php - Can't retrieve records using foreign key on the same table in Laravel 5.2 -


i'm using laravel 5.2 retrieve records database.

my table (simplified):

services: id name parent_id

parent_id fk same table (fk services.id).

this code returns empty collection:

$category->services->where( 'parent_id', 0 )

select other condition works properly. ex.

$category->services->where( 'name', 'foo )

returns not empty results.

raw sql works fine too:

select * services parent_id = 0;

what wrong eloquent or how use in way can retrieve records concrete parent_id ?

your query should this:

$services = $category->services()->where('parent_id', 0)->get()

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