Laravel events not firing? - laravel

I can't seem to get any of my eloquent.saved event handlers to run.
I tried this:
<?php
namespace App\Providers;
use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
class EventServiceProvider extends ServiceProvider
{
protected $listen = [
'eloquent.saved: \App\Models\Company' => [
'\App\Models\Company#hasSaved',
],
];
}
And then added this method to \App\Models\Company:
public function hasSaved() {
die("SAVED!!!");
}
But it doesn't run when I save a company.
I tried creating an observer:
<?php
namespace App\Providers;
use App\Models\Company;
use App\Observers\CompanyObserver;
use DB;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
{
public function register()
{
Company::observe(CompanyObserver::class);
}
}
But the events never fire:
<?php namespace App\Observers;
class CompanyObserver {
public function saved() {
die('saved');
}
public function saving() {
die('saving');
}
}
I tried using a listener class in EventServiceProvider instead:
protected $listen = [
'eloquent.saved: \App\Models\Company' => [
\App\Listeners\CompanySavedListener::class,
],
];
But that also never runs.
Lastly, I tried adding this to EventServiceProvider
public function boot(DispatcherContract $events)
{
parent::boot($events);
$events->listen('eloquent.*', function() {
dump(func_get_args());
});
}
And that does fire a bunch of random events, but it's just feeding me model instances -- I have no idea what events are actually firing.
So what's going on? I just want to know when my Company has saved.

Let's go for Observer way. The problem is that you used:
Company::observe(CompanyObserver::class);
in register method of AppServiceProvider and you should use it in boot method. When you move this line to boot method (of same class) it will work without a problem and when you save Company, code from saved method of CompanyObserver should be launched.

Related

Laravel 5.8 add data to a layout variable via controller constructor

I am trying to add data to a layout variable via a controller constructor. The reason I want to do this is because I always need to add categories to the topmenu when this controller is called.
No success so far. I add data to a layout via a view composer like this.
namespace App\Http\ViewComposers;
use Illuminate\View\View;
use App\Menu;
class MenuComposer
{
public function compose(View $view)
{
if (in_array($view->getName(), ['layouts.master', 'layouts.master-post', 'layouts.error']))
{
$menu = Menu::menu('topmenu');
view()->with('topmenu', $menu);
// view()->share('topmenu', $menu); not working either
}
}
}
I want to extend the data in a Controller constructor.
namespace App\Http\Controllers\Post;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\View\View;
class PostController extends Controller {
public function __construct(View $view)
{
$view->offsetGet('topmenu');
// $view->gatherData() not working either
}
Whatever I try, Laravel throws an exception:
Target [Illuminate\Contracts\View\Engine] is not instantiable while building [App\Http\Controllers\Post\PostController, Illuminate\View\View].
What I did in the serviceprovider boot function:
view()->share('topmenu', [
'items' => $newItemsToAdd
]);
In the viewComposer I did:
$extraItems = view()->shared('topmenu');
if (!empty($extraItems)) {
$items = aray_merge($items, $extraItems);
}
}

Laravel: Class not found if it is called from a Trait

After creating several Apps with Laravel and using softDelete properties I realized that methods like destroy(), restore() and kill() are exactly the same among several controllers. Therefore I am trying to put themn in a trait and use it from diferent Controllers.
My code is as follows:
ProfilesController.php
<?php
namespace App\Http\Controllers;
use App\Profile;
class ProfilesController extends Controller
{
public function destroy(Profile $profile)
{
Profile::del($profile, 'profiles');
return redirect()->route('profiles.index');
}
public function trashed()
{
Profile::trash('Profile');
}
}
Profile.php (model)
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
class Profile extends Model
{
protected $fillable = ['user_id', 'role_id', 'title', 'subtitle', 'slug', 'birthday', 'about'];
use SoftDeletes, Helpers, commonMethods;
public function getRouteKeyName()
{
return 'slug';
}
// ... more code here
}
trait file: commonMethods.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Auth;
use App\Profile;
use Session;
trait commonMethods
{
public static function del($element, $page_name)
{
$element->delete();
Session::flash('success', $element . ' successfully deleted!');
}
public static function trash($model)
{
$total = $model::onlyTrashed()->get();
$total_tr = count($total);
$all_tr = $model::all();
return view('partials.templates.trashed', compact('total', 'total_tr', 'all_tr'));
}
// ...more code here
}
The problem:
I try to visit the view "Trashed" that will list all elements "softdeleted" but not "killed", the method.
I pass the $model variable with the method trash($model)
I get the following error:
Class App/Profile does not found. Try to call App/Profile
I have debugged and the $model variable contains exactly what I need, the string 'Profile' which is what I need to build the Query:
$total = Profile::onlyTrashed()->get();
This query works while in the ProfilesController, but does not work while in a trait, since the model class is not found.
Any idea how could I make it work?
I am using Laravel 6.
If you need to use a class as a string you will want to use its full name. 'App\Profile' instead of 'Profile'.
$model = 'Profile';
new $model; // will use `\Profile`
$model = 'App\Profile';
new $model; // will use '\App\Profile';
In your controller( ProfilesController ) write :
use App\Profile;
In your model write :
use App\commonMethods;

Laravel and Local Tunnel integration

My idea was to use Local Tunnel's subdomain feature to expose callback URI in a more convenient way. However, I believe that I could've achieved the same results in a simper way.
This is the solution with Laravel Valet:
In package.json I've added a script called shared
"scripts": {
...
"share": "lt --port 80 --subdomain blog --local-host blog.test"
}
In AppServiceProvider.php I've extended the UrlGenerator to avoid redirecting back to http://blog.test
<?php
namespace App\Providers;
use App\Services\LocalTunnelUrlGenerator;
use Blade;
use Illuminate\Http\Resources\Json\Resource;
use Illuminate\Routing\Router;
use Illuminate\Routing\UrlGenerator;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
{
public function boot()
{
(...)
}
public function register()
{
$this->enableLocalTunnel();
}
private function enableLocalTunnel()
{
if (!app()->environment('local') || !config('app.use_local_tunnel')) {
return;
}
$this->app->extend('url', function (UrlGenerator $defaultGenerator) {
/** #var Router $router */
$router = $this->app['router'];
$routes = $router->getRoutes();
return new LocalTunnelUrlGenerator($routes, $defaultGenerator->getRequest());
});
}
}
This is the the LocalTunnelUrlGenerator.php:
<?php
namespace App\Services;
use Illuminate\Http\Request;
use Illuminate\Routing\RouteCollection;
use Illuminate\Routing\UrlGenerator;
class LocalTunnelUrlGenerator extends UrlGenerator
{
public function __construct(RouteCollection $routes, Request $request)
{
parent::__construct($routes, $request);
}
public function formatRoot($scheme, $root = null)
{
return "https://blog.localtunnel.me";
}
}
Why all that? Because whenever the application call the redirect() method, we are sent back to http://blog.test.
Do I really need to extend the UrlGenerator to make it work?

Laravel Pass Authenticated to Every View

I need to pass a collection to every view; the collection contains the IDs of the items in the user's shopping cart. I've tried Service Providers and a BaseClass but neither worked as (apparently) Auth hasn't been registered at those points and only returns null.
What's the best way get records from an authenticated user and pass it to every view?
Edit: here's the relevant code
User.php
public static function getCart()
{
if (Auth::guest()) {
return [];
}
$collection = new \Illuminate\Database\Eloquent\Collection();
$collection = Auth::user()->cart()->pluck('post_id');
return $collection;
}
CartServiceProvider.php
namespace App\Providers;
use View;
use App\User;
use Illuminate\Support\ServiceProvider;
class CartServiceProvider extends ServiceProvider
{
public function boot()
{
View::share('cart', User::getCart());
}
public function register()
{
//
}
}
In any view...
<?php dd($cart); ?>
returns [] because Auth hasn't been registered yet, so the empty array is returned.
Found the answer on Laracasts and it seems to work quite well.
https://laracasts.com/discuss/channels/general-discussion/l5-service-provider-for-sharing-view-variables
From the OP #imJohnBon: "I managed to solve this issue by creating 2 files. First a ComposerServiceProvider which uses a wildcard to be applied to every view and not just particular views:"
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
use Illuminate\Contracts\View\Factory as ViewFactory;
class ComposerServiceProvider extends ServiceProvider {
public function boot(ViewFactory $view)
{
$view->composer('*', 'App\Http\ViewComposers\GlobalComposer');
}
public function register()
{
//
}
}
"And then the corresponding GlobalComposer where I share variables that should be available in all views:"
namespace App\Http\ViewComposers;
use Illuminate\Contracts\View\View;
use Illuminate\Support\Facades\Auth;
class GlobalComposer {
public function compose(View $view)
{
$view->with('currentUser', Auth::user());
}
}

laravel 5.1 - trait boot not being called for model::update() function

I have created trait as follows on this page app/Traits/ModelEventThrower.php
namespace App\Traits;
use Input;
use Event;
use App\Events\ActivityLog;
use Illuminate\Database\Eloquent\Model;
//use Illuminate\Support\Facades\Event;
/**
* Class ModelEventThrower
* #package App\Traits
*
* Automatically throw Add, Update, Delete events of Model.
*/
trait ModelEventThrower {
/**
* Automatically boot with Model, and register Events handler.
*/
protected static function bootModelEventThrower()
{
foreach (static::getModelEvents() as $eventName) {
static::$eventName(function (Model $model) use ($eventName) {
try {
$reflect = new \ReflectionClass($model);
echo "here";exit;
} catch (\Exception $e) {
return true;
}
});
}
}
/**
* Set the default events to be recorded if the $recordEvents
* property does not exist on the model.
*
* #return array
*/
protected static function getModelEvents()
{
if (isset(static::$recordEvents)) {
return static::$recordEvents;
}
return [
'created',
'updated',
'deleted',
];
}
}
My City Model is something like this
namespace App;
use App\Traits\ModelEventThrower;
use App\Events\ActivityLog;
use Illuminate\Database\Eloquent\Model;
use Event;
class City extends Model
{
use ModelEventThrower;
//protected static $recordEvents = ['updated'];
...
}
My CitiesController is
namespace App\Http\Controllers\Admin;
use App\City;
use App\Country;
use Input;
use Validator;
use Illuminate\Http\Request;
use App\Http\Requests;
use App\Http\Controllers\Controller;
class CitiesController extends Controller
{
......
public function update(City $city,Request $request)
{
......
$city->where('id','=',$input['id'])->update($input);
Somehow, I dont see its calling the function written in trait file. When I tried to create $city->create($input); it echos "here" and stops execusion, but not doing same for update function , however I could successfully update the records.
Any suggestion/help will be highly appreciated.
I had a similar issue with Laravel. By adding a constructor in the model to call the boot() function of the parent Model, like so:
public function __construct()
{
parent::boot();
}
you can make sure that all the traits are booted. This solved it for me.

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