Laravel Mongo User Model

User.php

<?php

namespace App;

use Illuminate\Auth\Authenticatable;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Jenssegers\Mongodb\Eloquent\Model as Model;

/**
 * User
 * The User Model
 * @mixin \Eloquent
 *
 * @property integer $id
 * @property \Carbon\Carbon $created_at
 * @property \Carbon\Carbon $updated_at
 *
 * @property string name
 * @property string email
 * @property string mobile
 * @property string password
 *
 */
class User extends Model implements
    AuthenticatableContract,
    AuthorizableContract,
    CanResetPasswordContract
{
    use Authenticatable, Authorizable, CanResetPassword;
    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = ['name','email','password'];

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    public function getAvatarAttribute($attr)
    {
        if ($attr)
            return $attr;
        else
            return '//www.gravatar.com/avatar/' . md5($this->email).'?d=retro';
    }


    public function getNickAttribute($attr)
    {
        if ($attr)
            return $attr;
        else {
            $e = explode(' ', $this->name);
            if (count($e) > 0)
                return str_replace('_',' ',$e[0]);
            else
                return null;
        }
    }

}