Laravel的多态性？

Question

for example I have model Message with these columns:

messages
- id
- body
- type
- created_at
- updated_at

And such a controller:

class MessageController extends Controller
{

    /**
     * Display the specified resource.
     *
     * @param  \App\Message  $message
     * @return \Illuminate\Http\Response
     */
    public function show(Message $message)
    {
        switch ($message->type) {
            case 'info':
                $color = 'blue';
                // updated - lots of code here!
                break;
            case 'warning':
                $color = 'yellow';
                // updated - lots of code here!
                break;

            .
            .
            .

            case 'danger':
                $color = 'red';
                // updated - lots of code here!
                break;
            default:
                $color = 'gray';
                // updated - lots of code here!
        }
        return view('messages.show',compact(['message','color']));
    }

}

and as you see my problem is this long switch. I tried searching and I found that Polymorphism could help me to avoid this long switch, but I did not find out how to implement it how much I went and all my searches ended in Polymorphic Relations in Laravel that was not my answer.

would you help me to do something like this:

class MessageController extends Controller
{

    /**
     * Display the specified resource.
     *
     * @param  \App\Message  $message
     * @return \Illuminate\Http\Response
     */
    public function show(Message $message)
    {
        $color = $message->[something?]->color();
        return view('messages.show',compact(['message','color']));
    }

}

---

Update: As I wrote at beginning, It's just an example and switch case block will contain more lines of code.

Answer 1

No need to Polymorphic just make an array like this in your model or config:

    $messageColors = [
        "info"=>"blue",
        .......
    ]

And then write this:

    $color = $messageColors[$message->type];