How to convert sql to Laravel Eloquent - php

Question

Have specific SQL query need to convert to Laravel eloquent, I already converted getting error, does everyone help me pls?
my sql
select
`d1`.*, `a1`.`user_uuid` as `activity_user`
from
`directors` as `d1`
left join
`activities` as `a1`
on `a1`.`entity_uuid` = `d1`.`uuid`
and `a1`.`created_at` = (
select
max(`created_at`)
from
`activities` as `a2`
where `a2`.`entity_uuid`=`d1`.`uuid`
)
where `a1`.`user_uuid`='4f858f46-2d7e-41c8-a185-c9c4a4b506d1'
group by `a1`.`entity_uuid`
order by `d1`.`updated_at`
desc limit 100;
and my laravel eloquent
DB::table('directors')
->select('directors.*')
->leftJoin('activities',function($join) {
$join->on('a1.entity_uuid','=','directors.uuid')
->on('a1.created_at','=',function($query) {
$query->from('activities')
->select(DB::raw('max'('activities.created_at'))
->where('activities.entity_uuid','=',DB::raw('d1.uuid'));
});
}
->where('activities.user_uuid','=','4f858f46-2d7e-41c8-a185-c9c4a4b506d1')
->groupBy('activities.entity_uuid')
->orderBy('directors.updated_at','desc')
->get();
the error what I get
TypeError: stripos(): Argument #1 ($haystack) must be of type string, Closure given in file C:\xampp\htdocs\crmMembers\backend\vendor\laravel\framework\src\Illuminate\Database\Grammar.php on line 62

Answer 1

thanks for everyone, it solved
just change double ->on to ->where and works perfect
->where('a1.created_at', '=', function($q){$q->from('activities as a2')
->select(DB::raw('max(`a2`.`created_at`)'))
->where('a2.entity_uuidm', '=', DB::raw('`d1`.`uuid`'));
});

Answer 2

Your Laravel DB query should be like this
DB::table('directors')->select('directors.*', 'activities.user_uuid as activity_user')
->leftJoin('activities',function($join) {
$join->on('a1.entity_uuid','=','directors.uuid')
->on('a1.created_at','=',function($query) {
$query->from('activities')
->select(DB::raw('max(created_at)')
->where('activities.entity_uuid','=',DB::raw('d1.uuid'));
});
})
->where('activities.user_uuid','=','4f858f46-2d7e-41c8-a185-c9c4a4b506d1')
->groupBy('activities.entity_uuid')
->orderBy('directors.updated_at','desc')
->get();