Eloquent Laravel (many to many) how to get data through intermediate table?

Question

Laravel

The Product and User models are connected via Feedback.
You need to select all users (User) who left feedback on the product (Product), they are listed in Feedback.

public function users()
{
    	return $this->belongsToMany('App\Users','App\Feedback', 'user_id', 'id', 'user_id');
}

Answer 1

For more convenient work with Eloquent, it is worthwhile to correctly form the architecture.
In your case, it would be more correct to create an intermediate Pivot model with a description of the necessary relationships (users, products).

class Feedback extends Pivot
{
    public function users()
    {
        return $this->belongsTo(User::class);
    }

    public function products()
    {
        return $this->belongsTo(Product::class);
    }
}

then, in the User or Product models, use this pivot-model to create the correct relationship.

class User extends Authenticatable
{
...

    public function products()
    {
        return $this->belongsToMany(Product::class,
            'feedback', 'user_id', 'product_id')
            ->using(Feedback::class)
            ->withTimestamps();
    }
}

class Product extends Model
{
...

    public function users()
    {
        return $this->belongsToMany(User::class,
            'feedback', 'product_id', 'user_id')
            ->using(Feedback::class)
            ->withTimestamps();
    }
}