Mutator for unique user attribute

All we need is an easy explanation of the problem, so here it is.

In my code the line User::where('socialite_id', $socialite_id)->exists(); is used so many times, that i want to just write a mutator or sth around it to make this line shorter.

So i need to make mutator, that checks if there’s a user with the same socialite_id that a new user is about to have.

I’ve come with

    public function hasUniqueSocialiteIdAttribute($value){
        return !$this->where('socialite_id', $value)->exists();
    }

Mabye it is better to catch the duplicate exception and abort on catch, but.. naah.

But this thing is not working. Any suggestions?

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

You can use a scope for reusability purposes:

public function scopeSocialiteId($query,$id) {      
    return $query->where('socialite_id', $id);
}

and then

User::socialiteId($socialite_id)->exists();

For additional info see https://laravel.com/docs/8.x/eloquent#local-scopes

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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