areaweb-social-networtk/app/User.php

<?php

namespace App;

use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;

class User extends Authenticatable
{
    use Notifiable;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name', 'email', 'password', 'surname', 'username', 'day', 'month',
        'year', 'skill', 'about', 'balance', 'country_id', 'city_id',
        'group', 'ban_info', 'avatar_url', 'status_text', 'dob', 'verify'
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    /**
     * The attributes that should be cast to native types.
     *
     * @var array
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
    ];

    private $online_minutes = 15;

    public function city()
    {
        return $this->hasOne('App\City', 'id', 'city_id');
    }

    public function country()
    {
        return $this->hasOne('App\Country', 'id', 'country_id');
    }

    public function articles()
    {
        return $this->hasMany('App\Article', 'user_id', 'id')->latest();
    }

    public function online()
    {
        $control_time = $this->online_minutes * 60;
        return ((time() - $this->online) > $control_time) ? false : true;
    }
}