I know, that I can fetch Model data based on their relationship existence using with() or doesntHave() in Laravel (9), but I never ever want to fetch Model data without a relationship, thus it is annoying to always write the with() function in all CRUD functions.

Is there a way to pre-filter models without a relationship directly in the Model class?

Adding protected $with = ['foo']; adds the relationships to every record, but is still including the ones without a relationship.

As an optional bonus to that: Maybe a bypass is nice to have, so that in general all results will have relationship but maybe for one specific path GET /all_data the pre-selection would be bypassed.

CodePudding user response：

You can enable eager loading by default if you add the relationship to the $with property of the model as described here: https://laravel.com/docs/9.x/eloquent-relationships#eager-loading-by-default

The documentation reads:

Sometimes you might want to always load some relationships when retrieving a model. To accomplish this, you may define a $with property on the model:

=====Edit1
Another option is using Global Scopes https://laravel.com/docs/9.x/eloquent#global-scopes. You can go from here, you can add some more logic to exclude models without the relationship. =====Edit2
The extra logic will be adding this from the documentation: https://laravel.com/docs/9.x/eloquent-relationships#querying-relationship-existence

protected static function boot(){
        parent::boot();
        static::addGlobalScope('relation', function($builder){
            $builder->has('relation')->with('relation');
        });
}