public function isPaid()
{
if (array_get($this->data, 'trade_status')) {
if (array_get($this->data, 'trade_status') == 'TRADE_SUCCESS') {
return true;
} elseif (array_get($this->data, 'trade_status') == 'TRADE_FINISHED') {
return true;
} else {
return false;
}
} elseif (array_get($this->data, 'code') == '10000') {
return true;
} else {
return false;
}
}