Laravel：无法访问集合中的项目

Question

I've got some data returned as a collection from a relationship:

$item = $this->detailedItems->where('detaileditem_product_id', $productId);

when printing this out I can see the data I'm looking for but when trying to access it:

$item->detaileditem_id;

or

$item->detaileditem_name;

I'm getting an error:

Exception: Property [detaileditem_id] does not exist on this collection instance.

Answer 1

where returns a filtered collection, not a single item.

If you want the first item of that collection that matches your condition, use first:

$item = $this->detailedItems->where('detaileditem_product_id', $productId)->first();