Allow customizing through relations local keys

[muhammedkamel]

There is no way to customize the local keys of the through relations.

Imagine the following scenario:

Model A

• HasMany B

Model C

• HasOne B

Model B

• BelongsTo C
• BelongsTo B

From Model C I need to access Model A using belongsToThrough relation using B.c_id and B.a_id

The new implementation should enable this using the following

<?php

class C extends Model
{
    public function a(): BelongsToThrough
    {
        return $this->belongsToThrough(
            A::class,
            B::class,
            foreignKeyLookup: [B::class => 'id'],
            localKeyLookup: [B::class => 'c_id'],
        );
    }
}

and using this query

select "A".* from "A" inner join "B" on "B"."a_id" = "A"."id" where "B"."c_id" = 416 limit 1

[staudenmeir]

Hi @muhammedkamel,
Thanks, I'll take a look.

[muhammedkamel]

@staudenmeir any feedback?

[staudenmeir]

Thanks! I released a new version.