[Laravel] implicit model binding in controller

2016_07_08_201754_create_region_city_hotel_table.php

<?php

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateRegionCityHotelTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('regions', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->timestamps();
        });
		Schema::create('cities', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->timestamps();
        });
        Schema::create('hotels', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('regions');
        Schema::drop('cities');
        Schema::drop('hotels');
    }
}

README.md

Dont forget to do composer dump-autoload after adding the files.

Done for reddit

City.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class City extends Model
{
    public $fillable = ['name'];
	
	public function getRouteKeyName()
	{
		return 'name';
	}
}

DatabaseSeeder.php

<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        App\Region::create(['name' => 'texas']);
        App\City::create(['name' => 'dallas']);
        App\Hotel::create(['name' => 'paradise']);
    }
}

Hotel.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Hotel extends Model
{
    public $fillable = ['name'];
	
	public function getRouteKeyName()
	{
		return 'name';
	}
}

HotelController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

class HotelController extends Controller
{
    
	public function show(\App\Region $region, \App\City $city, \App\Hotel $hotel) {
		dd($region, $city, $hotel);
	}
	
}

Region.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Region extends Model
{
    public $fillable = ['name'];
	
	public function getRouteKeyName()
	{
		return 'name';
	}
}

routes.php

<?php

/*
|--------------------------------------------------------------------------
| 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('/hotels/{region}/{city}/{hotel}', ['uses' => 'HotelController@show']);