Laravel nova resource extending/overriding the create method

Question

I am developing a web admin panel using Laravel Nova.

I am having an issue since Nova is quite a new technology.

What I would like to do now is I would like to add a hidden field or extend or override the create method.

This is my scenario. Let's save I have a vacancy nova resource with the following field.

public function fields(Request $request)
{
    return [
        ID::make()->sortable(),
        Text::make('Title')->sortable(),
        Text::make('Salary')->sortable()
        // I will have another field, called created_by
    ];
}

Very simple. What I like to do is I want to add a new field called created_by into the database. Then that field will be auto filled with the current logged user id ($request->user()->id).

How can I override or extend the create function of Nova? How can I achieve it?

I can use resource event, but how can I retrieve the logged in user in the event?

Answer 1

In my opinion you should go for Observers. Observers will make you code more readable and trackable.

Here is how you can achieve the same with Laravel Observers.

AppServiceProvider.php

public function boot()
{
    Nova::serving(function () {
        Post::observe(PostObserver::class);
    });
}

PostObserver.php

public function creating(Post $post)
{
    $post->created_by = Auth::user()->id;   
}

OR

You can simply hack a Nova field using withMeta.

Text::make('created_by')->withMeta([
    'type' => 'hidden',
    'value' => Auth::user()->id
])