How to implement eloquent where has relationship with specific condition? - php

Question

i have a case where i need to filter results by condition in 1-n relationship
so i have this 1-n relationship in User.php
public function permits()
{
return $this->hasMany('App\Permit');
}
result i want to retrieve is users where all permits are expired (expiry on permits table = 0), because 1 user can own many permits, and the condition i need to met is from all their permits they must be expired
my current query is like this, this pulled several hundred wrong data because i didn't understand yet how to implement where all permits expiry = 0
$users = User::where('club_id',$this->id)->whereHas('permits',function($q){
$q->where('expiry','<=','0');
})->get();
current solution which is bad solution (longer time to execute), just so you guys clearer with what i want to achieve
foreach($users as $key => $user){
foreach($user->permits as $permit){
if($permit->expiry > 0){
$users->forget($key); // unset from the users collection
break;
}
}
}
any help would appreciated thank you!

Answer 1

If you want users where all permits are expired
We can achieve this from whereDoesntHave() function.
$users = User::where('club_id',$this->id)
->whereDoesntHave('permits', function($query){
// query for not expired.
// I believe the column expiry value is 0 when premit is not expired.
$query->where('expiry', 0);
})
->get();
Technically what we did was get users where doesn't have non expired permits. Literally that means all permits are expired.