两个模型的通用model_id-Laravel 5-雄辩

Question

I have a question that I'm looking for its answer for a while. Well, in my Laravel Project, I have a Model Disease which has a belongstoMany relationship with Recipe and User Models. I'm looking to fetch from database all recipe rows that have same disease_id as the current logged user . Is there any way to do so with Eloquent? Thank you !

Answer 1

Would something like this work:

$user = Auth::user();
return Recipe::where('disease_id', $user->id)->get();

Answer 2

Make sure your User model has a diseases relation defined:

public function diseases()
{
    return $this->hasMany(Disease::class);
}

You can get the current user and disease_id like this (edited to use the diseases relation on the Users model):

$user = Auth::user();
$disease_ids = $user->diseases()->pluck('id');

Then you can find the recipes with the same disease_id like this:

return Recipe::whereIn('disease_id', $disease_ids)->get();