|--------------------------------------------------------------------------
| Application Routes
|--------------------------------------------------------------------------
|
| Here is where you can register all of the routes for an application.
| It's a breeze. Simply tell Laravel the URIs it should respond to
| and give it the controller to call when that URI is requested.
|
*/
Route::get('/', function () {
    /*
     # Polymorphic Relationship Example
     # Photo, Staff, Order Models
     #
    */
    $photo = App\Photo::find(3);
    /* You Can Check ID [ 1,2,3,4 ] */
    $imageable = $photo->imageable;
    return $imageable;
});
Route::get('/many-to-many-polymorphic', function () {
    $posts = App\Post::find(1);
    //
    return $posts->tags;
    $vieos = App\Video::find(1);
    //    return $vieos->tags;
    $tags = App\Tag::find(2);
    //    return $tags->posts;
    foreach ($tags->posts as $post) {
        echo $post->pivot->tag_id;
    }