Is it just me or are the examples in the documentation extremely confusing?

[flyingL123]

This looks like an amazing library and exactly what I need. However, I've literally read the examples 50 times trying to figure out how to accomplish what I need, but I just can't understand it. First of all, does this library work for my situation? And if so, what is the proper relationship definition?

I'm have the following relationship:

Product -> belongsTo -> SSIN -> belongsToMany -> stockableItems

I am trying to set up a stockableItems relationship on the Product model.

I can not for the life of me figure out the right way to do this. Can anyone help? Here is something I tried, using the advanced hasManyDeepFromRelations method:

public function stockableItems() {
    return $this->hasManyDeepFromRelations(
        $this->ssin(),
        (new Ssin)->stockableItems()
    );
}

This seemed to work, but then I noticed that when I retrieved $product->stockableItems, the stockableItems were actually being returned with the wrong ID. For some reason they were being assigned an ID equal to the ssin_id from the ssin_stockable_item join table.

I'm not sure if this is a bug or if my setup is wrong. Also, I probably don't even need to use the hasManyDeepFromRelations method, but as stated above, I can't figure out from the documentation how this relationship is supposed to be set up.

[staudenmeir]

The package does support this relationship, but only in Laravel 5.8:

public function stockableItems()
{
    return $this->hasManyDeep(
        StockableItem::class, [SSIN::class, 'ssin_stockable_item'], ['id'], ['ssin_id']
    );
}

There's a limitation in the underlying HasManyThrough relationship that causes the issue with incorrects IDs when the first segment is a BelongsTo relationship.

Can you upgrade to Laravel 5.8?

[flyingL123]

Thanks a lot for the reply. I should be able to upgrade to 5.8 soon. I will report back when I do. I really appreciate the help.

[flyingL123]

@staudenmeir I upgraded to 5.8, and it now works great. Thank you.