Trade status not changing

[Dinocanid]

For some reason, changing the trade status of any pet above level 1 or 0 doesn't seem to work. I haven't touched any code related to trades, but here's mine anyway:

public function trade(){
		$mysidia = Registry::get("mysidia");		
		if($mysidia->input->get("confirm") == "confirm"){
			switch($this->adopt->getTradeStatus()){
		        case "fortrade":
			        $this->adopt->setTradeStatus("notfortrade", "update");
			        $message = $mysidia->lang->trade_disallow;
			        break;
			    case "notfortrade":
			        $this->adopt->setTradeStatus("fortrade", "update");
			        $message = $mysidia->lang->trade_allow;
	                break;
			    default:
			        throw new InvalidActionException("global_action");
		    }
		}
		else{
		    $message = "Are you sure you wish to change the trade status of this adoptable?
					    <center><b><a href='{$this->adopt->getAdoptID()}/confirm'>Yes I'd like to change its trade status</a></b><br /><br />
					    <b><a href='../../myadopts'>Nope I change my mind! Go back to the previous page.</a></b></center><br />";
		}
        $this->setField("aid", new Integer($this->adopt->getAdoptID()));
		$this->setField("image", $this->image);				
        $this->setField("message", new String($message));				
	}

public function trade(){
		$mysidia = Registry::get("mysidia");
		$aid = $this->getField("aid")->getValue();		
		$image = $this->getField("image");	
        $message = $this->getField("message")->getValue();		
		$document = $this->document;
        $document->setTitle($this->lang->trade);
		$document->add($image);
		$document->addLangvar($message);
	}