'] ? $amount + $this->minimum_increase : $proxy['amount'];
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $user_id, 'amount' => $amount, 'date' => $this->now));
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $this->high_bid_user_id, 'amount' => $proxy_increase, 'is_proxy' => 'Y', 'date' => $this->now));
DB::update($this->table, array('high_bid' => $proxy_increase), $this->id);
//Auction::realizeBids($proxy_increase);
$this->high_bid = $proxy_increase;
$outbid = true;
} elseif ($amount > $proxy['amount'] && $amount < $proxy['amount'] + $this->minimum_increase && $proxy['user_id'] != $user_id) {
$this->errors[] = str_ireplace('[field]', $this->minimum_increase, $CFG->auction_min_increase_error);
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $user_id, 'amount' => $amount, 'date' => $this->now));
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $this->high_bid_user_id, 'amount' => $proxy['amount'], 'is_proxy' => 'Y', 'date' => $this->now));
DB::update($this->table, array('high_bid' => $proxy['amount']), $this->id);
//Auction::realizeBids($proxy['amount']);
$this->high_bid = $proxy['amount'];
$outbid = true;
} else {
if ($proxy['amount'] > $this->high_bid) {
if ($proxy['amount'] > $this->high_bid + $this->minimum_increase) {
$this->high_bid = $proxy['amount'];
}
}
if ($amount > $proxy['amount'] + $this->minimum_increase) {
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $user_id, 'amount' => $amount, 'is_proxy' => 'N', 'is_realized' => 'N', 'date' => $this->now));
$this->high_bid = $proxy['amount'];
}
}
} else {
if ($amount < $proxy['amount']) {
$this->errors[] = str_ireplace('[field]', $amount, $CFG->auction_outbid_self_proxy_error);
$outbid = true;
} else {
$this->messages[] = str_ireplace('[field]', $amount, $CFG->auction_new_proxy_message);
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $user_id, 'amount' => $amount, 'is_proxy' => 'N', 'is_realized' => 'N', 'date' => $this->now));
$bypass = true;
}
}
}
if ($this->anti_sniping && $this->anti_sniping_increase) {
if ($this->time_remaining < $this->anti_sniping) {
if (!($this->proxy_bids && $this->high_bid_user_id == User::$info['id'])) {
Auction::addTime($this->anti_sniping_increase);
}
}
}
//DB::insert($this->table.'_bids',array('item_id'=>$15this->id,'item_table'=>$this->table,'user_id'=>$user_id,'amount'=>$amount));
if (!$outbid) {
$new_bid = $this->proxy_bids ? $this->high_bid + $this->minimum_increase : $amount;
$new_bid = $this->proxy_bids && $this->high_bid_user_id == $user_id ? $this->high_bid : $new_bid;
//$new_bid = (!($this->high_bid > 0)) ? $amount : $new_bid;
$this->high_bid = $new_bid;
$this->high_bid_user_id = $user_id;
$is_proxy = $this->proxy_bids && $amount > $this->high_bid + $this->minimum_increase ? 'Y' : 'N';
Auction::realizeBids($new_bid);
if (!$bypass) {
DB::insert($this->table . '_bids', array('item_id' => $this->id, 'item_table' => $this->table, 'user_id' => $user_id, 'amount' => $new_bid, 'is_proxy' => $is_proxy, 'date' => $this->now));
}
DB::update($this->table, array('high_bid' => $new_bid, 'high_bid_user_id' => $user_id), $this->id);
$this->messages[] = $CFG->auction_high_bid_message;
return true;
} else {
if (!is_array($this->errors)) {
$this->errors[] = $CFG->auction_outbid_error;
}
return false;
}
} elseif ($amount >= $this->item_info['high_bid'] && $amount < $this->item_info['high_bid'] + $this->minimum_increase) {
$this->errors[] = str_ireplace('[field]', $this->minimum_increase, $CFG->auction_min_increase_error);
return false;
} elseif ($amount < $this->item_info['high_bid'] && $this->item_info['high_bid_user_id'] != $user_id) {
$this->errors[] = str_ireplace('[field]', $this->high_bid, $CFG->auction_bid_too_low_error);
return false;
} elseif ($amount < $this->item_info['high_bid'] && $this->item_info['high_bid_user_id'] == $user_id) {
$this->errors[] = $CFG->auction_outbid_self_error;
return false;
}
} else {
$this->errors[] = $CFG->auction_table_error;
}
} else {
$this->errors[] = $CFG->auction_login_error;
}
}