DI Sample

CompanyServiceProvider.php

<?php namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use App\Company;
use App\Repositories\Company\EloquentCompany;

class CompanyServiceProvider extends ServiceProvider {


	/**
	 * Register the application services.
	 *
	 * @return void
	 */
	public function register()
	{
		$this->app->bind('App\Repositories\Company\CompanyInterface', function($app)
		{
			return new EloquentCompany(new Company,
				$app->make('App\Repositories\Network\NetworkInterface'));
		});

	}

}

EloquentCompany.php

<?php namespace App\Repositories\Company;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;
use Rhumsaa\Uuid\Uuid;
use App\Repositories\DbRepository;
use App\Repositories\Company\CompanyInterface;

class EloquentCompany extends DbRepository implements CompanyInterface {

    /**
     * @var Model
     */
    private $company;

    private $network;

    public function __construct(
        Model $company,
        NetworkInterface $network)
    {
        $this->company = $company;
        $this->network = $network;
    }

    /**
     * @param $request
     * @param $user
     * @return static
     */
    public function save($request, $user)
    {
        // lookup the users network
        $network = $this->network->getByUserId($user->id);

        $request->merge([
            'status_id' => '1', // The default status (Unknown Status) due to primary key constraint
            'uuid' => Uuid::uuid4()->toString(),
        ]);

        $company = $this->company->create($request->all());

        // Need to associate the newly created company with the users network
        $company->networks()->attach($user->id, ['user_tags' => $request->tags]);

        return $company;
    }

}

EloquentNetwork.php

<?php namespace App\Repositories\Network;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;
use Rhumsaa\Uuid\Uuid;
use App\Repositories\DbRepository;
use App\Repositories\Network\NetworkInterface;

class EloquentNetwork extends DbRepository implements NetworkInterface {

    /**
     * @var Model
     */
    protected $network;
    
    protected $company;

    public function __construct(
        Model $network,
        CompanyInterface $company
    )
    {
        $this->network = $network;
        $this->company = $company;
    }

    public function addCompanyByUuid($uuid, $user)
    {
        $company = $this->company->findByUuid($uuid);

        $network = $this->findByUserId($user->id);

        if( $network->companies()->get()->contains($company->id))
        {
            return FALSE;
        }

        $network->companies()->attach($company->id);

        return $company;
    }
}

NetworkServiceProvider

<?php namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use App\Network;
use App\Repositories\Network\EloquentNetwork;

class NetworkServiceProvider extends ServiceProvider {

    public function register()
    {
        $this->app->bind('App\Repositories\Network\NetworkInterface', function ($app)
        {
            return new EloquentNetwork(new Network,
                $app->make('App\Repositories\Company\CompanyInterface'));
        });
    }
}