How to pass parameter to a laravel elequent model's event observer - php

Question

I have a model in laravel and I want to do something after the first time which an object of my model is created. the simplest way is to add a static boot method inside my model's class like the code below:
class modelName extends Model
{
public static function boot()
{
parent::boot();
self::created(function ($model) {
//the model created for the first time and saved
//do something
//code here
});
}
}
so far so good! the problem is: the ONLY parameter that created method accepts is the model object itself(according to the documentation) :
Each of these methods receives the model as their only argument.
https://laravel.com/docs/5.5/eloquent#events
I need more arguments to work with after model creation. how can I do that?
Or is there any other way to do something while it's guaranteed that the model has been created?
laravel version is 5.5.

Answer 1

You're close. What I would probably do would be to dispatch an event right after you actually create the model in your controller. Something like this.
class WhateverController
{
public function create()
{
$model = Whatever::create($request->all());
$anotherModel = Another::findOrFail($request->another_id);
if (!$model) {
// The model was not created.
return response()->json(null, 500);
}
event(new WhateverEvent($model, $anotherModel));
}
}

Answer 2

I solved the issue using static property in eloquent model class:
class modelName extends Model
{
public static $extraArguments;
public function __construct(array $attributes = [],$data = [])
{
parent::__construct($attributes);
self::$extraArguments = $data ;
public static function boot()
{
parent::boot();
self::created(function ($model) {
//the model created for the first time and saved
//do something
//code here
self::$extraArguments; // is available in here
});
}
}
It works! but I don't know if it may cause any other misbehavior in the application.
Using laravel events is also a better and cleaner way to do that in SOME cases.but the problem with event solution is you can't know if the model has been created for sure and it's time to call the event or it's still in creating status ( and not created status).