Laravel Nested Eager Loading on Polymorphic Relationships

Sometimes you need to eager load different relationships depending on the type of model on a polymorphic relationship.

TIP

This is super easy to do with the morphWith method.

For example: you have two type of users seller and buyer, the eager load relationship for seller is the product and the eager load relationship for buyer is the order.

First setup the Models.

php

class Seller extends Model
{
    public function products()
    {
        return $this->hasMany(Product::class);
    }
}

php

class Buyer extends Model
{
    public function orders()
    {
        return $this->hasMany(Order::class);
    }
}

php

class Profile extends Model
{
    public function user()
    {
        return $this->morphTo();
    }
}

Then load the relations like the following:

php

Profile:with('user', function (MorphTo $morphTo) {
    // Eager load the products for seller
    // and orders for buyer 👇
    $morphTo->morphWith([
        Seller::class => ['products'],
        Buyer::class => ['orders'],
    ]);
})->get();

Laravel Nested Eager Loading on Polymorphic Relationships ​

Laravel Nested Eager Loading on Polymorphic Relationships