Laravel雄辩关系按关系列过滤

Question

I have 3 Tables

Product:[Table]

Person:[Table]

Payment:[Table]

Many To Many Relationship Between Product and Person

One To Many Relationship Between Product and Payment (One Product Has Many Payments)

One To Many Relationship Between Person and Payment (One Person Has Many Payments)

Payment:[Table]
    id
    person_id
    product_id
    amount

The thing is that i am trying to get All persons with products and Product payments filtered by person_id .

Reason is that i dont want to have any other persons record in payments.

This is actually the query i am running yeah i know its wrong cuz i cant filter it by person_id .

$query = $person::with('product', 'payment')->where('is_active', 1);

I want to achieve something like this..

 $query = $person::with(array('product', 'payment' => function ($query) {
    $query->where('person_id', '=', 'person.id');
}))->where('is_active', 1);

Answer 1

If you setup your relations like:

class Person extends Model
{
    public function payments()
    {
        return $this->hasMany(Payment::class);
    }
}

class Payment extends Model
{
    public function product()
    {
        return $this->belongsTo(Product::class);
    }
}

Then you should be able to do:

$person = Person::with('payments.product')->where('id',$personId)->where('is_active',1)->first();

Which will return a Person with all the relations loaded and you can access those like:

@foreach($person->payments as $payment)
    {{$person->name}} bought {{$payment->product->name}} for {{$payment->amount}}
@endforeach