laravel update

php artisan make:model Flight

DB::table('users')->where('id', $id)->delete();

namespace App;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    protected $table = 'posts';

    protected $fillable = ['title', 'slug', 'content'];

    protected static function boot()
    {
        parent::boot();
        static::saving(function ($model) {
            $model->slug = str_slug($model->title);
        });
    }
}

$data = DB::table('cart')
                ->where('crt_id', $id)
               ->update(['crt_status' =>'0']);

// return first row by id
$user = App\User::where('id',$id)->first();
// or return directly a field
$userId = App\User::where(...)->pluck('id');

<!-mass update-->
App\Models\Flight::where('active', 1)
          ->where('destination', 'San Diego')
          ->update(['delayed' => 1]);

// Retrieve flight by name, or create it if it doesn't exist...
$flight = App\Flight::firstOrCreate(['name' => 'Flight 10']);

// Retrieve flight by name, or create it with the name, delayed, and arrival_time attributes...
$flight = App\Flight::firstOrCreate(
    ['name' => 'Flight 10'],
    ['delayed' => 1, 'arrival_time' => '11:30']
);

// Retrieve by name, or instantiate...
$flight = App\Flight::firstOrNew(['name' => 'Flight 10']);

// Retrieve by name, or instantiate with the name, delayed, and arrival_time attributes...
$flight = App\Flight::firstOrNew(
    ['name' => 'Flight 10'],
    ['delayed' => 1, 'arrival_time' => '11:30']
);

Schema::table('flights', function (Blueprint $table) {
    $table->softDeletes();
});

$flight = App\Models\Flight::find(1);

$flight->name = 'New Flight Name';

$flight->save();