Laravel模型观察者存储库注入

我试图思考如何为Laravel的模型观察者注入存储库。目前，我有这个设置。

用户宠物服务提供商.php

<?php namespace Bunny'Providers;
use Illuminate'Support'ServiceProvider;
use Bunny'Observers'Pet'UserPetObserver;
class UserPetServiceProvider extends ServiceProvider {
    public function register()
    {
        // User pets
        $this->app->bind('Bunny'Repos'Pet'IUserPetRepo', 'Bunny'Repos'Pet'UserPetRepo');
        // User pet layers
        $this->app->bind('Bunny'Repos'Pet'IUserPetLayerRepo', 'Bunny'Repos'Pet'UserPetLayerRepo');
        // User pet markings
        $this->app->bind('Bunny'Repos'Pet'IUserPetMarkingRepo', 'Bunny'Repos'Pet'UserPetMarkingRepo');
        $this->app->events->subscribe(new UserPetObserver());
    }
}

它可以很好地绑定所有接口和存储库，并且可以与观察者绑定，但是我需要在构造函数中执行此操作的存储库注入。构造函数中没有传递任何内容，因此它将解释它失败的原因。

用户宠物回购.php

<?php namespace Bunny'Repos'Pet;
use Bunny'Repos'BaseRepo;
use Bunny'Models'Pet'UserPet;
use Bunny'Repos'User'IUserRepo;
use Bunny'Repos'Breed'IStageRepo;
use Bunny'Repos'Breed'IBreedLayerRepo;
use Illuminate'Config'Repository as Config;
use Illuminate'Support'Str as String;
use Illuminate'Session'SessionManager as Session;
use Illuminate'Events'Dispatcher;
class UserPetRepo extends BaseRepo implements IUserPetRepo {
    public function __construct(UserPet $pet, IUserRepo $user, IStageRepo $stage, IBreedLayerRepo $layer, Config $config, String $string, Session $session, Dispatcher $events)
    {
        $this->model = $pet;
        $this->user = $user;
        $this->stage = $stage;
        $this->layer = $layer;
        $this->config = $config;
        $this->string = $string;
        $this->session = $session;
        $this->events = $events;
        $this->directory = $this->config->get('pathurl.userpets');
        $this->url       = $this->config->get('pathurl.userpets_url');
    }
    /**
     * Create new user pet
     * @param attributes     Attributes
     */
    public function createWithImage( array $attributes, array $colors, $domMarkings = null, $domMarkingColors = null, $recMarkings = null, $recMarkingColors = null )
    {
        $this->model->name = $attributes['name'];
        $this->model->breed_id = $attributes['breed_id'];
        $this->model->user_id = $this->user->getId();
        $this->model->stage_id = $this->stage->getBaby()->id;
        // Get image
        $image = $this->layer->compile(
            $attributes['breed_id'],
            'baby',
            $colors,
            $domMarkings,
            $domMarkingColors
        );
        // Write image and set
        $file = $this->writeImage( $image );
        if( ! $file )
        {
            return false;
        }
        $this->model->base_image = $file;
        $this->model->image = $file;
        if( ! $this->model->save() )
        {
            return false;
        }
        $this->events->fire('userpet.create', array($this->model));
        return $this->model;
    }
    /**
     * Write image
     * @param image      Imagick Object
     */
    protected function writeImage( $image )
    {
        $fileName = $this->string->random(50) . '.png';
        if( $image->writeImage( $this->directory . $fileName ) )
        {
            return $fileName;
        }
        $this->model->errors()->add('writeImage', 'There was an error writing your image. Please contact an administrator');
        return false;
    }
}

用户宠物观察者.php

use Bunny'Repos'Pet'IUserPetLayerRepo;
use Bunny'Repos'Pet'IUserPetMarkingRepo;
use Bunny'Observers'BaseObserver;
class UserPetObserver extends BaseObserver {
    public function __construct(IUserPetLayerRepo $layers, IUserPetMarkingRepo $markings)
    {
        $this->layers = $layers;
        $this->markings = $markings;
    }
    /**
     * After create
     */
    public function onCreate( $model )
    {
        $this->layers->user_pet_id = $model->id;
        dd(Input::all());
        $this->layers->breed_layer_id = $model->id;
    }
    public function subscribe( $event )
    {
        $event->listen('userpet.create', 'UserPetObserver@onCreate');
    }
}

它将其作为错误抛出：

参数 1 传递给 Bunny''Observers''Pet''UserPetObserver：：__construct（） 必须是实例 的 Bunny''Repos''Pet''IUserPetLayerRepo，没有给出，在 H：''WD 中调用 SmartWare.swstor''HALEY-HP''Source2''bunny-meadows''app''Bunny''Providers''UserPetServiceProvider.php 在第 22 行并定义

这是有道理的，因为我没有在构造函数中传递任何东西。所以我尝试手动传递我的存储库。

$this->app->events->subscribe(new UserPetObserver(new UserPetLayerRepo, new UserPetMarkingRepo));

但随后它会抛出需要注入的用户宠物层存储库的错误......它只是链条不停地链子。难道我只是想多了？

谢谢。

编辑：：：这是我唯一能想到做的事情。不过，这似乎是一种非常丑陋/糟糕的方法：

$this->app->events->subscribe(new UserPetObserver($this->app->make('Bunny'Repos'Pet'UserPetLayerRepo'), $this->app->make('Bunny'Repos'Pet'UserPetMarkingRepo')));

还有其他想法吗？