Eager-loaded polymorphic relationship error #383
Description
Describe the bug
When eager-loading polymorphic relationships, the polymorphic relation appears to be ignored when retrieving from the cache.
The exception below, is raised:
Call to undefined method Admin\Models\Inventory::settings()
Eloquent Query
Scenario here is that we have SaleItems, with an associated Inventory. Each Inventory can have a polymorphic source (such as an Event).
This query then produces are an error:
$orderItems = $orderItemQuery
->with([
'saleItem.inventory.source.company',
'saleItem.inventory.source.settings',
'saleItem.inventory.source.stream',
'saleItem.pricing',
'saleItem.item'])
->latest()
->paginate($count);It's as though the source part of the eager loaded relationship, for settings or stream, is not loaded (settings exists, stream does not so I'd expect a null return). The only reason that saleItem.inventory.source.company works is because Inventory has a company() relationship too, to scope to the current tenant.
The setup for the involved models, is as below - all of them extend an abstract Model which uses the Cachable trait.
class OrderItem extends Model {
public function saleItem()
{
return $this->belongsTo(SaleItem::class);
}
}
class SaleItem {
public function inventory()
{
return $this->belongsTo(Inventory::class);
}
}
class Inventory extends Model {
public function company()
{
return $this->belongsTo(Company::class);
}
public function source()
{
return $this->morphTo('source', 'entity_type', 'entity_id');
}
}
class Event extends Model {
public function inventory(): MorphOne
{
return $this->morphOne(Inventory::class, 'inventory', 'entity_type', 'entity_id');
}
public function company()
{
return $this->belongsTo(Company::class);
}
public function settings()
{
return $this->hasOne(EventSetting::class)->withDefault();
}
public function stream()
{
return $this->hasOne(EventStream::class)->withDefault();
}
}Stack Trace
https://flareapp.io/share/x7XgnRRP#F78
Environment
- PHP: 7.4.9
- OS: MacOS 10.15
- Laravel: 8.13.0
- Model Caching: 0.11.0
Edit: Potentially related to #379 - I hadn't spotted this one before posting!