laravel using policy with many to many relationship pivot table

Question

how do you set policy in many to many relationship since it is using pivot table ||laravel version 6|| Example:MainTable[company and user] PivotTable[company_user]

using view policy as example:

 public function view(User $user,Company $company)
{
    return $user->companys()->company_id == $company->id;
}

rules: (only the user that belongs to a company can view ) At the moment above code is not working i cannot find example in google or at the documentation it self since most of example is Post and User which they dont consist of pivot table ..

Answer 1

You could use combination of pluck() and contains() collection methods.

public function view(User $user, Company $company)
{
    return $user->companys->pluck('id')->contains($company->id);
}

Pluck: https://laravel.com/docs/6.x/collections#method-pluck

Contains: https://laravel.com/docs/6.x/collections#method-contains

Update

Was going through my old answers and decided to make a change to this answer.

firstWhere() is more efficient for this task.

public function view(User $user, Company $company)
{
    return $user->companys->firstWhere('id', $company->id);
}