Laravel 5.3 Eloquent-从3表中选择

Question

in addition to my last question Laravel 5.3 Eloquent Relationships

i added a new table called Labels and of course create a new model for this table.

Languages

id
name
short_name

Dictionary

id
label_id
value
language_id

Labels

id
label_name

and i have this code:

$lables = Dictionary::whereHas('language', function($query) {
        $short_name = basename(__DIR__);
        $query->where('short_name', $short_name);
    })->pluck('value', 'label_id')->toArray();

I want to pull out the label_name field instead of the label_id

but I dont know how to make this join.

Answer 1

You may try using join() as

$lables = Dictionary::whereHas('language', function($query) {
                    $query->where('short_name', 'en');
                })
                ->join('labels', 'dictionary.label_id', '=', 'labels.id')
                ->pluck('dictionary.value', 'labels.label_name')
                ->toArray();

I am not 100% sure that will work, but you can give it a shot.