OwlerUser.php

<?php
namespace UserFrosting\Sprinkle\ExtendUser\Model;

use Illuminate\Database\Capsule\Manager as Capsule;
use UserFrosting\Sprinkle\Account\Model\User;
use UserFrosting\Sprinkle\ExtendUser\Model\Owler;

class OwlerUser extends User {

    protected $fillable = [
        "user_name",
        "first_name",
        "last_name",
        "email",
        "locale",
        "theme",
        "group_id",
        "flag_verified",
        "flag_enabled",
        "last_activity_id",
        "password",
        "deleted_at",
        "city",
        "country"
    ];

    /**
     * Required to be able to access the `owler` relationship in Twig without needing to do eager loading.
     * @see http://stackoverflow.com/questions/29514081/cannot-access-eloquent-attributes-on-twig/35908957#35908957
     */
    public function __isset($name)
    {
        if (in_array($name, [
            'owler'
        ])) {
            return isset($this->owler);
        } else {
            return parent::__isset($name);
        }
    }

    /**
     * Custom accessor for Owler property
     */
    public function getCityAttribute($value)
    {
        return (count($this->owler) ? $this->owler->city : '');
    }

    /**
     * Custom accessor for Owler property
     */
    public function getCountryAttribute($value)
    {
        return (count($this->owler) ? $this->owler->country : '');
    }

    /**
     * Get the owler associated with this user.
     */
    public function owler()
    {
        return $this->hasOne('\UserFrosting\Sprinkle\ExtendUser\Model\Owler', 'user_id');
    }

    /**
     * Custom mutator for Owler property
     */
    public function setCityAttribute($value)
    {
        $this->createRelatedOwlerIfNotExists();

        $this->owler->city = $value;
    }

    /**
     * Custom mutator for Owler property
     */
    public function setCountryAttribute($value)
    {
        $this->createRelatedOwlerIfNotExists();

        $this->owler->country = $value;
    }

    /**
     * The "booting" method of the model.
     *
     * @return void
     */
    protected static function boot()
    {
        parent::boot();

        error_log("Hey I'm bootin here");

        /**
        * Create a new instance, and also create a related Owler object.
        */
        static::created(function ($owlerUser) {
            error_log("In created event handler");

            Capsule::transaction( function() use ($owlerUser) {    
                $owlerUser->owler()->create($owlerUser->getAttributes());
            });
        });

        static::saved(function ($owlerUser) {
            error_log("Saving related owler");
            $owlerUser->owler->save();
        });
    }

    protected function createRelatedOwlerIfNotExists()
    {
        if (!count($this->owler)) {
            error_log("No owler found for user " . $this->id);
            $owler = new Owler([
                'user_id' => $this->id
            ]);

            $this->setRelation('owler', $owler);
        }
    }
}