How to convert Distinct Count SQL query into a Laravel Eloquent query - sql

Question

I would like to convert this SQL query into a laravel eloquent query. So I can create
SELECT
count(distinct article_id) as assigned
FROM
actions
WHERE
action_id = 1 and
set_id = 1
I can translate the query into a raw request which works
DB::table('actions')->select(DB::raw('count(DISTINCT article_id) as assigned'))
->where('action_id', 1)
->where('set_id', 1)
->get();
But I would like to figure out how to do it something like this
$sets = Set::withCount(['actions as assigned' => function ($q) {
$q->distinct()
->select('article_id')
->where('action_id', '=', 1);
}])->get();
or this
$sets = Set::withCount(['actions as assigned' => function ($q) {
$q->distinct('article_id')
->where('action_id', '=', 1);
}])->get();
Eventually I would like to have my Set model contain a scoped method like this
public function scopeWithAssignedCount($query){
$query->withCount(['actions as assigned' => function ($q) {
$q->distinct('article_id')
->where('action_id', '=', 1);
}])
}
So I can add multiple counts to a single call in my controller
$sets = Set::withAssignedCount()
->withUnassignedCount()
->where('palm' => $face)
->get();
Edited per comments
I would like to use something like the below with distinct records.
public function scopeWithAssignedCount($query)
{
$query->withCount(['actions as assigned' => function ($q) {
$q->where('action_id', 1);
}]);
}

Answer 1

Check this query
$count = Set::select('article_id as assigned');
if(!empty($action_id)){
$count = $count->where('action_id', $action_id);
}
if(!empty($set_id)){
$count = $count->where('set_id', $set_id);
}
$count = $count->distinct('article_id')->count('article_id');